Qinchuan Group's Hanjiang Machine Tool Co., Ltd. has successfully developed China's largest-scale "whole-grinding 10-meter heavy-duty ball screw," marking a major breakthrough in the domestic manufacturing of high-value rolling functional components. This achievement fills a critical gap in the market, where long-length and high-precision ball screws have traditionally been dominated by foreign manufacturers.
For many years, the domestic market for ball screws longer than 5 meters remained largely controlled by international companies due to technological and equipment limitations. Hanjiang Machine Tool, as a leading manufacturer of thread grinders and ball screws in China, had already made significant progress in developing CNC screw grinders for 3m, 4m, and 5m specifications, securing a strong position in the domestic market. However, the production of fully ground ball screws in the 5–10 meter range was still an unmet demand.
As the leading unit of the Rolling Functional Components Association, Hanjiang Machine Tool has continuously invested in R&D, leveraging its technological expertise. The company has expanded its product line with a series of seven different CNC screw grinders, covering various sizes. Today, Hanjiang is the only company in China that offers a full range of rolling screw dynamic maintenance equipment, including models such as HIY-022 (coarse screw), HIY-05 (1-meter screw), HIY-025 (1.5-meter screw), HIY-028 (3-meter screw), and HIY-012 (5-meter screw).
Looking ahead, Hanjiang Machine Tool plans to enhance its production capacity for long lead screws and large lead components exceeding 3 meters. During the "Eleventh Five-Year Plan" period, the company will allocate 250 million yuan in technical transformation funds, aiming to increase annual ball screw production to 400,000 units, linear guide production to 200,000 meters, and achieve sales revenue of 800 million yuan. This strategic investment underscores the company’s commitment to strengthening its position in the global precision machinery industry.
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