Custom
Suspension Part
for Shock Manufacturers
Piston rods, threaded sleeves, spherical bearings, bump stops, shock mounts — precision manufactured for coilover brands and shock absorber OEMs. Stable quality, tight tolerances, direct engineering communication.
Struggling with Inconsistent Suspension Part Suppliers?
Piston Rod Leakage
Unstable chrome thickness on piston rods damages oil seals prematurely, causing fluid leakage that drives warranty claims and brand damage.
Spring Preload Issues
Threaded sleeves with poor tolerance make coilover height adjustment inconsistent — a major failure point for performance suspension brands.
Spherical Bearing Noise & Wear
Inferior spherical bearings introduce play and misalignment, creating noise complaints and premature component failure under dynamic loads.
Bump Stop Cracking
Low-quality polyurethane bump stops crack under extreme compression — especially in off-road and heavy-duty applications.
Peak Season Delays
Suppliers without controlled production capacity cause shipment delays during peak season, disrupting your assembly schedule and customer commitments.
Inconsistent Batches
Dimensional variation across production batches makes quality control unpredictable and forces your team to inspect every incoming shipment.
Structural Suspension Part
Core Component
Piston Rod / Damper Rod / Shock Shaft
Precision ground and hard chrome plated piston rods for performance shock assemblies and coilover systems.
- Ra ≤ 0.2μm surface roughness
- Chrome thickness 15–30μm
- 1045 / 4130 chromoly / stainless steel
- Custom thread & length
Bump Stop / Jounce Bumper / Axle Snubber
Progressive polyurethane bump stops that absorb extreme compression energy and prevent bottom-out damage.
- Oil resistant polyurethane
- Custom density options
- Long service life
Coilover System
Threaded Sleeve / Coilover Sleeve + Collar Set
High-load threaded sleeves for coilover height adjustment. Includes lock collar, spring perch, and lower spring retainer.
- 6061 / 7075 aluminum
- Hard anodized option
- Custom thread pitch
- Lock collar & spring perch included
Mounting
Shock Mount / Eyelet / Top Strut / Body Cap
High-strength aluminum mounting ends and body caps engineered for precise bore tolerance and structural integrity.
- 6061 / 7075 aluminum
- Precise bore tolerance
- Hard anodized optional
Spherical Bearing / Uniball
High-strength spherical bearings for shock mounting where misalignment compensation and durability are critical.
- Metric & Inch sizes available
- PTFE lining option
- Custom clearance
- Chrome plated ball
Mounting
Shock Mount / Eyelet / Top Strut / Body Cap
High-strength aluminum mounting ends and body caps engineered for precise bore tolerance and structural integrity.
- 6061 / 7075 aluminum
- Precise bore tolerance
- Hard anodized optional
Suspension Brands Choose Us for Functional Tolerance
Standard machining tolerances are not good enough for suspension components. We manufacture to functional performance standards — the kind that translates into zero warranty returns and repeat orders.
Tolerance Control for Performance Suspension
Ra ≤ 0.2μm surface roughness, straightness ≤ 0.05mm, chrome 15–30μm controlled. We understand that suspension requires functional tolerance, not just dimensional compliance.
Material & Process Expertise
1045 carbon steel, 4130 chromoly, 42CrMo, stainless steel, 7075-T6 aluminum — with hard chrome, nitriding, and PVD coating. Material recommendations based on load and environment.
Stable Supply for Growing Brands
Low MOQ for new brands. Bulk production for established manufacturers. Controlled production scheduling prevents peak season delays year-round.
Direct Manufacturer — No Trading Company
In-house CNC turning, precision grinding, surface treatment, and assembly support. Direct communication with the production team — no middleman.
Production-Based Manufacturer.
Every Critical Component Inspected Before Shipment
Who We Supply
From Drawing to Delivery
A streamlined OEM process built for engineering and procurement teams who need fast, accurate responses.
Submit Drawings
Send your technical drawings, specifications, or samples across any component type.
Engineering Review
Our team evaluates material, surface treatment, and tolerances — response within 24 hours.
Technical Quotation
Receive MOQ, lead time, and full specification confirmation before committing to production.
QC & Delivery
In-house inspection with batch reports. Consistent delivery scheduling maintained year-round.