Drawing or Sample
Upload a 2D drawing, sample photo, or reference part so we can review geometry, end shape, and tolerance expectations.
OEM / ODM Service
Send drawings, samples, material requirements, load targets, surface treatment needs, and expected quantity for custom spring review.
Custom Spring RFQ
The compact RFQ card captures contact details, product category, quantity, drawing upload, and message first. Optional technical details can be added only when available.
Engineering RFQ
Send the core RFQ details first. Add technical details only if they are already ready.
Input Checklist
Upload a 2D drawing, sample photo, or reference part so we can review geometry, end shape, and tolerance expectations.
Specify carbon steel, music wire, stainless steel, 65Mn, or the required material standard where applicable.
Provide working height, spring force, torque angle, brush force, or fatigue requirement when available.
Confirm black oxide, cleaning, oiling, plating, or other surface requirements before quotation.
Share prototype quantity, batch quantity, annual demand, and expected delivery schedule.
Mention dimensional inspection, spring force, torque, hardness, fatigue, or material checks if required.
Engineering Review Flow
The team checks geometry, application, and available files before confirming the quotation path.
Material choice, forming route, surface treatment, and inspection needs are aligned with the application.
Prototype needs, batch quantity, and delivery expectations are separated so timing remains realistic.
The final RFQ scope connects product requirements, inspection notes, packaging, and shipment expectations.
Related Product References
Torsion Springs
Representative torsion spring category for custom angle, leg shape, and rotational force requirements.
Special-Shaped Springs
Special-shaped spring option for non-standard geometry and custom assembly constraints.
Special-Shaped Springs
Retaining spring sample for shaped mechanical applications requiring fit and positioning consistency.
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Custom Spring Visuals