Borrbandvagn: GM 75 GT

Multi-purpose, mid-size soil investigation
rig for all major geotechnical,
environmental and geological drillings

• ground water pipes
• all sampling
• casing pipe drilling
• percussion drilling, SPT, CPT and CPT-U
• exploratory drilling
• vane test
• diamond coring, AQ, BQ

Dimensions:

• weight: 3400 - 3900 kg without rods
• length: 3800 mm, transport condit.
• width: 1850 mm
• height: 2100 mm, transport condition
• ground clearance: 330 mm

Undercarriage and power pack:

• steel reinforced, rubber- fabric tracks, hydraulic tightening, width 300 mm or 400 mm
• 8 wheels, 2 track pairs, 2 driving motors-brakes, max travelling speed 5 km/h
• fuel and hydraulic tanks, 100 and 110 lit.
• diesel engine: 60 - 70 kW to power two hydraulic pumps
• rod magazines, working lights, fire protection

Mast:

• feed: hydraulic cylinder and chain
• stroke: 2400 mm
• pull down force: 40 kN
• pull up force: 70 kN
• two spindle: hammer and coring or drilling, hydraulic change over table
• mast displacement: 600 mm
• clamp: single or double for rods and pipes
• mast tilting: sideways +/-10°, back and front 10° and 80°

Rotary heads:

• geotechnical (optio 1): speed range: 0-90 rpm / Max. torque: 1900 Nm
• geotechnical (optio 2): speed range: 0-85 rpm / Max. torque: 2800 Nm
• hammer: Soosan SB20 or similar

Main standard and optional items:

• chuck for 22-45 or 32-56 mm rods
• roll chain lifter for T46 / T56 wire line
• hydr. water pump 50 l / 50 bar
• hydr. compressor 2.5 - 4 m³ / 7 bar
• el. winch, pulling force 40 kN
• hydr. bulldozer blade
• hydraulic support legs
• anchoring device
• radio control for driving, drilling and winch
• integrated drilling command panel
• data logger
• locked tool box
• sensors, detectors, recorders for all investigations
• GPS for rig precise locations