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Servo-pneumatic fatigue test machine
2 - 10kN bench top system
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5kN servo-pneumatic test machine configured
to test a prosthetic lower limb |
Frame
- Rated up to 25 kN tension & compression.
- Fixed bottom crosshead.
- Movable top crosshead clamped by pinch bolts.
- Actuator mounted on top cross head.
- Two chromed solid steel columns.
- Top and bottom crosshead and feet powder-coated (RAL7035)
- Space between columns: 405mm
- Standard column length: 1200mm.(650mm maximum daylight space).
- Different column lengths available on request.
- Weight, including actuator: 220kg
Actuator
- Low friction grade pneumatic actuator.
- Mounted on crosshead.
- Capacity options (shown as the static rating for 7 bar air supply):
- 2kN
- 5kN
- 10kN
- 15kN
- 20kN
- 25kN
- Standard stroke options:
Load cell
- The fatigue-rated load cell can be mounted on either the top
or bottom crosshead.
Controller
Controller options:
- Digital controller based on an embedded RISC processor with a
PC with Windows-based software as user interface. (See Digital
Controller data sheet.)
- Analogue controller which may be interfaced with PC for data
logging and/or control.
Pneumatic supply
The compressed air supply for the actuator should be:
- Between 5 and 10 bar.
- Clean.
- Dry.
- At room temperature.
- Free of oil contamination.
- Filtered to 5 micron maximum particle size.
Advantages of pneumatic
- High reliability - low maintenance.
- Major price advantage over servo-hydraulic and screw-thread machines.
- Little or no heat generated.
- No fire risk.
- Runs from filtered workshop air or bottled air.
- Low inertia.
- Inherent predictable stall thrusts.
Accessories
Accessory options
- Extensometer.
- Clip gauge.
- Furnace.
- Grips
- Ball nut & ball cup.
- Plate.
- Wood's metal pot.
- 400mm2 slotted tooling plate to suit M12 T-nuts.
 | | 'T' slotted tooling place illustrated with load cell mounted on the actautor piston. |
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