Min. Order Reference FOB Price
1 Piece US$550,000.00-580,000.00 / Piece
Product Description
Technical Specification Type KR285C Torque 285KN.m Max. diameter 2000/2300 mm Max. drilling depth 57 m(Lock)/ 88 m(Friction kelly bar) Speed of rotation 7~23 rpm Max. crowd pressure 220 kN Max. crowd pull 220 kN Main winch line pull 320 kN Main winch line speed 80m/min Auxiliary ...