PEM Pure Hydrogen Generator


 Custom made electrical item NOT Returnable or Refundable

This item makes 99.99 percent PURE Hydrogen.

There are two types of Hydrogen Generators - the PEM design and the Hoffman design.  For more info, see - which Hydrogen Generator is best for the job ??  The PEM design uses a membrane and electronic controller - and the Hoffman design is a mechanically separated gas design.  This is the PEM type design. 

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This product is eligible for a lifetime warranty ONLY when purchased as part of a complete freefuelsystem generator and timely fees remain paid, if not there is NO warranty.  It requires support sensors and electronics and this is ONLY the PEM stack itself.  With the proper power regulation and sensors you will immediately destroy this item.  If you are interested in the freefuelsystem follow this link instead =>

PEM Electrolyzer Stacks is an advanced patented product, which is lower voltage and higher efficiency, energy-saving and of environmental protection, producing hydrogen and oxygen through the electrolysis of pure water without adding alkali

The proton exchange membrane (PEM), which only allows water and positive ions to cross between compartments. A PEM electrolyzer utilizes a solid polymer electrolyte (SPE) to conduct protons from the anode to the cathode while insulating the electrodes electrically.  Thus the PEM and SPE technology are eh same thing. The membrane also serves as the electrolyte in the cell, eliminating the need for hazardous liquid electrolytes such as concentrated potassium hydroxide. PEM water electrolysis simply splits pure deionized water (H2O) into its constituent parts, hydrogen (H2) and oxygen (O2), on either side of this membrane. When a DC voltage is applied to the electrolyzer, water fed to the anode, or oxygen electrode, are oxidized to oxygen and protons, while electrons are released. The protons (H+ ions) pass through the PEM to the cathode, or hydrogen electrode, where they meet electrons from the other side of the circuit, and are reduced to hydrogen gas. The two reactions that occur in the cell are as follows:

1. 2H2O -> 4H+ + 4e- +O2
2. 4H+ + 4e- -> 2H2

Thus, the only possible components of the streams are hydrogen, oxygen and water moisture, as shown below.



• Redundant renewable energy transformation and storage
• Lab experiment and teaching
• Laboratory analytic instrument
• Hydrogen healthy care industrial
• Hydrogen beauty industrial
• Fuel for special field
• Hydrogen supply for fuel cell
• Other pure H2 application field

Product Advantages:

• Produce hydrogen by electrolysis pure water without adding alkaline
• No corrosion or pollution
• High hydrogen purity
• Low electrolyzer cell resistance
• No heat and long desiccant replacement cycle
• Lower power consumption and high electrolysis efficiency

Product Dis-advantages:

• Cannot be used in freezing climates or allowed to overheat
• MUST use de-ionized or pure distilled water or the PEM stack will clog with precipitates of the minerals of the hard water.

Key Features:

Model Unit HPC-PEM-60 HPC-PEM-120 HPC-PEM-180 HPC-PEM-240 HPC-PEM-300 HPC-PEM-500 HPC-PEM-1000
Cells - 1 2 3 4 1 2 4
Stack Diameter mm 85 85 85 85 138 138 138
H2 Flow Rate mL / min 0 - 60 0 - 120 0 - 180 0 - 240 0 - 300 0 - 500 0 - 1000
O2 Flow Rate mL /min 0 - 30 0 - 60 0 - 90 0 - 120 0 - 150 0 - 250 0 - 500
Voltage V (DC) 2 (9A) 4 (9A) 6 (9A) 8 (9A) 2 (45A) 4 (36A) 8 (36A)
Membrane Type - Nafion PFSA
Titanium sintering carpet
Precious metal electrode
Needs deionized or re-distilled water
Water Resistivity: >1 MΩ*cm
Water Conductivity: <1 us/cm

General lead time of two weeks to be expected.


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Weight: 7 lb
Price: $1.00
See chart for sizes available
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