... and pump check operations. It is equipped with a lifting system,single drum drawworks, hydraulically raised double or single mast and famous ... drive chassis, fast movement, good cross-country capability. 3.Double drum drawworks, band brake, without auxiliary brake. 4.Mast base and ... line quantity in.(mm)φ0.87/6(φ22/6)Max lifting speed of hook ft/s(m/s)4.6(1 ...