When mass and speed collide, enormous physical forces are generated that must be deflected. In order to perform a crash test safely for all participants in the test facility, safe braking of the test object is required.
ERNST has developed two braking systems for this purpose, which are used accordingly depending on the test.
Short rope brake
The braking system is characterized by a short rope and is installed in a compact unit.
Due to the short rope length, this braking system is only used to brake an object in a defined way after the crash.
The air-operated disc brake transmits the braking force to the object to be braked via a 75 mm wide polyamide band with max. 7% elongation.
The retraction after a braking process is performed manually via hand crank.
- Rope length: 25 m
- Max. speed: 90 km/h
- Max. weight: 2.500 kg
- Max. braking force: 40 kN
- Mounting: Two fixing points in the floor via threaded dowels
Long rope brake
The braking system is used with any moving test equipment – whether a mobile barrier or a test vehicle.
The long rope allows any test object to be safely braked both during the start-up phase and after the crash phase.
This uses a 12 mm robust steel cable, which is installed in a cable drum.
The retraction after a braking process is performed with a foot switch and electromagnetic coupling.
- Rope length: 250 m
- Max. speed: 100 km/h
- Max. weight: 3.000 kg
- Max. braking force: 50 kN
- Mounting: Two rows of mounting in the floor via threaded dowels
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