Hollow-Shaft Electric Cylinders in Aseptic Filling
These devices primarily undertake high-precision, high-cleanliness actuation and control tasks, ensuring
the stability and sterility of the filling process.
Their integrated direct-drive structure eliminates contamination risks potentially introduced by traditional
transmission components; combined with a stainless steel housing and sealed design, they meet the hygien
ic-grade requirements of industries such as food and pharmaceuticals.
Their specific functions are manifested in the following three aspects:
Precise Force and Position Control: During critical operations—such as the opening and closing of aseptic
filling valves or the advancement of piston-type filling heads—hollow-shaft electric cylinders achieve a repet
itive positioning accuracy of ±0.001 mm and a pressure control accuracy of ±0.1%. This effectively prevents
liquid leakage or dosage deviations caused by overpressure or insufficient stroke.
Prevention of Cross-Contamination: Traditional pneumatic systems rely on air tubing, fittings, and filters, wh
ich are prone to accumulating condensation and microorganisms. In contrast, hollow-shaft electric cylinders
feature a fully enclosed electric design that requires no external air source, thereby fundamentally eliminat
ing the risk of airborne contaminants entering the cleanroom environment.
Enhanced Automation and Traceability: Supporting digital communication protocols such as IO-Link, these
cylinders can upload operational data (e.g., stroke position, force values, temperature) in real time. This fac
ilitates seamless integration with CIP (Clean-in-Place) and SIP (Sterilize-in-Place) procedures, enabling com
prehensive process monitoring and compliance auditing in accordance with GMP regulations.
