B31 Compact Hydraulic Drill
- Compact hydraulic drill with applications in geotechnical, environmental, foundation exploration, mineral and aggregate prospecting, post-hole augering and shallow surface coring
- The compact size permits mounting on a variety of carriers to provide go-anywhere versatility
- 68 in [1.73 m] feed stroke
- Maximum rotary speed of 460 rpm [48.2 rad/s]
- Maximum torque of 4,450 ft-lbs [6,033.4 Nm]
- Retract force of 17,600 lbs [7,983.23 kg]
- Pulldown force of 13,250 lbs [6,010.1 kg]
Hydraulic Feed System
Pulldown force: 13,250 lbs [6,010.1 kg]
Retract force: 17,600 lbs [7,983.23 kg]
Feed speed, down: 0– 87 ft/min [26.52 m/min]
Feed speed, retract: 0– 65 ft/min [19.81 m/min]
Feed stroke: 68 in [1.73 m]
Power Unit
Deck engines: Cummins, Deutz Diesel
PTO: Transmission or transfer case
Drill Head Rotary
Maximum rotary speed:
460 rpm [48.2 rad/s]
Torque: 4,450 ft-lbs [6,033.4 Nm]
Transmission: 5-speeds
Estimated Operating Capacities
Hollow stem auger, 3-1/4 in [82.55 mm] ID:
50 ft [15.2 m]
Continuous flight auger, 6 in [152.4 mm] OD:
135 ft [41 m]
Continuous flight auger, 14 in [355.6 mm] OD:
30 ft [9 m]
Utility auger, 24 in [609.6 mm] OD: 5 ft [1.5 m]
Concrete/asphalt coring:
1–24 in [25.4 mm–609.6 mm] OD
Optional Equipment
• In-out slide base: 12 in [304.8 mm] of travel
• Adjustable auger guide support
• Above deck combination auger/rod rack
• Toolboxes
• Water pumps
• Break-out wrench
• Auger guide
• Driller platform
• Concrete/asphalt coring kit
Leveling Jacks
Single front/dual rear, 24 in [609.6 mm]
or 36 in [914.4 mm] stroke
Mounting Options
Truck, trailer, tractor, dozer, rubber track or skid
Hydraulic Drill Specs Disclaimer: Note: Actual rotary head performance may vary slightly depending on engine rpm, hydraulic systems’ pressure and pump flow settings.
For all Drilling Depth Capacities on all drills Disclaimer: Above drilling capacities may vary according to subsurface conditions, hoist capacity and drilling medium gpm, cfm and/or psi.