Drilling depth (m)

1000

Spindle speeds (r/min)

 forward

87; 160; 230; 270; 334; 500; 710; 1030

 reverse

72; 220

Max.toque of spindle (Nm)

4050

Spindle stroke (mm)

600

Spindle inner dia. (mm)

96

Spindle pull/push force(kg)

10000/7500

Hoist max. lifting force with single rope(kg)

4500

Hoist lift speed with single rope (the third layer)(m/s)

0.69; 1.27; 1.81; 2.64

Hoist wire rope dia. and capacity (m)

 17.5(170kg/cm2)wire rope capacity 110 m

 18.5(170kg/cm2)wire rope capacity 90 m

Workable speed of water brake (r/min)

700- 1800

Balance speed of water brake(single rope)/balance load(single rope)

3-8m/s/45kN

Hydraulic system

(32+12)L/min twin-gear pump,pressure:80kg/cm2

Driving stem

Hexagonal kelly 89×79×6000 mm

Power unit

 Electric motor

Y225-4 37Kw 1480r/min

 Diesel engine

R4105G54 42Kw 1500r/min

Weight (excluding power unit)(kg)

2180

Max. detachable subassembly (kg)

320

Overal dimesion (L×W×H)(mm)

2920*1100*1840