HSM41 Pendulum Impact Tester (25J)

HSM41 Pendulum Impact Tester (25J)

A sturdy bench top mounted unit for the study of notched bar (Charpy) impact strength tests.

A sturdy base plate with protective guard surround houses all the components, the guard has a lockable door for ease of access when setting the test but also security whist not in use. The base plate has an anvil and pillar which have replicable impact profiles for supporting the notched specimens prior to testing.

A heavy hammer swings on a pre-defined radius, set by the hammer arm. The initial energy of the hammer can be varied by changing the starting weight and/or the start height of the hammers’ swing this can be varied between 3 set positions. As the hammer swings through its radius, it impacts on the specimen and the distance it travels passed the specimen is measured on an integral scale shown in degrees.

A pointer travels with the hammer upon specimen breakage, thus indicating the change in angle from start position to highest point after fracture. The marker remains in position following specimen fracture to enable the value to be recorded. This can then be used to calculate the amount of energy absorbed by the specimen.

The release of the hammer is controlled with a plunger. A push block is situated on the protractor face, this facilitates a two handed operation and keeps the user away from the swinging arm for full safety.

A number of test specimens are provided, with further specimens available separately (HSM41a). The specimens are manufactured to specific notched specifications (British Standards EN 10045-1 (1990)) and come in aluminium and brass.

A comprehensive technical instruction manual is included along with all necessary tools and accessories, as well as a 2 year warranty.

HSM41 Pendulum Impact Tester (25J)
  • Bench top apparatus for notched bar impact strength tests.
  • Quality testing and evaluation of the fracture behaviour of metals.
  • Suitable for non-metals also.
  • Impact Hammer and weight set provided.
  • Full safety guard with lockable door.
  • To have aluminium and brass test specimens supplied.
  • Variable Start Height, 3 different start heights.
  • Variable Start Weight, 6 different start weights.
  • Replaceable impact tip and impact plates.
  • 2 year warranty 
  • To determine notched impact energy absorption.
  • Notched bar impact strength, Charpy test.
  • Observe and evaluate fracture surface characteristics from broken samples.
  • Understand the influence of notched shape and cross sectional area on the notched bar impact.
  • Understand the influence of materials and their properties on notched impact.
  • The influence of starting mass, starting height on the overall potential energy of the swinging mass.