Metal Stamping Parts from BQUQ are cold-formed components produced on 25-ton to 250-ton high-speed presses, holding tolerances of ±0.01 mm on critical dimensions. You get parts with 0.8 µm surface fin
Metal Stamping Parts from BQUQ are cold-formed components produced on 25-ton to 250-ton high-speed presses, holding tolerances of ±0.01 mm on critical dimensions. You get parts with 0.8 µm surface finish, flatness within 0.05 mm, and a 24-hour lead time for prototype tooling. This is precision manufacturing made in China, but with the audit trails and QC rigor you expect from a Tier-1 supplier.
Our stamping dies are ground in-house on a Mitsubishi wire EDM, not outsourced. That gives us die clearance control to 0.005 mm. We use a 6-post die set with ball-bearing guides for every progressive die over 5 stations. This eliminates lateral drift. For parts with tight hole-to-hole spacing, we add a micro-adjustable pilot pin system that corrects strip position before every stroke. The result: 99.2% first-pass yield across 20,000-piece runs, verified by our CMM reports.
We stock 12 grades of steel, copper, and aluminum. For high-wear edges, we use SK5, 65Mn, and SUS301. If your part needs hardness above 45 HRC, we send it to our in-house vacuum furnace after stamping. We control tempering to ±5°C. Typical range: 40 to 58 HRC. For electrical contacts, we use C2600 brass with a 0.15 µm Ra finish. For structural brackets, we use SPCC and DC01. All coils come with mill certificates — no mixed heats.
Stamping leaves microscopic burrs. We remove them with a barrel tumbler for small parts or a high-pressure water jet deburring line for larger ones. Then we do a 100% visual check under 10x magnification on any edge longer than 5 mm. If your drawing specifies a chamfer, we add a coining step in the die — no manual filing. This keeps edge break consistent at 0.1 mm max. For parts with threaded holes, we use roll tapping, which pushes material instead of cutting it, preserving grain flow.
We do not ship on trust. Every lot goes through five gates. First, a first-article inspection (FAI) on the initial 5 pieces, measuring all dimensions against your 2D drawing. Second, in-process checks every 30 minutes using a digital micrometer and pin gauges. Third, a final CMM report on 3 random pieces per 1,000 parts — we measure 6 points on every critical hole. Fourth, a surface roughness check with a Mitutoyo SJ-210. Fifth, a packaging and count verification against your PO. You get the CMM and FAI PDF with every shipment.
Prototype dies are not production dies. We use a modular die system with standard punches and die buttons. This cuts tooling cost by 40% compared to custom-ground dies. For a simple flat part, prototype tooling starts at $300. For a progressive die with 10 stations, it is $2,500 to $4,000. We amortize this tooling cost over your first 5,000 pieces at no extra charge. If you later move to high volume, we transfer the design to a hardened tool steel die (D2 or M2) for runs above 100,000 pieces.
We do not force you into a minimum order. We accept 100-piece prototype runs and 2-million-piece annual contracts. Our press shop runs 24/7, so we slot small orders into gaps between large runs. The typical lead time for 1,000 pieces is 5 working days after tooling approval. For 100,000 pieces, add 7 days. We hold buffer stock for your repeat orders — you can call us on Monday and have parts on Thursday. This is why we say no MOQ. You pay only for what you need.
If your part has complex 3D contours, deep pockets, or tight internal threads, CNC machining is better. We do that too — our 3-axis and 5-axis machines hold ±0.005 mm. But for flat parts, brackets, clips, or anything with repeated geometry, stamping is 5x faster and 30% cheaper per piece. Check our CNC cutting tool selection guide for tooling choices. For tolerance decisions, read our CNC machining tolerances guide to see which features need stamping vs. secondary machining.
| Parameter | Value / Range |
|---|---|
| Materials | SPCC, SECC, SUS301/304, 65Mn, SK5, C2600, 6061-T6, 5052 |
| Thickness | 0.1 mm to 6.0 mm |
| Part Size (max) | 500 mm x 300 mm |
| Hardness (HRC) | 40–58 HRC (after heat treatment) |
| Tolerance (critical) | ±0.01 mm |
| Tolerance (general) | ±0.05 mm |
| Surface Finish (Ra) | 0.8 µm (standard), 0.15 µm (polished) |
| Runout (hole-to-hole) | 0.02 mm |
| Flatness (per 100 mm) | 0.05 mm |
| Prototype Lead Time | 24 hours (tooling) + 3 days (parts) |
| MOQ | No MOQ (100 pieces accepted) |
There is no MOQ. We take 100-piece prototype orders and scale to 2 million pieces per year.
Yes, we build custom progressive dies from your 2D or 3D file, and we keep the tooling design for free revisions within 30 days.
We run a first-article inspection on 5 pieces, then do in-process checks every 30 minutes, plus a final CMM report on 3 random samples per 1,000 parts.
Prototype tooling takes 24 hours, and 1,000 parts ship in 5 working days; 100,000 pieces ship in 12 working days.
Send your drawing for a firm quote within 12 hours. Email sc@bquq.com or WhatsApp +86 13713157787. We reply with price, tooling cost, and lead time — no generic ballparks.
| 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 |
