1. Characteristics of XYD-44A crawler hydraulic core drilling rig
XYD-44A crawler hydraulic core drilling rig is a multi-purpose spindle well drilling rig suitable for high-speed medium and deep borehole drilling in complex rock formation. HuaxiaMaster well drilling rigs covers all the main foundation and drilling technologies with a range of models whose characteristics, capability and performance find application in every operating condition.
2. Applications of XYD-44A crawler hydraulic core drilling rig
·Hydraulic core drilling rig ,
·engineering well drilling ,
·hydrology and water well drilling
·large diameter foundation piles construction
3. Parameters of XYD-44A crawler hydraulic core drilling rig
XYD-44A crawler hydraulic core drilling rig
Drilling depth 600-1400m
Max open hole caliber 300mm
End hole caliber 75mm
Drilling rod diameter 60mm
Drilling angle 90-65
Drill rig moving stroke 450mm
Spindle 

Spindle speed ( Diesel Engine) Forward 60 97 169 187 276 301
284 487 521 847 1180 1490r/min
Reverse 65 201r/min

Spindle speed ( Electric Motor) Forward 50 81 141 155 230 251
320 406 434 706 984 1247r/min
Reverse 54 167r/min
Spindle stroke 600mm
Spindle max. pressure force 90kn
Spindle inner diameter 96mm
Lifting capacity 120kn
Main hoist 
Max.single line lifting capacity 45kn
Max.single line lifting speed 0-45m/s 
Wire rope caliber 17.5-18.5mm
Hoist capacity of wire line 90-110m
Roller diameter 140mm
Wirerope diameter 6mm
Wire rope length 450m
Mud pump
Type BW-250
Displacement 250 l/min
Work pressure 80kg/cm²
Water inlet pipe diameter 75 mm
Water outlet pipe diameter 50 mm
Power
Diesel engine YC4E135-1 81KW
Electric motor Y225S-4   37KW