SN

Descriptions

WKY-250

WKY-250B

WKY-250BMG

WKY-250CM

WKY-310

WKY-310G

1

Drilling diameter/mm

170~270

170~270

170~270

170~270

310~380

310~380

2

Standard aperture/mm

250

250

250

250

310

310

3

Max. axial pressure/kN

400

400

400

400

600

600

4

Continuous drilling depth/m

18.5

18.5

18.5

18.5

19

19

5

Lifting & pressuring power

Hydraulic motor

Hydraulic motor

Hydraulic motor

Hydraulic motor

Hydraulic motor

Hydraulic motor

6

Boost   speed/m/min

0-25

0-25

0-25

0-25

0-28

0-28

7

Pressure rate/m/min

0-2.4

0-2.4

0-2.4

0-2.4

0-2.2

0-2.2

8

Turn power

Variable frequency motor

Hydraulic motor

Hydraulic motor

Hydraulic motor

Hydraulic motor

Hydraulic motor

9

Swing speed/r/min

0-90

0-120

0-120

0-140

0-120

0-120

10

Max. rotation torque kN·m

22

15

15

14

18

18

11

Walking power

Hydraulic motor

Hydraulic motor

Hydraulic motor

Hydraulic motor

Hydraulic motor

Hydraulic motor

12

Walking speed/km/h

0-1.5

0-1.5

0-1.5

0-1.8

0-1.1

0-1.1

13

Gradeability/%

21

21

21

21

21

21

14

Main air compressor air volume/m³/min

40

40

60

40

50

85

15

Main air compressor motor/Kw

220

220

300

Diesel engine

250

400 high voltages start

16

Hydraulic pump motor/Kw

110

132

200

Diesel engine

250

250

17

Total installed power/Kw

438

405

557

477

567

726

19

Dimensions/m

27.1*6.3*8.3

27.1*6.3*8.3

27.1*6.3*8.3

27.3*6.6*8.3

28.5*6.9*8.2

28.5*6.9*8.2

19

Total weight/t

98

98

100

112

145

150