OpeningYour bipolar plate drawing is the starting point. We turn it into a stamped part with verified dimensions before shipment. No guesswork. No rework on your end.We are BQUQ, a
Precision Hydrogen Fuel Cell Bipolar Plates | Custom Metal Stamping
OpeningYour bipolar plate drawing is the starting point. We turn it into a stamped part with verified dimensions before shipment. No guesswork. No rework on your end.We are BQUQ, a precision manufactu
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Your bipolar plate drawing is the starting point. We turn it into a stamped part with verified dimensions before shipment. No guesswork. No rework on your end.
We are BQUQ, a precision manufacturing factory in Dongguan, China. We have run metal stamping lines for 20 years. Our engineers check every critical dimension against your CAD file. We send you a full inspection report before the parts leave our floor.
Tolerance: ±0.05 mm on critical features, ±0.1 mm general
Lead time: 10–15 working days for prototypes, 20–25 for production runs
Process: progressive die stamping, hydroforming, laser cutting for prototypes
Specifications
Parameter
Value
Notes
Materials
SS316L, SS304, Ti Gr1/Gr2, Ni201, Ni203
0.05–0.3 mm sheet thickness standard
Process
Progressive die stamping, hydroforming
Dies made in-house, 3D-verified
Tolerance
±0.05 mm critical, ±0.1 mm general
Cpk ≥ 1.33 on key features
Surface finish
Ra 0.4–0.8 µm on sealing surfaces
Optional coating: TiN, gold, carbon
Channel depth
0.3–1.0 mm
Width-to-depth ratio per your design
Burr height
≤ 0.03 mm
Deburred on both sides
Flatness
≤ 0.1 mm over 100 mm length
Checked with CMM
Batch size
1–100,000+ pieces
No MOQ, tooling amortized per order
Lead time
10 days prototype, 20 days production
Expedite available for urgent builds
Inspection
CMM, optical profiler, leak test
Report included per batch
Three reasons buyers send us their drawings
1. Batch-traceable quality. Every lot gets a unique number. We record material heat number, die settings, and inspection results for that batch. If you have a field failure, we trace it back to the exact run. You get a PDF report with each shipment.
2. Inspection report per batch. We do not just stamp and ship. We measure channel depth, plate flatness, and sealing surface roughness on a CMM. You receive the raw data, not a summary. This is standard, not a paid extra.
3. One factory for CNC + stamping + spring + heatsink. Your bipolar plate may need a welded spring contact or a machined manifold block. We do all of it under one roof. No third-party coordination, no shipping delays between vendors. Your drawing goes to one engineering team.
Where these parts are used
Our stamped bipolar plates go into real systems, not just lab demos.
PEM fuel cells for stationary power. Backup generators for telecom towers and data centers. Plates run at 60–80 °C, need consistent flatness to seal over 10,000+ hours.
Portable fuel cell stacks. Drones and small APUs. We stamp thin 0.1 mm titanium plates to keep weight down while holding gas-tight channels.
Automotive fuel cell stacks. Prototype and low-volume runs for electric vehicle range extenders. Our no-MOQ policy lets OEMs validate 50 plates before committing to 50,000.
Electrolyzers. Reverse operation, same plate geometry. We handle the thicker 0.2–0.3 mm stainless variants that resist oxygen-side corrosion.
Q: Do you really have no MOQ?
A: Yes. You can order 1 piece for fit check or 100,000 for production. Tooling cost is quoted separately, but we amortize it over your first production order if you commit.
Q: What tolerance can you hold on stamped plates?
A: ±0.05 mm on channel depth and critical sealing surfaces. General dimensions are ±0.1 mm. We verify with CMM and include the report. If your design needs tighter, we switch to hydroforming or CNC post-processing.
Q: What is your lead time for a prototype?
A: 10–15 working days from drawing approval. This includes die making, first article inspection, and shipping. Production runs take 20–25 days. We can rush a single piece in 5 days for a premium.
Q: Can you provide material certificates?
A: Yes. We supply mill certificates for every coil or sheet used in your batch. We also provide a chemical composition report and mechanical property test data on request. All traceable to the heat number.
Send your drawing
Email your STEP or PDF drawing to sc@bquq.com. Our engineers review it within 4 hours. You get a firm quote in 12 hours — including tooling cost, unit price, and lead time.
Prefer to talk? WhatsApp us at +86 13713157787. We answer in English, Chinese, or German.
Custom metal stamping made in China does not mean cutting corners. It means precision manufacturing with full traceability. Send us your drawing and see the difference.
