It is a testing device (100) of the invention is to search for crash simulation, with a rail arrangement (130), a first carriage assembly (110), which are arranged along a longitudinal axis of the rail arrangement (130) is arranged so as to be displaceable, an acceleration unit (120), by means of which for the acceleration of the carriage assembly (110) a force on the first carriage assembly (110) is transferable. With the aim of the parts to be tested outside of the test device to prepare, rapidly into the testing device and the total mass of the carriage assembly including object to be tested, to be kept low, the testing device (100), furthermore, a second carriage assembly (140), which in the rail arrangement (130) is applied and can be displaced along the latter and is adapted to a testing set-up (150), having at least one of the crash simulation component to be tested to carry. The first carriage assembly (110) further comprises a releasable coupling (160) to provide a force of the acceleration unit (120) via the first carriage assembly (110) to the second carriage assembly (140) to transmit.
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