Foundation Stabilization & Rotary Drill Rig

Ideal for foundation repair, preconstruction drilling, compaction grouting and helical pile installation, the CGR-155 is a powerful and exceptionally versatile compact drill rig. Perfect for the foundation contractor who needs a small, portable rig with all 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 our 55hp, track-mounted drill rig, the CGR-155!

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  • 55 hp (41 kW), Kohler tier 4 compliant, turbo charged diesel engine
  • Water cooled
  • 1.96 liter displacement (1995 cc)
  • Radiator cooling system
  • 12 V electric start
  • 2300 rpm
  • Direct injection
  • Emergency stop button
  • Rpm gauge
  • Oil pressure gauge
  • Oil level light

Hydraulic System

  • Hawe hydraulics power unit
  • 38 gpm (143 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 (300 mm wide 1727 mm long - 11.8” wide 68” long)
  • NACHI 3B track motor with automatic brake system
  • Built-in grease filled tensioning arm and spring
  • 35" width


  • Chain driven mast
  • V-Rollers
  • Tilt for travel
  • Standard mast 5 ft (1.5 m) stroke or extended mast 10 ft (3 m) stroke
  • Side pivot (20°) option
  • 2 stages mast 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 controls

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 bellow)

Heavy Duty Wet Swivel

  • Top intake
  • 18,000 lbs (8,160 kg) load capacity
  • Quick change connectors (AWJ, AW, BW, BQ, NW, NQ, HW, HQ, PW, PQ) 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

  • 10 gallon (37 liters) fuel tank with fuel sending sensor

Hydraulic Oil Tank

  • 40 gallon (151 liters) hydraulic oil tank with built in site level glass

Depth Capacity

  • 350-500 feet of depth


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