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This article will teach you in detail how to build a PEM hydrogen generator.Learn how to create your own PEM electrolyzer at home with this comprehensive guide. Follow these step-by-step instructions to build an efficient and eco-friendly hydrogen generator.
Here is a video and text of making a PEM electrolyser.Of course, there is an easier way to get a PEM hydrogen generator.
Do you want to know the difference between pem hydrogen generator and alkaline hydrogen generator?

The names of the components of the PEM electrolyzer from top to bottom are:

  1. Bolt
  2. Compression Plate
  3. Insulation Layer
  4. Bipolar Plates
  5. Insulation Rubber Ring
  6. Large-hole Titanium Mesh
  7. Medium-hole Titanium Mesh
  8. Small-hole Titanium Mesh
  9. Titanium Felt
  10. PEM Proton Membrane
  11. Titanium Felt
  12. Small-hole Titanium Mesh
  13. Medium-hole Titanium Mesh
  14. Large-hole Titanium Mesh
  15. Insulation Rubber Ring
  16. Electrode Plate
  17. Insulation Layer
  18. Compression Plate

PEM Hydrogen Generator 3D Model

Loading the model takes some time, please be patient.

Prepare required parts

  • 1. Aluminum alloy plate
  • 2. Insulated gasket 
  • 3. Titanium alloy positive and negative electrode plate
  • 4. Titanium mesh
  • 5. Silicone gasket
  • 6. Microplate
  • 7. Imported DuPont N117 PEM 
  • 8. Screw  
  • 9. Gasket  
  • 10. Nut  
  • 11. Gas pipe connector
Prepare required parts
Prepare required parts

Step 1

  1. Select an aluminum alloy plate as the down-pressing board.
  2. Insert the prepared screws.
  3. Install the insulated gasket.

Pay attention to the position of water inlet and air outlet.

Install the insulated gasket
Install the insulated gasket

Step 2

  • Install titanium alloy positive and negative electrode plates.
  • Install the sealing silicone gasket.
  • Install titanium mesh.
  • Install the microplate.

Titanium mesh shall be placed in the order of high 、medium、 small density.
Place them neatly.
Align the titanium mesh when placing.

Install the microplate.
Install the microplate.

Step 3

  • Install DuPont N117 PEM.

The PEM shall be installed carefully to avoid damage.

Install DuPont N117 PEM
Install DuPont N117 PEM

Step 4

  • Install the microplate.
  • Install the studio sealing silicone gasket.
  • Install titanium mesh.
  • Install titanium alloy positive and negative electrode plates.
  • Install the sealing silicone gasket.
  • Install the second titanium mesh.

Titanium mesh shall be placed in the order of high 、medium、 small density.
Align the microplate when placing.

Install titanium mesh
Install titanium mesh

Step 5

  • Install the microplate.
  • Install DuPont N117 PEM.
  • Install the microplate.
  • Install the sealing silicone gasket.
  • Install titanium mesh.
  • Install titanium alloy positive and negative electrode plates.
  • Install insulated gasket.
  • Install aluminum alloy plate.
  • Install gasket and nut.
  • Tighten the screws.

Base on the standard compactness and torsion.

Tighten the screws
Tighten the screws

Step 6

  • Install the air pipe connector and tighten.
  • Installation completed.

water inlet, hydrogen outlet and oxygen outlet shall be distinguished.

nstall the air pipe connector and tighten
install the air pipe connector and tighten

Test after Assembly

  • Check whether there is resistance and whether there is short circuit between electrode and pressing plate.
Test after assembly
Test after assembly


  • Connect to water pump
  • Connect the air pipe
  • Connect to output bus
Connect to output bus
Connect to output bus

Connect to Power

  • The output bus plug is connected to the transformer.
  • The control transfer line connector is connected to the transformer.
  • The signal line connector is connected to the transformer.
  • The input bus plug is connected to the transformer.
  • Connect the water level sensor line of the control transfer line to the tank.
  • Connect the water pump line controlling the transfer line to the water pump.
  • Unscrew the upper cover of water gas separator.
The signal line connector is connected to the transformer
The signal line connector is connected to the transformer

Power on Test

  • Pour in purified water.
  • Turn on the switch.
  • During inspection.

1. Whether hydrogen and oxygen are normal(hydrogen outlet) (oxygen outlet).
2. Check whether the voltage and current are normal.
3. Check for water leakage.

Whether hydrogen and oxygen are normal
Whether hydrogen and oxygen are normal

If there is no problem in the test, installation is completed.

This is the complete content of how to make a PEM electrolyzer. We also have a Youtube channel. If you like our content, please follow our channel: https://www.youtube.com/@senzahydrogen. If you have any questions, you can leave us a message in the comment section or send us an email. We are committed to using hydrogen energy to solve the conflict between future energy and environmental protection. We strive to contribute to environmental protection.

Understanding PEM Hydrogen Generators

Introduction to PEM (Polymer Electrolyte Membrane) hydrogen generators PEM hydrogen generators, also known as PEM electrolyzers, use a solid polymer electrolyte (PEM) to produce hydrogen through the process of water electrolysis. By applying an electric current, water molecules are split into hydrogen and oxygen, which can then be collected and used as fuel or for other applications. PEM electrolyzers have gained popularity due to their high efficiency, safety, and ability to produce pure hydrogen.

The role of PEM electrolyzers in hydrogen production PEM electrolyzers play a crucial role in hydrogen production, particularly in the context of renewable energy systems. They offer a sustainable way to produce hydrogen using electricity from solar panels, wind turbines, or other renewable sources, which can then be stored and utilized as needed. This helps to address the issue of intermittent renewable energy supply and enables the production of hydrogen with a low carbon footprint.

Benefits of using PEM technology compared to traditional methods PEM technology offers several advantages over traditional electrolysis methods, such as alkaline electrolyzers, including:

  • Higher efficiency: PEM electrolyzers can achieve higher energy conversion efficiencies compared to alkaline electrolyzers.
  • Faster response time: PEM electrolyzers can ramp up and down quickly, making them well-suited for use with intermittent renewable energy sources.
  • Greater purity: PEM electrolyzers produce hydrogen with higher purity levels, which is crucial for certain applications, such as fuel cells.
  • Compact design: Due to their solid polymer electrolyte, PEM electrolyzers can be designed to be more compact and lightweight compared to their alkaline counterparts.

Choosing the right PEM membrane, such as the DuPont N117 membrane Selecting the appropriate PEM membrane is essential for achieving optimal performance and longevity in your hydrogen generator. One popular choice is the DuPont N117 membrane, which offers a balance of durability, proton conductivity, and gas barrier properties. Other factors to consider when choosing a PEM membrane include cost, availability, and compatibility with the other components of your electrolyzer system.

Troubleshooting and Optimizing Your PEM Electrolyzer

Identifying common issues Some common issues with PEM electrolyzers may include membrane degradation, electrode corrosion, gas leaks, and insufficient hydrogen production. Regularly inspect the electrolyzer components for signs of wear or damage and address any issues promptly to maintain optimal performance.

Optimizing efficiency To optimize the efficiency of your PEM electrolyzer, ensure that the membrane, electrodes, and bipolar plates are clean and free of contaminants. Regularly check the power supply and control systems to ensure they are functioning correctly and providing the appropriate current and voltage to the electrolyzer cell.

Maintaining safety Ensure that your PEM electrolyzer is properly ventilated to prevent the buildup of hydrogen and oxygen gases, which can pose an explosion risk. Regularly inspect all connections for leaks and address any issues immediately. Follow all safety guidelines and recommendations provided by the manufacturer or other experts in the field.

Practical Applications of Hydrogen Generators

Using hydrogen generators in vehicles and homes Hydrogen generators can be used in vehicles and homes to provide a clean, sustainable source of energy. In vehicles, hydrogen can be used to power fuel cells, which generate electricity to drive electric motors. In homes, hydrogen can be used for heating, cooking, or even to generate electricity using a fuel cell system.

The potential of hydrogen as an alternative fuel source Hydrogen has significant potential as an alternative fuel source due to its abundance, high energy content, and the fact that it produces only water as a byproduct when burned or used in a fuel cell. This makes hydrogen an attractive option for reducing greenhouse gas emissions and combating climate change.

Future developments and innovations in hydrogen technology Advancements in hydrogen technology, such as improved electrolyzer efficiency, lower-cost production methods, and better storage solutions, will continue to make hydrogen a more viable alternative fuel source. As the world shifts toward cleaner and more sustainable energy sources, hydrogen is expected to play an increasingly important.

How does PEM hydrogen generator work

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  1. Muhammad Hafeez Ullah says:

    I love new technologies

  2. george csaki says:

    yes do you haven for sale that makes 2 liter a minute

    thank you George