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  Engineering Mechanics and machi

  Torsion Testing Machine 200 Nm Motor Driven

  The unit is used for torsional testing of different materials to fracture. Test moment and angle of twist are measured. Bars of different length and diameter are used as specimens. The moment is applied using a reduction geared motor that provides four different drive speeds via the frequency converter. A strain gauge measuring shaft provides the moment as an electrical signal, the angle of twist is recorded by an optoelectronic angular encoder. Both values are displayed on a LC display. The moment is transmitted to the test bars using commercially available hex sockets. For adaptation to different length probes, the dolly can be slid. The base plate is reinforced against twisting with square sections. A transparent plastic cover provides protection against flying debris on fracture.

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  Engineering Mechanics and machi

  Pendulum Impact Tester

  The pendulum impact testing machine is a solid unit specially designed for engineering lectures. It is used for performing the notched bar impact bending test, one of the classic material tests. In this way, quality can be tested and the fracture behaviour of different metallic materials evaluated. The unit is equally suited for use with non-metallic specimens. The notched bar impact work necessary to deform the specimen can be read off directly from the gauge on a large scale. A two-hand trigger increases the safety for the user. A protective cover for the working area and a PC data acquisition is also available. The educational advantages of the unit lie in its simple layout and direct visibility of all actions. Together with the other units in the WP range, this unit is part of a complete course on the fundamental principles of material testing.

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  Engineering Mechanics and machi

  Experimental Set Portal Frame

  The set is intended for use with the universal test frame and demonstrates the elastic deformation of loaded frames. The test specimens are a U-shaped and and S-shaped frame made of steel with a square cross-section. These are subjected to varying loads using sets of weights and the resulting deformation measured. For this purpose, the set includes two precision position measurement gauges. The bearings can be either fixed or free enabling the frames to be evaluated as statically defined or undefined systems. The experimental set-up is quickly and securely assembled using special clamps.

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  Engineering Mechanics and machi

  Bifilar Trifilar Suspension Apparatus

  The model permits oscillations on pendulums with bifilar or trifilar suspension to be investigated. For this purpose a bar, a cylinder, or a hollow cylinder made of galvanised steel can be hung from a wall mounted carrier plate made of aluminium and placed in oscillation. The bodies used in the experiments have strong steel hooks for attachment to the suspension cords. The length of the cords can be rapidly changed and securely fixed using clamping wheels. The beam can oscillate, by translation, in the plane of suspension like an ideal mathematical pendulum. The cylinder and the circular ring work as rotary pendulums.