2026-07-08 views:16
In the past, high-precision radial floating main shafts relied heavily on imports from overseas. The procurement process was lengthy, and maintenance costs were high. Beijing Stier CNC has broken down technological barriers by independently developing and mass-producing high-performance radial floating main shafts, providing domestic manufacturing enterprises with a domestic alternative solution.

The Beijing Steyr CNC radial floating main shaft features a monolithic, high-rigidity body with internal precision bearings paired with air-floating floating structures. It provides 360°, seamless radial adaptive compensation, automatically adapting to minor deviations and surface irregularities in the workpiece. The polishing head always conforms to the contours of the workpiece. The equipment supports both dry and wet polishing conditions. Its water- and dust-resistant housing is suitable for the dusty and coolant-laden environments found in polishing workshops. It operates continuously with stability and no overheating or lag.

The products are divided into two major series: pneumatic and electric. The electric main shaft has a higher rotational speed, making it suitable for precision polishing in the 3C industry. The pneumatic main shaft has greater torque, making it suitable for removing burrs from heavy castings. The main shaft features standard flange interfaces, which can be directly integrated with robots and vertical grinding machines without requiring additional modifications.
With its self-developed production line at the factory, Beijing Stier CNC can support customized adjustments for variable travel distances and rotational speed parameters for small batches. We have partnered with over a thousand automation integrators nationwide, providing technical drawings and on-site installation guidance. By using this radial floating main shaft, enterprises can achieve high-precision flexible polishing without needing to invest heavily in imported equipment, thereby significantly reducing the waste rate of workpieces and improving the overall stability of the production line.