Related products

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  Engineering Mechanics and machi

  Wheel and Differential Axle Apparatus

  The model demonstrates the conditions of equilibrium on a differential pulley block. Three anodised aluminium pulleys of different diameter are fitted to a shaft mounted on ball bearings. The forces act, on the one hand, directly on the peripheral of the largest pulley, on the other hand, via a roller on two smaller pulleys. Easy to interchange weights permit the load to be varied such that equilibrium is obtained. The model is intended for wall mounting.

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  Engineering Mechanics and machi

  Torsion Tester 30 Nm

  Using this unit, metal test bars are twisted to destruction. The test moment and the angle of twist are recorded during this process. Test bars made of different materials with varying lengths are included. The test moment is applied manually using a hand wheel and a worm drive. Measurement is performed with a strain gauge torsion shaft, the deformation of which is compensated. The measurement can be read off directly in Nm on a digital display on the measuring amplifier. For adaption to different length specimens, the measurement jig can be slid along the stiff frame. Using a calibration unit at the start of the experiment, it is possible to generate a defined torque. The angle of twist is determined using a graduated scale and and a revolutions counter. Commercially available 1/2″ square drive sockets, 17mm across flats, are used as specimen holders.

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  Engineering Mechanics and machi

  Cam Analysis Apparatus

  The allows the dynamic investigation of cam mechanisms, as used in motors for actuation of the valves. The cam mechanism consists of 4 interchangeable cam plates and 2 different tracers. A mass and a spring are used to simulate the valve. In order to demonstrate the so-called “valve wobble”, the spring rate, mass and speed are adjustable within broad limits. A plotter allows the actual lift curves to be recorded. The open design allows the observation of every detail of the movement process. A stroboscope (not supplied) can be used to provide a particularly impressive view of the movement process and lift. The unit is intended for demonstration purposes in technical education. It is not suitable for use as a test stand for fatigue testing.

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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.