The grinding ring is fixed in the casing of the main machine of Raymond mill and works in cooperation with the grinding roller. There are many material choices for the grinding ring. Commonly seen are alloy steel, alloy carbon steel, manganese alloy steel, high manganese alloy steel, etc. The specific material is determined according to the hardness of the processed material.

The Powder Equipment Foreign Trade Department (Zibo Haofeng New Energy development Co., Ltd.)of Sinoma (Zibo) Heavy Machinery Co., Ltd aims to expand the company's overseas business and enlarge the promotion and sales of the company's equipment and technology, mainly dedicated to the business of equipment and technology promotion in areas such as building materials, metallurgy, solid waste treatment, new materials, intelligent manufacturing, and ultra-fine processing of powder materials. At the same time, it provides customers with services in new product development, related industry auxiliaries, and EPC project general contracting of engineering projects.

The foreign trade department is supported by the strong processing capabilities of Sinoma (Zibo) Heavy Machinery Co., Ltd. and the strong assistance of the expert technical team from Tsinghua University.

At the end of 2016, in order to more conveniently carry out international business, the Powder Equipment Foreign Trade Department was integrated into a limited company - Zibo Haofeng New Energy development Co., Ltd., an independent legal person unit. It is responsible for the equipment export and technology export business of the equipment business department jointly built by Tsinghua Powder and Sinoma (Zibo) Heavy Machinery Co., Ltd.

Relying on our technical strength and laboratory equipment, we can provide the best quality solutions and services for domestic and foreign customers.and it is the only international business department of Sinoma (Zibo) Heavy Machinery Co., Ltd and Tsinghua Powder.