Partix Auto Partix Auto

OEM/ODM Tie Rod End Factories & Supplier

High-Performance Steering & Suspension Components for Global Automotive Platforms

Corporate Authority & Scale

About Shenzhen Partix Auto Co., Ltd.

Established in 2004, Shenzhen Partix Auto Co., Ltd. is a national high-tech, state-owned holding listed enterprise. Our primary manufacturing base is strategically situated in Zhucheng, Shandong within the highly efficient Qingdao Economic Zone. This location ensures that international shipments can reach the major port of Qingdao within one hour.

For over two decades, we have focused on engineering high-grade fluid pipelines, complex automotive suspension assemblies, and precision rubber-to-metal vibration dampening components. Partix Auto has consistently secured the title of "National Intellectual Property Demonstration Enterprise" and, since 2006, has been designated among the "National Top 100 Automotive Parts Suppliers".

We serve global tier-1 automotive suppliers and OEM clients. By integrating R&D, design, hot forging, high-precision CNC machining, and automated quality verification, we deliver safety-critical steering and suspension parts that operate reliably in demanding environments.

2004
Established Year
Top 100
National Supplier
1 Hour
To Qingdao Port
100%
IATF 16949 Audited
Engineering White Paper

The Science of Safety-Critical Steering Linkages

As the crucial link between the steering gear and the steering knuckles, tie rod ends are subjected to extreme axial, radial, and torsional forces. Our manufacturing processes focus on fatigue limit optimization, minimizing rotational clearance deviation, and preventing environmental ingress.

1. Raw Materials & Forging

We utilize high-grade carbon and alloy steels (such as 40Cr and 45# steel) sourced from certified domestic steel manufacturers. Our hot forging processes preserve natural grain flow lines. This method provides the steering housings with high fatigue strength and resistance to sudden impact fractures.

2. Surface Treatment & Induction Hardening

Ball studs undergo medium-frequency induction hardening to achieve a surface hardness of HRC 56–62. This heat treatment creates a wear-resistant outer layer while maintaining a ductile core. As a result, the component can withstand continuous vibrational stress without micro-cracking.

3. Advanced Dust Boots & Sealing

Our dust boots are molded from premium chloroprene (CR) or polyurethane elastomers. They offer excellent ozone resistance, low-temperature elasticity down to -40°C, and long-term oil resistance. Double-lip sealing ring designs prevent water and dirt from entering the internal assembly.

Component Part Material Standard Key Mechanical Properties Testing Parameter
Ball Stud (Pin) 40Cr / AISI 5140 Tensile Strength ≥ 980 MPa, Hardness HRC 56-62 (Case Depth 1.0-1.5mm) Ultrasonic Flaw Detection & Pull-out Test
Housing (Socket) #45 Carbon Steel / ASTM 1045 Yield Strength ≥ 355 MPa, High Impact Toughness Magnetic Particle Crack Detection
Ball Seat (Bearing) Reinforced POM-C Polyoxymethylene Low Friction Coefficient (μ ≤ 0.15), Wear Resistance Rotational Torque Stabilizer Testing
Dust Boot Chloroprene Rubber (CR) / EPDM High Elasticity (-40°C to +120°C), Salt-Spray Resistant 1 Million Cycle Flex Durability Test
Global Supply Integration

Meeting Global Automotive Procurement Requirements

Automotive procurement departments face challenges regarding lead times, supply chain disruptions, and quality variance. Shenzhen Partix Auto mitigates these risks by acting as a single-source OEM/ODM partner with standardized engineering protocols.

OEM Customization & Reverse Engineering

Whether working from physical samples or 3D CAD models (STEP/IGES formats), our engineering department can quickly prototype steering system linkages. We optimize material selections to balance performance requirements with target unit costs.

  • Direct cross-referencing with global OE part numbers (e.g., Lemförder, Moog, TRW equivalents).
  • Finite Element Analysis (FEA) simulations to assess stress concentration under critical load scenarios.
  • Rapid tooling capabilities that reduce prototyping cycles down to 25–35 days.

ODM Private Labeling & Logistics

For aftermarket distributors and regional brands, we offer end-to-end private label packaging solutions. Our team handles marking, corrosion-resistant retail boxing, and container optimization.

  • High-precision laser marking for tracking, brand logos, and batch traceability.
  • VCI (Volatile Corrosion Inhibitor) plastic wrapping for ocean freight moisture protection.
  • Consolidated shipping via Qingdao port, helping to reduce international shipping costs.
Industry 4.0 Smart Manufacturing

China Factory 4.0: Supply Chain Resilience & High-Capacity Efficiency

By updating our Shandong manufacturing center with automated machinery, we have reduced cycle times, minimized human error, and improved production safety.

Robotic Machining & Welding

Multi-axis CNC turning machines, paired with robotic loading arms, work continuously to ensure tight tolerance control. High-precision laser and friction welding systems produce consistent joint linkages without material distortion.

Automated Assembly & Inspection

Our final assembly lines feature automated sensor stations that measure starting torque, rotational friction torque, and axial play for every individual unit. Parts out of specification are automatically sorted and rejected.

Digitalized Inventory & Logistics

Using an integrated ERP-WMS system, we track raw materials from receipt through production to final shipping. This system ensures full batch traceability, helping to prevent production delays.

Broad Application Engineering

Macro-Industry Solutions Across Automotive Sectors

Different vehicle types require unique suspension dynamics. We manufacture specialized steering linkage designs optimized for various vehicle classes.

New Energy Vehicles (NEVs / EVs)

Electric vehicle batteries add significant curb weight, demanding suspension parts with higher load ratings. We manufacture lightweight aluminum-alloy housings that lower unsprung mass while maintaining high yield strength.

Commercial Trucks & Transit

Heavy-duty trucks face continuous payload stresses. Our commercial vehicle tie rod assemblies feature thick-walled tubing, carbon steel housings, and heavy-duty ball joints built for long-distance highway hauling.

Off-Highway & Construction

Excavators and dump trucks work in environments with high mud, dust, and water exposure. Our multi-lip dust boot designs, paired with high-performance grease formulations, protect internal bearing seats from abrasive wear.

Next-Gen R&D Roadmap

Steering Components Technology Roadmap & Outlook

As the automotive industry transitions to autonomous driving, steer-by-wire setups, and green materials, the technical requirements for suspension linkages are evolving. Our R&D team is working to integrate several key technologies:

Smart Steering Linkages

We are developing ball joints with integrated load-sensing technology. These sensors monitor real-time road force feedback, component wear, and structural fatigue, feeding data back to the vehicle's electronic control unit (ECU). This data helps support autonomous driving algorithms by monitoring chassis health.

Eco-Friendly Manufacturing

To support global carbon reduction goals, we are replacing traditional hexavalent chromium plating with zinc-nickel alloy coatings. These newer coatings provide excellent corrosion protection without creating hazardous heavy-metal waste.

Standards & Compliance

Quality Control & Regulatory Compliance

Our products undergo regular testing to verify they comply with safety and performance standards in our destination markets.

IATF 16949 Audited

Our manufacturing plant runs under an IATF 16949 certified quality management system. Continuous process auditing keeps defect rates low, aiming for zero-defect production.

SAE J193 Steering Standard

We test our tie rod ends according to SAE J193 guidelines, measuring breakout torque, rotational torque, and radial displacement to ensure reliable steering response.

Environmental Directives

All components, raw materials, and packing boxes comply with EU REACH and RoHS environmental standards, allowing for easy customs clearance.

FAQ

Tie Rod End OEM/ODM Procurement FAQ

Get quick answers to common questions about engineering, material testing, shipping, and customization.

Q1: What materials are standard for OEM passenger vs. heavy truck tie rod ends?
For passenger vehicles, weight and NVH are key priorities, so we often use forged steel or lightweight aluminum alloys (6082-T6). Heavy truck and off-road applications require higher strength, so we use medium carbon steels like 40Cr and 45# steel. These are heat-treated to withstand higher shear and tension forces.
Q2: How does Partix Auto guarantee zero-defect steering components?
We perform structural testing during manufacturing. Ultrasonic inspection checks for internal air bubbles in forged materials. Magnetic particle testing checks for surface cracks after CNC finishing. Finally, automated coordinate measuring machines (CMM) check that dimensions match OEM tolerances.
Q3: Can your factory handle low-temperature elastomer requirements?
Yes. We supply components to northern Europe and Canada, where temperatures can fall below -30°C. For these cold climates, we use specialized chloroprene and polyurethane formulas for our dust boots. This material stays flexible down to -40°C, helping to prevent cracks and seal failure.
Q4: What is the typical lead time for custom tooling and first-article approval?
Once we confirm the 3D model drawings, mold tooling takes about 25 to 30 days. We then produce first-article samples for material and dimension validation. Mass production begins after client approval, with typical delivery cycles of 30 to 45 days.
Q5: How do you protect products from corrosion during long ocean transits?
Every steering linkage is coated with a rust-preventive oil film. Components are wrapped in Volatile Corrosion Inhibitor (VCI) bags to prevent air contact. Finally, products are packed in heavy-duty cardboard boxes and secured on pallets with moisture-barrier stretch wrap.