Control linkage returns
Share the actual assembly or motion condition in the RFQ so feasibility review can focus on the working requirement instead of only generic dimensions.
Product Brief
Supplier-facing product scope with RFQ-ready context.
Suitable for inquiry discussions on free length, hook style, pulling force, and finishing conditions.
- Family: Extension Spring
- Material Range: Spring steel wire for general tension use, Stainless wire for humid or outdoor settings
- Application Fit: A precision extension spring for controlled return force, tension holding, and linkage assistance in compact mechanisms.
- RFQ Suitability: Useful for RFQs that specify free length, hook style, initial tension, and operating extension range.
Application Context
Typical use cases buyers ask us to review for this spring type.
Mechanical tension-assist systems
Share the actual assembly or motion condition in the RFQ so feasibility review can focus on the working requirement instead of only generic dimensions.
Handle or latch mechanisms
Share the actual assembly or motion condition in the RFQ so feasibility review can focus on the working requirement instead of only generic dimensions.
Industrial motion-control assemblies
Share the actual assembly or motion condition in the RFQ so feasibility review can focus on the working requirement instead of only generic dimensions.
Manufacturing Notes
Process points that typically affect quotation and sample planning.
CNC coiling with hook-form control
The earlier these process assumptions are visible in the RFQ, the fewer rework loops are needed between engineering review and quotation.
Heat treatment for tension stability
The earlier these process assumptions are visible in the RFQ, the fewer rework loops are needed between engineering review and quotation.
Initial tension adjustment review during sampling
The earlier these process assumptions are visible in the RFQ, the fewer rework loops are needed between engineering review and quotation.
Batch packing that protects hook integrity
The earlier these process assumptions are visible in the RFQ, the fewer rework loops are needed between engineering review and quotation.
Inspection Focus
What the supplier review usually needs to confirm before release.
- Free length and hook geometry
- Initial tension or load range
- Surface finish around hook area
- Sampling records tied to batch identification
RFQ Checklist
Include these items to shorten clarification rounds.
Drawing with hook detail
Adding this information up front improves quote quality and helps route the request to the right production review path.
Working extension and force points
Adding this information up front improves quote quality and helps route the request to the right production review path.
Material and environment notes
Adding this information up front improves quote quality and helps route the request to the right production review path.
Quantity split between sample and production if needed
Adding this information up front improves quote quality and helps route the request to the right production review path.
Buyer Note
Clarify the working condition, not only the nominal shape.
Extension spring inquiries should include hook geometry and working extension. Without those two items, force calculations stay too generic for reliable quotation.
Extension Springs
Representative Product Visuals
Related Products
Nearby product references for the same RFQ conversation.
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Product RFQ
Submit product, quantity, and technical files for review.
Use the grouped RFQ form below to keep the inquiry tied to this product page, its category, and the file set used for quotation review.
Engineering RFQ
Product RFQ
Send the core RFQ details first. Add technical details only if they are already ready.
- Drawing or sample photo
- Quantity and application