... /min)1800Drilling capacityDrilling rod dia (mm)Φ50 Drilling depth (m)1600Swivel headSpindle rotate speed(r/min)Clockwise: 50, 83, ... )Max 55 The third layer lifting speed of single rope(m/s)0.912, 1.55, 2.52, 3.6, ... 4.62 Steel cable diameter(mm)φ18 Rope capacity (m)100Hydraulic systemOil pump modelCBTL-E430/E410-AFH Oil pump ... rope 400 kg Linear speed of full drum (m/s)1.5 2.5 4 Cope capacity φ4.76mm2000 ...