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Video: Geoprobe® 3100GT Features

Simplify Your Geotech Jobs

Drillers praise the 3100GT drilling truck for exceeding their production expectations, and it is now even more proficient with the addition of a percussion hammer. The geotechnical drilling truck under class A/B CDL easily and efficiently switches from continuous sampling with Shelby tubes, to blow counts, to auger drilling without needing to reposition mast or machine to simplify your geotech jobs. Additional advantages of the quiet drilling truck include:

  • Sliding the head to the hands-free automatic drop hammer, or sliding the rotary head into position and engaging the hands-free rotation with a touch of the controls – keeping your driller out of the danger zone
  • Creating stable mud flow with a separate hydraulic circuit dedicated to the mud pump – eliminating the battle between drilling functions and fluid circulation for hydraulic flow and pressure
  • Providing maneuverability and modern amenities in a fuel-sipping, comfortable drilling truck – making it kinder to your bottom –  line – and safer for your new drillers

Veteran drillers especially appreciate the comfort of the drilling truck but also the operating versatility. Training new drillers or launching drilling operations in state agencies and engineering firms is efficient thanks to the easy operation and safety features (beyond just e-stops) of the 3100GT drilling truck, including:

  • Ditch-side control panel putting more distance between traffic and operator
  • Telescoping mast reducing power line collisions
  • Hands-free controls for feed and rotation facilitating rock coring and mud rotary

Features & Options


Video: 3100GT Geotech Rig - Key Features - Doug Koehler

Owners depend on the 3100GT drilling truck to perform jobs efficiently, paramount for successful geotechnical sampling. Profits lie not only in getting footage done quickly and easily, but above all, safely. Quality construction and numerous features and options on the drilling truck provide versatility to outperform the competition.

  • EASY: all six functions along the centerline use machine hydraulics and controls to side-shift without manipulating mast position or mobilizing multiple machines - simply set it and forget it. Controls grouped by function make it easy to move several levers simultaneously. Built-in CPT functionality simplifies cone penetration testing and hands-free controls for feed and rotation reduce operator fatigue during rock coring.
  • EFFECTIVE: versatility to complete an array of sampling techniques – in unconsolidated and consolidated formations - with a single machine without compromise. Separate hydraulic circuit dedicated to mud pump provides stable mud flow.
  • EFFICIENT: fuel-efficient transport averages at 15 mpg and minimizes maintenance expenses supporting only one engine while providing power to travel at highway speeds. Ample storage keeps tools right where you need them near the control panel or on the breakout. And because the drilling truck is under class A/B CDL, save on insurance and streamline hiring of new drillers.

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 drilling truck is constructed consistently and tested thoroughly to ensure easier service support.


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


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


Geotech Head


3100GT drilling truck features centerline head side shift between six functions.

3100GT drilling truck features centerline head side shift between six functions.

Video: Geoprobe® 3100GT - Cone Penetration Testing (CPT)

Six functions along the 26-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


Slide automatic drop hammer into position using control panel on 3126GT drilling truck.

Slide automatic drop hammer into position using control panel on 3126GT drilling truck.

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 and drill mast oscillation on 3100GT drilling truck eases alignment over the hole on geotechnical investigations

Taller telescoping winch mast and drill mast oscillation on 3100GT drilling truck eases alignment over the hole on geotechnical investigations

Video: 3100GT Features - Drill Mast Positioning

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. Outriggers let you quickly set up above the mud pan as well.
 


Winch Options


Dual winches on 3100GT make tool string management easier.

Dual winches on 3100GT make tool string management easier.

Video: 3100GT Features - Telescoping Winch Mast

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. 
 


Control Panel


Digital readouts on display simplify training new drillers on 3100GT drilling truck.

Digital readouts on display simplify training new drillers on 3100GT drilling truck.

Video: 3100GT Features - Control Panel

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 3100GT 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 makes operation easier on the 3100GT drilling truck.

Breakout makes operation easier on the 3100GT drilling truck.

Video: 3100GT Features - Swing Out 7 in Breakout

The 7-inch single breakout firmly grips casing with adjustable clamp force up to 21,000 lbs. 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.
 


Mud Pumps


Mud pump options facilitate tailoring 3100GT to specific geography or job parameters.

Mud pump options facilitate tailoring 3100GT to specific geography or job parameters.

Video: 3100GT Features - Mud Pumps

Pump options for the 3100GT include the Moyno® 3L6 or Moyno® 3L8 pumps. The pump is controlled at the control panel with an on/off switch and the flow can be adjusted with a flow dial.


Tooling Storage


Tool boxes on the 3100GT are another way the drilling truck is set up to improve site housekeeping.

Tool boxes on the 3100GT are another way the drilling truck is set up to improve site housekeeping.

Video: 3100GT Features - Hand Tool Storage

The storage holder connected to the breakout clamp is built for holding the anvil, wrench, and split spoon. The control panel has built-in trays and hooks for small storage.


Ford F600 Option


Geoprobe® 3100GT on a Ford F600

Geoprobe® 3100GT on a Ford F600

Increased Payload Capacity Under CDL

With 22,000 lb GVWR, enjoy creature comforts of the fuel-sipping chassis with additional payload to haul tooling all while remaining under Class A/B CDL.

  • TORQUE: higher torque 6-speed rotary head option adds 70% more torque compared to 4-speed
  • PERCUSSION: GH63 percussion hammer
  • FLEXIBILITY: third winch option with Geoprobe® quick change hook 
  • SPEED: trim time between applications with all head functions and winches along the centerline head side shift, eliminating need to move the drill mast and keeping driller out of harms way
  • SAFE: reduce strain with hands-free auto drop hammer for SPT work and hands-free rotation and feed for rotary work
  • EASY: promote new drillers quickly with easy operation
  • POWER: create stable hydraulic flow for multiple functions simultaneously with a separate mud pump hydraulic circuit 

Higher Torque Rotary Head


GR6.5 rotary head offers 70 percent more torque

GR6.5 rotary head offers 70 percent more torque

The GR6.5 rotary head has 6,800 ft-lbs of torque, which is 2,800 ft-lbs (70 percent) more than the GR4.1 on a typical 7822DT, without sacrificing top-end speed (720 rpm). It also has an additional intermediate-speed range, which further enhances the unit's wet and air rotary capabilities.

Features & Options


Video: 3100GT Geotech Rig - Key Features - Doug Koehler

Owners depend on the 3100GT drilling truck to perform jobs efficiently, paramount for successful geotechnical sampling. Profits lie not only in getting footage done quickly and easily, but above all, safely. Quality construction and numerous features and options on the drilling truck provide versatility to outperform the competition.

  • EASY: all six functions along the centerline use machine hydraulics and controls to side-shift without manipulating mast position or mobilizing multiple machines - simply set it and forget it. Controls grouped by function make it easy to move several levers simultaneously. Built-in CPT functionality simplifies cone penetration testing and hands-free controls for feed and rotation reduce operator fatigue during rock coring.
  • EFFECTIVE: versatility to complete an array of sampling techniques – in unconsolidated and consolidated formations - with a single machine without compromise. Separate hydraulic circuit dedicated to mud pump provides stable mud flow.
  • EFFICIENT: fuel-efficient transport averages at 15 mpg and minimizes maintenance expenses supporting only one engine while providing power to travel at highway speeds. Ample storage keeps tools right where you need them near the control panel or on the breakout. And because the drilling truck is under class A/B CDL, save on insurance and streamline hiring of new drillers.

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 drilling truck is constructed consistently and tested thoroughly to ensure easier service support.


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


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

Six functions along the 26-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.

Video: Geoprobe® 3100GT - Cone Penetration Testing (CPT)

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. Outriggers let you quickly set up above the mud pan as well.
 

Video: 3100GT Features - Drill Mast Positioning

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. 
 

Video: 3100GT Features - Telescoping Winch Mast

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 3100GT reduce strain on driller when completing applications like mud rotary. CPT feed rate and hydraulic limit functions are standard.
 

Video: 3100GT Features - Control Panel

The 7-inch single breakout firmly grips casing with adjustable clamp force up to 21,000 lbs. 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.
 

Video: 3100GT Features - Swing Out 7 in Breakout

Pump options for the 3100GT include the Moyno® 3L6 or Moyno® 3L8 pumps. The pump is controlled at the control panel with an on/off switch and the flow can be adjusted with a flow dial.

Video: 3100GT Features - Mud Pumps

The storage holder connected to the breakout clamp is built for holding the anvil, wrench, and split spoon. The control panel has built-in trays and hooks for small storage.

Video: 3100GT Features - Hand Tool Storage

Increased Payload Capacity Under CDL

With 22,000 lb GVWR, enjoy creature comforts of the fuel-sipping chassis with additional payload to haul tooling all while remaining under Class A/B CDL.

  • TORQUE: higher torque 6-speed rotary head option adds 70% more torque compared to 4-speed
  • PERCUSSION: GH63 percussion hammer
  • FLEXIBILITY: third winch option with Geoprobe® quick change hook 
  • SPEED: trim time between applications with all head functions and winches along the centerline head side shift, eliminating need to move the drill mast and keeping driller out of harms way
  • SAFE: reduce strain with hands-free auto drop hammer for SPT work and hands-free rotation and feed for rotary work
  • EASY: promote new drillers quickly with easy operation
  • POWER: create stable hydraulic flow for multiple functions simultaneously with a separate mud pump hydraulic circuit 

The GR6.5 rotary head has 6,800 ft-lbs of torque, which is 2,800 ft-lbs (70 percent) more than the GR4.1 on a typical 7822DT, without sacrificing top-end speed (720 rpm). It also has an additional intermediate-speed range, which further enhances the unit's wet and air rotary capabilities.

“We’ve actually gained production level. It drills just as many holes as the conventional rig we were used to, but it does better in many ways. We can get in and out quicker, do a better job, and leave less mess, which means the more money we can make. And we’re only putting one rig on a job versus pulling another rig, which means more profit.” 

- Shauna Clark, Operations Manager, MLA Geotechnical, Texas

Tooling & Accessories

Augering with the 7822DT

Video: Geoprobe® 3100GT - SPT through 3.25 HSA to 25 ft.

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

Video: Geoprobe® 3.75-inch Tooling System

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 for a rig quote.

Schedule A Visit

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Applications


3100GT completes geotechnical investigations with ease thanks to centerline head side shift

Geotechnical

Ability to quickly slide between functions with centerline head side shift without needing a class A/B CDL to mobilize makes the 3100GT drilling truck an advantage for geotech investigations.

3100GT environmental investigations made simple by sliding between functions

Environmental

Easily expand your scope of work quickly sliding from rotary to percussion using the 3100GT drilling truck for environmental investigations.

3100GT completes CPT with option for augering

CPT

Quick addition of anchors and use of automatic head feed control makes conducting CPT simple while still allowing for option of auger drilling.

Specs

Specifications are subject to change without notice.

Overall Dimensions   Overall Dimensions  
Width (in) 98.5 Width (mm) 2502
Length (transport) (in) 275 Length (transport) (mm) 6985
Length (deployed, lateral fully extended) (in) 319 Length (deployed, lateral fully retracted) (mm) 8103
Height (normal transport) (in) 120 Height (normal transport) (mm) 3048
Height (deployed; winch mast up) (in) 277 Height (deployed; winch mast up) (mm) 7036
Height (deployed; winch mast up) (ft) 23.1 Height (deployed; winch mast up) (m) 7.04
Base Unit Weight (lbs)   Base Unit Weight (kg) 0
Unit Weight (w/ typical options) lbs 18,200 Unit Weight (w/ typical options) kg 8,255
Drill Mast Positioning   Drill Mast Positioning  
Extension (fore and aft) (in) 15 Extension (fore and aft) (mm) 381
Lateral (side to side) (± degrees) 4 Lateral (side to side) (± degrees) 4
Oscillation (degrees from vertical) 10 Oscillation (degrees from vertical) 10
Drill Mast Dump (in) 45 Drill Mast Dump (mm) 1143
Toe Rigger travel (in) 16 Front outrigger travel (mm) 406
Drill Mast Specifications   Drill Mast Specifications  
Head Travel (in) 105 Head Travel (mm) 2667
Head Travel (ft) 8.8 Head Travel (m) 2.67
Head Crowd Force (lbs) 36,000 Head Crowd Force (kN) 160
Head Pull Force (lbs) 48,000 Head Pull Force (kN) 214
Head Feed Carriage Comp. Slides Head Feed Carriage Comp. Slides
Head Feed Pressure Control (w.o.b) NA Head Feed Pressure Control (w.o.b) NA
Head Sideshift (in) 28 Head Sideshift (mm) 711
Prime Mover & Hydraulic Specs   Prime Mover & Hydraulic Specs  
Truck Dodge RAM 5500 4x4 Truck Dodge RAM 5500 4x4
Engine 6.7L I6 Cummins® Turbo Diesel Engine Engine 6.7L I6 Cummins® Turbo Diesel Engine
Engine Rated Power (hp) N/A Engine Rated Power (kW) N/A
Fuel Capacity (gal) 52 Fuel Capacity (L) 197
Pump type Axial Piston - HP limited Pump type Axial Piston - HP limited
  Max pressure (psi) 4,000   Max pressure (bar) 276
  Max flow (gpm) 47   Max flow (L/min) 178
Additional Pump (Mud Pump Circuit) (gpm) 16 Additional Pump (Mud Pump Circuit) (L/min) 61
Direct Push Hammer   Direct Push Hammer Options  
  GH6400   GH6400
Rotary Drive Options   Rotary Drive Options  
2-Speed Rotary Drive GA4000 2-Speed Rotary Drive GA4000
  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 Drive GA4100 4-Speed Rotary Drive GA4100
  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   Primary Winch  
line pull (lbf) 6800 line pull (kN) 30.25
line speed (fpm) 130 line speed (m/min) 40
cable length (ft) 75 cable length (m) 23
Second Winch   Secondary Winch  
line pull (lbf) 1800 line pull (kN) 8.01
line speed (fpm) 125 line speed (m/min) 38
cable length (ft) 175 cable length (m) 53
Breakout   Breakout  
Single Clamp   Single 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

Specs

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

Overall Dimensions   Overall Dimensions  
Width (in) 98.5 Width (mm) 2502
Length (transport) (in) 275 Length (transport) (mm) 6985
Length (deployed, lateral fully extended) (in) 319 Length (deployed, lateral fully retracted) (mm) 8103
Height (normal transport) (in) 120 Height (normal transport) (mm) 3048
Height (deployed; winch mast up) (in) 277 Height (deployed; winch mast up) (mm) 7036
Height (deployed; winch mast up) (ft) 23.1 Height (deployed; winch mast up) (m) 7.04
Base Unit Weight (lbs)   Base Unit Weight (kg) 0
Unit Weight (w/ typical options) lbs 18,200 Unit Weight (w/ typical options) kg 8,255
Drill Mast Positioning   Drill Mast Positioning  
Extension (fore and aft) (in) 15 Extension (fore and aft) (mm) 381
Lateral (side to side) (± degrees) 4 Lateral (side to side) (± degrees) 4
Oscillation (degrees from vertical) 10 Oscillation (degrees from vertical) 10
Drill Mast Dump (in) 45 Drill Mast Dump (mm) 1143
Toe Rigger travel (in) 16 Front outrigger travel (mm) 406
Drill Mast Specifications   Drill Mast Specifications  
Head Travel (in) 105 Head Travel (mm) 2667
Head Travel (ft) 8.8 Head Travel (m) 2.67
Head Crowd Force (lbs) 36,000 Head Crowd Force (kN) 160
Head Pull Force (lbs) 48,000 Head Pull Force (kN) 214
Head Feed Carriage Comp. Slides Head Feed Carriage Comp. Slides
Head Feed Pressure Control (w.o.b) NA Head Feed Pressure Control (w.o.b) NA
Head Sideshift (in) 28 Head Sideshift (mm) 711
Prime Mover & Hydraulic Specs   Prime Mover & Hydraulic Specs  
Truck Dodge RAM 5500 4x4 Truck Dodge RAM 5500 4x4
Engine 6.7L I6 Cummins® Turbo Diesel Engine Engine 6.7L I6 Cummins® Turbo Diesel Engine
Engine Rated Power (hp) N/A Engine Rated Power (kW) N/A
Fuel Capacity (gal) 52 Fuel Capacity (L) 197
Pump type Axial Piston - HP limited Pump type Axial Piston - HP limited
  Max pressure (psi) 4,000   Max pressure (bar) 276
  Max flow (gpm) 47   Max flow (L/min) 178
Additional Pump (Mud Pump Circuit) (gpm) 16 Additional Pump (Mud Pump Circuit) (L/min) 61
Direct Push Hammer   Direct Push Hammer Options  
  GH6400   GH6400
Rotary Drive Options   Rotary Drive Options  
2-Speed Rotary Drive GA4000 2-Speed Rotary Drive GA4000
  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 Drive GA4100 4-Speed Rotary Drive GA4100
  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   Primary Winch  
line pull (lbf) 6800 line pull (kN) 30.25
line speed (fpm) 130 line speed (m/min) 40
cable length (ft) 75 cable length (m) 23
Second Winch   Secondary Winch  
line pull (lbf) 1800 line pull (kN) 8.01
line speed (fpm) 125 line speed (m/min) 38
cable length (ft) 175 cable length (m) 53
Breakout   Breakout  
Single Clamp   Single 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.

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

Increased payload capacity drill truck offers torque, percussion, and speed while remaining under class A/B CDL

ID: 5770 | Date: 2021-05-14

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.