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High Quality Mining Equipment DW Outer Injection Coal Mining Hydraulic Acrow Prop

Shandong China Coal Group

High Quality Mining Equipment DW Outer Injection Coal Mining Hydraulic Acrow Prop

Brand Name : chinacoal

Model Number : DW

Certification : ISO, CE, SGS

Place of Origin : Shandong

MOQ : 1set

Price : 1-10000$

Payment Terms : L/C, T/T, MoneyGram

Supply Ability : 5000 set/month

Delivery Time : shipped in 3 days after payment

Packaging Details : carton box, plastic bags, wooden cases or as your requirement

Type : DW35

Max Height : 3500 mm

Min Height : 2700 mm

Working Stroke : 800 mm

Net Weight : 82.8 kg

Rated Resistance : 150 kn

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Introduction of DW Outer Injection Coal Mining Single Hydraulic Prop

DW Outer Injection Coal Mining Single Hydraulic Prop increasingly widely used in the production of its traditional wooden pillars supporting metal friction compared with high recovery, supporting safe and reliable, working resistance constant, setting load is high, the use of flexible benefits. Outer single hydraulic prop can be used alone or in combination with metal hinged roof beams supporting the use, can be used in coal seam dip is less than 25. Stope roof gently inclined to pay, but also for mechanized coal face end support or temporary support available.

Structure of DW Outer Injection Coal Mining Single Hydraulic Prop

DW Outer Injection Coal Mining Single Hydraulic Prop is mainly composed of living, fuel tanks, three valves, cover, base body, reset spring handle body and a piston.

DW Outer Injection Coal Mining Single Hydraulic Prop’s working principle is: When liter column, the liquid injection piping system with three guns insert liquid injection valve body, hung locking sleeve, operating liquid injection gun, pump high-pressure liquid injection fluid through the top opening with three guns valve ball-type check valve, into the pillar, forcing the live cylinder rises; When contacting metal hinged roof pillar roof beams and the top beam close to the face plate, live longer cylinder increases, the acrow prop’s a pressure chamber in a very short time and the same pump pressure, and then release the gunner and pouring off the high pressure fluid pump, the three-way valve with the valve closed, so that acrow prop cavity remain constant. Currently, external injection-type C-shaped handle body parts, welded at both ends of the outer wall of the cylinder is fixed, causing the handle body and cylinder can not be rotated relative to the operating space leading to outer single hydraulic prop is limited, inconvenient to use. In addition, the DW Outer Injection Coal Mining Single Hydraulic Prop uses emulsion, prone to corrosion.

Technology Parameters of DW Outer Injection Coal Mining Single Hydraulic Prop

TypeUnitDW35DW31.5DW28DW25DW22DW20DW18DW16DW14DW12DW10DW08

DW06


Max Heightmm35003150280025002200200018001600140012001000800600
Min Heightmm27002350200017001440124011101005900792685578

485


Working Strokemm800800800800800760690595500408315222145
Net Weightkg82.876.4705855494743.639.936.33226.726.5
Rated ResistancekN150200250300
Rated Fluid PressureMpa19.125.531.838.2
First Sustaining LoadkN118--157
Pump Station PressureMpa15or20
Column Lifting Speedmm/s≥60
Column Descending Speedmm/s≥40
Diameter of Oil Cylindermm100
Base Areacm2113109
Service SubstanceCoal 10 (M10)Emulsifier(or MDT10emulsifier)1-2% Emulsion

Images of DW Outer Injection Coal Mining Single Hydraulic Prop


 High Quality Mining Equipment DW Outer Injection Coal Mining Hydraulic Acrow Prop Manufactures

High Quality Mining Equipment DW Outer Injection Coal Mining Hydraulic Acrow Prop Images

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