Bipolar Plate Production Lines
Features
- From a single machine to a scalable series production line.
- Hydroforming, cutting, welding and straightening on one line.
- External high-pressure forming gives precise structures in material as thin as 50 µm.
- The hydroforming advantage: very homogeneous wall thickness across the whole channel section, where mechanical forming is heterogeneous.
- Ideal for pre-coated material: no friction on the water side.
- One operation with one tool, where mechanical forming needs a multi-stage tool.
- More than twenty years of research: over 100 bipolar plate designs realised and more than 125,000 plates produced.
Bipolar Plate Production Lines
Specifications / Models
Machine concepts
On the basis of the following machine concepts we find the optimum solution for you:
Our individual machines: Customized technology
Our Graebener® machines for forming, cutting, welding and straightening are ideally suited for manufacturing projects with clearly defined goals. Based on your specifications and with regard to the production parameters determined in our production laboratory, you will receive machines perfectly tailored to your needs including the necessary tools for the production of high-quality single or bipolar plates.
Turn our innovations into your competitive edge: e.g. with our combination of sandwich tool and Graebener® hydroforming press, which allows you to simultaneously form several plates per stroke.
In addition, we support you with our stack press in the technical testing of your fuel cell and electrolyzer stacks.
Growth as standard: With scalable production lines – from coil to finished single or bipolar plate
Thanks to our many years of experience in mechanical engineering, we are able to develop line concepts that can grow with time. With a view to your increasing quantities or changing component geometries, we develop production lines for single and bipolar plates that can be scaled precisely and sustainably. The modular design of our lines guarantees a cost-efficient expansion of your production line. From the very start, our concept accompanies you safely into the future.
We determine all necessary process parameters in advance in our Graebener® production laboratory and thus realize a fast start-up of your production lines on site.
Forming
We have developed our Graebener® forming presses especially for the economic production of metallic plates and have made it ready for series production.
With our sandwich tool, several plates can effortlessly be produced simultaneously per stroke, e.g. the cathode and anode side.
Cutting
With laser fusion cutting, we use a process that achieves a very high level of accuracy and quality.
And this is achieved without significant maintenance costs or tolerance problems due to tool wear.
This ensures fitting accuracy even for complex structures.
Welding
Not only do we form your bipolar plate for fuel cells and electrolyzers precisely. As an experienced technology and equipment partner, we are also at your side for the subsequent welding process.
As with cutting, we also use the advantages of laser technology here. Benefit from our many years of practical experience.
Straightening
Our specially developed and worldwide unique straightening machine offers for the first time the possibility to produce flat plates.
A necessary requirement for both economical stack production as well as high performance and durability of the stacks.
Stack Presses
With our technology we support the technical testing of your fuel cell or electrolysis stacks.
As a Strong Performance Partner for the Development of Your Single or Bipolar Plate Production, We Offer You the Following Advantages in Close, Constructive Cooperation:
- Analysis, modeling and optimization of your plate design
- Tool engineering
- Verification of the manufacturability of your plate design as well as production of smallest lot sizes and small series in the Graebener® production laboratory
- Analysis of the production steps from coil to finished single or bipolar plate
- Determination of requirements of individual production machines and necessary handling and automation systems
- Preparation of the technical specifications/specification sheets
- Creation of the 2D/3D line layout including installation plan
- Analysis of the interfaces between the respective line sections and to the primary control
- Preliminary planning of the foundations
- Assembly and start-up
- After sales service
Source: the manufacturer's product page
Product Description
From a single machine to a complete production line: the machines needed for hydroforming, cutting, welding and straightening are designed around your requirement. For larger and more complex projects, scalable and customisable series production lines are developed that run from metal strip or coil through to the finished bipolar plate.