Open Type Hydrulic Prop
DW series open type hydraulic prop is normally used for the roof support of coal mining face independently or associated with slide bar or articulated steel beam. It is suitable for gently incm with a gradient less than 25 degree. If safe measuresa are taken, it also can be used for coal face with gradient up to 25-35 degree. Besides, it also could be used as end support in fully mechanized coal mining face. While it needs pump station to supply the emulsion to work, this is the difference from DN series hydraulic prop.
Features:
Reliable performance, convenient and safe to operate, and low maintenance cost.
Item Model | DW06 | DW08 | DW10 | DW12 | DW14 | DW16 | DW18 | DW20 | DW22 | DW25 | DW28 | DW31.5 | DW35 | |
Work resistance kN | 400 | 350 | 300 | 250 | ||||||||||
Rated oil pressure Mpa | 42.1 | 36.8 | 31.6 | 26.3 | ||||||||||
Setting loading force kN | 142.5-190.0 | |||||||||||||
Pump pressure Mpa | 15-20 | |||||||||||||
Max. height mm | 630 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2240 | 2500 | 2800 | 3150 | 3500 | |
Min. height mm | 485 | 785 | 685 | 792 | 900 | 1005 | 1110 | 1240 | 1440 | 1700 | 2000 | 2350 | 2700 | |
Stroke mm | 145 | 222 | 315 | 408 | 500 | 595 | 690 | 760 | 800 | |||||
Cylinder | 110 | |||||||||||||
Areas of base plate cm2 | 172 | |||||||||||||
Working liquid | M10 or MTD emulsion including 1-2% emulsifiler | |||||||||||||
Weight kg | 38 | 40 | 47 | 50 | 54 | 59 | 62 | 66 | 73 | 79 | 91 | 96 | 103 | |
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