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WP 410 Pendulum Impact Tester, 300 Nm
Education / GUNT Hamburg / Engineering Mechanics and Machine Elements / Properties of Materials /

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 with increased impact energy up to 300Nm. Two impact energy settings are available using an additional weight on the hammer. With this unit, a quality test can be performed on different metallic materials. The unit can, however, also be used for non-metallic specimens. The notched bar impact work required to deform the specimen can be read off directly from a trailing pointer on a large scale. An electromechanical two-hand trigger increases safety for the user. As an accessory, the system can also be equipped with an electronic goniometer, a measuring amplifier and software so that measured values can be read out on a PC and evaluated there.


A protection cage for the impact tester is required to ensure a safe and hazard-free operation, i.e. WP 410.50. 


Learning Objectives / Experiments
- Determination of notched bar impact work
- Determination of notched bar impact strength
- Evaluation of fracture surface characteristics
- Influence of notch shape on the notched bar impact work
- Influence of material and thermal treatment on the notched bar impact work
- Influence of specimen temperature on the notched bar impact work
  + notched bar impact work-temperature curve

[1] Laboratory experiment on the performance of the notched bar impact bending test with increased energy
[2] Quality testing and evaluation of the fracture behaviour of metallic materials
[3] Pendulum impact testing machine in accordance with DIN 51222
[4] Capacity to perform work 150Nm and 300Nm
[5] Hammer impact speed 5.5m/s
[6] Increased safety due to electromechanical two-hand trigger
[7] PC data acquisition WP 410.20 available

[8] Protection cage WP 410.50 available

[9] 230V, 50/60Hz, 1 phase or 120V, 50/60Hz, 1 ph.


Technical Data

Capacity to perform work: 150Nm and 300Nm
Hammer mass: 9.9kg and 19.8kg
Pendulum length: 840mm
Fall angle: 150°
Impact speed of the hammer: 5.5m/s


Dimensions and Weight
l x w x h : 800 x 600 x 1460 mm
Weight : approx. 360 kg
Required for Operation
230V, 50/60Hz, 1 phase or 120V, 50/60Hz, 1 ph.
Scope of Delivery

1 complete pendulum impact testing machine

1 set of ISO V notched bar specimens
1 set of additional weights
1 instruction manual

Order Details

020.41000  WP 410  Pendulum Impact Tester, 300 Nm