Zhenzhou Coal use Horizontal honing machine

Founded in 1958, zhengzhou coal mining machinery group co., LTD. (601717, a listed company in Shanghai) was the birthplace of China's first hydraulic support, formerly known as zhengzhou coal mining machinery factory (affiliated to the ministry of coal industry), which was a key project of the "5th" national plan.Total assets of 3 billion yuan, net assets of about 3 billion yuan, has nine production factory, the production area covers an area of about 450000 square meters, with on-the-job employees 4000 people, professional and technical personnel more than 800 people, senior technical personnel more than 200 people, 6 people enjoy the special allowance, state has production supporting height from 0.55 m to 7 m, supporting intensity from 1600 kn to 16800 kn type hydraulic support more than 110000.Products are exported to Russia, India, Turkey and other countries.

Zhengzhou coal purchase JWH series honing machine for many times during 2015 to 2017.They are used for fully mechanized stents overhaul of the cylinder liner hole honing maintenance projects, the efficiency is good .By contrast,the efficiency is more than 2 times compared to the old model. With inner hole diameter more than 400 mm on the cylinder,my honing machine's efficiency can be more than four times than the ordinary honing machine.