Compaction Grouting & Rotary Drill Rig

Our CGR-138 is a mini drill rig designed for the compaction grouting contractor. It features a 38hp tier 4 compliant, turbo diesel engine with a 22 gpm hydraulic power unit.

This soil compaction drilling rig comes with a 4 speed gearbox drill head with incorporated heavy duty wet swivel.

The CGR-138 is designed to be extremely mobile for tight spaces and it has been known to drill 800+ feet of casing per working day.

Request a quote

Request a quote

A valid Full Name is required.
A valid E-mail address is required.

By submitting this form you hereby authorize TMG Manufacturing, to send you periodic emails.
Email information is not shared with anyone else outside of TMG Manufacturing.

Download the brochure



  • 38 hp (28.35 kW), Kohler tier 4 compliant, turbo charged diesel engine
  • Water cooled
  • 1.563 liter displacement (1560 cc)
  • Radiator cooling system
  • 12 V electric start
  • 3000 rpm
  • Direct injection
  • Emergency stop button
  • Rpm gauge
  • Oil pressure gauge
  • Oil level light

Hydraulic System

  • Hawe hydraulics power unit
  • 22 gpm (83 lpm) max combined hydraulic flow
  • Max 3000 psi (206 bar)
  • Load sensing variable displacement axial piston pump
  • Feather touch controls
  • Oil cooler
  • In-tank oil filter

Track System

  • Stationary track system (260 mm wide 1676 mm long - 10.2” wide 66” long)
  • NACHI 2B track motor with automatic brake system
  • Built-in grease filled tensioning arm and spring


  • Chain driven mast
  • V-Rollers
  • Tilt for travel
  • Standard mast 5 ft (1.5 m) stroke

Pipe Clamp

  • Single pipe/rod bottom clamp
  • Size capability from 1.5” to 6” (Other sizes available)

Mud Pump

  • Moyno 3L6 (or equivalent) continuous flow stator / rotor style mud pump
  • Up to 225 psi (15.5 bar)
  • 50 gpm flow (189 lpm)
  • Independent hydraulic motor
  • Quick coupling
  • Mounted on drill rig frame

Leveling Outriggers

  • 4 hydraulic level outriggers with independent controls

Drill Motor - Rotary Gearbox MS-250

  • Gear 1: 735 rpm at 275 ft lbs (372 Nm) torque
  • Gear 2: 367 rpm at 551 ft lbs (747 Nm) torque
  • Gear 3: 184 rpm at 1101 ft lbs (1492 Nm) torque
  • Gear 4: 92 rpm at 2203 ft lbs (2986 Nm) torque
  • Built in heavy duty wet swivel (see bellow)

Heavy Duty Wet Swivel

  • Top intake
  • 18,000 lbs (8,160 kg) load capacity
  • Quick change connectors (AWJ, AW, BW, BWL, NW, NWL, HW, HWL, PW, PWL) others available
  • Automatic spring floating system

Fuel Tank

  • 6 gallon (22.7 liters) fuel tank with fuel sending sensor

Hydraulic Oil Tank

  • 10 gallon (37.8 liters) hydraulic oil tank with built-in site level glass

Depth Capacity

  • 150-250 feet of depth


  • Full function remote control for all drilling and driving operations
  • Dual pipe breakout clamp
  • Two stage mast for lower clearance drilling
  • Two-stage mast
  • Side tilt for angle drilling
Subscribe to our mailing list and get e-mail updates of our products.

Subscribe to our mailing list

Stay connected. We would like to see you on our social networks!