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work resistance from 2.000KN to 18.800KN,, height from 0.85m to 7m. - details see: https://www.machineto.com/top-caving-roof-support-10319230

We are a manufacturer located inthe Henan province, the middle of china. We are founded in December 1987 and listed in Shenzhen Stock Exchange in 2011, having high reputation and rich experience in this industry business. We have smoothly cooperated with large coal mine customers throughout China including Shenhua Group, Longmei Mining Group, Inner Mongolia Yindong Group, Shanxi Kangwei Group, Yangquan Coal Mining Group, Shanxi Lanhua Coal Mining Company, Shanxi Coal Transportation and Sales Group, Xishan Mining Group, Shaanxi Coal Industry Group, Sichuan Coal Industry Group, Gansu Huating Coal Group etc.

We have an annual output of 6000 roof supports. We have researched and manufactured roof supports with work resistance from 2.000KN to 18.800KN, height from 0.85m to 7m. Among which, typeZQY3600/12/26, designed and manufactured for Longmei Group, is of large inclination 60°, at the top level in this industry, has an annual of 900,000 tons in the face.

Top caving roof support
Product	Model	Height(mm)	Central Distance(mm)	Starting Pressure (KN)	Yield Load(KN)	Support Density (MPa)	Base pressure (MPa)
ZF2200/16/24BZ Single link caving roof support	ZF2200/16/24BZ	1600~2400	1250	1940	2200	0.53	0.25
ZF2400/18/27 Single link caving roof support	ZF2400/18/27	1800~2700	1500	1770	2400	0.43	1.22
ZF3200/16/30 Two-leg shield caving roof support	ZF3200/16/30	1600~3000	1250	2326	3200	0.6	1.12
ZF3400/14/26 Top caving roof support	ZF3400/14/26	1400~2600	1250	3206	3400	0.73	2
ZYF4400/16/28 Two-leg shield caving roof support	ZYF4400/16/28	1600~2800	1500	3878	4400	0.72	1.82
ZF4600/19/30 Top caving roof support	ZF4600/19/30	1900~3000	1500	3956	4600	0.83	1.79
ZF4800/17/31 Top caving roof support	ZF4800/17/31	1700~3100	1500	3956	4800	0.7	1.79
ZYF5000/18/32 Two-leg shield caving roof support	ZYF5000/18/32	1800~3200	1500	3878	5000	0.86	2.22
ZF5600/17/27 Top caving support	ZF5600/17/27	1700~2700	1500	5235	5600	0.8	2.34
ZF6500/20/40 Top caving support	ZF6500/20/40	2000~4000	1500	5890	6500	0.86	2.3
ZF6800/19/30 Reversed four-link caving roof support	ZF6800/19/30	2000~4000	1500	5890	6500	0.86	2.3
ZF7200/18/33 Caving rppf support	ZF7200/18/33	1800~3300	1500	6180	7200	0.94	1.6
ZF8000/18/35 Top caving roof support	ZF8000/18/35	1800~3500	1750	6185	8000	0.88	1.7
ZF12000/18/35 Top caving roof support	ZF12000/18/35	1800~3500	1750	10133	12000	1.25	2.5
Chock shield type support
ZZQ4000/11/21(23)D Four-leg chock big inclination electro-hydrolic control roof support	ZZQ4000/11/21(23)D	1100~2300	1500	3206	4000	0.59	1.12
ZZ6200/23/46 Chock shield roof support	ZZ6200/23/46	2300~4600	1500	5235	6200	0.96	1.74
ZZ8000/17/35 Chock shield roof support	ZZ8000/17/35	1700~3500	1500	6185	8000	1.08	2.66
ZZ11000/24/50D Chock shield roof support	ZZ11000/24/50D	2500~5000	1500	10130	11000	1.18	2.75