- 1
The DW external injection single hydraulic prop is one of constant drag type pillar with external fluid supply, it can be used with HDJA or the HDJC metal top beam , used in propping the working face of underground stoping, can be also used in supporting the ends of the working face or temporary supporting.
The DW external injection single hydraulic prop now has formed two serials of φ100 and φ110.
Technical Parameters of φ100 Single Hydraulic Prop:
Type |
Rated working pressure (KN) |
Rated fluid pressure (MPa) |
Setting load (KN) |
Pump station fluid pressure (MPa) |
Max. height (mm) |
Min. height (mm) |
Working stroke (mm) |
Cylinder diameter (mm) |
Used fluid |
Weight (kg) |
DW35-20/100 |
200 |
25.5 |
118-157 |
15-20 |
3500 |
2700 |
800 |
100 |
MD10 emulgator 1-2% emulsion |
88 |
DW31.5-20/100 |
200 |
25.5 |
118-157 |
15-20 |
3150 |
2350 |
800 |
100 |
78.8 |
|
DW28-25/100 |
250 |
31.8 |
118-157 |
15-20 |
2800 |
2000 |
800 |
100 |
70 |
|
DW25-25/100 |
250 |
31.8 |
118-157 |
15-20 |
2500 |
1700 |
800 |
100 |
58 |
|
DW22-30/100 |
300 |
38.2 |
118-157 |
15-20 |
2240 |
1440 |
800 |
100 |
55 |
|
DW20-30/100 |
300 |
38.2 |
118-157 |
15-20 |
2000 |
1240 |
760 |
100 |
51.8 |
|
DW18-30/100 |
300 |
38.2 |
118-157 |
15-20 |
1800 |
1110 |
690 |
100 |
47 |
|
DW16-30/100 |
300 |
38.2 |
118-157 |
15-20 |
1600 |
1005 |
595 |
100 |
43.5 |
|
DW14-30/100 |
300 |
38.2 |
118-157 |
15-20 |
1400 |
9000 |
500 |
100 |
40 |
|
DW12-30/100 |
300 |
38.2 |
118-157 |
15-20 |
1200 |
792 |
408 |
100 |
36.3 |
|
DW10-30/100 |
300 |
38.2 |
118-157 |
15-20 |
1000 |
685 |
315 |
100 |
32 |
|
DW08-30/100 |
300 |
38.2 |
118-157 |
15-20 |
800 |
578 |
222 |
100 |
28.2 |
|
DW06-30/100 |
300 |
38.2 |
118-157 |
15-20 |
630 |
485 |
145 |
100 |
25.1 |
Technical Parameters of φ110 Single Hydraulic Prop:
Type |
Rated working pressure (KN) |
Rated fluid pressure (MPa) |
Setting load (KN) |
Pump station fluid pressure (MPa) |
Max. height (mm) |
Min. height (mm) |
Working stroke (mm) |
cylinder diameter (mm) |
Used fluid |
Weight (kg) |
DW45-25/110 |
250 |
26.3.1 |
143-190 |
15-20 |
4500 |
3216 |
1284 |
110 |
MD10 emulgator 1-2% emulsion |
138.0 |
DW40-25/110 |
250 |
26.3 |
143-190 |
15-20 |
4000 |
2966 |
1034 |
110 |
126.0 |
|
DW35-30/110 |
300 |
31.6 |
143-190 |
15-20 |
3500 |
2620 |
880 |
110 |
113.0 |
|
DW31.5-30/110 |
300 |
31.6 |
143-190 |
15-20 |
3150 |
2270 |
880 |
110 |
103.0 |
|
DW28-30/110 |
300 |
31.6 |
143-190 |
15-20 |
2800 |
1920 |
880 |
110 |
95.0 |
|
DW25-40/110 |
400 |
42.1 |
143-190 |
15-20 |
2500 |
1629 |
871 |
110 |
81.8 |
|
DW22-40/110 |
400 |
42.1 |
143-190 |
15-20 |
2240 |
1369 |
871 |
110 |
76.6 |
|
DW20-40/110 |
400 |
42.1 |
143-190 |
15-20 |
2000 |
1247 |
753 |
110 |
70.8 |
|
DW18-40/110 |
400 |
42.1 |
143-190 |
15-20 |
1800 |
1122 |
678 |
110 |
65.0 |
|
DW16-40/110 |
400 |
42.1 |
143-190 |
15-20 |
1600 |
1016 |
584 |
110 |
59.5 |
|
DW14-40/110 |
400 |
42.1 |
143-190 |
15-20 |
1400 |
910 |
490 |
110 |
54.5 |
|
DW12-40/110 |
400 |
42.1 |
143-190 |
15-20 |
1200 |
803 |
397 |
110 |
, 49.0 |
|
DW10-40/110 |
400 |
42.1 |
143-190 |
15-20 |
1000 |
696 |
304 |
110 |
44.0 |
|
DW08-40/110 |
400 |
42.1 |
143-190 |
15-20 |
800 |
588 |
212 |
110 |
38.8 |
|
DW06-40/110 |
400 |
42.1 |
143-190 |
15-20 |
630 |
495 |
135 |
110 |
34.2 |
|
DW35-200/100L |
200 |
20.8 |
190 |
15-20 |
3500 |
2500 |
1000 |
110 |
131.0 |
|
DW38-200/100L |
200 |
20.8 |
190 |
15-20 |
3800 |
2800 |
1000 |
110 |
139.0 |
|
DW40-200/100L |
200 |
20.8 |
190 |
15-20 |
4000 |
3000 |
1000 |
110 |
144.8 |
|
DW42-200/100L |
200 |
20.8 |
190 |
15-20 |
4200 |
3200 |
1000 |
110 |
150.4 |
|
DW45-200/100L |
200 |
20.8 |
190 |
15-20 |
4500 |
3500 |
1000 |
110 |
158.6 |