Electric hollow rotary cylinder
By using a servo motor and gear meshing transmission design in the electric hollow rotary cylinder, the problems of oil leakage and unstable pressure in traditional hydraulic or pneumatic rotary cylinders are solved, achieving energy saving, emission reduction and production efficiency improvement, and meeting the special processing requirements of workpieces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAOFENGMAO HARDWARE PROD (TAICANG) CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional hydraulic or pneumatic rotary cylinders in machine tool clamping fixtures suffer from problems such as oil leakage and unstable pressure, which increase maintenance costs and affect production quality and efficiency. At the same time, the hydraulic pump is running continuously, which increases power consumption.
It adopts an electric hollow rotary cylinder design, which uses a servo motor and gear meshing transmission to eliminate intermediate links such as gearboxes and oil pumps. The servo motor is powered on demand, consuming power only when it is in motion and cutting off power when it stops, thus eliminating the hydraulic oil circuit and avoiding oil leakage and pressure fluctuations.
It achieves energy conservation and emission reduction, reduces mechanical wear, improves product precision and production efficiency, reduces the frequency of seal replacement, and meets the special processing requirements of workpieces.
Smart Images

Figure CN224347441U_ABST