Geoprobe Systems
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    Geoprobe Systems
    Geoprobe Systems
    785-825-1842 001-785-825-1842 785-825-1842 001-785-825-1842
    > View Specs

    7822DT
    Environmental & Geotechnical Drill Rig

    7822DT performing geotechnical work at a bridge washout site.

    7822DT performing geotechnical work at a bridge washout site.
    Transporting your tooling is made even simpler with the rear blade for transporting the drop rack tool carrier.

    Transporting your tooling is made even simpler with the rear blade for transporting the drop rack tool carrier.

    Using MC5 at an Abandoned UST Site

    Using MC5 at an Abandoned UST Site
    Easy probe placement makes the 78 rigs ideal for sampling next to or near foundations.

    Easy probe placement makes the 78 rigs ideal for sampling next to or near foundations.
    The 78 Series machines have been used extensively for MIP (Membrane Interface Probe), HPT (Hydraulic Profiling Tool), and EC (Electrical Conductivity) logging projects.

    The 78 Series machines have been used extensively for MIP (Membrane Interface Probe), HPT (Hydraulic Profiling Tool), and EC (Electrical Conductivity) logging projects.
    The Geoprobe® Model 7822DT utilizing its off-road capabilities and tethered remote.

    The Geoprobe® Model 7822DT utilizing its off-road capabilities and tethered remote.
    Because of their flexibility, rotary drilling is just one of the applications suitable for the 78 Series machines. This 7822DT is running a 4 in. downhole hammer in limestone.

    Because of their flexibility, rotary drilling is just one of the applications suitable for the 78 Series machines. This 7822DT is running a 4 in. downhole hammer in limestone.
    Using 7822DT at UST site in Wisconsin during cathodic anode installation.

    Using 7822DT at UST site in Wisconsin during cathodic anode installation.
    DT22 Soil Sampling with the 7822DT

    DT22 Soil Sampling with the 7822DT
    7822DT performing geotechnical work at a bridge washout site.
    Transporting your tooling is made even simpler with the rear blade for transporting the drop rack tool carrier.
    Using MC5 at an Abandoned UST Site
    Easy probe placement makes the 78 rigs ideal for sampling next to or near foundations.
    The 78 Series machines have been used extensively for MIP (Membrane Interface Probe), HPT (Hydraulic Profiling Tool), and EC (Electrical Conductivity) logging projects.
    The Geoprobe® Model 7822DT utilizing its off-road capabilities and tethered remote.
    Because of their flexibility, rotary drilling is just one of the applications suitable for the 78 Series machines. This 7822DT is running a 4 in. downhole hammer in limestone.
    Using 7822DT at UST site in Wisconsin during cathodic anode installation.
    DT22 Soil Sampling with the 7822DT

    The Industry Benchmark for Direct Push Equipment

    The 7822DT is designed with dependability, expandability, and performance in mind. It will help you adapt to changing work roles whether you're focused on environmental, geotechnical, or exploration work.

    ❯ Contact Us

    > View Specs

    7822DT
    Environmental & Geotechnical Drill Rig

    The Industry Benchmark for Direct Push Equipment

    The 7822DT is designed with dependability, expandability, and performance in mind. It will help you adapt to changing work roles whether you're focused on environmental, geotechnical, or exploration work.

    ❯ Contact Us

    .

    Features & Options

    Click on a section below to learn more about the features and options of the 7822DT.

    Geoprobe® 7822DT V3

    Geoprobe® 7822DT V3

    The Geoprobe® Model 7822DT is a high-capacity direct push machine with a narrow platform for limited access areas and a sufficient stroke for added work space under the hammer. It was designed with specific goals in mind for the technical driller. Dependability. Expandability. Performance. These rigs will help you adapt to changing work roles whether you’re focused on environmental, geotechnical, or exploration work. From the small footprint of the 7822DT, which makes for easy maneuverability, to the power under the GH60 Series hammer, we think you’ll wonder why you don’t already own this machine.

    The Geoprobe® Manufactured GH63 Hammer with Bi-Directional Rotation

    The Geoprobe® Manufactured GH63 Hammer with Bi-Directional Rotation

    Exclusively from Geoprobe Systems®!  Who but Geoprobe Systems® dedicates an entire R&D team to design, test, and build a hammer that, time and again, drives a machine ahead of its field?  The GH63 Percussion Hammer, the heart of the 7822DT, continues to impress machine owners.  The Modular Percussion Power Cell Technology saves owners money and time when it comes to service.  The power cell section can be quickly removed then economically shipped via standard overnight carriers for easy service and quick turnaround.  More Power.  Easier Serviceability.  It’s the GH63 Hammer ... and it’s only from Geoprobe Systems®!

    4 Speed Augerhead Attachment

    4 Speed Augerhead Attachment

    Now you have two options for rotary work.  The GA4100 four-speed augerhead (shown) provides the same high torque (4,000 ft. lb.) as the popular GA4000 but with two additional high speeds pushing its top speed over 700 rpm.  The result is a compact drill head with versatile performance for drilling jobs varying from torquing-in hollow stem augers to high-speed rock coring applications.  Shifting between speeds is as simple as touching a toggle switch to shift-on-the-fly from 1st to 2nd and 3rd to 4th.  A manual lever on the head is used to shift from 2nd to 3rd.  The GA4100 and the two-speed GA4000 are integrated onto a swing-out mounting system.

    Video: Automatic Drop Hammer Overview

    78 Series Automatic Drop Hammer DH103

    78 Series Automatic Drop Hammer DH103

    The 7822DT can be equipped with an automatic drop hammer (optional) for performing SPT testing for geotechnical investigations. The 7822DT can advance borings for SPT testing by augering, driven casing and sampling, or wash boring. The compact size of the 7822DT enables it to access remote areas.

    Video: 7822DT Winch Options

    A quick change hook and overshot clevis assembly adds to the multipurpose function of the dual winch system.

    A quick change hook and overshot clevis assembly adds to the multipurpose function of the dual winch system.

    Overhead hydraulic winches are an essential part of many drilling operations. Several hydraulic winch options are available for the Geoprobe® 7822DT to build a rig to meet your specific needs. The winch option that provides maximum versatility is the dual winch system. This is typically configured with a 2,500-lb. winch for the more difficult pulling and an 1,100-lb. winch for the faster, deeper wireline work. The 2,500-lb. winch operates at up to 125 feet per minute and includes 75 feet of wire rope. The 1,100-lb. winch operates at 220 feet per minute and includes 250 feet of wire rope. The 1,100-lb. winch come equipped with a quick-change hook and overshot clevis - a feature exclusive to Geoprobe Systems®. When ready to switch from pulling to coring, simply swap out the swivel hook for the overshot clevis installed on your overshot, and continue working. It’s quick, simple, and can all be done by hand. A single winch system is also available for 78 series machines, when a dual winch may not be necessary. When machine transport height is a limiting factor, a single winch system with a rotating mast top is available. This configuration reduces transport height by 14 inches and is helpful when loading the rig into an enclosed trailer or shipping container. 

    Hydraulic liner extruder mount with dropdown work surface

    Hydraulic liner extruder mount with dropdown work surface

    The frame rail is designed to make the 7822DT expandable. A number of optional features can be mounted to the track system on this rig.

    Video: Wireless Remote Overview

    Tracking the 7822DT with a wireless remote

    Tracking the 7822DT with a wireless remote

    The 7822DT comes with a wireless remote and a tethered remote for machine transport.

    Built-in oscillation for easy alignment on uneven terrain, slopes, and hills

    Built-in oscillation for easy alignment on uneven terrain, slopes, and hills

    The 7822DT feature built-in oscillation for easy setup on sites with rough terrain, uneven slopes, or hills.  The machine remains stable while the field operator aligns the probe cylinder and tool string on a straight path into the subsurface.  Built-in oscillation ... a standard feature on 7822DT rigs!

    Tooling Transport Rack being dropped in place by the Rear Stabilizer Blade

    Tooling Transport Rack being dropped in place by the Rear Stabilizer Blade

    Used to stabilize the machine as well as transport the optional Drop Rack System.

    Control Panel on the 7822DT

    Control Panel on the 7822DT

    All of the machine’s functions are at your fingertips in a well-organized, compact control panel.  The new Systems Display, standard on the updated 7822DT control panel, provides real-time systems analysis and a suite of built-in diagnostic tools. Also included are system safeguards that protect the main engine and hydraulic components when important operational parameters are compromised.  It’s all there to assist the rig operator.

    7-in. Single Clamp Breakout for the 7822DT

    7-in. Single Clamp Breakout for the 7822DT

    With an adjustable clamp force of up to 17,500 lbf., the 7822DT breakout has an opening of 7 in. with hardened jaw pads to firmly grip casing.  The breakout, which can be positioned either under the hammer or the auger drive, has a side pivot allowing it to swing over and away from the hole when not in use.  The breakout can be retrofitted on to all 7822DT rigs already in the field.  An optional Coring Upgrade Kit (217024) is also available to firmly grip thin-walled 2.75 in. OD casing without damage to the casing.  The kit includes formed jaw pads and a circle wrench with carbide inserts.

    Video: 7822DT V3 Updates

    Geoprobe® 7822DT V3

    Geoprobe® 7822DT V3

    Recently, the version 3 7822DT was released. This update focused on increased stability, enhanced hydraulic cooling, and decreased fuel consumption. Below are some details.

    Increased Stability
    More than ever, customers are taking the 7822DT to sites that include difficult terrain.  The proven track undercarriage has been widened 9.5 inches.  Increased track width improves stability on sideslopes, especially when hauling tools in optional side racks.  The track system has also been moved forward 6 inches in relation to the powertrain and drill mast.  Why?  Over the last few years we’ve seen an increase in customers who are ‘loading the drillmast’ with optional features for rotary applications (i.e. 4 speed coring head, dual winches, breakout, etc).  These features add weight to the drillmast portion of the rig.  By moving the tracks forward users will experience better fore/aft stability making it easier for users to operate on job sites safely.

    Enhanced Hydraulic Cooling
    Load sense hydraulics of the V3 machines supply only the system pressure required to perform requested tasks.  Under light or no load conditions, system pressure is lowered, significantly reducing heating of the hydraulic fluid.  This feature is especially helpful when operating in elevated ambient temperatures and performing high duty cycle operations such as coring, augering, or tracking long distances.

    Decreased Fuel Consumption
    The V3 operational controls allow the hydraulic system load on the engine to vary depending on the need of the requested task.  For many operations, engine load is reduced and therefore less fuel is consumed as compared to systems that maintain high operating pressures for every task regardless of need.

    7822DT (left) and 7822LC (right - low clearance option)

    7822DT (left) and 7822LC (right - low clearance option)

    Additional features and options on the 7822DT include:

    • A Low Clearance Option
    • Auxilliary Hydraulic Power Ports
    • Moyno® 2L4 Positive Displacement Pump
    • Moyno® Hose Kit
    • Side-Mount Rod Rack
    • Drop Rack System
    • Drop Rack with 50 gal. Pressure Washer System
    • 25 gal. Water Transport System
    • Rear Blade Forks
    • Rotational Safety Cage
    • Machine Vise
    • Accessory Mounting Brackets
    • Display Screen Heater Kit
    • Head Feed Pressure Control Module
    • High-Speed Water Swivel with Floating Sub

    Features & Options

    Geoprobe® 7822DT V3

    Geoprobe® 7822DT V3

    Video: Geoprobe® 7822DT Overview

    The Geoprobe® Model 7822DT is a high-capacity direct push machine with a narrow platform for limited access areas and a sufficient stroke for added work space under the hammer. It was designed with specific goals in mind for the technical driller. Dependability. Expandability. Performance. These rigs will help you adapt to changing work roles whether you’re focused on environmental, geotechnical, or exploration work. From the small footprint of the 7822DT, which makes for easy maneuverability, to the power under the GH60 Series hammer, we think you’ll wonder why you don’t already own this machine.

    GH60 Series Percussion Hammer

    The Geoprobe® Manufactured GH63 Hammer with Bi-Directional Rotation

    The Geoprobe® Manufactured GH63 Hammer with Bi-Directional Rotation

    Exclusively from Geoprobe Systems®!  Who but Geoprobe Systems® dedicates an entire R&D team to design, test, and build a hammer that, time and again, drives a machine ahead of its field?  The GH63 Percussion Hammer, the heart of the 7822DT, continues to impress machine owners.  The Modular Percussion Power Cell Technology saves owners money and time when it comes to service.  The power cell section can be quickly removed then economically shipped via standard overnight carriers for easy service and quick turnaround.  More Power.  Easier Serviceability.  It’s the GH63 Hammer ... and it’s only from Geoprobe Systems®!

    Augerhead (2 and 4 speed)

    4 Speed Augerhead Attachment

    4 Speed Augerhead Attachment

    Now you have two options for rotary work.  The GA4100 four-speed augerhead (shown) provides the same high torque (4,000 ft. lb.) as the popular GA4000 but with two additional high speeds pushing its top speed over 700 rpm.  The result is a compact drill head with versatile performance for drilling jobs varying from torquing-in hollow stem augers to high-speed rock coring applications.  Shifting between speeds is as simple as touching a toggle switch to shift-on-the-fly from 1st to 2nd and 3rd to 4th.  A manual lever on the head is used to shift from 2nd to 3rd.  The GA4100 and the two-speed GA4000 are integrated onto a swing-out mounting system.

    Automatic Drop Hammer

    78 Series Automatic Drop Hammer DH103

    78 Series Automatic Drop Hammer DH103

    Video: Automatic Drop Hammer Overview

    The 7822DT can be equipped with an automatic drop hammer (optional) for performing SPT testing for geotechnical investigations. The 7822DT can advance borings for SPT testing by augering, driven casing and sampling, or wash boring. The compact size of the 7822DT enables it to access remote areas.

    Overhead Mast with Dual Winches

    A quick change hook and overshot clevis assembly adds to the multipurpose function of the dual winch system.

    A quick change hook and overshot clevis assembly adds to the multipurpose function of the dual winch system.

    Video: 7822DT Winch Options

    Overhead hydraulic winches are an essential part of many drilling operations. Several hydraulic winch options are available for the Geoprobe® 7822DT to build a rig to meet your specific needs. The winch option that provides maximum versatility is the dual winch system. This is typically configured with a 2,500-lb. winch for the more difficult pulling and an 1,100-lb. winch for the faster, deeper wireline work. The 2,500-lb. winch operates at up to 125 feet per minute and includes 75 feet of wire rope. The 1,100-lb. winch operates at 220 feet per minute and includes 250 feet of wire rope. The 1,100-lb. winch come equipped with a quick-change hook and overshot clevis - a feature exclusive to Geoprobe Systems®. When ready to switch from pulling to coring, simply swap out the swivel hook for the overshot clevis installed on your overshot, and continue working. It’s quick, simple, and can all be done by hand. A single winch system is also available for 78 series machines, when a dual winch may not be necessary. When machine transport height is a limiting factor, a single winch system with a rotating mast top is available. This configuration reduces transport height by 14 inches and is helpful when loading the rig into an enclosed trailer or shipping container. 

    Frame Rail Design for Adding Machine Accessories

    Hydraulic liner extruder mount with dropdown work surface

    Hydraulic liner extruder mount with dropdown work surface

    The frame rail is designed to make the 7822DT expandable. A number of optional features can be mounted to the track system on this rig.

    Tethered and Wireless Control

    Tracking the 7822DT with a wireless remote

    Tracking the 7822DT with a wireless remote

    Video: Wireless Remote Overview

    The 7822DT comes with a wireless remote and a tethered remote for machine transport.

    Integrated Drill Mast Oscillation

    Built-in oscillation for easy alignment on uneven terrain, slopes, and hills

    Built-in oscillation for easy alignment on uneven terrain, slopes, and hills

    The 7822DT feature built-in oscillation for easy setup on sites with rough terrain, uneven slopes, or hills.  The machine remains stable while the field operator aligns the probe cylinder and tool string on a straight path into the subsurface.  Built-in oscillation ... a standard feature on 7822DT rigs!

    Rear Blade for Stabilization and Tooling Transport

    Tooling Transport Rack being dropped in place by the Rear Stabilizer Blade

    Tooling Transport Rack being dropped in place by the Rear Stabilizer Blade

    Used to stabilize the machine as well as transport the optional Drop Rack System.

    Control Panel

    Control Panel on the 7822DT

    Control Panel on the 7822DT

    All of the machine’s functions are at your fingertips in a well-organized, compact control panel.  The new Systems Display, standard on the updated 7822DT control panel, provides real-time systems analysis and a suite of built-in diagnostic tools. Also included are system safeguards that protect the main engine and hydraulic components when important operational parameters are compromised.  It’s all there to assist the rig operator.

    7 in. Single Clamp Breakout

    7-in. Single Clamp Breakout for the 7822DT

    7-in. Single Clamp Breakout for the 7822DT

    With an adjustable clamp force of up to 17,500 lbf., the 7822DT breakout has an opening of 7 in. with hardened jaw pads to firmly grip casing.  The breakout, which can be positioned either under the hammer or the auger drive, has a side pivot allowing it to swing over and away from the hole when not in use.  The breakout can be retrofitted on to all 7822DT rigs already in the field.  An optional Coring Upgrade Kit (217024) is also available to firmly grip thin-walled 2.75 in. OD casing without damage to the casing.  The kit includes formed jaw pads and a circle wrench with carbide inserts.

    Version 3 Updates

    Geoprobe® 7822DT V3

    Geoprobe® 7822DT V3

    Video: 7822DT V3 Updates

    Recently, the version 3 7822DT was released. This update focused on increased stability, enhanced hydraulic cooling, and decreased fuel consumption. Below are some details.

    Increased Stability
    More than ever, customers are taking the 7822DT to sites that include difficult terrain.  The proven track undercarriage has been widened 9.5 inches.  Increased track width improves stability on sideslopes, especially when hauling tools in optional side racks.  The track system has also been moved forward 6 inches in relation to the powertrain and drill mast.  Why?  Over the last few years we’ve seen an increase in customers who are ‘loading the drillmast’ with optional features for rotary applications (i.e. 4 speed coring head, dual winches, breakout, etc).  These features add weight to the drillmast portion of the rig.  By moving the tracks forward users will experience better fore/aft stability making it easier for users to operate on job sites safely.

    Enhanced Hydraulic Cooling
    Load sense hydraulics of the V3 machines supply only the system pressure required to perform requested tasks.  Under light or no load conditions, system pressure is lowered, significantly reducing heating of the hydraulic fluid.  This feature is especially helpful when operating in elevated ambient temperatures and performing high duty cycle operations such as coring, augering, or tracking long distances.

    Decreased Fuel Consumption
    The V3 operational controls allow the hydraulic system load on the engine to vary depending on the need of the requested task.  For many operations, engine load is reduced and therefore less fuel is consumed as compared to systems that maintain high operating pressures for every task regardless of need.

    Additional Features and Options

    7822DT (left) and 7822LC (right - low clearance option)

    7822DT (left) and 7822LC (right - low clearance option)

    Additional features and options on the 7822DT include:

    • A Low Clearance Option
    • Auxilliary Hydraulic Power Ports
    • Moyno® 2L4 Positive Displacement Pump
    • Moyno® Hose Kit
    • Side-Mount Rod Rack
    • Drop Rack System
    • Drop Rack with 50 gal. Pressure Washer System
    • 25 gal. Water Transport System
    • Rear Blade Forks
    • Rotational Safety Cage
    • Machine Vise
    • Accessory Mounting Brackets
    • Display Screen Heater Kit
    • Head Feed Pressure Control Module
    • High-Speed Water Swivel with Floating Sub

    Machine Features Photo

    7822DT Machine Features

    Tooling & Accessories

    Click on a section below to learn more about the tooling & accessories for the 7822DT.

    Using the automatic drop hammer to perform foundation testing.

    Using the automatic drop hammer to perform foundation testing.

    Typical tooling that can be run with the 7822DT include:

    • 60-in. Direct Push Tooling
    • Probe Rod Sizes: 3.75 in., 3.5 in., 3.25 in., 2.25 in., 1.5 in., 1.25 in.*
    • Direct Image® Tooling
    • Macro Core® MC5 Soil Sampling
    • DT22 Soil Sampling
    • DT325 / DT35 / DT375 Dual Tube Soil Sampling
    • SP22 Groundwater Sampling
    • SP16 Groundwater Sampling
    • 2.0 in., 1.5 in., 1.0 in., 0.75-in. Prepacked Monitoring Well 
      Installations
    • 4.25 in. and 6.25 in. HSA System

    ​​*Center Rod Use Only

    Video: DT22 Soil Sampling System Overview

    The Geoprobe® DT22 Soil Sampling System is a direct push system for collecting continuous core samples of unconsolidated materials from within a sealed casing of Geoprobe® 2.25 in. outside diameter probe rods. Samples are collected and retrieved within a liner that is threaded onto the leading end of a string of Geoprobe® 1.25 in. OD light-weight center rods and are inserted to the bottom of the outer casing.

    Video: 3.75-inch Tooling System

    The DT35 Soil Sampling System, designed for use with 3.5 in. probe rods, uses a unique combination of the cutting shoe, sheath, and liner retainer to allow efficient recovery of samples in formations ranging from plastic clays to saturated sands. The DT35 system is designed to quickly recover samples well below the water table. Problems with liner failure or having the liner lodge in sample sheath are virtually eliminated with this system.

    The Geoprobe® Screen Point 22 System

    The Geoprobe® Screen Point 22 System

    The Screen Point 22 (SP22) Groundwater Sampler from Geoprobe Systems® was designed to keep the screen away from all percussive energy while the sampler is lowered downhole, thus extending the life of the screen.

    The SP22 can be used alone as a groundwater grab sampler or groundwater profiling tool, or with the DT22 Soil Sampling System. The screens can be deployed using either 1.25-in. Lightweight Center Rods or PVC riser.

    The screen head adapts to either a stainless steel or PVC screen. Designed for tough probing conditions, the fully retrievable sampler works well with the 8040DT machine or with 77 or 66 Series machines.

    Video: Macro-Core® Center Rod

    Our MC5 Soil Sampling System is a single tube, discrete or continuous system with unmatched durability.

    MC5 Light Weight Center Rod Soil Sampling System The MC5 1.25 in. Center Rod System was designed for the absolute worst of the worst direct push probing conditions. “These are conditions that we normally do not recommend probing in,” according to Mike Carlin, Project Engineer, “so we developed the toughest soil sampling system in the direct push industry ... it’s a brute!”

    Video: Interlocking Split Spoon Overview

    The interlocking design self aligns during assembly and is quick to disassemble

    The interlocking design self aligns during assembly and is quick to disassemble

    Our patented interlocking split spoon sampler is a unique geotechnical innovation from Geoprobe® that is engineered to greatly benefit your field team. It is built to be 2X stronger, last longer, and saves both money and field time over a conventional split spoon. Additionally, it meets ASTM Standard D1586.

    The interlocking design provides axial alignment of the tube halves, making for a quicker assembly of the sampler. Each time it goes together it self aligns, creating a perfect fit. With the threads aligned, the cutting shoe and drive head can be threaded to the split spoon. The threads are a multi-lead, which requires fewer turns during assembly and disassembly over conventional split spoons. Less time is spent during assembly and disassembly, which speeds up each test interval.

    In additional to time savings, the interlocking split sheath has two times the strength and durability of conventional split spoons. Enhanced material properties and manufacturing result in greater longevity. Design plays an important role as well. Each interlocking point keeps the two tube halves engaged throughout the sampling process. The strength of these connections prevents the sampler from bulging in dense materials. It also keeps the tube halves tightly engaged even when over-filling of the sampler occurs.

    *Split tube soil sampling system manufactured under U.S. Patent 9,551,188

    Video: OIP Overview

    Direct Image® tooling systems vertically log in-situ soil characteristics such as lithology, electrical conductivity, permeability, VOC contaminant content, various other geotechnical parameters, and fluorescence. These logs can then be combined to create accurate, highly detailed conceptual site models…the critical first step in any site investigation. Our Direct Image® systems include OIP, EC, MIP, LL MIP, MiHpt, HPT, CPT, and PST

    Video: Hydraulic Liner Extruder Overview

    This tool sure makes life easier in the field. In the middle of a busy day, you don’t need the hassles associated with a stubborn, stuck liner.

    The Geoprobe® Hydraulic Liner Extruder is simple to use and can be adapted to most Geoprobe® machines with auxiliary hydraulics. “It mounts to the machine’s side receiver hitches in just a few minutes,” says Dave Golden, Project Lead, “and it’s perfect for pushing sluggish or stuck liners from the Macro-Core® sample tubes.” A two-piece adapter converts the extruder assembly to accommodate larger diameter DT325 sample tubes. “It won’t get every liner every time,” Dave added, “but our customers will appreciate having this device in the field for all of the stuck liners it does free.”

    Using the Hydraulic Liner Extruder is simple. A Macro-Core®, DT22, DT325, or DT45 Sample Tube with the sluggish liner is threaded on to the front end of the extruder. As the hydraulic "push" is applied to the opposite end of the extruder, the liner is slowly pushed from inside the Sample Tube and out the end of the extruder.

    Macro-Core® is a registered trademark of Kejr, Inc., Salina, KS.

    Video: Spring Assisted Swivel Pull Cap Overview

    2.25 in. Spring Assisted Pull Cap - Pin (Left) and Box (Right)

    2.25 in. Spring Assisted Pull Cap - Pin (Left) and Box (Right)

    The 2.25 in. Spring Assisted Swivel Pull Cap is designed to reduce operator fatigue when adding or removing sections of rods to the inner tool string. The internal springs of the pull cap bear the weight of the rod string. With minimal effort, the operator can adjust the rod string up or down when threading or unthreading the rods. The natural self-alignment of the rod string prevents tipping off center and binding of the threads.

    Tooling & Accessories


    Overview
    Using the automatic drop hammer to perform foundation testing.

    Using the automatic drop hammer to perform foundation testing.

    Typical tooling that can be run with the 7822DT include:

    • 60-in. Direct Push Tooling
    • Probe Rod Sizes: 3.75 in., 3.5 in., 3.25 in., 2.25 in., 1.5 in., 1.25 in.*
    • Direct Image® Tooling
    • Macro Core® MC5 Soil Sampling
    • DT22 Soil Sampling
    • DT325 / DT35 / DT375 Dual Tube Soil Sampling
    • SP22 Groundwater Sampling
    • SP16 Groundwater Sampling
    • 2.0 in., 1.5 in., 1.0 in., 0.75-in. Prepacked Monitoring Well 
      Installations
    • 4.25 in. and 6.25 in. HSA System

    ​​*Center Rod Use Only

    DT22

    Video: DT22 Soil Sampling System Overview

    The Geoprobe® DT22 Soil Sampling System is a direct push system for collecting continuous core samples of unconsolidated materials from within a sealed casing of Geoprobe® 2.25 in. outside diameter probe rods. Samples are collected and retrieved within a liner that is threaded onto the leading end of a string of Geoprobe® 1.25 in. OD light-weight center rods and are inserted to the bottom of the outer casing.

    > Learn More
    DT35 / DT37

    Video: 3.75-inch Tooling System

    The DT35 Soil Sampling System, designed for use with 3.5 in. probe rods, uses a unique combination of the cutting shoe, sheath, and liner retainer to allow efficient recovery of samples in formations ranging from plastic clays to saturated sands. The DT35 system is designed to quickly recover samples well below the water table. Problems with liner failure or having the liner lodge in sample sheath are virtually eliminated with this system.

    > Learn More
    Groundwater
    The Geoprobe® Screen Point 22 System

    The Geoprobe® Screen Point 22 System

    The Screen Point 22 (SP22) Groundwater Sampler from Geoprobe Systems® was designed to keep the screen away from all percussive energy while the sampler is lowered downhole, thus extending the life of the screen.

    The SP22 can be used alone as a groundwater grab sampler or groundwater profiling tool, or with the DT22 Soil Sampling System. The screens can be deployed using either 1.25-in. Lightweight Center Rods or PVC riser.

    The screen head adapts to either a stainless steel or PVC screen. Designed for tough probing conditions, the fully retrievable sampler works well with the 8040DT machine or with 77 or 66 Series machines.

    > Learn More
    Macro-Core® MC5

    Video: Macro-Core® Center Rod

    Our MC5 Soil Sampling System is a single tube, discrete or continuous system with unmatched durability.

    MC5 Light Weight Center Rod Soil Sampling System The MC5 1.25 in. Center Rod System was designed for the absolute worst of the worst direct push probing conditions. “These are conditions that we normally do not recommend probing in,” according to Mike Carlin, Project Engineer, “so we developed the toughest soil sampling system in the direct push industry ... it’s a brute!”

    Interlocking Split Spoon

    Video: Interlocking Split Spoon Overview

    The interlocking design self aligns during assembly and is quick to disassemble

    The interlocking design self aligns during assembly and is quick to disassemble

    Our patented interlocking split spoon sampler is a unique geotechnical innovation from Geoprobe® that is engineered to greatly benefit your field team. It is built to be 2X stronger, last longer, and saves both money and field time over a conventional split spoon. Additionally, it meets ASTM Standard D1586.

    The interlocking design provides axial alignment of the tube halves, making for a quicker assembly of the sampler. Each time it goes together it self aligns, creating a perfect fit. With the threads aligned, the cutting shoe and drive head can be threaded to the split spoon. The threads are a multi-lead, which requires fewer turns during assembly and disassembly over conventional split spoons. Less time is spent during assembly and disassembly, which speeds up each test interval.

    In additional to time savings, the interlocking split sheath has two times the strength and durability of conventional split spoons. Enhanced material properties and manufacturing result in greater longevity. Design plays an important role as well. Each interlocking point keeps the two tube halves engaged throughout the sampling process. The strength of these connections prevents the sampler from bulging in dense materials. It also keeps the tube halves tightly engaged even when over-filling of the sampler occurs.

    *Split tube soil sampling system manufactured under U.S. Patent 9,551,188

    > Learn More
    Direct Image®

    Video: OIP Overview

    Direct Image® tooling systems vertically log in-situ soil characteristics such as lithology, electrical conductivity, permeability, VOC contaminant content, various other geotechnical parameters, and fluorescence. These logs can then be combined to create accurate, highly detailed conceptual site models…the critical first step in any site investigation. Our Direct Image® systems include OIP, EC, MIP, LL MIP, MiHpt, HPT, CPT, and PST

    > Learn More

    Hydraulic Liner Extruder

    Video: Hydraulic Liner Extruder Overview

    This tool sure makes life easier in the field. In the middle of a busy day, you don’t need the hassles associated with a stubborn, stuck liner.

    The Geoprobe® Hydraulic Liner Extruder is simple to use and can be adapted to most Geoprobe® machines with auxiliary hydraulics. “It mounts to the machine’s side receiver hitches in just a few minutes,” says Dave Golden, Project Lead, “and it’s perfect for pushing sluggish or stuck liners from the Macro-Core® sample tubes.” A two-piece adapter converts the extruder assembly to accommodate larger diameter DT325 sample tubes. “It won’t get every liner every time,” Dave added, “but our customers will appreciate having this device in the field for all of the stuck liners it does free.”

    Using the Hydraulic Liner Extruder is simple. A Macro-Core®, DT22, DT325, or DT45 Sample Tube with the sluggish liner is threaded on to the front end of the extruder. As the hydraulic "push" is applied to the opposite end of the extruder, the liner is slowly pushed from inside the Sample Tube and out the end of the extruder.

    Macro-Core® is a registered trademark of Kejr, Inc., Salina, KS.

    > Learn More
    Spring Assisted Swivel Pull Cap

    Video: Spring Assisted Swivel Pull Cap Overview

    2.25 in. Spring Assisted Pull Cap - Pin (Left) and Box (Right)

    2.25 in. Spring Assisted Pull Cap - Pin (Left) and Box (Right)

    The 2.25 in. Spring Assisted Swivel Pull Cap is designed to reduce operator fatigue when adding or removing sections of rods to the inner tool string. The internal springs of the pull cap bear the weight of the rod string. With minimal effort, the operator can adjust the rod string up or down when threading or unthreading the rods. The natural self-alignment of the rod string prevents tipping off center and binding of the threads.

    > Learn More

    Applications

    Angle Probing

    Angle Probing

    Easy probe placement makes the 78 rigs ideal for sampling next to or near foundations, or inside hard-to-reach places.

    Augering

    Augering

    Turning augers for well installation and other environmental investigations is made easy with the power of the 78 Series machines and augerheads.

    Concrete Coring

    Concrete Coring

    A 5-in. concrete core opens up the subsurface for sampling or monitoring well installation.

    Cone Penetration Testing

    Cone Penetration Testing

    The augerhead torque allows insertion of ample-sized anchors to stabilize the machine. Up to 9 tons of push is typical for this platform.

     

    Diamond Core Drilling

    Diamond Core Drilling

    This 7822DT cored through rock to 150 feet using industry standard NQ wireline diamond core drilling tools.

    Direct Image® Subsurface Logging

    Direct Image® Subsurface Logging

    These machines have been used extensively for MIP, HPT, and EC logging projects.

    Monitoring Well Installation

    Monitoring Well Installation

    Prepacked screen monitoring wells can be installed through driven 2.25-, 3.25-, 3.5-, or 3.75-in. casing.

    Gasfield Exploration

    Gasfield Exploration

    Sampling at a new oil and gas development site.

     

    Geotechnical Investigations

    Geotechnical Investigations

    Geotechnical information is collected for a new mining site.

    Mineral Exploration

    Mineral Exploration

    Core samples were taken of permafrost during this site investigation.

    Oil Field Investigations

    Oil Field Investigations

    A 7800 is used to install monitoring wells in an oil field.

    Rock Coring

    Rock Coring

    Coring through rock with the 7822DT and a 3.5 in. DTH Air Hammer.

     

    Sediment Sampling

    Sediment Sampling

    Macro-Core® sediment sampling in the riverbed during the investigation of a coal tar problem.

    Soil Sampling

    Soil Sampling

    A 7822DT collects cored borings from 190 ft. in a remote area of a national forest.

    Standard Penetration Testing (SPT)

    Standard Penetration Testing (SPT)

    78 Series machines can be equipped with an automatic drop hammer (optional) for performing SPT testing for geotechnical investigations.

    Storage Tank Investigations

    Storage Tank Investigations

    Collecting soil and groundwater samples to determine the extent of contamination from a leaking underground fuel line with a 7822DT.

    Videos


    Overview

    Geoprobe® Model 7822DT

    > Learn More
    ID: 11476

    Geoprobe® 7822DT Version 3 Updates

    > Learn More
    ID: 18714

    Features & Options

    Geoprobe® Automatic Drop Hammer Overview


    ID: 17742

    78 Series Winch Options


    ID: 16667

    7822DT EZ12 Hauler


    ID: 19637

    Tooling & Sampling

    Interlocking Split Spoon Overview

    > Learn More
    ID: 17833

    Interlocking Split Spoon Assembly

    > Learn More
    ID: 18819

    Geoprobe® 7822DT - Driving 3.75 in. Tooling to 30 Feet

    > Learn More
    ID: 16850

    Collecting Split Spoon Samples

    > Learn More
    ID: 10616

    DT22 Soil Sampling System Overview


    ID: 17741

    7822DT Running DT22 System

    > Learn More
    ID: 10617

    Geoprobe® 7822DT Concrete Coring

    > Learn More
    ID: 10604

    7822DT Confirmatory Rock Sampling

    > Learn More
    ID: 11648

    7822DT Concrete Coring

    > Learn More
    ID: 17780

    Geoprobe® 3.75-inch Tooling System


    ID: 16818

    Accessories

    Geoprobe® Exclusive Quick Change Hook

    > Learn More
    ID: 16667

    Geoprobe® Hydraulic Liner Extruder

    > Learn More
    ID: 10688

    Portable Hydraulic Rod Clamp Overview

    > Learn More
    ID: 16815

    Geoprobe® 2.25 in. Spring Assisted Swivel Pull Cap


    ID: 16849

    Training

    7822DT Training Essentials: Introduction

    > Learn More
    ID: 14918

    7822DT Training Essentials: Daily Check

    > Learn More
    ID: 14612

    7822DT Training Essentials: Start & Cold Start

    > Learn More
    ID: 14614

    7822DT Training Essentials: Safety

    > Learn More
    ID: 14614

    7822DT Training Essentials: Wireless Remote

    > Learn More
    ID: 14619

    7822DT Training Essentials: Tethered Remote

    > Learn More
    ID: 14618

    7822DT Training Essentials: Auger Pulling

    > Learn More
    ID: 14617

    7822DT Training Essentials: Systems Display Basics

    > Learn More
    ID: 14616

    7822DT Training Essentials: Transport & Operating Positions

    > Learn More
    ID: 14616

    Offloading a 7822DT

    > Learn More
    ID: 11558

    Direct Image®

    Geoprobe® Electrical Conductivity (EC) Logging

    > Learn More
    ID: 10680

    OIP Overview

    > Learn More
    ID: 16832

    Geoprobe® Pneumatic Slug Test

    > Learn More
    ID: 10679

    OIP Setup

    > Learn More
    ID: 17725

    Geoprobe® STA Software for Pneumatic Slug Testing

    > Learn More
    ID: 10679

    Maintenance

    Wireless Remote Overview (Magnetek)


    ID: 19835

    Wireless Remote Re-Association (Magnetek)


    ID: 19834

    7822DT Purging Air from the Hydraulic Pump


    ID: 17906

    Hammer Charge Procedure


    ID: 18919

    Fuel Line Bleeding


    ID: 17927

    7822DT Priority 2 Cooling


    ID: 18941

    7822DT Removing & Installing Rubber Tracks


    ID: 17941

    7822DT Tethered Remote Overview


    ID: 17941

    Wireless Remote Overview (Cervis)


    ID: 17942

    Wireless Remote Re-Association (Cervis)


    ID: 17942

    Specifications

    Click below to view standard specifications. Specifications are subject to change without notice.

    Overall Dimensions
    Width (in)70Width (mm)1778
    Length (transport) (in)133Length (transport) (mm)3378
    Length (deployed, lateral fully extended) (in)153Length (deployed, lateral fully retracted) (mm)3886
    Height (normal transport) (in)100Height (normal transport) (mm)2540
    Height (deployed; winch mast up) (in)187Height (deployed; winch mast up) (mm)4750
    Height (deployed; winch mast up) (ft)15.6Height (deployed; winch mast up) (m)4.75
    Base Unit Weight (lbs)8,160Base Unit Weight (kg)3,701
    Unit Weight (w/ typical options) lbs9,560Unit Weight (w/ typical options) kg4,336
    Ground Speed (mph)5Ground Speed (kph)8.0
    Estimated Track Surface Area (in²)1656Estimated Track Surface Area (cm²)10,681
    Estimated Ground Pressure (psi)5.8Estimated Ground Pressure (bar)0.40
    Drill Mast Positioning
    Head Travel (in)78Head Travel (mm)1981
    Head Travel (ft)6.5Head Travel (m)1.98
    Head Crowd Force (lbs) 36,000Head Crowd Force (kN)160
    Head Pull Force (lbs) 48,000Head Pull Force (kN)214
    Head Feed CarriageComp. slidesHead Feed CarriageComp. slides
    Head Sideshift (in)NAHead Sideshift (mm)NA
    Prime Mover & Hydraulic Specs
    EngineKubota V2403M Tier 4 final/Tier 4i(LRC)EngineKubota V2403M Tier 4 final/Tier 4i(LRC)
    Engine Rated Power (hp)58Engine Rated Power (kW)43
    Fuel Capacity (gal)17Fuel Capacity (L)64
    Pump typeAxial Piston - LS-HP limitedPump typeAxial Piston - LS-HP limited
    Max pressure (psi)4,000 Max pressure (bar)276
    Max flow (gpm)40 Max flow (L/min)151
    Direct Push Hammer
    Direct Push HammerGH63Direct Push HammerGH63
    Percussion rate (Hz)32Percussion rate (Hz)32
    Hammer Rotation Torque (ft-lb)560Hammer Rotation Torque (N-m)759
    Hammer Rotation Speed (rpm)200Hammer Rotation Speed (rpm)200
    Rotary Drive Options
    2-Speed Rotary DriveGA40002-Speed Rotary DriveGA4000
    Rotation Torque (Range 1) (ft-lb)4000 Rotation Torque (Range 1) (N-m)5423
    Rotation Speed (Range 2) (rpm)150 Rotation Speed (Range 2) (rpm)150
    Hex Adapter (in)1.625 Hex Adapter (mm)41
    4-Speed Rotary DriveGA41004-Speed Rotary DriveGA4100
    Rotation Torque (Range 1) (ft-lb)4000 Rotation Torque (Range 1) (N-m)5423
    Rotation Speed (Range 4) (rpm)750 Rotation Speed (Range 4) (rpm)750
    Hex Adapter (in)1.625 Hex Adapter (mm)41
    Primary Winch
    line pull (lbf)2500 line pull (kN)11.12
    line speed (fpm)125 line speed (m/min)38
    cable length (ft)100 cable length (m)30
    Second Winch
    line pull (lbf)1100 line pull (kN)4.89
    line speed (fpm)230 line speed (m/min)70
    cable length (ft)250 cable length (m)76
    Breakout
    Single ClampSingle Clamp
    Max Clamp force (lbf)21,000 Clamp force (kN)93.41
    Breakout torque (ft-lb)6,000 Breakout torque (N-m)8135
    Min Casing size compatible (in)1.25 Min Casing size compatible (mm)32
    Max Casing size compatible (in)7 Max Casing size compatible (mm)178

    Resources

    Click on a section below to view information.

    7822DT V3
    The Best Version Yet: 7822DT V3 Builds on Tradition of Excellence

    > Read More
    Cenozoic project
    Variety Key to Business for Cenozoic

    > Read More
    Atlantic Testing drilling project
    Atlantic Testing Expands Customer Base

    > Read More
    Geoprobe® 6712DT
    Discovery Drilling Finds Right Mix

    > Read More
    DT60 Sampling with the Geoprobe® 3230DT
    Whole City Bricks Found in DT60 Core

    > Read More
    Versatility of Geoprobe® 7822DT
    Versatility of 7822DT Important to Geo Lab Success

    > Read More
    Nearly as shiny and clean as it was coming out of the factory, Geo Logic’s 66DT retrieves soil samples inside a grocery store (after hours).
    Geo Logic Makes the Most of Their Investment

    > Read More
    Geoprobe® 7822DT
    Summit Drilling Finds Veterans Important Asset for Company

    > Read More
    Geoprobe® 7822DT
    7822DT Meets Required Checklist for Holocene Drilling’s Urban Needs

    > Read More
    Sampling in the middle of a street
    Landshark Drilling Continues to Grow and Develop More Geoprobe® Services

    > Read More
    Installation of Copper Grounding Rods
    Direct Push Services in Utah Can Always Count on EDNA

    > Read More
    Geoprobe® 7822DT Air Rotary
    7822DT & Air Rotary Success

    > Read More
    Geoprobe® 7822DT
    Eichelbergers Successfully Ventures into Water Well Market with 7822DT

    > Read More
    Geoprobe® 7822DT
    Relationships and Reliability

    > Read More
    Tyler Felder and Randy Eddings use the 7822DT to rock core deep in the woods near Reidsville, NC.
    Elite Techniques Credits 7822DT’s Versatility to Continued Success

    > Read More
    Geoprobe® 7800
    Trinity Drilling is Growing & Building

    > Read More
    EPI Driller, Dave Latimer, uses a 6-in. roller bit with air to chew through some tight overburden in the Philadelphia area. The 7822DT makes switching over to air easy and a pleasure to run.
    EPI: Two Thumbs Up For Air & Mud Rotary Drilling with 7822DT

    > Read More
    With ‘I’ beams and plywood sheeting for stabilization, the 7822DT is ready to plug one of several leaky abandoned CPT boreholes. One of the abandoned boreholes had grown up to 9-in. in diameter at the surface, and had a flow rate of about 6 gpm.
    Leaking CPT Holes Cause Problems

    > Read More
    Geoprobe® 7822DT
    Stearns Drilling’s 7822DT .. Outstanding in its Field

    > Read More
    Soil Sampling - Walker Hill
    Walker Hill Field Team Completes Abandonment of 48-in. Discharge Pipe

    > Read More
    Soil Samples
    Huss Drilling Uses Multiple Rigs at Florida Site

    > Read More
    Spring Assisted Swivel Pull Cap (left, pin) 217609 and (box) 226053. Options for pin up and pin down applications.
    Spring Assisted Swivel Pull Cap

    > Read More
    A Geoprobe® 7822DT, connected to an air compressor, is used to install monitoring wells at an underground storage tank site by Cory Walker, Owner of CORTEK Drilling.
    Air Rotary Drilling with a 7822DT

    > Read More
    Percussion hammer power translates into tool advancement rates. Here’s one example ... during informal testing in our backyard, our 7822DT could drive a 3.75-in. rod string to approximately 30 feet in 21 minutes. The 3230DT advanced the 3.75-in. rods to 30 feet in well under 6 minutes. Both had a solid drive point on the lead end.
    Customers Find Success with Geoprobe® 3.75 in. Tooling

    > Read More
    Removing drill stems from 162-ft. bgs.
    7822DT Uses Air Rotary for Geothermal Loop Installation

    > Read More
    CJ, Driller, and Dalles, Helper, collect MC5 samples with a 7822DT in Cambridge, Ontario.
    Brothers Find Employees and Geoprobe® Valuable to Grow Business

    > Read More
    Very little head room. The vertical work space for this 7822DT was only 13 feet, but it was enough for Hynes & Associates to collect foundation information for structural modifications for the building.
    Limited Head Space for 7822DT

    > Read More
    Vladislav Knytl is the MIP Operator for Dekonta.
    MIP Logging Used to Investigate Site Contaminated by Mixture of VOCs

    > Read More
    7822DT - Before
    Machine Refurbish Makes Good Cents

    > Read More
    A new 7822DT that arrived at Sr. Standford Bleming College is an example of the Resource Drilling and Blasting program’s dedication to continue to use and teach with the best equipment available to the industry.
    7822DT Arrives at Sir Sandford Fleming College

    > Read More
    Geoprobe® 7822DT Augering
    EPI Targets Air Rotary/Hammer Work for 7822DT

    > Read More
    Brandon Stranz, Lead Driller for ALTECH Drilling and Investigative Services, unloads their Geoprobe® 7822DT out of a CC-130 J Hercules at 5 Wing Goose Bay, Newfoundland and Labrador. Altech’s field team operated the 7822DT at the 5 Wing Practice Training Area, an austere military training facility.
    Mission: Complete

    > Read More
    Drilling Engineers designed a barge to accommodate their Geoprobe® 7822DT for the geotechnical investigation on Erie Lake Reservoir.
    Scenic Backdrop for Erie Lake Project

    > Read More
    Geoprobe® 7822DT Dual Winch
    Dual Winch System Saves Time and Money

    > Read More
    Daniel Fisher (left) and Robert Albinger, Horizon Construction & Exploration, remove the inner drill string to allow an open and cased hole for easy installation of Cathodic Anode.
    How Did It Go? Amazing!

    > Read More
    2.0 in. Slim Prepacks and 3.75 in. Rods
    A Real Game Changer: 2.0 in. Slim Prepacks and 3.75 in. Rods

    > Read More
    James Corsitto (left), Helper, and Chris Migliore, Driller, run the ADT 7822DT rig. ADT has outfitted their 7822DT with a Side Port Swivel so they can quickly switch from direct push to wet rotary.
    ADT Increases Production With 7822DTs

    > Read More

    7822DT

    7822DT (One-Sheet)

    Literature Type: Product Sheets
    Download File: File Geoprobe_7822DT_8-14-19.pdf

    Rig Dimension Comparison - 7822DT vs. 3230DT

    Rig Dimension Comparison - 7822DT vs. 3230DT

    Literature Type: E-Specs
    Download File: File 7822DT 3230DT Size Comparison 8-15-19.pdf

    GH64 Hydraulic Hammer Nitrogen Gas Charge Instructions (7822DT, 7800)

    GH64 Hydraulic Hammer Nitrogen Gas Charge Instructions (7822DT, 7800)

    Literature Type: Service Documents
    Download File: File GH64 Charge_From 7822DT OM_V 2010 09 1.pdf

    Machine Service for 78 Series Machines (7822DT, 7800)

    Machine Service for 78 Series Machines (7822DT, 7800)

    Literature Type: Service Documents Technical Documents
    Download File: File 78_series_machines_2013_0.pdf
    7822DT performing geotechnical work at a bridge washout site.

    7822DT performing geotechnical work at a bridge washout site.
    Transporting your tooling is made even simpler with the rear blade for transporting the drop rack tool carrier.

    Transporting your tooling is made even simpler with the rear blade for transporting the drop rack tool carrier.

    Using MC5 at an Abandoned UST Site

    Using MC5 at an Abandoned UST Site
    Easy probe placement makes the 78 rigs ideal for sampling next to or near foundations.

    Easy probe placement makes the 78 rigs ideal for sampling next to or near foundations.
    The 78 Series machines have been used extensively for MIP (Membrane Interface Probe), HPT (Hydraulic Profiling Tool), and EC (Electrical Conductivity) logging projects.

    The 78 Series machines have been used extensively for MIP (Membrane Interface Probe), HPT (Hydraulic Profiling Tool), and EC (Electrical Conductivity) logging projects.
    The Geoprobe® Model 7822DT utilizing its off-road capabilities and tethered remote.

    The Geoprobe® Model 7822DT utilizing its off-road capabilities and tethered remote.
    Because of their flexibility, rotary drilling is just one of the applications suitable for the 78 Series machines. This 7822DT is running a 4 in. downhole hammer in limestone.

    Because of their flexibility, rotary drilling is just one of the applications suitable for the 78 Series machines. This 7822DT is running a 4 in. downhole hammer in limestone.
    Using 7822DT at UST site in Wisconsin during cathodic anode installation.

    Using 7822DT at UST site in Wisconsin during cathodic anode installation.
    DT22 Soil Sampling with the 7822DT

    DT22 Soil Sampling with the 7822DT
    Geoprobe® 7822DT V3

    Geoprobe® 7822DT V3
    The Geoprobe® Manufactured GH63 Hammer with Bi-Directional Rotation

    The Geoprobe® Manufactured GH63 Hammer with Bi-Directional Rotation
    4 Speed Augerhead Attachment

    4 Speed Augerhead Attachment
    78 Series Automatic Drop Hammer DH103

    78 Series Automatic Drop Hammer DH103
    A quick change hook and overshot clevis assembly adds to the multipurpose function of the dual winch system.

    A quick change hook and overshot clevis assembly adds to the multipurpose function of the dual winch system.
    Hydraulic liner extruder mount with dropdown work surface

    Hydraulic liner extruder mount with dropdown work surface
    Tracking the 7822DT with a wireless remote

    Tracking the 7822DT with a wireless remote
    Built-in oscillation for easy alignment on uneven terrain, slopes, and hills

    Built-in oscillation for easy alignment on uneven terrain, slopes, and hills
    Tooling Transport Rack being dropped in place by the Rear Stabilizer Blade

    Tooling Transport Rack being dropped in place by the Rear Stabilizer Blade
    Control Panel on the 7822DT

    Control Panel on the 7822DT
    7-in. Single Clamp Breakout for the 7822DT

    7-in. Single Clamp Breakout for the 7822DT
    Geoprobe® 7822DT V3

    Geoprobe® 7822DT V3
    7822DT (left) and 7822LC (right - low clearance option)

    7822DT (left) and 7822LC (right - low clearance option)

    Geoprobe® Machines

    We engineer and manufacturer machines for environmental, geotechnical, exploration, CPT, geothermal, and water well applications. Below you will find more information on all of our rigs. Click on them for more information.

    Rotary Sonic
    8250LS

    ❯ 8250LS
    Rotary Sonic Drill Rig

    The Geoprobe® 8250LS is a full-size rotary sonic rig capable of running 20-ft. tooling. The GV5 sonic head provides 50,000 lbs. of dynamic force for increased efficiency in the field.

    Geotechnical, Environmental, Exploration and Geothermal
    Rotary Sonic
    8150LS

    ❯ 8150LS
    Rotary Sonic Drill Rig

    The Geoprobe® 8150LS is a full-size rotary sonic rig with high performance. It is capable of running 10 ft. tooling and the GV5 sonic head provides 50,000 lbs. of dynamic force.

    Geotechnical, Environmental, Exploration and Geothermal
    Direct Push & Rotary
    3230DT

    ❯ 3230DT
    Environmental & Geotechnical Drill Rig

    The Geoprobe® 3230DT is ideal for geotechnical and environmental applications. The high-speed drill head easily turns augers, while the automatic drop hammer is equipped for SPT work.

    Geotechnical, Environmental, Exploration and CPT
    Direct Push & Rotary
    7822DT

    ❯ 7822DT
    Environmental & Geotechnical Drill Rig

    The Geoprobe® 7822DT is a high-capacity direct push machine with a narrow platform. Applications include soil sampling, rock coring, groundwater monitoring, geotechnical and more.

    Geotechnical, Environmental, Exploration and CPT
    Direct Push & Rotary
    6712DT

    ❯ 6712DT
    Direct Push Machine

    Modular drilling rig perfect for small- to medium-sized direct push projects. It breaks into three components if necessary for easy transport to remote sites.

    Geotechnical, Environmental, Exploration and CPT
    Geotechnical
    3100GT

    ❯ 3100GT
    Geotechnical Drill Rig

    The Geoprobe® 3100GT Geotechnical Rig is designed to quickly perform SPT borings (augers & mud rotary), collect shelby tube samples, take rock cores, and push CPT cone.

    Geotechnical, Environmental and CPT
    Geotechnical
    150GT

    ❯ 150GT
    Geotechnical Drill Rig

    Specifically designed for customers focused on traditional geotechnical drilling applications utilizing: hollow stem auger, solid stem auger, SPT, mud rotary, air rotary, and high speed coring.

    Geotechnical and Environmental
    CPT
    20 CPT Press Mounted on a Skid Steer

    ❯ 20CPT Press
    Cone Penetration Testing

    This flexible mast option with a 20-ton capacity is specifically designed for performing CPT. It’s versatile too, with a quick mount design that allows the CPT mast to be attached to multiple platforms (skid steer, 6712DT).

    Geotechnical and CPT
    CPT
    2060CPT

    ❯ 2060CPT
    Cone Penetration Testing

    The Geoprobe® 2060CPT is a 20 ton cabin crawler used for Cone Penetration Testing (CPT). It includes many user-friendly controls to make jobs in the field quick, efficient, and comfortable.

    Geotechnical and CPT
    Limited Access
    5410

    ❯ 5410
    Direct Push Machine

    54-in. stroke and 28,900 lb. of pulling capacity for subsurface work. Lateral movement of the unit provides for offset placement of the probe without moving the carrier vehicle.

    Environmental
    Limited Access
    54LT

    ❯ 54LT
    Direct Push Machine

    Rugged, compact probing unit designed for tight spaces and rough terrain. This unit is narrow enough to fit through standard 36-in. doors to get to confined, enclosed places.

    Environmental
    Limited Access
    540MT

    ❯ 540MT
    Direct Push Machine

    Ready for confined spaces and low ceilings with reliable Geoprobe® power. When folded, the unit is less than 29 inches (737 mm) high.

    Environmental
    Limited Access
    420M

    ❯ 420M
    Direct Push Machine

    At 23 in. wide, 62 in. tall (folded), and weighing less than 425 lb., the 420M can be manually lifted and carried to remote sampling locations.

    Environmental
    Water Well
    DM250 Water Well Rig

    ❯ DM250
    Water Well Rig

    The DRILLMAX® DM250 Water Well Rig is the only rig mounted on a truck under CDL requirements that can handle 20-ft. drill pipe. The perfect rig for 2-in. -6-in. shallow water wells.

    Geothermal and Water Well
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