Product Details

Product Description

Mining machinery individual hydraulic prop External injection single hydraulic prop

Single Hydraulic prop is a kind of new environmental protection supporting equipment , it can be matched with metal articulated roof beam used in high-grade conventional and blasting face supporting roof and the fully mechanized working face support end ,also can do some column or other temporary support .

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Mining machinery individual hydraulic prop External injection single hydraulic prop

Inner injection hydraulic prop is suitable for the coal seam dip angle is less than 25-35 degrees of coal seam working face .

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.

Type	Unit	DW35	DW31.5	DW28	DW25	DW22	DW20	DW18	DW16
Max Height	mm	3500	3150	2800	2500	2200	2200	1800	1600
Min Height	mm	2700	2350	2000	1700	1440	1240	1110	1005
Working Stroke	mm	800	800	800	800	800	760	690	595
Net Weight	kg	82.8	76.4	70	58	55	49	47	43.6
Rated resistance	kN	150	200	250	300
Rated Fluid Pressure	Mpa	19.1	25.5	31.8	38.2
The First Sustaining Load	kN	118--157
Pump Station Pressure	Mpa	15or20
Column LiftingSpeed	mm/s	≥60
Column Descending Speed	mm/s	≥40
Diameter of oil cylinder	mm	100
The Base Area	cm2	113			109
Service Substance		Coaly(MD10 emulgator)emulgator or emulgator 1-2% emuision

DW Coal Mining Painted Adjustable Hydraulic Scaffolding Props with metal hinged roof beams for general mechanized coal mining face gun and mechanized mining face ends with a roof or temporary payment for coal seam angle is less than 25 ° of face, to take certain measures, also can be used to dip 25 ° - 35 ° stopes. This series of hydraulic prop, good stability, technical performance advantages prominent, high-grade coal mining face will be the single support height from 2.5 meters to 3.5 meters, 3.5 meters below the coal mining can achieve one full-height, while for the coal seam thickness of 4.5 m below provides end face and advance support
Coal Mining Painted Adjustable Hydraulic Scaffolding Props Characteristic
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

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