Home > Products > Mining Equipment > 2017 roof supports for underground mining
2017 roof supports for underground mining
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Product Details
Place of Origin: | Shandong, China | Type: | Other | Machine Type: | Other, mining supporting equipment |
Material: | Carbon Steel | Processing Type: | Forging | Use: | Coal Mining |
Product Description
New Model roof supports for mining
specification
DW single hydraulic prop is a constant for the fluid outside the resistive pillars with metal
roof beams, used in coal mine stope roof support, can be used for mechanized mining face end support and temporary support.
model meaning
For example DW25-250/100
D-Representative hydraulic prop
W-representatives out injection type
25 - Maximum height of the pillar
250 - as the pillar of the rated working resistance
100 - as the pillar of the cylinder diameter
feature
1, Long working stroke , especially for large height variation face of underground roof.
2, Apply inner bore seal bump- resistance in the underground, with a wide range of use.
3, Never broken. Using friction welding, the weld is not broken.
4, Uses a new sealing device, remove the DZ-type pillar between the piston and plunger leakage point, safe and reliable.
5,Level of support available.
6, High strength, no bend.
parameter
Type | Unit | DW35 | DW31.5 | DW28 | DW25 | DW22 | DW20 | DW18 | DW16 | DW14 | DW12 | DW10 | DW08 | DW06 |
Max Height | mm | 3500 | 3150 | 2800 | 2500 | 2240 | 2000 | 1800 | 1600 | 1400 | 1200 | 1000 | 800 | 630 |
Min Height | mm | 2700 | 2350 | 2000 | 1700 | 1440 | 1240 | 1110 | 1005 | 900 | 792 | 685 | 578 | 485 |
Stroke | mm | 800 | 800 | 800 | 800 | 800 | 760 | 690 | 595 | 500 | 408 | 315 | 222 | 145 |
Net Weight (no oil) | kg | 82.8 | 76.4 | 70 | 58 | 55 | 49 | 47 | 43.6 | 39.9 | 36.3 | 32 | 26.7 | 26.5 |
distance between valve and steel beam (mm) | mm | 527 | 267 | 132 | ||||||||||
Rated resistance | kN | 150 | 200 | 250 | 300 | |||||||||
Rated Fluid Pressure | Mpa | 19.1 | 25.5 | 31.8 | 31.8 | 38.2 | ||||||||
The First Sustaining Load | kN | 118--157 | ||||||||||||
Pump Station Pressure | Mpa | 15 or 20 | ||||||||||||
prop rising Speed | mm/s | >=60 | ||||||||||||
prop falling Speed | mm/s | >=40 | ||||||||||||
Diameter of oil cylinder | mm | 100 | ||||||||||||
The Base Area | cm2 | 113 | 109 | |||||||||||
working Substance | include emulgator (MD10 emulgator) or emuision(1-2% emuision) |
Picture
Contact Us
- Jining Bafang Mining Machinery Co., Ltd.
- Contact nameRenee Chang
- Phone86-537-2280551
- Address1509 Room,Baifeng Building,Jinyu Road Rencheng District Jining city Jining,Shandong
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