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    The DR-12 is a light, yet powerful PTO rig popular among domestic water well contractors drilling in moderate to severe overburden. It will handle casing up to 12" (305 mm) in diameter, and has been field tested to depths beyond 550 ft (168 m) for a typical 6" (152 mm) cased well.
    The DR-12 is available with an optional pipe tub, single pipe loader arm and telescopic casing jib. The configuration accommodates diverse site conditions.
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    • Stroke: 25' (7.62 m)
    • Pullback/Pulldown: 37,600 lbs/16,400 lbs (17,000 kg/7,400 kg)
    • Torque (stall): 116,000 in.lbs (13,100 Nm)
    • Rotation Speed: 0 - 116 rpm
    • Stroke: 12' (3.66 m)
    • Pullback/Pulldown: 42,400 lbs/18,800 lbs (19,200 kg/8,500 kg)
    • Torque: 500,000 in.lbs (56,500 Nm)
    • Max. Casing Diameter: 12" (305 mm)
    • Air Flow: 900 cfm (25.5 m³/min)
    • Pressure: 350 psi (24.1 bar)
    • Power: 475 HP (354 kW)
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    ModelPrimary ApplicationTop Drive PullbackLower Drive TorqueMax. Casing DiamterConfiguration
    DR-12Domestic water well37,600 lbs (17,000 kg)500,000 in.lbs (56,500 Nm)12¾" (320 mm)PTO
    DR-12WCased/open-hole domestic water well46,000 lbs (20,900 kg)500,000 in.lbs (56,500 Nm)12¾" (320 mm)PTO
    DR-24Domestic and municipal water wells, foundation piles58,000 lbs (26,300 kg)1,000,000 in.lbs (112,000 Nm)24" (610 mm)PTO or deck engine
    DR-24HDDeep wells, mine dewatering, foundation piles84,000 lbs (38,000 kg)2,500,000 in.lbs (282,000 Nm)24" (610 mm)PTO or deck engine
    DR-40Construction foundation piles, large diamter wells84,000 lbs (38,000 kg)3,000,000 in.lbs (339,000 Nm)40" (1,000 mm)Deck engine
    DR-610CConstruction foundation piles40,000 lbs (18,000 kg)2,500,000 in.lbs (282,000 Nm)24" (610 mm)Deck engine
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    Casing DiameterRecorded Depth Ranges
    6" - 8"152 mm - 203 mm500' - 1,300'152 m - 400 m
    10" - 14"254 mm - 356 mm300' - 800'91 m - 244 m
    16" - 24"406 mm - 610 mm100' - 500'30 m - 152 m
    26" - 40"660 mm - 1,016 mm100' - 350'30 m - 106 m
    >40">1,016 mmFor surface casing only
    Note: Casing can be telescoped to achieve greater depths. Results are as reported by DR drill operators
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