High-quality chrome plated piston rods for shock absorbers, gas springs, and hydraulic dampers. With standard diameters of 12mm, 14mm, 16mm, and 18mm, we cater to diverse customer requirements while maintaining strict quality standards.

Manufacturing Process

Our shock absorber piston rods undergo a comprehensive manufacturing process:

1. Raw Material Cutting: Hydraulic steel raw material precision cutting

2. CNC Machining: Including broaching and milling operations

3. Induction Hardening: Medium frequency induction hardening

4. Chrome Plating: Hard chrome plating process

5. Dehydrogenation & Tempering: Stress relief and hydrogen removal

6. Polishing: Superfinish polishing to achieve mirror-like surface

7. 100% Inspection: Comprehensive quality control

Shock Absorber Piston Rod Features

Superior Surface Quality

Chrome plated piston rods feature a mirror-like surface finish with Ra ≤ 0.2μm, ensuring minimal friction and smooth operation. The hard chrome layer provides exceptional wear resistance and corrosion protection, extending the service life of the shock absorber system.

Enhanced Durability

The QPQ (Quench-Polish-Quench) treatment process creates a composite infiltration layer on the metal surface, achieving surface hardness of HRC 40-45 without compromising the core material's toughness. This treatment provides excellent wear resistance, heat resistance, and corrosion resistance.

Precision Engineering

Shock absorber piston rods maintain dimensional accuracy within f7-f8 tolerance. The straightness is controlled within 0.02mm/400mm, ensuring perfect alignment and smooth reciprocating motion.

Why Choose Our Shock Absorber Piston Rod?

Manufacturing Expertise

• 10+ Years Experience: Established in 2012 with extensive industry knowledge

• 50,000㎡ Factory: Large production facility with modern equipment

• 50+ Employees: Skilled workforce and technical team

• 4,000,000+ Annual Production: High production capacity

Competitive Advantages

• Factory Direct Price: Eliminate middleman costs

• ISO 9001 Certified: International quality standard compliance

• SGS Tested: Third-party quality verification