Etched Bipolar Plate for PEM Electrolyzer & Fuel Cell Stainless Steel
Product Details
| Flow Field: | Customized | Application: | PEM Fuel Cell |
|---|---|---|---|
| Product Name: | Etched Bipolar Plate | Surface Finish: | Burr-free |
| Tolerance: | +/- 0.05mm | Electrolyzer: | Yes |
| Processing Technology: | Photo Chemical Etching | Material: | Stainless Steel,Titanium Or Customized |
| Thickness: | 0.5 Mm - 3.0 Mm | Min Line Width: | 0.01 Mm |
| OEM: | Supported | Production: | Mass Production |
| Highlight |
stainless steel bipolar plate,PEM electrolyzer bipolar plate,fuel cell metallic plate |
||
Product Description
Etched Bipolar Plate for PEM Electrolyzer & Fuel Cell Stainless Steel
Product Overview
Xinhaisen manufactures high-precision etched bipolar plates for hydrogen fuel cells and PEM electrolyzers using advanced photo chemical etching technology. Compared with conventional machining, chemical etching enables burr-free micro flow channels, high dimensional accuracy, and excellent repeatability without introducing mechanical stress.
What is Chemical Etching?
Chemical etching (also known as photochemical machining) is a subtractive manufacturing process that uses chemical solutions to dissolve metal precisely. Unlike traditional stamping or machining, etching creates burr-free, stress-free plates without mechanical force. This allows for complex micro-flow channel designs, tight tolerances, and rapid prototyping, making it ideal for the intricate structures required in bipolar plates.
Product Features
-
High Precision: Achieve micro-channel widths as fine as 0.015mm and uniform flow field depths with an accuracy of ±0.03mm.
-
Burr-Free & Stress-Free: Unlike mechanical punching, our process leaves no burrs or micro-cracks, ensuring the longevity and safety of the membrane electrode assembly (MEA).
-
Ultra-Thin Capabilities: Process metals as thin as 0.5mm, enabling lighter stacks and higher power density.
-
Complex Geometries: Capable of producing intricate flow field patterns (e.g., serpentine, parallel, pin-type) to suit specific gas diffusion requirements.
-
Material Versatility: Compatible with various metals including stainless steel (304, 316L), titanium, and other corrosion-resistant alloys.
-
Consistency: High-volume repeatability ensures that every plate in your stack performs identically.
✔ High Precision Chemical Etching
✔ Burr-Free Micro Flow Channels
✔ Excellent Flatness
✔ No Mechanical Stress
✔ Tight Tolerance
✔ Complex Flow Field Patterns
Product Specifications
| Parameter | Specification |
| Product Name | Etched Bipolar Plate |
| Material Options | Stainless Steel (304, 316L), Titanium, Copper, Alloy |
| Material Thickness | 0.02 mm – 1.5 mm |
| Min. Line Width | 0.015 mm |
| Min. Aperture (Hole) | 0.03 mm |
| Dimensional Tolerance | ±0.03 mm (Uniformity) |
| Lead Time | Fast prototyping (5-7 days); Mass production available |
| Surface Finish | As etched, passivated, or custom surface treatment |
| MOQ | Negotiable |
| Process | Chemical Etching |
Note: Custom specifications are available upon request.
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
Our Advantages
-
Rapid Turnaround: With an efficient production setup, we handle urgent orders and large-volume demands without compromising quality.
-
Cost Efficiency: Our chemical etching process eliminates high tooling costs (no expensive hard tooling required), making it cost-effective for both prototyping and mass production.
-
Expertise in Thin Metals: Specializing in thicknesses down to 0.5mm, we offer solutions for lightweight stack designs that maximize energy density.
-
Quality Assurance: We ensure high uniformity across thousands of pieces, critical for stable stack performance.
Applications
Bipolar plates manufactured by Xinhaisen are suitable for:
-
Proton Exchange Membrane Fuel Cells (PEMFC): Used in automotive (cars, trucks), drones, and stationary power systems.
-
Water Electrolyzers: For green hydrogen production.
-
Portable Power Systems: Compact, high-efficiency energy devices.
-
Aerospace & Aviation: Lightweight components for air mobility.
PEM Fuel Cells
PEM Electrolyzers
SOEC Systems
Hydrogen Production
Hydrogen Storage Systems
FAQ
- Q: What materials do you recommend for bipolar plates?
A: We typically recommend Stainless Steel (316L) for its excellent corrosion resistance and cost-effectiveness, or Titanium for applications requiring higher strength-to-weight ratios. - Q: Can you achieve the tight tolerances required for sealing?
A: Yes. Our etching process maintains a uniformity of ±0.01mm, ensuring that the plates mate perfectly with gaskets to prevent gas leakage. - Q: Do you charge high tooling fees for custom designs?
A: No. One of the major benefits of chemical etching is the low tooling cost. We use digital tooling, allowing us to adjust flow field designs quickly without expensive physical molds. - Q: What is the lead time for a prototype?
A: Typically, prototypes can be delivered within 5 to 7 days after design confirmation. - Q: Can you handle large-scale production?
A: Absolutely. We are equipped to handle massive, high-volume orders while maintaining strict consistency across all plates.


Welcome to contact us at any time!
Product Highlights
Xinhaisen manufactures precision etched bipolar plates for PEM fuel cells and PEM electrolyzers. Custom flow field designs, stainless steel and titanium materials, tight tolerances, burr-free surfaces and rapid prototyping for hydrogen energy applications.
Precision-Etched Titanium Flow Plates for Heat Exchangers with High-Corrosion Resistance
Precision-Etched Titanium Flow Plates for Heat Exchangers with High-Corrosion Resistance Flow Plate Overview Xinhaisen Technology specializes in manufacturing high-precision chemically etched flow plates for plastic injection molding, die casting, and other industrial applications. Our flow plates ...
Precision Titanium Etching Services ISO Certified Metal Fabrication
13+ years expertise in titanium etching for aerospace, medical & industrial applications. ISO/IATF-certified , full-cycle solutions with competitive lead times. Get instant quote! Titanium Etching Services for High-Performance Applications Industries We Serve Our titanium etching solutions power ...
Custom Stainless Steel Bookmark Souvenir Crafts By Photo Chemical Etching
Custom Stainless Steel Bookmark Souvenir Crafts By Photo Chemical Etching Descriptions of Stainless Steel Bookmark Souvenir Crafts: Xinhaisen, specializing in precision metal fabrication through chemical etching for 13 years, addresses evolving design challenges in modern crafts. As design ...
Micro Needle Rollers For Stainless Steel Via Metal Etching Service 0.005mm Tolerance
Micro Needle Rollers for Stainless Steel Material via Metal Etching Fabrication Beauty Needle Micro Needles Rollers XHS produces bio-compatible micro-needles through etching, which feature ultra-smooth and sharp edges. Using advanced etching technology, these micro-needles achieve higher quality and ...
Please use our online inquiry contact form below if you have any questions, our team will get back to you as soon as possible.