... percussion drilling, easy to pull and push casing if equipped with vibrator. Advanced design, reasonable arrangement, compact structure, beautiful ... Light weight, good detachability, easy to operate. Equipped with special 6mA type derrick for user ordering. Technical Specifications final ... (KN)15spindle stroke (mm)400max hoist lift force with single rope (KN)10Oil pumpCB3-10-CFPL gear oil pumpPower ...