High Precision Powder Metallurgy Shock Absorber Guide Assembly

XIAYI is a specialized manufacturer of powder metallurgy components for shock absorber systems, producing pistons, valve cases, and rod guides that serve as the core functional elements in both 2-wheel and 4-wheel vehicle suspension assemblies. Our sinter powder metal OEM rod guide integrates a precision bearing and PTFE guide ring, ensuring low-friction piston rod movement and long service life under demanding operating conditions.

Our comprehensive shock absorber component portfolio includes:

• Bushing piston rings and PM piston shock absorber parts
• Sliding bearings and rod guide assemblies
• PTFE bands for pistons and Du bushings for rod guides
• Foot valve components and complete shock absorber hardware kits

1. Consistent Density: 6.5 - 6.7 g/cm³ achieved through controlled compaction and sintering parameters, ensuring uniform mechanical properties across every production batch.
2. Optimized Hardness: HRB 60 - 100 range, precisely controlled via sintering temperature and post-treatment to balance wear resistance with machinability.
3. Steam Treatment: 2-hour high-temperature steam holding process produces a 0.004 - 0.005 mm Fe₃O₄ (magnetite) layer, delivering superior corrosion resistance without dimensional compromise.
4. Full Product Line Integration: Complete shock absorber solutions including powder metallurgy pistons, rod guides, foot valves, PTFE bands, and Du bearings — all from a single qualified supplier.
5. PPAP Level III Compliance: Production Part Approval Process documentation submitted as standard, ensuring full traceability and process validation for automotive OEM requirements.

Mixing Powder → Forming → Sintering → Sizing → After Treatment → Steam Treatment → Oil Impregnation → Packing → Shipping

1. OEM Manufacturing Expertise: Decades of experience supplying Tier-1 and Tier-2 automotive manufacturers with consistently high-quality powder metallurgy components.
2. Industry Longevity: Deep specialization in powder metallurgy spanning many years, with accumulated process knowledge that ensures reliable, repeatable production outcomes.
3. Professional Technical Service: Dedicated engineering support from design review through PPAP submission, including material selection guidance and design-for-manufacturability optimization.