The HW001 spring is a high-performance core component specifically developed for the soft-open, soft-close systems of automotive tailgates (luggage compartment lids). It strictly adheres to the automotive industry's demanding requirements for durability, consistency, and sensory quality. Through its unique electrostatic flocking surface treatment technology, it delivers precise mechanical performance while completely eliminating the friction noise associated with traditional metal springs, providing drivers and passengers with a gentle, smooth, and silent high-quality tailgate opening and closing experience.
| Aspect | HW001 Technical Solution | Corresponding Industry Value |
|---|---|---|
| Core Material | Uses oil-tempered, quenched, and tempered high-carbon spring steel wire (e.g., 55SiCr, SUP12) conforming to standards such as DIN 17223 and JIS G 3561. | Ensures the spring possesses a fatigue life of millions of cycles within the automotive operating environment of -40°C to 120°C, with anti-relaxation performance meeting the vehicle's full life cycle requirements. |
| Core Process | Precision cold-coiling forming combined with a dual surface treatment of electrophoretic primer + electrostatic flocking. | The cold-coiling process guarantees millimeter-level precision in force curves and dimensions; the flocked layer provides excellent NVH (Noise, Vibration, and Harshness) performance and resistance to salt spray and wear. |
| Key Parameters | Wire diameter range: 1.0mm ~ 9.0mm (customizable). Load type: Compression. Shape: Helical coil. | Perfectly adapts to the diverse requirements of different tailgates—from compact sedans to full-size SUVs and MPVs—for support force, stroke, and installation space. |
| Integrated Function | Combines buffering, driving, resetting, and assist functions into a single component. | As a core part of the tailgate strut or hinge mechanism, it enables smooth assistance during opening, mid-position free stop, and gentle latching during the final closing phase. |
Ultimate Silence, Enhanced Premium Feel
Pain Point Solved: Traditional springs generate "squeaking" noises from inter-coil metal friction or friction against brackets during compression/rebound.
HW001 Solution: The uniform flocked surface layer acts as a physical barrier, effectively absorbing vibrations and eliminating friction noise from direct metal contact, significantly elevating the premium feel of tailgate operation.
Long-Lasting Reliability, Meeting Automotive Lifecycle Standards
Uses high-standard materials comparable to those in automotive suspension springs (e.g., 55SiCr), undergoes pre-stressing treatment, ensuring minimal force decay and stable performance after long-term, frequent use.
Stable and Smooth Operation, Optimizing User Experience
Precise force curve design ensures effortless tailgate opening, even closing force, and provides gentle buffering in the final stage of travel, avoiding a loud "slam" to protect seals and body structure.
Weather and Corrosion Resistance, Adapting to Harsh Environments
The electrophoretic primer provides foundational corrosion protection, and the flocked layer further isolates moisture, salt spray, and other corrosive media, ensuring long-term reliable operation in complex environments like humidity, ice, snow, and road salt.
Synchronous Development Capability: Can engage in joint development and customization based on different OEMs' tailgate system requirements for spatial layout, force curve specifications, and environmental durability standards.
Strict Quality Control: The production process complies with the IATF 16949 quality management system, ensuring performance consistency across batches and meeting OEM requirements for zero-defect delivery.
Broad Compatibility: Current specifications cover most mainstream vehicle platforms and can be optimized for new energy vehicles (which have higher requirements for lightweighting and silence).
The HW001 spring is not just a component; it's a key element in enhancing the vehicle's perceived quality. We commit to:
Material Traceability: All raw materials have complete batch traceability records.
Verifiable Performance: Provides comprehensive test reports for fatigue testing, salt spray testing, thermal cycling testing, and force-displacement curves.
Supply Security: Possesses a large-scale production line with an annual capacity exceeding 100 million units, ensuring stable supply throughout the entire project lifecycle for vehicle manufacturers.