Hydraulic Prop DN Hydraulic Prop Steel Prop from China manufacturer

Hydraulic Prop DN Hydraulic Prop Steel Prop

Payment Terms:	T/T
Place of Origin:	Hebei, China (Mainland)


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Product Detail

Packing: as your demands

Delivery Date: 40-30days

Hydraulic Prop, DN Hydraulic Prop, Steel Prop

DN Series Close Type Hydraulic Prop

DN Series Close type hydraulic prop is normally used for the roof support of coal mining face independently or associated with slide bar or articulated steel beam. It is suitable for gently inclined seam with a gradient less than 25 degree. If safe measuresa are taken, it also can be used for coal face with gradient up to 25-35 degree. Besides, it also could be used as end support in fully mechanized coal mining face.

Features:

1.Light weight, easy and convenient to operate, and no need emulsion supply.

2.Reliable in sealing, and fast to set up and easy to retract.

3.No emulsion drainage while retracting, so it keeps a clean working condtion.

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Model Item	DN04	DN05	DN06	DN08	DN10	DN12	DN14	DN16	DN18
Max. Height (mm)	410±10	510±10	650±10	800±10	1000±10	1200±10	1400±20	1600±20	1800±20
Min. Height (mm)	340	390	510	590	700	850	1000	1100	1200
Work Stroke (mm)	70±10	110±10	140±10	210±10	300±10	350±20	400±20	500±20	600±20
Rated work resistance ( kN)	250
Rated oil pressure (Mpa)	49.0
Cylinder inner diameter (mm)	80
Setting load (kN)	49						68.7-78.5
Base area (cm2)	102
Max. torque on handle (N.m0	＜200
Rise distance upon one cylce of handle (mm)	≥12						≥20
Descent speed (mm/s)	＞20						＞30
Work medium	5# Hydrualic oil
Weight (kg)	19	20	23	26	29	34	38	41	45
Oil capacity (liter)	0.4	0.5	1	1.3	1.7	2.1	2.5	3	3.3
Applicable coal thickness (m)	0.4	0.5	0.6	0.8	1.0	1.2	1.4	1.6	1.8

Model Item	DN20	DN22	DN25	DN28		DN31.5	DN35	DN35	DN38	DN40	DN42	DN45
Max. height (±20mm)	2000	2240	2500	2800		3150	3500	3500	3800	4000	4200	4500
Min Height (mm)	1390	1540	1800	2100		2450	2800	2800	3100	3300	3500	3800
Work stroke (±20mm)	610	700
Rated work resistance (kN)	300		250		160			150
Rated oil pressure (Mpa)	46.3		39.3		25.1			15.7
Cylinder inner diameter (mm)	90							110
Setting load (kN)	68.7-78.5
Base area (cm2)	120							147
Max. torque on handle (N.m)	＜200
Rise distance upon one cylce of handle (mm)	≥20
Descent speed (mm/s)	＞30
Work medium	5# hydraulic oil
Weight (kg)	55	60	68	74		78	86	91	95	99	113	119
Oil capacity (liter)	2.0	2.2	2.5	2.8		3.15	3.5		3.8	4.0	4.2	4.5