OpeningYour drawing defines the part. We build it.Every stainless steel touch spring in this collection is made to your exact print—wire diameter, coil count, free length, and load curve. We verify ea
Your drawing defines the part. We build it.
Every stainless steel touch spring in this collection is made to your exact print—wire diameter, coil count, free length, and load curve. We verify each dimension before shipment. No guesswork.
This is precision manufacturing for engineers who need repeatable spring performance in high-touch or high-cycle applications.
| Parameter | Value |
|---|---|
| Materials | SUS301, SUS304, SUS316L, 17-7PH, Inconel X-750 |
| Wire diameter | 0.05 mm – 8.0 mm |
| Coil diameter | 0.5 mm – 60 mm |
| Free length | 1 mm – 200 mm |
| Tolerance (wire OD) | ±0.02 mm |
| Tolerance (free length) | ±0.05 mm |
| Surface finish | Passivated, electropolished, or as-drawn |
| Max operating temp | 300°C (SUS304), 400°C (17-7PH) |
| Machines | CNC coiling, 5-axis CNC grinding, automatic stress-relief ovens |
| Processes | Coiling, grinding, shot peening, heat setting, load testing |
| Inspection | 100% dimensional check on critical features, batch load testing |
| Batch size | No MOQ—pilot runs from 10 pieces |
| Lead time | 7–12 days prototype, 15–20 days production |
| Certifications | ISO 9001:2015, material certs per batch |
1. Batch-traceable quality. Each spring gets a lot number. We record wire heat, machine settings, and operator ID. If a field failure occurs, we trace it to the exact batch in minutes. You get a full traceability report with every shipment.
2. Inspection report per batch. We don't just say it's good. You receive a dimensional report, load test curves, and surface finish readings for every batch. Our QC lab uses digital force testers and optical comparators. Data is real, not estimated.
3. One factory for CNC + stamping + springs + heat sinks. Your assembly likely needs more than springs. We run four production lines under one roof. Send us the full BOM—we machine the housing, stamp the contacts, coil the spring, and CNC the heat sink. One supplier, one quality system, one shipping date. Fewer headaches for you.
Stainless steel touch springs are not generic coils. They are engineered for specific contact and force requirements.
Looking for a different part? We also machine Custom Springs Made to Print | Precision Manufacturing, No MOQ | BQUQ in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We run pilot batches of 10–50 pieces for prototyping. Production pricing starts at 1,000 pieces, but we accept smaller orders at a slightly higher unit rate.
Q: How do you guarantee tolerance and quality? A: We use CNC coiling machines with closed-loop wire feed control. Every batch is sampled at 5% or 10 pieces, whichever is greater, for dimensional and load testing. Critical dimensions are 100% inspected. You get the data.
Q: What is your lead time for custom springs? A: Prototypes ship in 7–12 days after drawing approval. Production runs take 15–20 days. If you need faster, we can split the batch and air-ship the first portion.
Q: Can you provide material certificates? A: Yes. Every batch includes a mill certificate for the wire material, showing chemical composition and mechanical properties. We also provide heat treatment records and surface finish reports on request.
Stop waiting for quotes that take a week.
Send us your PDF or STEP file today. We respond with a firm quote within 12 hours—including price, lead time, and a manufacturing feasibility note.
Email: sc@bquq.com WhatsApp: +86 13713157787
We are a precision manufacturing factory in Dongguan, China, with 20 years of spring-making experience. Your drawing is safe with us. Your quote is ready.
| Parameter | Capability |
|---|---|
| Materials | SUS302/304/316, SWC piano wire, SWP music wire, 65Mn, phosphor bronze, beryllium copper |
| Types | Compression, extension, torsion, wire forms, battery springs, touch springs |
| Wire Diameter | 0.05 - 12.0 mm |
| Tolerance | ±0.02mm standard, ±0.01mm on request |
| Surface | Zinc plating, nickel, black oxide, passivation, shot peening |
| Machines | CNC spring coiling machines, torsion machines, wire forming machines |
| Prototype | 72 hours, no MOQ on samples |
| Inspection | Load test per batch, fatigue test data on request |
