Mining Roof Support Hydraulic Prop

Introduction of DN type hydraulic prop

Our factory has perfect quality management system.
The finished products are tested strictly according to the MT112.1-2006 standard, with reliable quality and excellent performance.
DN (06-45) series prop internally equipped with safety valve to maintain the constant resistance load of the prop.
It could be used with the metal articulated roof beam and the suspended bracket top beam and could also be used as a pillar for supporting the roof of the general mechanization coal mines working face and could be use for supporting comprehensive mechanical coal mining working face end and other temporary support.

Parameters of DN type hydraulic prop

Specification Item	DN04	DN05	DN06	DN08	DN10	DN12	DN14	DN16	DN18
Specification Item	DN04	DN05	DN06	DN08	DN10	DN12	DN14	DN16	DN18
Max. height (mm)	410±10	510±10	650±10	800±10	1000±10	1200±20	1400±20	1600±20	1800±20
Min. height (mm)	340	390	510	590	700	850	1000	1100	1200
Working stroke (mm)	70±10	120±10	140±10	210±10	300±10	350±20	400±20	500±20	600±20
Rated working resistance (KN)	250
Rated working oil pressure (MPa)	49
Oil cylinder inner diameter (mm)	80
Initial support force (kN)	49						68.7-78.5
Base area (cm²)	120
Max. operation torque when initial bracing acting on Handlebar's (N.m)	<200
Prop's rise height when handles bars sway one time full stroke no-load(mm)	≥12						≥20
Prop lower speed (mm/s)	>20						>30
Working medium	5# hydraulic oil
Weight (kg)	18	20	23	26	29	34	38	41	45
Applicable coal seam thickness (m)	0.4	0.5	0.6	0.7-0.8	0.9-1.0	1.1-1.2	1.3-1.4	1.4-1.6	1.5-1.8