Company: Sandner
Sandner - EXH, axial high-temperature extensometers
For static and fatigue tests
Mainly used in static and fatigue testing machines for strain measurements.
For material testing at temperatures up to 1200° SANDNER offers a range of extensometers that can record tensile, compression and fracture mechanics data at temperatures up to 1200°C.
Rods for temperatures up to 1800° are available as an option.
All extensometers in the EXH series can be connected to radiation furnaces or three-zone heating chambers for measurement. The measurement information is transferred from the sample through the furnace to the extensometer via two ceramic rods. The ceramic rods can be reground with special grinding discs.
The extensometer is attached to either the oven or the machine frame using special spring-loaded brackets. This means that movements on the machine are not registered by the extensometer as a measurement error. This spring in conjunction with two knurled nuts presses the ceramic transmission rods quickly and securely onto the test specimen.
In the event that the ceramic rods should slip when testing hard materials, a special punching device from the accessories programme is available to prevent this slippage. This creates two centring points on the sample to which the rod tips are attached.
A heat shield protects the extensometers from excessive heat.
Delivery
Delivery:
- Extensometer in storage box with 500 mm cable and Lemosa plug.
- Two ceramic rods with brackets and special pressure and equalising spring.
- Heat protection grille with press-on screws and four knurled nuts.
- Two extensometer mounting clamps.
- Data sheet with all extensometer-specific data on hysteresis, measurement error and sensitivity.
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