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FALLING WEIGHT TESTER

A round of testing

The falling weight tester is used to determine the external impact resistance of thermoplastic pipes using the staircase or round-the-clock method. The falling weight tester is designed for automated material testing of thermoplastic sections of piping of varying circular cross sections in terms of their resistance to external impact forces. The tester has an adjustable drop height and can be used with a variety of drop weights. The testing procedure is measured and logged electronically. 

Standards

Keine Standards gefunden

  • ISO 11173
  • ISO 3127
  • ASTM D 2444

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Features and Functionality

The drop weight is transported to the height required for the test in question (impact) by a lifter and then dropped. The lifter moves back down as the weight drops. 
Once the drop weight has hit the sample, the catching mechanism places the weight back on the lifter. The falling weight tester is then prepared for the next test (using the same drop weight). 
For each stroke, the drop height (offset) can be increased or decreased at the touch of a button. The value is stored centrally and can be changed at any time.
A screen dialogue allows an individually adjustable comment in text form to be added to each stroke. 
If a USB mass storage device is connected, it is possible to save up to 250 impacts per test cycle (data set). 
The testing device has been developed for the following test procedures: 
  • Determination of resistance to external blows using the staircase method. 
  • Test method for resistance to external blows using the round-the-clock method. 
  • Determination of resistance to external blows – round-the-clock method. 
  • Test of impact resistance of thermoplastic pipes and fittings made of plastic by means of a drop weight. 

Periphery and Complementary

  • Sample preparation
For conditioning samples for impact and drop tests with a water depth of up to 1,000 mm.

Standards

  • ISO 11173
  • ISO 3127
  • ASTM D 2444
  • EN 477
  • Sample preparation

The walk-in cooling chamber is used to condition specimens to the preset temperature.

Standards

  • ISO 11173
  • ISO 13477
  • ISO 3127
  • ASTM D 2444
  • Software