DW Single Hydraulic Prop

Profile

DW single hydraulic propis constant resistive pillar, which can match with a variety of roof beams andalso could be used as the primary column. Mechanized coal mining for coalgenerally or blasting mining face plate supporting items are also available formechanized coal face end support or other temporary support to use.

DW single hydraulic propwith metal hinged roof beams for general mechanized coal mining face gun andmechanized mining face ends with a roof or temporary payment for coal seamangle is less than 25 ° of face, to take certain measures, also can be used todip 25 ° - 35 ° stopes. This series of hydraulic prop, good stability,technical performance advantages prominent, high-grade coal mining face will bethe single support height from 2.5 meters to 3.5 meters, 3.5 meters below thecoal mining can achieve one full-height, while for the coal seam thickness of 4.5 m below provides end face and advancesupport.

Characteristic

1, Long working stroke ,especially for large height variation face of underground roof.

2, Apply inner bore sealbump- resistance in the underground, with a wide range of use.

3, Never broken. Using frictionwelding, the weld is not broken.

4, Uses a new sealingdevice, remove the DZ-type pillar between the piston and plunger leakage point,safe and reliable.

5,Level of supportavailable.

6, High strength, no bend.

Model significance

For example DW25-250/100：

D-Representative hydraulicprop

W-representatives outinjection type

25 - Maximum height of thepillar

250 - as the pillar of therated working resistance

100 - as the pillar of thecylinder diameter

Parameter

Main technical characteristics: Type Ratedresistance (kN) rated hydraulic pressure (MPa) initial support force (kN)hydraulic pump (MPa) Maximum height (mm) Minimum height (mm) Working stroke(mm) Bore (mm) use of work liquid mass (kg)br /> DW35-150/100 150 19.1118~150 15~20 3500 2700 800 100 coal 10（M10）emulgator （or contain MDT10 emulgator）2％emulsified liquid 88 
DW31.5-200/100 200 25.5 118~157 15~20 3150 2350 800 100 coal10（M10）emulgator（or contain MDT10emulgator）2％emulsified liquid 78.8 
DW28-250/100 250 31.8 118~157 15~20 2800 2000 800 100 coal10（M10）emulgator（or contain MDT10emulgator）2％emulsified liquid70