Wuxi Best Precision Machinery

Business

Best Precision describes three tiers of business: its original precision parts, intelligent equipment and tooling; parts for new-energy vehicles, mainly lightweight structural parts and high-value precision parts; and, newest, linear motion components for machine tools and automation, including high-precision ball and roller screws, miniature screws, linear guides and linear actuators. Its precision parts include turbocharger components such as compressor housings (2026 interim report, p. 13).

Linear motion components

The linear motion business sits in the wholly owned subsidiary Wuxi Yuhua Precision Machinery, set up in January 2022. According to the interim report (p. 13):

• Its ball screws and linear guides are used on some models from well-known domestic machine-tool makers and are in batch delivery; it has also made C0-grade ball screws, the highest ball screw precision grade, and received a customer's first order.
• Its in-house planetary roller screw produced its first samples in 2023, and it is co-developing domestically made equipment for the key processes.
• Ball screws for electro-mechanical brakes (EMB) in electric vehicles have been sampled to customers.

The report does not name customers for the linear motion business. Best Precision also opened a plant in Thailand in late 2025 and is building a second phase there (pp. 13, 18).

Where it stands

Compared with peers that have announced dedicated roller screw plants, Best Precision's disclosures put its roller screws at an earlier stage: sampled, with process equipment still being developed. Its nearer-term linear motion revenue is in machine-tool ball screws and guides.