Pendulum Impact Tester
Charpy and Izod and more

The technology of WPM pendulum impact testers is up-to-date. Their stable design guarantees impact tests with very low vibration and high measurement accuracy.

Pendulum Impact Testers for Metal

Pendulum Impact Tester PSd 750

Application

The pendulum impact tester PSd 750 with a working capacity of up to 750 J is applied for:

  • Notched-bar impact tests based on Charpy on steel and other metals according to ISO 148-1 as well as ASTM E23
  • Instrumented Charpy impact tests according to ISO 14556

Features

  • Stiff, vibration-optimized, cast iron stand
  • Electro-mechanical pendulum hoisting
  • Electro-mechanical pendulum pendulum brake
  • Electrical safety release of the pendulum
  • Digital preselection and display of the working capacity by continuous adjustment of the bearing point
  • Protective housing including electronical locking switch for the door
  • Exchangeable support plates for different specimen dimensions
  • Precise measurement results also in low energy level
Enquiry

Pendulum Impact Tester PSd 450

Application

The pendulum impact tester PSd 450 with a working capacity of 150, 300 or 450 J is applied for the following tests:

  • Charpy pendulum impact tests on steel and other metals according to ISO 148-1 and ASTM E23
  • Notched-bar impact tests based on Izod according ASTM E23
  • Impact tensile tests
  • Wedge impact tests according to ISO 11343
  • Instrumented impact tests according to ISO 14556

Features

  • Rigid design, therefore very low vibration and long service life
  • Easily exchangeable strikers, support and pendulum hammer
  • 4-digit digital display of absorbed impact energy
  • Increased operating comfort by automatic pendulum lifting and automatic pendulum brake
  • Electrical safety release of the pendulum
  • Pendulum can be released by closing the safety door
  • Complete safety enclosure with safety door according to ISO 13849-1
Enquiry

Pendulum Impact Tester PSd 50-M

Application

The pendulum impact tester PSd 50-M with a working capacity of 50 J is especially applied for notched-bar impact tests according to technical conditions of standard GOST 10708 in connection with standard GOST R ISO 148-1 as well as applying corresponding special accessories according to notched-bar impact tests based on Charpy on metal according to standard GOST 9454.

Features

  • Easily exchangeable striker, support and pendulum hammer (15 J, 25 J, 50 J)
  • C-shape hammer
  • Drop angle 160° fixed
  • Impact velocity 5.0 ms
  • 4-digit digital display of the absorbed impact energy
  • Manual hammer lifting and latching the retaining arm (fixed stop)
  • Electrically operated release of the safety catch of the pendulum (two-hand operation)
  • Measured value output via interface Ethernet to connect to PC with evaluation software
  • Strikers prepared for instrumentation optionally available

FAQ: All About Pendulum Impact Testers

300 J hammer with striker Charpy

300 J hammer with striker Charpy

What is the Charpy Impact Test?

For Charpy impact tests, the test specimen is placed against two anvil inserts on two supports. The striker of the pendulum hammer hits the centre of the side of the test specimen which is opposite to the notch and thus breaks the specimen. The impact energy absorbed by the test specimen is measured digitally and displayed. Dividing this energy by the original cross section of the test specimen, the notch-impact strength is the result.

Instrumented Izod striker

Instrumented Izod striker

What is the Izod Impact Test?

For the Izod impact bending test, the test specimen, which is held vertically, is ruptured as a result of the impact against the notched bar or its opposite side, while the notch root lies at the same level as the upper surface of the support. In this respect, the striker hits the test specimen at a defined distance from the notch. The notch-impact strength is calculated by dividing the absorbed impact energy by the original cross section of the test specimen at the notch.

What is the Tensile-Impact Test?

The tensile-impact test is a tensile test with high shear rate. In this test, the energy absorbed up to the rupturing of the test specimen and the residual elongation at the break are measured. In this regard, the holder permanently connected to the anvil block is aligned the way that the pendulum hammer hits the cross yoke located at the end of the horizontally held test specimen with a striking fork when passing through the normal position. The tensile-impact strength is the impact energy absorbed by the test specimen in relation to the specimen’s smallest cross section prior to the test.

Instrumented Brugger striker

Instrumented Brugger striker

What is the Brugger Test?

For the test based on Brugger, a specimen especially manufactured for this test is clamped the way that the contact surface of the striker meets the wide surface of the specimen fin at an angle of 30°. Mounting of the specimen must be such that during testing there is a linear contact between the upper edge of the fin and the contact face of the striker. Precaution must be taken to ensure that the shaft of the specimen can neither turn nor move in any other way during testing. The impact bending specimen is tested with an instrumented striker.