Albania Algeria Andorra Argentina Australia Austria Bahrain Belarus Belgium Bolivia Bosnia & Herzegovina Brazil Brunei Bulgaria Cameroon Canada Chile China Colombia Costa Rica Croatia Cyprus Czechia Denmark Ecuador Egypt Estonia Finland France Georgia Germany Gibraltar Greece Grenada Hong Kong SAR China Hungary Iceland India Indonesia Ireland Israel Italy Japan Jordan Kazakhstan Latvia Liechtenstein Lithuania Luxembourg Madagascar Malaysia Malta Mexico Moldova Monaco Montenegro Morocco Namibia Netherlands New Zealand Nicaragua Nigeria Norway Oman Pakistan Panama Paraguay Peru Philippines Poland Portugal Puerto Rico Qatar Romania Saudi Arabia Serbia Singapore Slovakia Slovenia South Africa South Korea Spain Sri Lanka Sweden Switzerland Taiwan Thailand Tunisia Türkiye Ukraine United Arab Emirates United Kingdom United States Uruguay Venezuela Vietnam

Brands Unlock Free AI Search

Liquid-Cooled Stack Test System - quickCONNECTfixture short stack 5.25/125 LC

The qCf Stack 5.25/125 LC is a pneumatically pressurized test system designed for multi-cell PEM fuel cell and PEM water electrolysis stack evaluation.

This setup enables reproducible characterization of flow fields, CCMs, MEAs, GDLs, GDEs, membranes, and other electrochemical core components under well-controlled thermal, mechanical, and media-supply conditions.

With its tool-free stack replacement, direct liquid-cooling system, and compatibility with laboratory and test-bench environments, the qCf Stack 5.25/125 LC is ideal for research, development, and quality assurance workflows requiring high precision and repeatability.

Key features

qCf Stack 5.25/125 LC Fixture

Pneumatically pressurized frame for reproducible stack compression

Quick, tool-free replacement of the sF stack (stackFixture)

Suitable for laboratory work and automated test-bench integration

Continuously adjustable contact pressure depending on cell area and flow-field material

Direct liquid cooling/heating integrated into the stack interface

Gold-plated contact plates with integrated media feed

Electrical connection via 8 mm MC low-resistance socket

Supports a wide range of test media (H₂, reformate, methanol, ethanol, air/O₂, etc.)

stackFixture (sF stack)

Stack unit for 2–5 cells, compatible with qCf Stack 5.25/125 LC

Holds MEAs, CCMs, GDLs, GDEs, membranes, and other PEMFC/PEMWE components

Tool-free closure via mounting aid and torque screws

Integrated temperature sensor ports (Ø1.5 mm) and voltage-tap ports (Ø1 mm) for each cell

Flow fields:

PEMFC: 5× serpentine, graphite
PEMWE: parallel, titanium
Custom designs available

Compact, thermally stable EP GC 308 housing with EPDM sealing

Ground-flat, gold-plated contact surfaces for low-resistance operation

Technical specifications

qCf Stack 5.25/125 LC Fixture

Active area: 25 cm² (50 × 50 mm) (other materials/sizes on request)

Operating temperature: –20 to 140 °C (depending on MEA and coolant medium)

Load current: up to 5 A/cm²

Cooling/heating connections: 8 mm Swagelok or compatible

Media connections (anode/cathode): 8 mm Swagelok (material 1.4571)

Sealing elements: Viton

Recommended cooling media: ethanol, deionized water, glycol

stackFixture (sF stack)

Number of cells: 2–5

Maximum component thickness: 0.9 mm

Maximum contact pressure: 0.5 – 2.5 N/mm²

Counterpressure capability: up to 2 bar (max. Δp = 300 mbar)

Operating temperature: –20 to 140 °C

Housing material: EP GC 308

Sealing elements: EPDM

Flow-field material: graphite (FC), titanium (PEMWE)

Fuel compatibility: H₂, reformate, methanol, ethanol

Oxidant compatibility: air, O₂, H₂O₂

Liquid-Cooled Stack Test System - quickCONNECTfixture short stack 5.25/125 LC