OpeningYour drawing defines the part. Our job is to hit it exactly—every time. We are BQUQ, a precision manufacturing factory in Dongguan, China, with 20 years in metal stamping. We make stamped conta
Your drawing defines the part. Our job is to hit it exactly—every time. We are BQUQ, a precision manufacturing factory in Dongguan, China, with 20 years in metal stamping. We make stamped contact springs to your print, not from a catalog.
Every batch is verified before shipment. You get parts that fit, function, and survive repeated cycles. No surprises on your assembly line.
At a glance: ±0.01 mm tolerance on critical features, 3–7 day lead time for prototypes, no MOQ, full material traceability.
| Parameter | Value |
|---|---|
| Material grade | C17200 beryllium copper, C5210 phosphor bronze, 301 stainless steel, 65Mn spring steel |
| Material thickness | 0.05 mm – 3.0 mm |
| Tolerance (critical) | ±0.01 mm |
| Tolerance (standard) | ±0.05 mm |
| Stamping process | Progressive die, high-speed stamping (up to 800 SPM) |
| Secondary operations | Coining, bending, heat treatment, plating (Au, Ag, Sn, Ni) |
| Surface finish | Ra 0.4 µm (tooled areas), burr-free per Y14.5M |
| Batch size | 100 pcs to 10 million pcs |
| MOQ | None (no MOQ) |
| Inspection | 100% dimensional check on critical features, CMM report per batch |
| Lead time | 3–7 days (prototype), 10–15 days (production) |
| Certifications | ISO 9001:2015, IATF 16949 (automotive line), RoHS/REACH compliance |
We run both progressive and transfer dies. For contact springs, we use high-speed presses with precision straighteners and feeders. This holds flatness and pitch consistency across long runs.
1. Batch-traceable quality. Each lot gets a unique number. We track material heat, die settings, and operator shifts. If a problem appears in your field, we trace it back in minutes, not weeks. You get a full inspection report per batch—dimensions, material cert, surface condition.
2. Inspection report per batch. We do not guess. Our QC lab uses CMM, optical projectors, and hardness testers. Every batch ships with a report showing measured values against your tolerances. You can skip incoming inspection if you trust our data. Many customers do.
3. One factory for CNC + stamping + spring + heat sink. Your stamped contact spring often sits next to a CNC-machined housing or a heat sink. Send us the whole assembly. We coordinate processes internally, cut your logistics cost, and reduce tolerance stack-up between parts. One supplier, one invoice, one responsible party.
Stamped contact springs show up where electrical continuity and mechanical force meet. Common applications:
These parts carry current, hold position, and survive thousands of cycles. Our material selection and heat treatment ensure consistent spring force—not just at first insertion, but after 10,000 cycles.
Looking for a different part? We also machine Precision Stamped Washers and Shims | Custom Metal Stamping No MOQ in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We prototype with 100 pieces and scale to millions. You pay a small setup fee for small batches, but the unit price drops predictably as volume grows.
Q: How do you guarantee tolerance and quality? A: We run SPC on critical dimensions. Our die maintenance schedule is strict—after every 50,000 strokes, we check wear. In-process inspection every hour, plus final CMM report per batch. If we miss your spec, we re-run at no cost.
Q: What is your lead time? A: Prototype in 3–7 days from drawing approval. Production in 10–15 days. For urgent needs, we have a 48-hour express service on simple parts. We quote real dates, not optimistic ones.
Q: Do you provide material certificates? A: Yes. Every batch ships with mill certificates for raw material, plus our own chemical analysis if required. We also provide RoHS, REACH, and conflict-free declarations on request.
Stop comparing quotes from middlemen. Talk to the factory that makes the parts. Send your drawing in PDF, STEP, or DXF format. We review tolerances, material, and plating, then send a firm quote within 12 hours.
Email: sc@bquq.com WhatsApp: +86 13713157787
We are a custom metal stamping factory in Dongguan, China. Precision manufacturing is our only business. No MOQ, no runaround—just parts that match your print.
| Parameter | Capability |
|---|---|
| Materials | SPCC, SGCC, SUS301/304/316, brass, copper, beryllium copper, phosphor bronze |
| Process | Progressive die stamping, fine blanking, deep drawing, bending, tapping |
| Tolerance | ±0.01mm standard, ±0.005mm on request |
| Surface | Zinc plating, nickel, tin, gold, powder coating, passivation, anodizing |
| Die Size | Up to 1200 x 800 mm, 16-250 ton presses |
| Thickness | 0.05 - 6.0 mm sheet metal, wire 0.1 - 8.0 mm |
| Prototype | 7-15 days tooling, no MOQ on samples |
| Inspection | Full report per batch, CMM and optical measurement |
