The product can sianificantly improve the support strenath of the minindface, reduce the production process, and increase the degree of mechanizationof the mining face.its main functions are as follows: it can replace special supporforms such as wooden beams, platform sheds, marble belts, and cluster columnsimprove the support strenath on the cuttina, and effectively isolate the relationshibetween the roof of the control area and the minina area, The forward movemerof the minina face convevor is realized by the pushina jack. which not avoids thneed for additional fixed piles but also achieves mechanized coal loadina. Thowerina,forward movement, and sunnort actions ot the cutina supnort can bmechanized, greatly reducing workload and improving the production efficiency.ers and haSince its introduction,the product has been wereCalVe0 niachieved obvious technical and economic benefits. At present.coal mines irNortheast, Tai Group, Long Coal Group, Shuangyashan Coal Mine, ZhenxioncYunnan,Jiayang, Sichuan, etc. are using this product

DN(20,22)-300/90,DN(25,28)-250/90,DN(31.5,35)-160/90 型

■技术参数  ■执行标准:MT112.1-2006 ■Technical Parameters ■Standard Compliance: MT112.1-2006