Hengzhixin Factory is a leading manufacturer of precision-engineered hollow piston rods, the core component in gas springs and linear motion systems. Specifically designed for applications like medical beds, office chairs, and study tables, our rods in the Φ6~30mm​ diameter range offer the perfect blend of lightweight performance and structural integrity. Our expertise extends across a family of critical components, including the hollow hydraulic rod, the hollow linear rod​ for guided motion systems, and the versatile hollow steel shaft. Each hollow piston rod is manufactured under a strict quality management system certified to lSO9001 certificate and sGs test. ensuring international standards are met from raw material to finished product.