OpeningYour drawing defines the spring. We build it exactly to that geometry, material, and load requirement. Every custom spring is verified before shipment—dimension, rate, and f
Custom Wire Form Special Springs Collection | Precision Manufacturing Made in China
OpeningYour drawing defines the spring. We build it exactly to that geometry, material, and load requirement. Every custom spring is verified before shipment—dimension, rate, and finish checked agains
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Your drawing defines the spring. We build it exactly to that geometry, material, and load requirement. Every custom spring is verified before shipment—dimension, rate, and finish checked against your file. No exceptions.
We are BQUQ, a precision manufacturing factory in Dongguan, China. 20 years on CNC machining, metal stamping, springs, and heat sinks. One floor, four process lines, zero middlemen.
Tolerance: ±0.05 mm on wire diameter, ±0.1 mm on free length (per DIN 2095)
Lead time: 5–10 working days for prototypes, 12–15 days for production runs
No MOQ—order 1 piece or 1 million
Wire diameter range: 0.1 mm to 12 mm
Max spring OD: 150 mm
Surface options: zinc, nickel, black oxide, passivated, or as-drawn
Specifications
Parameter
Value
Notes
Materials
Spring steel (EN 10270-1), stainless (302, 316, 17-7PH), music wire, beryllium copper, Inconel
Material certs available on request
Wire diameter
0.1 mm – 12 mm
Tighter tolerance on request
Coil types
Compression, extension, torsion, conical, barrel, hourglass, wire forms
±0.05 mm wire dia, ±0.1 mm free length, ±1° on angles
Per DIN 2095, ISO 2768-m
Surface finish
Zinc, nickel, black oxide, powder coat, passivated
Salt spray test up to 96 hours
Batch size
1 – 1,000,000 pcs
No MOQ, tooling amortized per order
Inspection
100% dimension check on prototypes, AQL 2.5 on production
Caliper, micrometer, load tester, CMM
Heat treatment
Custom tempering per material
Hardness HRC 42–52 typical
Three reasons buyers send us their drawings
1. Batch-traceable quality.
Each order gets a unique batch number. Raw material lot, machine settings, heat treat cycle, and inspection results are logged against that number. If a part fails in your assembly, we trace it to the exact coil of wire in 30 minutes.
2. Inspection report per batch.
You do not have to trust our word. Every batch ships with a dimensional report, load test data, and material cert. Prototypes include a full CMM report. Production runs include AQL sampling data. No extra charge.
3. One factory for CNC + stamping + spring + heat sink.
Your custom spring is often part of a larger assembly. We machine the bracket, stamp the clip, coil the spring, and bond the heat sink—under one roof. That means one purchase order, one quality system, one shipping date. Fewer vendors, fewer excuses.
Where these parts are used
Custom wire form springs are not shelf items. They are engineered into mechanisms where off-the-shelf parts fail.
Automotive: clutch return springs, valve springs, seat recliner torsion springs, brake pedal return springs. We supply Tier 1 and Tier 2 suppliers.
Medical devices: spring-loaded syringes, surgical stapler springs, catheter guidewire forms. 316 stainless and passivated finish are standard.
Electronics: battery contact springs, EMI shielding clips, heat sink mounting springs. Our heat sink line pairs with these for power electronics.
Industrial equipment: safety valve springs, conveyor tension springs, lockout mechanisms. Heavy wire diameter up to 12 mm.
Consumer appliances: door hinge torsion springs, latch springs, switch return springs. High-volume, low-cost runs.
If your part bends, twists, or pushes back, we can form it.
Q: Is there really no MOQ?
Yes. We run prototypes from 1 piece. For production, we do not set a minimum. Tooling is simple for wire forms—often just a CNC program. You pay for parts, not for minimums.
Q: What tolerance can you hold on my custom spring?
Standard is ±0.05 mm on wire diameter and ±0.1 mm on free length. For critical load rates, we can hold ±3% of specified force. We recommend you send the drawing with your required tolerance—we will confirm if it is achievable before quoting.
Q: What is your lead time for custom springs?
Prototypes: 5–10 working days after drawing approval. Production: 12–15 working days for typical quantities. For urgent orders, we offer 24-hour prototype service on simple compression springs. Air freight from Shenzhen airport is 1–2 days to most global hubs.
Q: Do you provide material certificates?
Yes. Every batch can include EN 10204 3.1 material certs, heat treatment reports, and surface finish test results. Just specify at quote stage. We keep raw material traceability for 5 years.
Send your drawing
Stop guessing. Send us your 2D or 3D file, and we will reply with a firm quote in 12 hours. That quote includes unit price, tooling cost (if any), lead time, and inspection plan. No hidden fees, no surprises.
Email: sc@bquq.com
WhatsApp: +86 13713157787
We are a precision manufacturing factory in Dongguan, China. We have been making custom springs since 2005. Your drawing is safe with us—we sign NDAs on request. Send it now, and get your answer before your coffee gets cold.
