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Video: Geoprobe® 3126GT Mud Rotary Drilling

Drill More. Make More.

Drillers seeking to position for increased productivity and profit choose the NEW 3126GT geotechnical drill with its innovative centerline head side shift and separate hydraulic circuit for mud pump. Engineered for efficiency in a small footprint on wide tracks, the compact geotechnical drill nimbly navigates off-road without sacrificing power or versatility. The end result – faster, easier, and safer drilling.

  • trim time between applications with six functions along the centerline head side shift
  • reduce strain of rotary work with hands-free rotation and feed
  • maximize production and rig utilization with power and versatility

Advance augers with the 2 or 4-speed rotary head. Then use the geotechnical drill hydraulics to slide the head over to position the hands-free automatic drop hammer for driving SPT samples between core runs. Or use the geotechnical drill controls to slide the head the other way to conduct CPT logging using the integrated CPT head-feed rate controls complete with cone overload protection. Or use the integrated GH63 direct push hammer for fast and easy direct push soil and water sampling in unconsolidated formations — with your feet safely on the ground. No moving drill mast or machine.


Features & Options


Video: Geoprobe® 3126GT Head Side-Shift

Owners praise their Geoprobe® 3126GT geotechnical drill for its simplicity and safety so new drillers quickly travel the learning curve. Veteran drillers appreciate the attention to features addressing their field needs. Together all the standard features and available options minimize operating costs and come in at a price point lower than you might anticipate.

  • ENGINEERED FOR EFFICIENCY: with six functions along the centerline, use machine hydraulics and controls to side-shift the head, simplifying your geotech applications. Complete augering, mud rotary, SPT, Shelby tubes, hard rock cores, CPT ­— even direct push  ­— without manipulating mast position or mobilizing multiple machines.
  • ENHANCED EASE AND SAFETY: boost geotechnical drill output and utilization with hands-free automatic drop hammer and integrated CPT head-feed rate control, including cone overload protection. Leverage small footprint to expand site access without sacrificing flow from mud pump or accessory storage. Bring new drillers up the learning curve quickly with easy controls and integrated safety features built to internationally-accepted standards.
  • ELEVATED SERVICE AND SUPPORT: respond to your clients needs, making a quick call to get answers to your field and geotechnical drill service questions with overnight part shipping available from industry-leading support team.

With drill rig service shops in Pennsylvania, Florida, and Kansas, you’ll have service support nearby for your routine maintenance or more in-depth drill rig remounting and refurbishment work. Our service technicians are backed by our team of engineers to ensure solutions not bandaids to issues. And our production processes mean your geotechnical drill is constructed consistently and tested thoroughly to ensure easier service support.


Don't see a feature you're looking for on your new geotechnical drill?  Give us a call.


Our team of engineers thrives on collaborating with drillers while they continually innovate new designs.
 


Geotech Head


Six functions, including winches, along centerline with head side shift

Six functions, including winches, along centerline with head side shift

Six functions along the 28-inch centerline head side shift simplify traditional geotechnical applications — augering, mud rotary, SPT, Shelby tubes, hard rock cores, CPT – and even direct push. Features GH63 percussion hammer 4-speed rotary head with 4,000 ft-lb, DH104 hands-free automatic drop hammer, CPT push/pull assembly, and a rod grip pull system. Head shifting speeds up drilling and minimizes the time driller spends in danger zone.


Hands-free Automatic Drop Hammer


Automatic drop hammer on 3126GT geotechnical drill includes a measuring marker

Automatic drop hammer on 3126GT geotechnical drill includes a measuring marker

With 170-lb, 300-lb, or 340-lb options, the hands-free automatic drop hammer reduces strain when driving SPT samples. Advance borings for SPT testing by augering, driven casing and sampling, or wash boring.


Telescoping Winch Mast/Drill Mast Oscillation


Taller telescoping winch mast on 3126GT specifically designed for geotech work

Taller telescoping winch mast on 3126GT specifically designed for geotech work

The winch mast telescopes into place, allowing for flexible height options based on work environment. This also adds a layer of safety during setup when working near overhead power lines or other obstacles. 

Taller telescoping winch mast specifically designed for geotech work with heavier winch options, 105-inches head travel, and 36,000-lbf push and 48,000-lbf pull at the head-feed cylinder means greater pull back – ideal for drive and wash – and head travel. Allows tripping out of 20-foot lengths of rod when combined with 3-foot extension. 

Align the probe cylinder and tool string on a straight – or angled – path to the subsurface while the machine remains stable with the built-in oscillation, standard on all machines. 

Drill mast features extend, swing, mast dump, oscillation, and fold. Mast dump provides 36.5 inches of vertical travel to allow room for a mud pan. Optional outriggers available.
 


Winch Options


Dual winches typically configured with 6,000-lbf and 1,800-lbf

Dual winches typically configured with 6,000-lbf and 1,800-lbf

A dual winch option is typically configured with a 6,800-lbf winch for the more difficult pulling and an 1,800-lbf. with quick-change hook. 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.

Additional winch options include 2,500-lbf and 1,100-lbf. 

Also available is a third winch with 1,100 lbs of line pull, well suited to trip additional tooling out of the hole. Equipped with the Geoprobe® exclusive quick change hook, operators can switch over to wireline coring in seconds. 


Higher Torque Rotary Head


GR6.5 Rotary Head provides 70 percent more torque

GR6.5 Rotary Head provides 70 percent more torque

While customers are proving the rock coring capabilities of the 4-speed rotary head on the 3126GT, some customers have requested more bottom-end torque for their geotech jobs. True to form, Geoprobe® responded by designing the 6-speed GR6.5 rotary head with 70 percent more torque.

"The GR6.5 has 6,800 ft-lbs of torque, which is 2,800 ft-lbs more than the GR4.1 on a typical 7822DT, without sacrificing top-end speed (720 rpm)," Ryan Kejr, machine engineer lead, said. "We also added an additional intermediate-speed range, which further enhances the unit's wet and air rotary capabilities."


Control Panel


Controls include hands-free rotary and head feed

Controls include hands-free rotary and head feed

All functions are at your fingertips in a well-organized, compact control panel. The systems display 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.

Hands-free rotary and head feed controls on the 3126GT reduce strain on driller when completing applications like mud rotary. CPT feed rate and hydraulic limit functions are standard.
 


7-inch Single Clamp Breakout


Breakout on 3126GT geotechnical drill has a clamp force of up to 21,000 pounds of force

Breakout on 3126GT geotechnical drill has a clamp force of up to 21,000 pounds of force

The 7-inch single breakout firmly grips casing with a clamp force of up to 21,000 pounds of force. The breakout can be positioned either under the hammer or the rotary drive, as well as swung away from the machine.

An optional Coring Upgrade Kit (217024) is also available to firmly grip thin-walled 2.75-inch OD casing without damage to the casing. The kit includes formed jaw pads and a circle wrench with carbide inserts.
 


Tooling Transportation/Storage


Toolboxes help with site housekeeping while rear blade on 3126GT geotechnical drill easily transports tooling drop rack

Toolboxes help with site housekeeping while rear blade on 3126GT geotechnical drill easily transports tooling drop rack

The rear blade can be used for tool transport. During site setup, a tooling drop rack can be placed in front of the machine for easy access. This eliminates the need to walk around the machine for tooling, which saves time and conserves energy in the field. 

Ample, well-spaced storage includes two stacked tool boxes, helper-side storage compartments, and control panel storage bin/trays.


Folding Winch Mast Option


Folding winch mast lowers transportation height by 15 inches

Folding winch mast lowers transportation height by 15 inches

The folding winch mast option for the 3126GT is designed for customers who prefer to haul their rig in an enclosed trailer or truck, lowering the transportation height by 15 inches.

"This reduces the transport height of the 3126GT from 114 inches to 99 inches," Ryan Kejr, machine engineer lead, said. "We accomplish this with a simple, mechanical ratcheting actuator. This is easily accessible from the ground when the drill mast is in transport position."
 

Features & Options


Video: Geoprobe® 3126GT Head Side-Shift

Owners praise their Geoprobe® 3126GT geotechnical drill for its simplicity and safety so new drillers quickly travel the learning curve. Veteran drillers appreciate the attention to features addressing their field needs. Together all the standard features and available options minimize operating costs and come in at a price point lower than you might anticipate.

  • ENGINEERED FOR EFFICIENCY: with six functions along the centerline, use machine hydraulics and controls to side-shift the head, simplifying your geotech applications. Complete augering, mud rotary, SPT, Shelby tubes, hard rock cores, CPT ­— even direct push  ­— without manipulating mast position or mobilizing multiple machines.
  • ENHANCED EASE AND SAFETY: boost geotechnical drill output and utilization with hands-free automatic drop hammer and integrated CPT head-feed rate control, including cone overload protection. Leverage small footprint to expand site access without sacrificing flow from mud pump or accessory storage. Bring new drillers up the learning curve quickly with easy controls and integrated safety features built to internationally-accepted standards.
  • ELEVATED SERVICE AND SUPPORT: respond to your clients needs, making a quick call to get answers to your field and geotechnical drill service questions with overnight part shipping available from industry-leading support team.

With drill rig service shops in Pennsylvania, Florida, and Kansas, you’ll have service support nearby for your routine maintenance or more in-depth drill rig remounting and refurbishment work. Our service technicians are backed by our team of engineers to ensure solutions not bandaids to issues. And our production processes mean your geotechnical drill is constructed consistently and tested thoroughly to ensure easier service support.


Don't see a feature you're looking for on your new geotechnical drill?  Give us a call.


Our team of engineers thrives on collaborating with drillers while they continually innovate new designs.
 

Six functions along the 28-inch centerline head side shift simplify traditional geotechnical applications — augering, mud rotary, SPT, Shelby tubes, hard rock cores, CPT – and even direct push. Features GH63 percussion hammer 4-speed rotary head with 4,000 ft-lb, DH104 hands-free automatic drop hammer, CPT push/pull assembly, and a rod grip pull system. Head shifting speeds up drilling and minimizes the time driller spends in danger zone.

With 170-lb, 300-lb, or 340-lb options, the hands-free automatic drop hammer reduces strain when driving SPT samples. Advance borings for SPT testing by augering, driven casing and sampling, or wash boring.

The winch mast telescopes into place, allowing for flexible height options based on work environment. This also adds a layer of safety during setup when working near overhead power lines or other obstacles. 

Taller telescoping winch mast specifically designed for geotech work with heavier winch options, 105-inches head travel, and 36,000-lbf push and 48,000-lbf pull at the head-feed cylinder means greater pull back – ideal for drive and wash – and head travel. Allows tripping out of 20-foot lengths of rod when combined with 3-foot extension. 

Align the probe cylinder and tool string on a straight – or angled – path to the subsurface while the machine remains stable with the built-in oscillation, standard on all machines. 

Drill mast features extend, swing, mast dump, oscillation, and fold. Mast dump provides 36.5 inches of vertical travel to allow room for a mud pan. Optional outriggers available.
 

A dual winch option is typically configured with a 6,800-lbf winch for the more difficult pulling and an 1,800-lbf. with quick-change hook. 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.

Additional winch options include 2,500-lbf and 1,100-lbf. 

Also available is a third winch with 1,100 lbs of line pull, well suited to trip additional tooling out of the hole. Equipped with the Geoprobe® exclusive quick change hook, operators can switch over to wireline coring in seconds. 

While customers are proving the rock coring capabilities of the 4-speed rotary head on the 3126GT, some customers have requested more bottom-end torque for their geotech jobs. True to form, Geoprobe® responded by designing the 6-speed GR6.5 rotary head with 70 percent more torque.

"The GR6.5 has 6,800 ft-lbs of torque, which is 2,800 ft-lbs more than the GR4.1 on a typical 7822DT, without sacrificing top-end speed (720 rpm)," Ryan Kejr, machine engineer lead, said. "We also added an additional intermediate-speed range, which further enhances the unit's wet and air rotary capabilities."

All functions are at your fingertips in a well-organized, compact control panel. The systems display 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.

Hands-free rotary and head feed controls on the 3126GT reduce strain on driller when completing applications like mud rotary. CPT feed rate and hydraulic limit functions are standard.
 

The 7-inch single breakout firmly grips casing with a clamp force of up to 21,000 pounds of force. The breakout can be positioned either under the hammer or the rotary drive, as well as swung away from the machine.

An optional Coring Upgrade Kit (217024) is also available to firmly grip thin-walled 2.75-inch OD casing without damage to the casing. The kit includes formed jaw pads and a circle wrench with carbide inserts.
 

The rear blade can be used for tool transport. During site setup, a tooling drop rack can be placed in front of the machine for easy access. This eliminates the need to walk around the machine for tooling, which saves time and conserves energy in the field. 

Ample, well-spaced storage includes two stacked tool boxes, helper-side storage compartments, and control panel storage bin/trays.

The folding winch mast option for the 3126GT is designed for customers who prefer to haul their rig in an enclosed trailer or truck, lowering the transportation height by 15 inches.

"This reduces the transport height of the 3126GT from 114 inches to 99 inches," Ryan Kejr, machine engineer lead, said. "We accomplish this with a simple, mechanical ratcheting actuator. This is easily accessible from the ground when the drill mast is in transport position."
 

The rig has a lot of push/pull capacity but also a lot of control. The hydraulic lever handles we're used to versus the display and ability to tune controls on the 3126GT control panel is way, way ahead of other drilling rigs. How Geoprobe® worked out the operating system impressed me more than anything. They took care of all the little details to make things easier in the field.

- Dave Harness, Project Manager, Alt & Witzig Engineering, Indiana

Tooling & Accessories

Augering with the 7822DT

Hollow Stem Augers (HSA) are commonly used to set groundwater monitoring wells for environmental and for geotechnical SPT applications. With the option of an augerhead on Geoprobe® machines you can turn hollow stem augers with the same machine you had just been using for percussion probing.

Interlocking Split Spoon Sampler

Video: Interlocking Split Spoon Overview

Engineered to be stronger, last longer, and save money and time, the patented interlocking split spoon meets ASTM Standard D1586. The finger-like design self aligns, creating a perfect fit and quicker assembly. With the threads aligned, the cutting shoe and drive head can be threaded to the split spoon. Multi-lead threads require fewer turns during assembly and disassembly over conventional split spoons, speeding up each test interval. In additional to time savings, enhanced material properties and manufacturing result in greater longevity. 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.

Spring Assisted Swivel Lift Cap

Video: Geoprobe® Spring Assisted Swivel Lift Cap

The Spring Assisted Swivel Lift 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.

MC5 Core Sampler Soil Sampling System (LWCR)

Video: Geoprobe® 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-inch 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!” Macro-Core® is a registered trademark of Kejr, Inc., Salina, KS.

DT22 Soil Sampling System

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- inch 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-inch OD light-weight center rods and are inserted to the bottom of the outer casing.

3.75 in. Tooling

The DT37 Soil Sampling System, designed for use with 3.75-inch 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 DT37 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.

SP22 Groundwater Sampler

Video: SP22-ISP Groundwater Sampler

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-inch Lightweight Center Rods or PVC riser. Designed for tough probing conditions, the screen head on the fully retrievable sampler adapts to either a stainless steel or PVC screen.

Explore Your Options

Call Us at (785) 825-1842 for an in-person demo.

Request A Quote

Call Us at (785) 825-1842 to request a rig quote.

Schedule A Visit

Call Us at (785) 825-1842 to visit headquarters.

Applications


3126GT geotechnical drill reduces transition time between functions

Geotechnical

Simplify your geotech augering, mud rotary, SPT, Shelby tubes, hard rock cores, and CPT with six functions along the centerline head side shift of the 3126GT

Versatility of 3126GT geotechnical drill for environmental investigations

Environmental

Spinning hollow stem augers prepping to install a monitoring well for an environmental investigation made easier with the centerline head side shift on the 3126GT

CPT head-feed rate control, including cone overload protection, simplifies CPT testing with 3126GT geotechnical drill.

CPT

Efficiently complete CPT testing with integrated CPT head-feed rate control, including cone overload protection, on the 3126GT geotechnical drill.

Specs

Specifications are subject to change without notice.

  Standard   Metric  
Overall Dimensions units   units  
Width in 80 mm 2032
Length (transport) in 214 mm 5436
Length (deployed, lateral fully extended) in 175 mm 4445
Height (normal transport) in 114 mm 2896
Height (transport -- folding winch mast option) in 99 mm 2515
Height (deployed; winch mast up) in 277 mm 7036
Approach/departure angle in transport degrees   degrees  
Base Unit Weight lbs TBD kg TBD
Unit Weight (w/ typical options) lbs 12600 kg 5715
Ground Speed mph 2.5 kmh 4.0
Estimated Track Surface Area in2 1958.0    
Estimated Ground Pressure (base unit) psi   bar  
Estimated Ground Pressure (w/ typical options) psi 6.4 bar 0.4
         
Drill Mast Positioning        
Extension (fore and aft) in 15 mm 381
Lateral (side to side) ± degrees 10 ± degrees 10
Oscillation degrees 10 degrees 10
Drill Mast Dump in 36.5 mm 927
Drill end outrigger travel in 16 mm 406
Rear stabilizer travel (Engine end) in 26 mm 660
Rear stabilizer width in 60 mm 1524
Rear stabilizer lift lbs 2000 kN 2000
Max angle drilling ability off vertical degrees   degrees  
         
Drill Mast Specifications        
Head Travel in 105 mm 2667
Head Crowd Force lbs 36,000 kN 160
Head Pull Force lbs 48,000 kN 214
Head Feed Rate Down fpm 27.1 m/min 8.25
Head Feed Rate Up (regen) fpm 71.9 m/min 21.92
Head Feed Rate Up (non-regen) fpm 24.2 m/min 7.37
Head Feed Carriage   Comp. slides   Comp. slides
Head Feed Pressure Control   Optional   Optional
Head Rate Control   Standard   Standard
Head Sideshift in 28 mm 711
         
Prime Mover & Hydraulic Specs        
Engine   Kubota V2403 T4/Stage V   Kubota V2403 T4/Stage V
Engine Rated Power hp 65 kW 48
Fuel Capacity gal 17 L 64
Pump type type Axial Piston -LS/HP Limited type Axial Piston -LS/HP Limited
Max pressure psi 4,000 bar 276
Max flow gpm 40 L/min 151
Additional Pump Pump Hydrostat (mud pump) Pump Hydrostat (mud pump)
Max pressure psi 4000 bar 276
Max flow gpm 18 L/min 68
Direct Push Hammer        
    GH6400   GH6400
         
Rotary Drive Options        
    GR4.1   GR4.1
Type   2 Spd Hyd+2 Spd Mech   2 Spd Hyd+2 Spd Mech
Range 1 Torque ft-lbs 4000 N-m 5423
Highest Range Speed rpm 750 rpm 750
Swivel Type   Side   Side
    GR6.5   GR6.5
Type   3 Spd Hyd+2 Spd Mech   3 Spd Hyd+2 Spd Mech
Range 1 Torque ft-lbs 6800 N-m 9220
Highest Range Speed rpm 720 rpm 720
Swivel Type   Side   Side
         
Standard Winch (Position 1)        
line pull lbf 6800 kN 30.25
line speed fpm 130 m/min 39.6
cable length ft 75 m 22.9
         
Second Winch (Position 2)        
line pull lbf 2500 kN 11.12
line speed fpm 125 m/min 38.1
cable length ft 100 m 30.5
         
line pull lbf 1800 kN 8.01
line speed fpm 125 m/min 38.1
cable length ft 175 m 53.4
         
line pull lbf 1100 kN 4.89
line speed fpm 230 m/min 70.1
cable length ft 250 m 76.3
         
Third Winch (Position 3)        
line pull lbf 1100 kN 4.89
line speed fpm 230 m/min 70.1
cable length ft 250 m 76.3
         
Auto Drop Hammer        
Drop height in 30 mm 762
Float in 31 mm 787
         
Breakout        
Single Clamp        
Max Clamp force lbf 21,000 kN 93
Breakout torque ft-lb 6,000 N-m 8135
Min Casing size compatible in 1.25 mm 31.75
Max Casing size compatible in 6 mm 152.4
Vertical travel in NA mm NA
         
Mud Pump Options        
    2L4   2L4
    3L6   3L6
    SPX40   SPX40
    Triplex   Triplex
 

Specs

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

  Standard   Metric  
Overall Dimensions units   units  
Width in 80 mm 2032
Length (transport) in 214 mm 5436
Length (deployed, lateral fully extended) in 175 mm 4445
Height (normal transport) in 114 mm 2896
Height (transport -- folding winch mast option) in 99 mm 2515
Height (deployed; winch mast up) in 277 mm 7036
Approach/departure angle in transport degrees   degrees  
Base Unit Weight lbs TBD kg TBD
Unit Weight (w/ typical options) lbs 12600 kg 5715
Ground Speed mph 2.5 kmh 4.0
Estimated Track Surface Area in2 1958.0    
Estimated Ground Pressure (base unit) psi   bar  
Estimated Ground Pressure (w/ typical options) psi 6.4 bar 0.4
         
Drill Mast Positioning        
Extension (fore and aft) in 15 mm 381
Lateral (side to side) ± degrees 10 ± degrees 10
Oscillation degrees 10 degrees 10
Drill Mast Dump in 36.5 mm 927
Drill end outrigger travel in 16 mm 406
Rear stabilizer travel (Engine end) in 26 mm 660
Rear stabilizer width in 60 mm 1524
Rear stabilizer lift lbs 2000 kN 2000
Max angle drilling ability off vertical degrees   degrees  
         
Drill Mast Specifications        
Head Travel in 105 mm 2667
Head Crowd Force lbs 36,000 kN 160
Head Pull Force lbs 48,000 kN 214
Head Feed Rate Down fpm 27.1 m/min 8.25
Head Feed Rate Up (regen) fpm 71.9 m/min 21.92
Head Feed Rate Up (non-regen) fpm 24.2 m/min 7.37
Head Feed Carriage   Comp. slides   Comp. slides
Head Feed Pressure Control   Optional   Optional
Head Rate Control   Standard   Standard
Head Sideshift in 28 mm 711
         
Prime Mover & Hydraulic Specs        
Engine   Kubota V2403 T4/Stage V   Kubota V2403 T4/Stage V
Engine Rated Power hp 65 kW 48
Fuel Capacity gal 17 L 64
Pump type type Axial Piston -LS/HP Limited type Axial Piston -LS/HP Limited
Max pressure psi 4,000 bar 276
Max flow gpm 40 L/min 151
Additional Pump Pump Hydrostat (mud pump) Pump Hydrostat (mud pump)
Max pressure psi 4000 bar 276
Max flow gpm 18 L/min 68
Direct Push Hammer        
    GH6400   GH6400
         
Rotary Drive Options        
    GR4.1   GR4.1
Type   2 Spd Hyd+2 Spd Mech   2 Spd Hyd+2 Spd Mech
Range 1 Torque ft-lbs 4000 N-m 5423
Highest Range Speed rpm 750 rpm 750
Swivel Type   Side   Side
    GR6.5   GR6.5
Type   3 Spd Hyd+2 Spd Mech   3 Spd Hyd+2 Spd Mech
Range 1 Torque ft-lbs 6800 N-m 9220
Highest Range Speed rpm 720 rpm 720
Swivel Type   Side   Side
         
Standard Winch (Position 1)        
line pull lbf 6800 kN 30.25
line speed fpm 130 m/min 39.6
cable length ft 75 m 22.9
         
Second Winch (Position 2)        
line pull lbf 2500 kN 11.12
line speed fpm 125 m/min 38.1
cable length ft 100 m 30.5
         
line pull lbf 1800 kN 8.01
line speed fpm 125 m/min 38.1
cable length ft 175 m 53.4
         
line pull lbf 1100 kN 4.89
line speed fpm 230 m/min 70.1
cable length ft 250 m 76.3
         
Third Winch (Position 3)        
line pull lbf 1100 kN 4.89
line speed fpm 230 m/min 70.1
cable length ft 250 m 76.3
         
Auto Drop Hammer        
Drop height in 30 mm 762
Float in 31 mm 787
         
Breakout        
Single Clamp        
Max Clamp force lbf 21,000 kN 93
Breakout torque ft-lb 6,000 N-m 8135
Min Casing size compatible in 1.25 mm 31.75
Max Casing size compatible in 6 mm 152.4
Vertical travel in NA mm NA
         
Mud Pump Options        
    2L4   2L4
    3L6   3L6
    SPX40   SPX40
    Triplex   Triplex
 

Resources

Click on a section below to view information.

Positioned as the next generation of combination rigs, owners of 3100GT truck mounted rig and 3126GT track mounted rig describe the advantages as new machine options are revealed.

ID: 5929 | Date: 2021-07-06

Our collective team continues to work together to live out our company STATEMENT OF OBJECTIVES that were penned by our founders in 1987.

ID: 5786 | Date: 2021-05-14

Improved mud pans and tooling racks streamline mud rotary job site housekeeping.

ID: 5739 | Date: 2021-05-10

Increased diversity and ability than a conventional rig, the 3100 series machines decrease time adjusting alignment which means increased time drilling with the power to pull steel out of tight conditions.

ID: 5737 | Date: 2021-05-10

Higher torque head, third winch option, and lower transportation height among new options on 3100 series machines.

ID: 5736 | Date: 2021-05-10

Depend on Team Geoprobe®

Since 1987, Geoprobe® has manufactured innovative drilling rigs and tooling - engineered for efficiency and safety - simplifying drillers’ jobs and empowering their companies to succeed as productive and profitable leaders in the industry. When you partner with Geoprobe® you receive:

Customer-inspired Innovation

Engineering and building industry-leading drilling rigs, tooling, and techniques for the technical driller based on your needs to work safer and more efficiently.

Exceptional Value

Ensuring drilling rigs and tooling are created in conjunction – with consistent quality – to collect the highest-quality information with the most accurate result to get you to, into, and through the job efficiently.

Superior Service

Equipping you to do your best job and keeping you in the field via one-on-one expert sales and service technicians manning live support phone lines, shipping necessary parts same-day.