Technical Product Overview
The Vehicle Clock Spring (technically referred to as the SRS Spiral Cable or Rotary Electrical Connector) is the central interface of the automotive steering system. It is responsible for maintaining uninterrupted electrical continuity between the stationary steering column and the rotating steering wheel, regardless of the turning angle.
At Jiaxing Richang Auto Parts, we view this component as a critical safety device. We manufacture high-performance Flexible Flat Cable (FFC) assemblies that power the Driver Airbag (DAB), Horn, and ADAS controls. With a monthly production capacity of 2.8 million sets and a fully integrated supply chain-from FFC lamination to final assembly-we ensure OEM-level quality for partners like BYD, Volvo, and SAIC GM Wuling.
Manufacturing Advantages & Lab Validation
1. GP10 Certified Safety Standards
Reliability is validated, not assumed. Our in-house laboratory is certified to SGMW (SAIC GM Wuling) GP10 standards (July 2016). We utilize Japanese Kikusui Insulation Testers to conduct 100% resistance verification on every vehicle clock spring, ensuring the airbag circuit triggers instantly without impedance issues.
2. In-House FFC Lamination Technology
Signal integrity starts with the cable. We operate 9 dedicated FFC lamination lines and 11 automated punching/printing machines. This internal control allows us to maintain precise conductor spacing, preventing signal interference (crosstalk) between high-current horn circuits and sensitive CAN-bus data lines.
3. Verified Durability Lifecycles
Our vehicle clock springs are engineered to outlast the car. We employ 4 specialized SRC Rotary Durability Testers to simulate millions of steering rotations. Furthermore, components undergo Three-Comprehensive Vibration Testing and High-Low Temperature Shock (-40°C to +85°C) to guarantee performance in extreme climates.
4. Versatile Engineering Architectures
We produce configurations to match any vehicle platform:
- Passenger Vehicles (U-Type): Compact designs for sedans and SUVs (e.g., Baojun 530, Chery Q22).
- Commercial Vehicles (Roller-Type): Heavy-duty guided mechanisms for trucks (e.g., Dongfeng Tianlong, Sany) capable of ±4.8 turns.
Application Sectors
Our Vehicle Clock Springs are currently fitted by major OEMs and trusted by aftermarket distributors globally:
New Energy Vehicles (NEV)
Supporting digital cockpits for Neta (Hozon), Aion, and BYD, managing regenerative braking and voice commands.
Commercial Logistics
Ruggedized assemblies for Volvo, Renault, and Shaanxi Automobile, designed to withstand high vibration and dust.
Light Duty & Pickups
Durable fitments for JMC Ford Transit and Foton work vehicles.
Technical FAQ
Q1: What distinguishes your vehicle clock springs from generic aftermarket parts?
A1: The difference lies in validation. Our products undergo Composite Salt Spray and Dust Chamber Testing to ensure corrosion resistance. Generic parts often skip these expensive tests, leading to early connector oxidation and failure.
Q2: Can you manufacture clock springs for heated steering wheels?
A2: Yes. We design specific models (such as those for the GAC Trumpchi M8) with reinforced copper tracks. These are engineered to handle the higher amperage required for heating elements without thermal degradation.
Q3: How do you ensure the internal ribbon doesn't break?
A3: We use CCD Visual Inspection during the FFC punching process to monitor conductor width and spacing. Additionally, every unit is shipped with a "neutral position" locking pin to ensure technicians install the part centrally, preventing mechanical over-extension.
Q4: Do you offer custom pin-out configurations?
A4: Absolutely. We support complex functional requirements, offering hubs ranging from basic 2-channel connectors to 26-channel systems (e.g., Dongfeng D600) for fully integrated intelligent steering wheels.
Q5: Are your products compatible with automated assembly lines?
A5: Yes. As a Tier-1 supplier to brands like Geely and SAIC, our housings are designed for robotic or manual assembly line integration, ensuring perfect mating with the steering column casting.
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