PSU Sheet & Machined Frames for Alkaline Electrolyzers | JUTAI

Potential AWE Applications

JUTAIPSU® NA can be evaluated for:

• Electrolyzer stack frames
• Insulating frame plates
• Spacer rings
• Structural supports
• Manifold components
• Fluid-distribution components
• Gasket-support structures
• Separator-support components
• Electrical isolation components
• Sensor and connector housings
• Test-stack components
• Prototype electrolyzer parts

The material is not intended to replace electrodes, current collectors or conductive bipolar plates unless a validated conductive formulation is used.

Engineering Information Required

For material selection and quotation, please provide:

• Electrolyzer type: AWE, AEM or PEM
• Component name and function
• Electrolyte type
• KOH or electrolyte concentration
• Operating temperature
• Design pressure
• Stack-compression load
• Required electrical insulation
• Component dimensions
• Flatness and tolerance requirements
• Groove and sealing design
• Expected operating life
• Prototype or production quantity
• Drawing or 3D model

PSU Sheet Supply

JUTAIPSU® NA natural PSU sheets are available in thicknesses from 1 to 100 mm.

Standard lengths include 1,000 mm, 2,000 mm and 3,000 mm. Cut-to-size blanks and precision-machined components are available.

For complete technical properties, standard sheet sizes and theoretical weights, please refer to the JUTAIPSU® NA Natural PSU Sheet product page.

For complete material properties, available sheet sizes and theoretical weights, see the JUTAIPSU® NA Natural PSU Sheet Technical Data and Sizes.

CNC Machining Support

JUTAI provides:

• Material selection support
• Cut-to-size PSU blanks
• Controlled annealing
• CNC milling
• Sealing-groove machining
• Hole and port machining
• Surface finishing
• Flatness inspection
• Dimensional inspection
• Prototype production
• Small-batch production
• Component assembly support

Machining tolerance depends on component size, thickness, groove depth, flatness requirements and operating conditions.

JUTAI PSU Electrolyzer Frame Manufacturing Capability

JUTAI supplies large-format PSU sheets and CNC-machined insulating frames for alkaline water electrolyzers. Our in-house capabilities cover PSU sheet production, large-format machining, sealing-groove processing, dimensional inspection, prototypes and batch production.

Large-Format PSU Sheet Supply

JUTAI supplies natural PSU sheets in the following dimensions:

• Thickness: 1–100 mm

• Width: up to 1,250 mm

• Length: up to 3,000 mm

• Standard and cut-to-size dimensions

• Solvay PSU resin options

• Natural translucent color

Raw-material COA, batch traceability, TDS, COC, MSDS, RoHS and REACH documentation can be provided where applicable.

For general material properties, available thicknesses and standard sheet dimensions, visit our JUTAIPSU® NA Natural PSU Sheet product page.

You can also review our complete PSU Sheets, Rods and Machined Components product range.

Custom PSU Electrolyzer Frames

JUTAI manufactures PSU insulating frames and stack components according to customer drawings or samples.

Available machining features include:

• Frame contours

• Sealing and gasket grooves

• Electrolyte flow channels

• Inlet and outlet openings

• Bolt and positioning holes

• Recesses and stepped surfaces

• Manifold openings

• Insulating spacer plates

Natural PSU is an electrically insulating material. This page focuses on PSU insulating frames, spacer plates and structural stack components rather than conductive bipolar plates.

Customers requiring cylindrical supports, insulating sleeves, manifolds or turned components can also review our PSU Rod for Medical, Food and Industrial Equipment page for available PSU rod supply and CNC turning capabilities.

Large-Format and Five-Axis CNC Machining

Our large-format precision engraving equipment supports machining areas up to approximately 2,500 × 3,000 mm.

Multiple five-axis CNC machines are also available for components requiring:

• Complex geometries

• Inclined holes

• Multi-surface features

• Accurate groove positions

• Integrated flow channels

• Reduced repositioning

For suitable precision components, machining tolerances of up to ±0.005 mm can be evaluated.

The achievable tolerance depends on the component dimensions, thickness, geometry, clamping method, machining process and inspection requirements. A tolerance of ±0.005 mm does not automatically apply to the complete surface of a large electrolyzer frame.

Controlled Machining Process

Large PSU frames may develop internal stress when a significant amount of material is removed.

Depending on the component dimensions and tolerance requirements, JUTAI can use a controlled production process that includes:

1. Raw-material inspection

2. Sheet cutting

3. Rough machining

4. Stress relief or annealing where appropriate

5. Dimensional stabilization

6. Finish machining

7. Final inspection

8. Cleaning and protective packaging

This process can help improve dimensional stability for large frames, thin-wall components, deep sealing grooves and parts with strict flatness requirements.

Dimensional and Flatness Inspection

Finished PSU electrolyzer frames can be inspected according to customer drawings and agreed tolerances.

Available inspection support includes:

• Overall dimension inspection

• Finished thickness inspection

• Hole diameter inspection

• Hole-position inspection

• Groove width and depth inspection

• Flatness inspection

• Visual inspection

• Dimensional inspection reports

• Raw-material batch identification

The inspection method and acceptance criteria should be confirmed before production, especially for large frames and components with critical sealing surfaces.

Prototype and Batch Production

JUTAI supports different stages of alkaline electrolyzer development, including:

• Material evaluation samples

• Prototype PSU frames

• CNC machining trials

• Design-verification components

• Small-batch pilot production

• Medium-batch production

• Repeat production according to approved drawings

For new projects, prototype components should be tested under the actual electrolyte concentration, temperature, pressure, compression load and expected operating conditions before batch production.

Quality and Traceability

JUTAI has more than 15 years of experience in high-performance plastic material supply and precision machining.

Our manufacturing and quality capabilities include:

• ISO 9001:2015 quality management system

• Solvay PSU resin options

• Raw-material COA

• Batch traceability

• Dimensional inspection reports

• CNC machining records

• Prototype and batch-production support

• Worldwide export experience

JUTAI has supported hydrogen-energy projects involving PSU sheets, insulating electrolyzer frames and customized engineering plastic stack components for international customers.

Customer drawings, samples and project information are treated as confidential unless publication has been specifically authorized.

Why Choose JUTAI?

• PSU sheets from 1 mm to 100 mm thick

• Sheet sizes up to 1,250 × 3,000 mm

• Large-format machining area up to approximately 2,500 × 3,000 mm

• Multiple five-axis CNC machining centers

• Tolerances up to ±0.005 mm for suitable precision features

• Sealing-groove and flow-channel machining

• Rough machining, stress relief and finish machining

• Flatness and dimensional inspection

• Prototype and batch-production support

• Raw-material COA and batch traceability

• More than 15 years of engineering plastic experience

• ISO 9001:2015 certified quality management system

Information Required for a Quotation

Please provide:

• Component drawing

• Frame dimensions

• Sheet thickness

• Required quantity

• Dimensional tolerances

• Flatness requirement

• Sealing-groove dimensions

• Hole-position requirements

• Electrolyte type and concentration

• Continuous and maximum operating temperature

• Operating pressure

• Compression load

• Required PSU resin grade

• Inspection-report requirements

• Destination country

Our engineering team will evaluate the PSU sheet size, machining process, stress-control requirements, inspection method and production feasibility before quotation.

Material suitability must be confirmed according to the actual electrolyte concentration, operating temperature, pressure, compression load, component dimensions and expected service life.

This page focuses specifically on PSU sheet and CNC-machined insulating frames for alkaline water electrolyzers.

For a broader comparison of PSU, PEEK, PEI and PPS in AWE and PEM equipment, visit our Engineering Plastics for Hydrogen Electrolyzer Components guide.

Frequently Asked Questions

Is PSU suitable for alkaline water electrolyzers?

Selected PSU grades can be suitable for AWE frames and insulating structural components. Suitability must be verified according to electrolyte concentration, temperature, pressure and compression load.

Can natural PSU be used as a conductive bipolar plate?

No. Natural unfilled PSU is electrically insulating. Conductive bipolar plates require a validated conductive formulation and separate electrical and electrochemical testing.

What electrolyzer components can be made from PSU?

Potential components include frames, insulating plates, spacers, support structures, manifolds, gasket supports and separator-support components.

Is PSU resistant to KOH?

Selected PSU grades can provide useful resistance in alkaline aqueous environments, but resistance depends strongly on KOH concentration, temperature, mechanical stress and exposure time. Customer-specific testing is required.

Can JUTAI machine complete electrolyzer frames?

Yes. JUTAI can evaluate frame machining, sealing grooves, bolt holes, fluid passages, flatness and dimensional inspection according to customer drawings.

Request an AWE Material Evaluation

Please send:

• Component drawing
• Electrolyzer type
• Electrolyte and concentration
• Operating temperature
• Design pressure
• Compression load
• Required tolerance and flatness
• Prototype quantity
• Annual demand
• Destination country