Frequently Asked Questions

MOQ depends on part size and material. Prototypes start from 100 pieces; mass production typically starts at 10,000 pieces per year. Send your drawing for a part-specific answer.

Standard stamping tolerances are ±0.1 mm; we hold ±0.025 mm on critical features where required, verified with 100% dimensional inspection.

Copper and copper alloys, brass, stainless steel, aluminum, steel, phosphor bronze and beryllium copper. Our material library covers 13 standard families.

Yes. Progressive die design, tool making and maintenance are all in-house — which keeps lead times short and quality predictable.

Tooling typically 3–6 weeks depending on complexity; production lead time 2–4 weeks after PPAP approval.

Yes. We work as a manufacturing partner for OEMs and Tier-1 suppliers, with PPAP documentation and IATF 16949 quality systems.

Yes. Our engineers review your drawing early and flag DFM issues — material utilization, bend radii, tolerances — before tooling starts.

Yes. NDAs are signed before drawings are shared, and customer tooling is kept confidential and dedicated to the customer’s program.

Typical terms are T/T with a deposit and balance before shipment, or irrevocable L/C at sight for larger programs. Terms can be discussed per project.

Yes. Prototype and pre-production samples are shipped for customer approval, with full FAIR reports, before mass production starts.

Yes. We export worldwide from Dongguan, China, handling FOB, CIF and DDP arrangements with full export documentation.

Send your drawing (PDF, STEP or IGES), material, annual volume and target tolerance. Your drawing goes straight to our engineering team for a DFM review, and pricing follows the review.

PPAP documentation is part of our normal program flow under IATF 16949. Tell us the level your program requires and we confirm the package scope before tooling starts, including the control plan, process FMEA and first-article inspection records. Send your drawing and the PPAP level for a specific answer.

Yes. Every production lot ships with mill certificates tied to the reel lot, alongside dimensional inspection records, so your incoming inspection and program documentation pull from the same records we generated on the floor. Where a program needs heat-level traceability, the certificate follows the coil through the run.

Yes. Critical dimensions are checked in-line at press speed with camera vision and sensor monitoring, and in-line SPC with Cpk reporting is available on critical dimensions where your drawing calls for it. Parts also pass 100 percent dimensional inspection before packing.

We run in-line SPC with Cpk reporting available on critical dimensions, so capability is measured and reported rather than claimed. Send the drawing with the characteristics and the reporting cadence your program needs, and engineering confirms what we can hold on those features.

Burr height is a drawing callout and it is controlled in the die first: punch-to-die clearance set as a share of material thickness, sharpening scheduled on stroke count, and edge condition verified on optical measurement per lot. Where the drawing needs a defined edge condition we work to your standard, including ISO 13715 edge callouts, and secondary deburring runs where the burr limit is tighter than the die alone can hold.

Yes. Die export and ownership transfer is a documented program: the tool is built or refurbished to run in your plant, documented, then packed and shipped with its die maintenance history. Tell us the destination and the press it will run on, and engineering confirms the die rework scope before quoting.

Our press fleet runs 25 to 110 tonnes, 21 high-speed presses at up to 300 SPM, on 0.05 to 3.0 mm strip. A part that needs 200 tonnes sits outside that envelope and we say so at review instead of quoting around it. Send the drawing and the tonnage you calculated for a straight answer.

Selective reel-to-reel silver plating is quoted to the thickness band and the masked zones on your drawing, and runs through approved partner lines under our quality plan with thickness verified per lot. Send the plating section with the band and the zone map, and engineering confirms the band we can hold for your part.

We can work to UL 310 requirements where your drawing or the end application calls them out, and RoHS declarations are available per lot. Send the standard revision your program is qualified against and the compliance document set your quality team needs, and we confirm the package before tooling.

Production MOQ is 10,000 pieces per part number. Where a program covers a family of related numbers, we quote the mix together so tooling and material are planned as one program, and each part number is still priced on its own volume rather than an averaged one.

Brazed and bimetal terminal lugs are reviewed part by part, because the joint specification decides whether the part is a stamping or a stamped-and-joined assembly. Send the drawing with the base metal, the braze alloy callout and the clad thickness, and our engineers confirm the route we can run and the standard we work to.

Yes. The standard named on your drawing governs: DIN 6930 stamped-part tolerances, ISO 2768 general tolerances, or a customer standard such as SASG K22. Our dies hold 0.005 mm positioning, so the standard sets the acceptance rule and the capability sits behind it. Name the standard and revision in the RFQ and the quote comes back against it.

Yes. We stamp SUS301, SUS304 and SUS316L, and for parts that see moisture, cleaning or repeated handling, 316L is the usual call. Passivation restores the oxide layer after stamping and runs through an approved partner line. Tell us the cleaning chemistry and the corrosion test your product must pass, and the grade and finish follow from it.

We stamp the parts inside those assemblies, not the assemblies themselves: charging-connector contacts, terminal and contact blades, busbars and formed structural brackets from 0.05 to 3.0 mm copper, brass and stainless strip. Send the drawing for the part, and engineering confirms material, plating zone and tolerance.

Tooling is billed in milestones, tied to the stages of the die build rather than a single up-front payment. The exact milestone split is set in the quotation for your program, and production parts are invoiced separately from tooling.

Yes. Where the drawing calls out hardness, we verify it per lot against the named scale and standard, HV or HRC as specified, and for beryllium copper against the ASTM B194 or B196 class on the drawing. The reading goes into the lot record that ships with the parts.