Inner Column Type Single Hydraulic Pillar Product Quotation Mining Pillar Uses Smooth Single Hydraulic Pillar

The inner column type single hydraulic prop is a new type of support equipment. It can be used with the metal hinged top beam to support the top plate of the general mining and blasting working face and the support end of the comprehensive mining working face. It can also be used alone as a point column or other temporary support.
Scope of application of inner column single hydraulic prop
The inner column type single hydraulic prop is suitable for inclined coal seam mining working faces with coal seam inclination angles less than 25 degrees to 35 degrees. The conditions for the coal seam roof and floor that it adapts to are: the backwardness of the roof does not affect the recovery of the pillars, the bottom plate should not be too soft, and the pillars are pressed in The depth of the base plate does not deteriorate the integrity of the base plate, otherwise the base should be enlarged. When used in blasting mining working surfaces where coal is relatively soft, protective measures should be taken on the coating surface of the living cylinder to prevent collapse. When the pillars are matched with wooden roof beams or used as point columns, the top caps should be replaced with column caps to avoid damaging the wooden beams.
Specifications and models of inner column single hydraulic prop
Model: Minimum height mm Maximum height mm Stroke mm Working hydraulic pressure Mpa Weight (without oil) kg
DW35 2700 3500 800 19.1 82.8
DW31.5 2350 3150 800 25.2 76.4
DW28 2000 2800 800 31.8 70
DW25 1700 2500 800 31.8 58
DW22 1440 2200 800 38.2 55
DW20 1240 2000 760 38.2 49
DW18 1110 1800 690 38.2 47
DW16 1005 1600 595 38.2 43.6
DW14 900 1400 500 38.2 39.9
DW12 792 1200 408 38.2 36.3
DW10 685 1000 315 38.2 32
DW08 578 800 222 38.2 26.7
DW06 485 600 145 38.2 26.5
Working medium contains M10 emulsifier 1-2% emulsion
Distance between valve and top beam mm 527 267 132
Working load KN 150 200 250 300
Initial support force KN 118-157
Lowering column speed mm/s ≥40
Cylinder diameter mm ∮100
Pump station pressure MPa 15 or 20
Lifting speed mm/s ≥60
Base area cm2 113 113 113 109