Hydraulic Equipment for Breaking Apart
Large Diameter Drill Stems

General Specifications and Operational Information

• Rapidly disconnects drill stems
• Functions in all weather conditions
• Operator does not have to leave the cabin to make drill stem changes. Operator controls wrench from the operator’s console
• Wrench consistently disconnects stubborn drill stem joints, reducing drill downtime
• Automatically compensates for drill stem wear
• Wrench uses existing hydraulic pressure from the drill
• Simple to install and low maintenance
• Low initial cost.
• Wrench movement is controlled by the two hydraulic cylinders and two hydraulic valves.
• The wrench moves from the parked position to the drill stem and then cradles the drill stem securely.
• The wrench automatically adjusts to the diameter of the drill stem, grips the stem firmly and then turns the stem.
• The hydraulic system pressure range required is from 2,000 to 3,500 PSI. Pressure is taken from the existing hydraulic system of the drill.
• The binding force grows with the applied torque, which in turn avoids any slippage of the wrench on the drill stem.
• The wrench adjusts to compensate for drill stem wear.
• The two valves are operated from the operator’s console.
• Models are in service for drills using drill stems from 8 5/8” up to 10 3/4 " diameter.