Tingfeng Hardware’s Expertise in Custom Cold Heading and Spring Manufacturing Supports Automotive Innovation
Publish Date: November 2, 2023
As the electric vehicle (EV) and new energy revolution accelerates, the demand for reliable, high-performance, and miniaturized components has never been higher. Beyond the spotlight on batteries and motors, safety-critical systems like braking, battery management, and advanced driver-assistance systems (ADAS) rely heavily on seemingly small yet vital parts: precision springs and special cold-headed fasteners.
At Tingfeng Hardware, we are at the forefront of supplying these essential components to automotive tier-1 suppliers and EV manufacturers. Our engineering team understands the unique challenges:
-
Vibration Resistance: EVs present different NVH profiles. Our custom compression and torsion springs undergo precise stress relief and presetting to maintain consistent force over millions of cycles in high-vibration environments.
-
High-Strength, Lightweight Fastening: Battery pack assemblies require non-standard fasteners that are both exceptionally strong (up to grade 12.9) and corrosion-resistant. Our multi-station cold heading process ensures superior metal grain flow for enhanced fatigue strength, while finishes like Dacromet provide long-term protection.
-
Space Constraints & Reliability: Sensor modules and connector systems are densely packed. We manufacture micro-sized springs (wire diameter from Φ0.1mm) and miniature stamped battery contacts with tolerances as tight as ±0.02mm, ensuring perfect fit and continuous electrical performance.
“Being an IATF 16949 certified manufacturer, our process is built for the automotive industry‘s rigor,” stated our Quality Manager. “Every batch of custom springs or special fasteners for automotive use comes with full traceability and test reports for parameters like salt spray resistance, load curve, and torque-tension relationship.”
By leveraging our capabilities in precision stamping, CNC machining for sensor housings, cold forming, and spring design, we provide a cohesive supply chain for our EV partners, contributing to building safer, smarter, and more efficient vehicles.