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Impact Test Systems for Plastics - page 2 / 4





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Model IT 503

The new model IT 503 plastics impact tester, together with the model 92T, continues to set the industry standard for versatility, ease of opera- tion, and display of information with high resolution.

These machines are capable of determining the impact strength using either a Charpy or Izod configuration, without changing the pendulum. The user attaches the appropriate striking tup on the pendulum and the speci- men clamp or anvils in the base of the unit, to test plastics in accor- dance with ASTM D256 (Izod impact), ISO 179 (Charpy impact), ISO 180 (Izod impact), ASTM D6110 (Charpy Impact), ASTM D4812 (Unnotched Cantilever Beam Impact), ASTM D4508 (Chip Impact), ASTM D950 (Adhesive Bond Impact), and other similar standards.

The aerodynamically designed compound pendulum provides maxi- mum rigidity in the direction of the impact and virtually eliminates any windage losses. Pendulum capacity is easily changed by adding on any one of seven optional weight sets.

The energy absorbed in breaking the specimen can be configured in SI, metric, or English units and is determined by an optical encoder mounted on the shaft of the machine and is based on the latched height of the hammer (relative to the zero potential energy point), the maximum post-impact height of the hammer,

Close-up of Izod test setup.

and the frictional losses of the machine. Energies of less than 0.03% of the pendulum capacity can be resolved and this resolution is vastly superior to dial type displays and other currently available displays.

Both the IT 503 and 92T come with a standard “low blow” feature. This provides a convenient and reliable means for releasing the pendulum from a lower than usual height, allowing testing at lower impact velocities and energy levels. Additionally, the model IT 503 is supplied with all necessary safety shielding to protect the operator and bystanders from the broken samples.

To make impact testing on plastics easier and more flexible, the machines can be connected to a pc running Tinius Olsen’s impact software.

Model IT 503 Plastics Impact Tester.

Key Features of Model IT 503

  • Aerodynamic compound pendulum that can accommodate weights to increase test capacity

  • Interlocked safety doors to ensure pendulum cannot be released with these doors open

  • Simple and rapid change between Izod and Charpy test setup

  • Conforms to all applicable European CE Directives.

Optional Features of Model IT 503

  • Automatic braking system for increased safety and higher throughput

  • Motorized pendulum return for added safety

  • Pneumatic Izod clamping system for higher test repeatability

  • Pneumatic specimen rack and feed system for more automated testing

  • Hot and cold chambers for testing at different temperatures

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