Ball screws serve as the core transmission components in high-end precision equipment; their accuracy class directly determines the positioning precision and operational stability of the equipment. In accordance with ISO 3408 and JIS B1192 standards, the accuracy of ground ball screws is typically classified from C0 to C5, with lower numerical values indicating higher precision.
Classes C0 through C2 represent ultra-high precision-a critical technological threshold in high-end manufacturing-and are primarily utilized in sectors such as semiconductor production, precision inspection, and optical equipment. Meanwhile, standard machining centers and general-purpose machine tools typically employ ball screws with C3 or C5 accuracy classes.
Customer Case Study
A semiconductor equipment client required the use of ball screws in their wafer transfer and alignment modules, specifying requirements for ultra-high precision, zero backlash, and minimal deformation. To meet the C1 precision standard, our company:
- Precision-engineered telescopic sleeve structure: Utilizing a single-nut lead-offset preload design, this configuration achieves the high rigidity, zero-backlash, and high-precision performance typically associated with dual-nut systems, while offering a more compact structure and reduced assembly errors.
- Temperature-controlled production: Effectively prevents thermal deformation and accuracy drift in lead screws caused by temperature fluctuations, ensuring consistent precision from the very start of the manufacturing process.
- Comprehensive inspection protocol: Every high-precision lead screw (rated C2 or higher) undergoes full inspection. Using advanced testing equipment-such as laser lead-measuring instruments, profilometers, and roundness testers-we conduct a multi-dimensional assessment of critical parameters, including lead error, cumulative error, and repeatability.
With the rapid development of high-end equipment manufacturing in China, the market's requirements for lead screws have evolved beyond basic power transmission. There is now a growing demand for features such as micron-level positioning, high stability, resistance to deformation, and an extended service life.
To achieve a breakthrough, Xionglian has implemented a comprehensive, end-to-end upgrade covering raw materials, manufacturing processes, and inspection protocols. Following extensive process testing and iterative data analysis, we have successfully advanced our precision capabilities-surpassing the C3 and C2 standards to reach C1-grade mass production-thereby breaking through existing technical barriers. Moving forward, we remain committed to deepening our expertise in ultra-precision technology and continuously pushing the boundaries of higher precision. Our goal is to provide the high-end precision manufacturing sector-both domestically and internationally-with stable, reliable, and cost-effective, locally-produced transmission solutions.
Contact Us
Address
No. 4341 Cao An Road, Anting Town, Jiading District, Shanghai
Phone
+86-021-69595050
Contact: Nake
