Precision Motor Lamination Stampings CollectionYour motor core starts as a drawing. We turn that drawing into stacked, burr-free laminations ready for bonding or welding. Every part is made to your ex
Your motor core starts as a drawing. We turn that drawing into stacked, burr-free laminations ready for bonding or welding. Every part is made to your exact print, not a catalog approximation. We verify dimensions on a CMM before anything leaves the floor. If it does not match your tolerance, it does not ship.
At a glance: ±0.02 mm stamping tolerance, 7-day standard lead time, no MOQ, ISO 9001:2015 certified, 20 years in precision manufacturing.
| Parameter | Value |
|---|---|
| Materials | Silicon steel (M470-50A, M250-35A), Nickel-Iron alloy, Cobalt-Iron alloy, SPCC, SECC |
| Material thickness | 0.10 mm – 0.65 mm (thin gauge specialty available) |
| Stamping tolerance | ±0.02 mm on critical features, ±0.05 mm general |
| Lamination burr height | ≤ 0.03 mm (target ≤ 0.02 mm for high-frequency cores) |
| Die technology | Progressive die, compound die, tandem press line |
| Press capacity | 25 tons – 250 tons |
| Surface finish | Cleaned, deburred, optional phosphate coating or epoxy varnish insulation |
| Batch size | 1 prototype piece to 1,000,000+ production parts |
| Lead time | Prototype: 5-7 days. Production: 10-15 days after approval |
| Quality system | ISO 9001:2015, IATF 16949 (on request) |
| Inspection | First article inspection (FAI), in-process SPC, final CMM report |
1. Batch-traceable quality. Every lot gets a unique heat number and production batch code. If a downstream motor fails, you trace it back to the exact coil, press, and operator shift. We keep records for 10 years. No gray-area sourcing.
2. Inspection report per batch. You do not have to trust us. Each shipment includes a dimensional report, material certificate, and burr height measurement. For high-volume runs, we include SPC charts showing CpK values. Your incoming QC signs off faster.
3. One factory for CNC + stamping + spring + heatsink. Your motor assembly needs more than laminations. You need a shaft, a housing, a spring, a heatsink. We run all four lines under one roof. You send one drawing package, get one quote, one shipping date, one invoice. Fewer suppliers, fewer delays, fewer excuses.
Motor lamination stampings are the magnetic heart of electric machines. We supply cores for:
If your part spins, oscillates, or converts electrical to mechanical energy, our stampings are inside it.
Looking for a different part? We also machine EV High Voltage Contactor Parts | Precision Metal Stamping No MOQ in the same Dongguan factory.
Q: Do you really have no MOQ? A: Yes. We run prototypes from 1 piece. For production, we suggest order quantities that amortize die costs, but you are never forced to buy a minimum batch. You pay for the parts you need, not a warehouse of extras.
Q: How do you guarantee ±0.02 mm tolerance? A: We use precision-ground progressive dies and high-rigidity presses. After the first 50 parts, we run a full CMM inspection. During production, we check critical dimensions every 2 hours with a digital micrometer and height gauge. The final report is included in your shipment.
Q: What is the real lead time for custom metal stamping? A: Prototype tooling (simple die) takes 5-7 days. Production tooling (progressive die) takes 15-20 days. Once the die is approved, first articles ship in 3-5 days. For repeat orders with existing tooling, we ship in 7 days. We quote exact dates before you commit.
Q: Can you provide material certificates for made in China stampings? A: Absolutely. Every coil we use comes with a mill test certificate. We attach the certificate to your batch report. If you need third-party testing (SGS, TUV), we arrange it at cost. Traceability is non-negotiable for precision manufacturing.
Stop comparing quotes from middlemen. Send us your DXF, STEP, or PDF. We will review the geometry, suggest a die strategy, and return a firm quote within 12 hours. No hidden tooling fees, no surprises.
Email: sc@bquq.com WhatsApp: +86 13713157787 Response time: under 12 hours, 6 days a week.
| 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 |
