The product can significantly improve the support strength of the mining face, reduce the pro-duction process, and increase the dearee of mechanization of the mining face.its main functions areas follows:it can replace special support formswooden beams.platform sheds.marblebelts, and cluster columns, improve the support strength on the cutting, and effectively isolate the re-lationship between the roof of the control area and the mining area. The forward movement of themining face convevor is realized by the pushing jack, which not avoids the need for additional fixeobiles but also achieves mechanized coa oadina, The owerina, forward movement, and support ac-tions of the cutting support can be mechanized, greatly reducing workload and improving the pro-duction efficiency.Since its introduction, the product has been well received by users and hasachieved obvious technical and economic benefits.

1、缸径(一级/二级) Cylinder diameter(1st/ 2nd)  200/160mm

杆径(一级二级) Rod diameter(1st/ 2nd)   185/130mm

2、总行程( Ful stroke ) 356mm

一级行程(1ststroke)  176mm

二级行程( 2ndstroke)  180mm

3、工作阻力(P=38.2MPa) Yield load(P-38.2MPa)   1200KN

4、初撑力(31.4MPa)Setting load(31.4MPa)   986kN