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Mechanical
B51
The B51 is the next iteration of classic Mobile Drill power and versatility – it has an available 9,876 ft-lbs torque, can be track or truck mounted, making it ideal for the 100-125 ft hollow-stem auger market. A small footprint mechanical drive unit, perfect for the geotechnical market. The heart of the B51 is the power shift transmission – this gives the operator options to shift gears and even direction without stopping rotation. This feature gives the operator a new level of control of the drill string when augering in stiff/sticky clays, making for faster and safer production in the toughest conditions.
Brochure
B51 Brochure
Specification
HYDRAULIC FEED SYSTEM
Pulldown force: 20,000 lbs [9,072 kg]
Retract force: 30,000 lbs [13,608 kg]
Feed speed, down: 62 ft/min [18.8 m/min]
Feed speed, retract: 41 ft/min [12.4 m/min]
Rapid: 80 ft/min [24.3 m/min] Feed stroke: 6 ft [1.83 m]
POWER UNIT
Diesel Engine: John Deere Tier 3, 125 HP (93 kW) or Deutz Tier 3, 116 hp (86.5 Kw)
Engines include: 12V starting circuit, electronic engine module installed in the operators control panel, 18 gallon (68 l) fuel tank with lock, lockable battery box, cold weather starting package.
RIGHT ANGLE DRIVE
Single speed heavy duty right angle drive with tapered roller bearings and a ring gear and pinion. All bearings and gears are lubricated through an oil bath.
2 in. [50.8 mm] hardened output shaft with flex chain coupling to a 1-3/4 in. [44.5 mm] kelly bar.
DRILL HEAD ROTARY
Total enclosed “dry box” with tapered roller bearings.
1-3/4 in. [44.5] heat treated alloy steel kelly drive bar.
3-1/4 in. [82.6 mm] ID hollow spindle
Maximum torque and Maximum rpm (engine specific): HIGH TORQUE OPTION John Deere – 1st gear: 11,420 ft-lb [15,483 Nm] 6th gear: 672 rpm Deutz – 1st gear: 8,880 ft-lb [12,039 Nm] 6th gear: 644 rpm HIGH SPEED OPTION John Deere – 1st gear: 8,000 ft-lb [10,846 Nm] 6th gear: 960 rpm Deutz – 1st gear: 6,210 ft-lb [8,420 Nm] 6th gear: 920 rpm
SPT AUTOMATIC HAMMER
ASTM D-1586 standards, standard duty and heavy duty
140 lb [63.5 kg], 170 lb [77.1 kg], 300 lb [136.1 kg], 340 lb [154.2 kg] slugs available
ESTIMATED OPERATING CAPACITIES
Hollow stem augers, 4-1/4 in [108 mm] ID: 250 ft [76 m]
Continuous flight auger, 6 in [152.4 mm] OD: 300 ft [91 m]
Rotary drilling, NWJ/NW drill rod with 5 in [127 mm] OD bit: 1,500 ft [457 m]
Diamond core drilling: N wireline: 1,600 ft [487 m] H wireline: 1,100 ft [335 m] P wireline: 730 ft [222 m]
Note: Above drilling capacities may vary according to subsurface conditions, hoist capacity and rotary head option.
HOISTS
MAIN
Single Line Capacity: 8,500 lbs [3,855.5 kg]
Line speed: 0–75 fpm [22.9 m/min]
Cable diameter: 1/2 in (.500) [12.7 mm]
Cable length: 100 ft [30.5 m]
AUXILIARY
Single Line Capacity: 4,500 lbs [2,041 kg]
Line speed: 0–135 fpm [41.2 m/min]
Cable diameter: 5/16 in (.325) [8.3 mm]
Cable length: 100 ft [30.5 m]
AUXILIARY
Single Line Capacity: 3,000 lbs [1,361 kg]
Line speed: 0–126 ft/min [38 m/min]
Cable diameter: 5/16 in (.325) [8.3 mm]
Cable length: 75 ft [22.9 m] standard
SAFE-T DRIVER
Single Line Capacity: 900 lbs [408.2 kg]
Line speed: variable up, freefall down
Cable diameter: 1/4 in (.250) [6.4 mm]
Cable length: 300 ft [91.4 m]
WIRELINE
A wide variety are available
Line capacities from 700 ft [213 m] to 7,500 ft [2,286 m]
OPTIONAL EQUIPMENT
Mast: 20 ft [6 m], 25 ft [7.6 m] or 30 ft [9.1 m]
In-out slide base/Side-to-side slide base
Rod clamp, manually adjusted, 1-5/8” [41.3 mm] through 8-1/4” [209.6 mm]
Rod clamp, hydraulically adjusted, 1-3/8” [34.9 mm] through 5-7/8” [149.2 mm]
Drive tool quick change adapters
Wide selection of auger/rod racks
Top mount water/air swivels for rotary and coring
2 in [50.8 mm] Standpipe
Water pumps – piston, centrifugal and progressive cavity
Hydraulic chuck – various sizes
Break-out wrench, hydraulic activated
Driller/helper platforms
Night Lights
MOUNTING OPTIONS
Truck
Track Carrier