Commonwealth Automation

Fuel Cell Presses

Fuel Cell Presses

Strap Welding Stack Assembly Machines

Automatic, Universal Strapping Press with Laser Welding

  • Servo press holds precise pressure up to 60kN as stack compresses
  • Straps are automatically cut, formed and welded
  • Supports tooling sets for a wide range of stack sizes
  • Optional custom tooling includes:
    • Upper & Lower interface tooling
    • Proprietary strap feeding, tensioning and forming system to suit strap material
  • Positively engages docking transfer cart (sold separately) for repeatability in loading & unloading of pressurized stack.
Automatic, Universal Strapping Press with Laser Welding

Stack Assembly Servo Press with Laser Welding

  • Dual-servo press delivers up to 60kN of constant pressure
  • Flexible design accommodates a number of programmable stack heights for one stack design
  • Strap forming is fully automatic and simultaneous
  • Straps are easy to load with programmable stops
  • Stack assemblies are easily loaded and unloaded
  • Suited to laser weld units with high availability
  • Fully light sealed enclosure with internal lighting
  • Upper tooling retracts for operator clearance
  • Automatic door includes sensitive safety bumper
Stack Assembly Servo Press with Laser Welding

Stack Assembly Servo Pivot Press

  • Servo press, able to hold constant force up to 80kN as stack compresses
  • Tilts from vertical to horizontal for transportation, loading through doorways, etc.
  • Optional custom tooling includes:
    • Strap insertion clamps
    • Proprietary strap-tensioning and forming system
    • Integrated weld head
    • Dry leak-testing
    • Removable alignment clamps
  • Control pedestal includes 2-handed cycle start switches for operator safety
Stack Assembly Servo Pivot Press

Large Stack Assembly Press with Resistance Welding Option

  • Servo press holds precise pressure as stack compresses
  • Capacity options from 60kN to 100kN
  • Press body designed to accommodate your alignment needs
  • Powered pivot from horizontal to vertical
  • Custom tooling options includes:
    • Strap insertion clamps
    • Innovative strap-tensioning and forming system
    • Integrated weld head
    • Leak-testing ports
    • Removable containment
    • Twist allowance for 3-point datum
    • Manual or Automatic Indexing
  • Control pedestal includes 2-handed cycle start switches for operator safety
  • Can be shipped in compact configuration
Large Press with Resistance Welding

Stack Assembly Press with Resistance Welding

  • Servo press holds precise pressure up to 50kN as stack compresses
  • Optional custom tooling includes:
    • Strap insertion clamps
    • Proprietary strap-tensioning and forming system
    • Integrated weld head
    • Dry leak-testing
    • Removable alignment clamps
  • Hydraulic pivot from horizontal to vertical
  • Control pedestal includes 2-handed cycle start switches for operator safety
  • Can be shipped in compact configuration
Stack Assembly Press with Resistance Welding

Fuel Cell Stack Assembly Presses

Center Span Pivot Press

  • Servo press, able to hold constant force up to 45kN as stack compresses
  • Innovative design allows operators to lower the stack throughout assembly, maintaining appropriate working height
  • Relatively light design including tilt control for easy stack assembly
  • Optional custom tooling, designed to suit, with 2-axis pivot option where plausible
  • Control console includes 2-handed cycle start switches for operator safety

60kN Servo Press

  • Servo press holds precise pressure up to 60kN as stack compresses
  • Optional custom tooling (not shown) includes:
    • Strap insertion clamps
    • Proprietary strap-tensioning and forming system
    • Integrated weld head
    • Dry leak-testing
    • Removable alignment clamps
  • Pivot from horizontal to vertical
  • Control pedestal includes 2-handed cycle start switches for operator safety
  • Can be shipped in compact configuration
663-C-Type-Press

Cell Block Presses

60kN Cell Block Leak Tester

  • Ideal for leak testing single cells or stack of cells up to 200mm tall
  • Optional custom leak test tooling with specially-designed interfaces
  • Servo-press for precise pressure control and low maintenance
  • Laser sensor for top of cell/stack of cell detection.
  • High speed 80mm/sec operation, slows to slow speed just above the plates and then quickly compresses to kN setpoint with no-overshoot.
  • Accurate to ±0.050 kN
  • Repeatable to ±0.020 kN
  • Optional built in pressure interlock, press will not open with pressure detected in any circuit.
  • Adjustable back tilt from 0-20°
60kN Cell Block Leak Tester

Cell Block Leak Test Press

  • Servo-press for precise pressure control and low maintenance
  • Custom leak test tooling with specially-designed interfaces
  • Custom gaskets and specialized locating pins
  • Safe workstation designed for efficient workflow
Cell Block Leak Test Press

Hundreds More…

Flow-field and plate pressure drop testing equipment 

Stack leak testing equipment

Plate permeability testing equipment

Stack compression and assembly fixturing

Special purpose carbon plate machining spindles and related

fixturing and measuring equipment

Electrode fabrication equipment:

Catalyst application and handling

Bonding equipment

Compaction presses

Electrode testing equipment:

Precision (micron) thickness testers, under compressive loads

Breakdown voltage testers

Absorption testers

Continuity testers

Permeability testers

Optical inspection equipment (Quiss and DVT cameras)

Bar coding, scanning and tracking

Membrane defect detection

Infrared camera inspection stations

Catalyst loading measurement

Leak detection equipment.

Seal fabrication, tooling, molds, process equipment

Gluing and curing fixturing

Test station enclosures

Digital optical inspection and measuring stations

Pick and place machinery

Sheet feeders and stackers

Screen printing and related equipment

Precision laminating equipment

Electrode fabrication

Materials handling, special purpose carts and racking

Stack and engine manipulation equipment

Heater stands, and related run-in equipment

Precision electrode cutting and measuring equipment

Hydrogen, methanol and oxygen handling equipment and test stands

And much more.  Testing equipment listed above can be supplied with data output to enterprise data collection, or to local PCs

We also do machining of specific fuel cell stack parts, carbon plates, casting of special purpose seals, and ancillary stack or engine components.