State-of-the-art Engineering Equipment

SM-103.1 | Charpy Impact Tester 750J

  • Classic Charpy notched-bar impact test
  • Pendulum impact tester based on DIN EN ISO 148-1
  • Hammer mass can be varied by adding or removing weights
  • Brake to reduce the residual energy
  • Safe operation thanks to the two-hand release of the hammer
  • Protective cover for pendulum impact tester available as an optional accessory
  • Scale for displaying the notched-bar impact work
  • Notched-bar impact specimens (U/V/R notch): free-cutting steel, heat-treatable steel, construction steel, brass
  • System for data acquisition available as an optional
  • LxWxH: 1000x300x1000mm (Approx.)
  • Weight: approx. 55kg
Technical Specification
In the field of industrial quality control, the impact test is a widely used test method with which to quickly and easily determine characteristics for a material or component analysis. This experimental unit is a solid-pendulum impact tester, designed for the Charpy notched-bar impact test. The clean layout and simple operation mean the experimental sequence can be observed in all details and phases. In the experiment, the hammer attached to a pendulum arm describes an arc. At the lowest point of the hammer path, the hammer transfers part of its kinetic energy to the notched specimen. The specimen is either destroyed or bent by the impact and pushed between the supports. The notched-bar impact work required to deform the specimen is read directly off a large scale. In order to vary the output energy, the mass of the hammer can be changed by adding or removing weights. A brake reduces the residual energy of the hammer on each swing until it reaches zero. The required protective cover for the operating area allows the experiments to be conducted safely and is available as an accessory. The hammer is triggered with two hands for safer operation. The experimental results allow quality control and an analysis of the fracture behaviour of different metallic materials. Non-metallic specimens can also be used. Specimens with different notch geometries, in different materials and specimen dimensions, are included in the scope of delivery.
Pendulum impact tester work capacity
  • 15Nm
  • 25Nm (with extra weights)
  • weight: 2.05kg and 3.42kg (with extra weights)
  • extra weights: 4x 0.342kg
  • impact velocity: 3.8m/s Approx.
  • head: 745mm Approx.
Supports for specimens
  • gap: Approx.40mm
Notched bar impact specimens
  • LxW: 10x5mm, 10x10mm
  • cross-section at the notch root: 10x8mm, 10x5mm
Specimen materials
  • Automatic steel 9SMn28K
  • Tempering steel C45k
  • Structural steel S235JRC+C
  • Brass CuZn40Pb2