The piston rod is the key moving load-bearing part of hydraulic cylinders. One end connects to the piston while the other attaches to external loads. It performs reciprocating linear motion inside the barrel to transmit push and pull force.

1. Raw Material Cutting: High-quality round steel is cut into blanks according to required length.
2. Rough & Precision Grinding: Multi-step outer diameter machining removes internal stress and meets basic dimensional tolerance.
3. Hard Chrome Plating: Hard chromium coating is applied on the surface to improve hardness, wear resistance and anti-corrosion performance.
4. Mirror Finishing: Mirror polishing achieves ultra-low surface roughness, ensuring smooth cooperation with seals, reducing wear and oil leakage risk.
5. End Machining & Inspection: Threads, pin holes and other connecting structures are processed. Full inspection on straightness, dimension, hardness and surface appearance is carried out.

• Low friction thanks to excellent surface finish; strong wear and corrosion resistance suitable for continuous reciprocating operation.
• Precise dimensional tolerance extends the service life of seals and the whole cylinder.

Widely used in construction machinery, aerial platforms, test cylinders and various industrial hydraulic systems.