MD-750 Crawlers Coalbed Methane Drilling Rig

Ⅰ．Drill?Capacity

Ⅱ.?Main?Machine?Power
The?main?machine?equipped?with?Weicai?diesel?engine.
Engine?Power:?275KW??????????????Rotating?Speed:?2200r/min
The?main?machine?is?adopted?with?two?diesel?engines?in?double?power?structure.?
Total?Power:?550KW?
Max?flow?rate:?560L/min?for?close?type?hydraulic?system.
Max?flow?rate:?630L/min?for?open?type?hydraulic?system.

Ⅲ.?Drill?Head
In?the?adoption?of?low?speed?high?torque?hydraulic?pump, ?in?2?speed?adjustable?steplessly.?
Rated?Torque?34000N·m????Rotating?Speed?85r/min, ?speed?adjustable?steplessly
Rated?Torque?17000N·m????Rotating?Speed?170r/min, ?speed?adjustable?steplessly
The?rig?adopts?four?sets?Poclain?Hydraulic?motors?made?in?Franch?with?a?counter?shackling? torque?42000N·m.
First?gear?reduction?adopted?to?the?drill?head?with?top?driving;?The?hollow?spindle?is?in?Φ75? mm?diameter, ?adopting?floating?structure?with?spring?damping?structure.?
The?swing?angle?of?drill?head?is?0-45°, ?and?horizontal?moving?stroke?is?0.75m.
Wired?directional?control?system?is?mounted?on?spindle?for?direction-changing?slope? mine?drilling.

Ⅳ.?The?Thrust?and?Pulling?Force?of?Drill?Rig?
Lifting?capacity:?The?machine?is?in?75?tons?Max.?lifting?capacity?with?highest?lifting?speed? at?35m/min, ?
the?speed?is?stepless?adjustable.?
Feeding?Force:?The?machine?is?in?16?tons?Max.?feeding?force?with?highest?feeding?speed? at?110m/min, ?
the?speed?is?stepless?adjustable.
Two?oil?cylinders?are?adopted?together?for?thrusting?and?pulling?with?the?Max.?feeding?&?pulling? stroke?11.8m.

Ⅴ.?Shackles
Oil?cylinder?open-type?butt?clamping?structure?is?adopted?to?achieve?Max?screwing?off?torque?100000?N·m? and?Max?screwing?on?torque?50000?N·m.?

Ⅵ.?Anchoring?block
The?biggest?opening?dia?is?Φ650?mm.

Ⅶ.?Hydraulic?Winch
Main?Winch:?
Max?lifting?capacity:?3?tons?(Bare?Drum)
Steel?wire?dia:?10mm?????
Rope?capacity:?120m
The?max?lifting?capacity?is?60m/min, ?it?is?stepless?shiftable.

Auxiliary?Winch:?
Max?lifting?capacity:?1.5?tons.?(Bare?Drum)
Steel?wire?dia:?8mm
Rope?capacity:?1500m
Single?wire?lifting?speed?is?0-280m/min, ?it?is?stepless?adjustable?and?used?for?lift?
and?mount?detecting?devices.

Ⅷ.?Other
1．?Mud?Pump
It?is?hydraulic?driven?with?stepless?adjustable?flow?rate.?
Max?flow?rate?at?0-600L/min?and?Max?pressure?is?10?MPa.
2．Flow?rate?of?Foam?Pump?:?0-1L/min
3．Flow?rate?of?Lubrication?Pump:?0-15L/h
4.??Chassis:?
Adopted?crawler-type?chassis, ?travelling?in?two?speed?with?the?max?speed?at?3km/h.
5．On?Board?Diesel?Tank:??700L
6．Hydraulic?Oil?Tank:??800L
7．Dimensions(L*W*H):??12500mm*3200mm*3400mm
8．Overall?Weight:??38?tons