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Technology Parameters of 2m 2.5M 3.5meters DW DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
| Type | Unit | DW35 | DW31.5 | DW28 | DW25 | DW22 | DW20 | DW18 | DW16 | DW14 | DW12 | DW10 | DW08 | DW06 |
| Max Height | mm | 3500 | 3150 | 2800 | 2500 | 2200 | 2000 | 1800 | 1600 | 1400 | 1200 | 1000 | 800 | 600 |
| Min Height | mm | 2700 | 2350 | 2000 | 1700 | 1440 | 1240 | 1110 | 1005 | 900 | 792 | 685 | 578 | 485 |
| Working Stroke | mm | 800 | 800 | 800 | 800 | 800 | 760 | 690 | 595 | 500 | 408 | 315 | 222 | 145 |
| Net Weight | kg | 82.8 | 76.4 | 70 | 58 | 55 | 49 | 47 | 43.6 | 39.9 | 36.3 | 32 | 26.7 | 26.5 |
| Rated Resistance | kN | 150 | 200 | 250 | 300 | |||||||||
| Rated Fluid Pressure | Mpa | 19.1 | 25.5 | 31.8 | 38.2 | |||||||||
| First Sustaining Load | kN | 118--157 | ||||||||||||
| Pump Station Pressure | Mpa | 15or20 | ||||||||||||
| Column Lifting Speed | mm/s | ≥60 | ||||||||||||
| Column Descending Speed | mm/s | ≥40 | ||||||||||||
| Diameter of Oil Cylinder | mm | 100 | ||||||||||||
| Base Area | cm2 | 113 | 109 | |||||||||||
| Service Substance | Coal 10 (M10)Emulsifier(or MDT10emulsifier)1-2% Emulsion | |||||||||||||
Images of 2m 2.5M 3.5meters DW DN Series Injection Outer Underground Mining Tunnel Pit Props Support Telescopic Adjustable Coal Mine Supporting Single Hydraulic Prop
