MK 1000 Power Swivel
Similar to the MK 500, this model is fitted with a twin worm and single wheel gear totally enclosed in an oil bath case. Again, the head incorporates a 150mm I.D. hollow spindle which is mounted on taper roller bearings but the MK 1000 is powered by twin piston motors providing controlled rotation and torque in forward or reverse. The loading capacity is also much greater at 40+ ton.