- +8613603056883
- Dongguan City, Guangdong Province, China.
TMNetch is your reliable partner for bipolar plates, bridging the gap between design development and mass production. Using advanced photochemical etching, we create highly accurate flow channels and complex geometries. Our dual-depth channel design enables optimized flow field design. We support our customers from initial prototype to mass production, meeting the demands of critical applications.
The process of chemical etching offers distinct advantages for bipolar plate manufacutring including:
Bipolar plates have precise flow channels that ensure even distribution of gases and coolant, which improves the performance of the fuel cell.
The smooth, uniform surface plates maintain consistent current flow across the plate, improving stack reliability.
Etched bipolar plates are resistant to acidic and humid environments, hence they last longer.
For industrial applications, such as automotive, etched plates can be thinner and lighter while maintaining strength.
You can create complex channel patterns or dual-depth flows that optimize performance for different fuel cell types.
There is no mechanical deformation during the etching process.
TMNetch delivers precise plates with custom channels. We offer:
You get the design freedom without limitations. We can etch your unique channel patterns on both sides of the plate.
Modify channel patterns at any stage of development without tooling penalties or production delays.
We apply platinum coating for cathode sides and MMO coating for anode sides, or any combination your application requires.
With over a decade of experience, our engineering team provides professional design recommendations based on real-world performance data.
You get the design freedom without limitations. We can etch your unique channel patterns on both sides of the plate.
Modify channel patterns at any stage of development without tooling penalties or production delays.
We apply platinum coating for cathode sides and MMO coating for anode sides, or any combination your application requires.
With over a decade of experience, our engineering team provides professional design recommendations based on real-world performance data.
We apply platinum coating for cathode sides and MMO coating for anode sides, or any combination your application requires.
With over a decade of experience, our engineering team provides professional design recommendations based on real-world performance data.
You can create complex channel patterns or dual-depth flows that optimize performance for different fuel cell types.
You can create complex channel patterns or dual-depth flows that optimize performance for different fuel cell types.
At TMNetch, we offer a range of metals to meet the exacting fuel cell standards.
✅ Stainless Steel (SS304, SS316L, SS310S)
✅ Titanium (Grade 1, Grade 2)
✅ Aluminum Alloys (1060, 3003, 5052)
✅ Copper (C11000)
✅ Nickel and Specialty Alloys
Our photo etching capabilities solve the challenges that traditional manufacturing can’t. Here is a glance at our technology:
✅ Dual-Depth Channel Etching: Create two different channel depths on the same surface in one production cycle. For example, the total thickness of bipolar plates is 2.0mm, 0.6mm and 0.4mm deep channels can be etched on one side, and the 0.5mm deep channel can be etched on the other side.
✅ Precision Surface Coating: Apply different coatings to each side of your plate. We offer platinum plating on one surface for the cathode side, MMO coating on the other for the anode.
✅ Laser Welding Integration: Achieve clean, thin sealing grooves through laser welding.
✅ Complex Pattern Capabilities: Our process handles intricate geometries that would be impossible to achieve with stamping.
TMNetch is an industrial leader in the field of chemical etching. With over a decade of experience and global clients, we understand the nuances of manufacturing.
Proven track record in chemically etched components for fuel cell and energy systems.
Mature, repeatable etching workflows suited for prototyping and long term volume production.
Tight tolerance control maintains uniform results across batches and extended production runs.
Direct access to engineers for design optimization, tolerance review, and fast production feedback.
We’re here to give you a personalized solution for your project. Kindly fill in the below form to reach us and get exclusive offers!
You’re welcome to visit anytime during our working hours. Please email us in advance at lydia.sales1@tmnetch.com or tmnetch@gmail.com, and we’ll arrange to pick you up from Shenzhen, Guangzhou, or Hong Kong airport.
We are a factory.
If the goods are in stock, it usually takes 5–10 days. If the goods are not in stock, it generally takes 15–20 days, depending on the order quantity.
Yes, we can provide samples free of charge. However, the customer is responsible for the shipping cost.
For orders ≤ $2,000 USD, full payment in advance is required. For orders ≥ $2,000 USD, 50% T/T in advance and the balance before shipment.
