Polished Straight Shaft

The polished straight shaft is a cornerstone component for linear motion, guiding, and support systems where high surface smoothness and absolute straightness are non-negotiable. At Kunshan Haizhijie, we have refined the production of the polished straight shaft over 15 years, utilizing high-precision Japanese TSUGAMI Swiss-type lathes to achieve micron-level accuracy. We recognize that in industrial robotics and machine tool guides, a slight deviation in the polished straight shaft can lead to uneven wear and system failure. That is why we focus on achieving a Ra ≤ 0.4μm surface finish and rigorous straightness control, ensuring that your linear modules and sliding bearings operate with zero friction issues and maximum longevity.

Choosing our factory means you are working with a source manufacturer that has built high credibility in the Yangtze River Delta since 2011. We process a variety of materials including SUJ2 bearing steel and 304/316 stainless steel, offering both "hard shaft" (heat-treated) and "soft shaft" options to meet different load and wear requirements. Every polished straight shaft undergoes our comprehensive 100% final inspection, supporting third-party audits to ensure absolute peace of mind. We provide a professional, one-stop service from free technical design reviews to customized packaging for long-distance maritime transport. Our goal is to provide a stable, high-quality component that helps your equipment perform reliably in the field for years to come.