From Design to Delivery, Full Professional Service
Automotive and Locks
Return stability, lifecycle durability, and assembly tolerance for lock, seat, and switch systems.
Spring solutions tuned for structure, load, lifecycle, and assembly requirements.
Electronics and Battery
Conductivity, consistency, and miniaturization with custom plating, wire, and pressure ranges.
Medical and Precision
Built for small batches, many variants, clean requirements, dimensional stability, and traceability.
01
Requirement
Understand usage, load requirements, installation space
02
Design
Engineers provide design proposals and 3D drawings
03
Sampling
Samples built to agreed geometry, material and inspection requirements
04
Production
Mass production with strict QC after sample approval
05
Delivery
Safe packaging, global logistics delivery service
Every process from raw material to finished product undergoes rigorous inspection. We are equipped with universal testing machines, fatigue testers, salt spray testers and other advanced testing equipment to ensure every product meets quality standards.
Quality Promise
- 100% inspection before shipment, zero tolerance for defects
- Quality spring steel (65Mn, SUS304, SWP-B, etc.), material traceability
- Product lifecycle commitment, free technical improvement suggestions
- 48-hour solution for any quality issues
Our engineering team provides free technical consultation to help you select the right spring materials and design solutions, optimize product performance, and reduce costs.
Standard warranty: 12 months from shipment date
Coverage: Material defects, manufacturing defects causing performance issues
Return policy: Free return/exchange for quality issues, negotiation for non-quality issues
Response time: Reply within 2 hours, solution within 48 hours
Sampling Policy
- Sample cost is confirmed at quotation based on geometry, material, quantity and testing requirements
- Sampling period: Standard 3-5 working days, complex 7-10 working days
- Sample fee: Charged for extra samples or special processes (refundable with bulk order)
- Sample testing: Free test report provided, parameters adjustable per requirements
Ordering Info
- MOQ: 1000 pcs for standard parts, depends on process for custom parts
- Packaging: Inner plastic bag + outer carton, export standard packaging available
- Payment: T/T 30% deposit + 70% before shipment, L/C accepted
- Shipping: Domestic 3-7 days, International sea 20-35 days, air 5-10 days
What is the lead time for standard springs?+
Stock and common-item lead times are confirmed against current inventory. Custom lead times depend on material, process, inspection and order quantity.
How long for custom springs?+
Custom samples take 3-5 working days. Bulk production takes 7-15 working days after sample approval, depending on complexity.
What materials are commonly used?+
Common materials include: 65Mn (high carbon steel), SUS304 (stainless steel), SWP-B (music wire), 60Si2Mn (silicon manganese steel). Choose based on application environment.
What is the minimum order quantity?+
MOQ is 1000 pcs for standard parts. For custom parts, it depends on complexity and size. Contact our sales engineers for details.
Are samples charged?+
Sample cost depends on geometry, material, quantity and testing requirements and is confirmed before sampling.
How are shipping costs calculated?+
Domestic: Free shipping within Guangdong for orders over ¥2000. International: Based on trade terms (FOB/CIF/DDP etc.) negotiated.
What is the warranty period?+
Standard warranty is 12 months from receipt. Non-human quality issues within warranty get free replacement or refund.
What payment methods are accepted?+
We accept T/T (telegraphic transfer), L/C (letter of credit), Alipay, WeChat Pay. T/T recommended for first cooperation.