Qingzhou Haidun Hydraulic Machinery Co., Ltd. is located in Qingzhou City, Shandong Province, a well-known hydraulic component manufacturing base in China. It is a professional manufacturer of high-end precision hydraulic castings for engineering machinery. The company covers an area of 120 mu, a building area of 40000 m2, and a fixed assets investment of 300 million yuan.

The company has strong technical strength and a strong technical backing. In order to continuously innovate and develop high-quality hydraulic castings, our company has long-term cooperation with relevant R&D teams from the School of Materials Science and Technology of Shandong University, the School of Materials Science and Technology of Shandong University of Science and Technology, Qilu University of Technology, and Shandong Jianzhu University. We have more than 20 invention patents and utility model patents.

Smelting process: 4 sets of 3T medium frequency steel shell electric furnaces and 4 sets of 1T medium frequency steel shell electric furnaces in the United States:

Modeling and casting process: 2 horizontal molding casting lines from Dongjiu, Japan, over 100 sets of coated sand hot shell core shooting machines, and 2 coated sand casting lines;

Cleaning process: drum type shot blasting machine, belt type shot blasting machine, internal cavity shot blasting, etc.

We also provide supporting services such as rough machining, precision machining, rust prevention, and spraying.

Excellence, dedication, integrity, and win-win "are our business philosophy that we always adhere to. The high-precision hydraulic castings produced by our company are widely used in industries such as engineering machinery, heavy vehicles, high-speed rail, and ships. We have established good strategic cooperation relationships with many domestic and foreign engineering machinery dragon engineering enterprises, and sincerely welcome domestic and foreign enterprises to seek common development and create brilliance together.