Product Details

DW single hydraulic prop,coal mining support machine

Description

DW single hydraulic prop is constant resistive pillar, which can match with a variety of roof

beams and also could be used as the primary column. Mechanized coal mining for coal

generally or blasting mining face plate supporting items are also available for mechanized coal

face end support or other temporary support to use.

Application

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.

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	2200	2000	1800	1600	1400	1200	1000	800	600
Min Height	mm	2700	2350	2000	1700	1440	1240	1110	1005	900	792	685	578	485
Working Stroke	mm	800	800	800	800	800	760	690	595	500	408	315	222	145
Net Weight	kg	82.8	76.4	70	58	55	49	47	43.6	39.9	36.3	32	26.7	26.5
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 DescendingSpeed	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

Detailed picture