Technical Parameters of HW910A Open-Air DTH Drilling Rig

Rock drilling hardness

f=6-20

Total weight

3100kg

Drilling hole diameter

Φ80-105mm

Overall dimensions

4100x2030x2020

Economic drilling depth

25m

Guide frame pitch angle

Down 118.5°~Up 23.5°, total 142°

Rotation speed

105r/min

Guide frame swing angle

Left 36.5°~Right 11.5°, total 48°

Rotation torque

980N·m

Drill boom pitch angle

----

Lifting force

15000N

Guide frame compensation length

900mm

Feed method

Cylinder-chain

Power

ZS1125GM (20.2kW  2200r/min)

Feed stroke

2000mm

Drill pipe

Φ60

Travel speed

0-2.0Km/h

Working air pressure

0.7-1.4 MPa

Gradeability

30°

Air consumption

9-13m³/min

Ground clearance

254mm

Improvement Comparison

HW910A

KY100

Remarks

Travel components

Motor + reducer structure

Steel ball motor direct drive

Reduces motor pressure and extends motor life

Travel pressure

11MPa

14-16Mpa

Hydraulic system

19.2 pump, fast rotation/fast lifting valve group, new flow divider valve

16 pump

Increased flow

Rotation motor

Cycloid motor

Steel ball motor

Extends motor life

Rotation speed

85r/min (diesel engine 1700r/min)
105r/min (diesel engine 2200r/min)

70r/min (1700)

Rotation speed increased by 20%

Feed speed

336mm/s

280mm/s

Increased by 20%