CGR-155 Drill Rig

Micropiling & Rotary Drill

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Ideal for foundation repair, preconstruction drilling, compaction grouting and micro & helical pile installation, the CGR-155 is a powerful and exceptionally versatile compact drill rig. Perfect for the foundation repair contractor requiring a small, portable rig with the power typically reserved for larger rigs!

Our CGR-155 features a drill head with a 4-speed gearbox and a built-in heavy duty wet swivel. This rig also includes a mud pump for wet drilling and can install more than 900 feet of casing in a single day!

Install grout casing, helicals, drill-in piers and augers effortlessly with the CGR-155.

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  • 55 hp (41 kW), Kohler tier 4 compliant, turbo charged diesel engine
  • Water cooled
  • 12 V electric start
  • 2400 rpm
  • Direct injection
  • Emergency stop button
  • Rpm gauge
  • Oil pressure gauge
  • Oil level light

Hydraulic System

  • Hawe hydraulics power unit
  • 45 gpm (170 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 3B 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
  • Side pivot (20°) option
  • Two stage mast for lower clearance drilling option

Pipe Clamp

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

Leveling Outriggers

  • 4 hydraulic level outriggers with independent cont...

Drill Motor - Rotary Gearbox ML-400

  • Gear 1: 902 rpm at 357 ft lbs (484 Nm) torque
  • Gear 2: 451 rpm at 714 ft lbs (968 Nm) torque
  • Gear 3: 113 rpm at 2855 ft lbs (3870 Nm) torque
  • Gear 4: 56 rpm at 5710 ft lbs (7741 Nm) torque
  • Built in heavy duty wet swivel (see below)

Heavy Duty Wet Swivel

  • Top intake
  • Three quick-change connectors (AWJ, AW, BW, BWL, NW, NWL, HW, HWL, PW, PWL) others available
  • Automatic spring floating system

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

Fuel Tank

  • 13 gallon (50 liters) fuel tank with fuel sending sensor

Hydraulic Oil Tank

  • 30 gallon (113 liters) hydraulic oil tank with built-in site level glass

Depth Capacity

  • 250-400 feet of depth


  • Full function remote control for all drilling operations
  • Dual pipe clamp with breakout
  • 2 stage mast
  • Expandable tracks from 35" to 45"
  • Side pivot (20°)
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