Workshop for Drill Rods and Subs

The drill rods and subs are manufactured with high-quality steel to achieve a 30% increase in service life. They are processed by a high-precision NC lathe, ensuring no air leakage at the threaded connection. All threads have undergone special heat treatment to ensure high strength and abrasion. The drill rods and subs are connected using friction welding technology. Next, they are treated using medium-frequency induction heating technique to eliminate residual stress. Because of our unique processing method, we can guarantee drilling tools of superior quality.

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Contact Us

Zhengzhou Kaishan Mechanical & Electrical Equipment Co., Ltd.

Add.: No.169, Nanyang Road, Huiji District, Zhengzhou City, Henan Province, China
Tel.: +86-371-60981935
Mobile Phone: +86-18638697770
Fax: +86-371-63769125
Post Code: 450053
Skype: kaishan001