Heat Deflection Temperature Tester Manufacturer,Supplier and Exporter in India
Product Code : EL-PTE-13202
Quick Answer: The Heat Deflection Temperature Tester finds the temperature at which a plastic specimen deflects by a specified amount under a specified stress. The specimen rests on two cylindrical edged blocks and is pressed at the centre of the span by a cylindrical edged loading tip inside a heated bath.
Last updated: October 2026
Key Features
- Rectangular test specimen supported over two cylindrical edged blocks
- Loaded at the centre of the supported span through a cylindrical edged loading tip
- Specimen, supports and loading frame kept in a high temperature bath
- Bath temperature raised slowly during the test
- Heat deflection temperature is the temperature at which the specimen deflects through a predetermined distance
Technical Specifications
| Specification | Value |
|---|---|
| Specimen | Rectangular |
| Supports | Two cylindrical edged blocks |
| Loading | Cylindrical edged loading tip at the centre of the span |
| Bath | High temperature bath, temperature raised slowly |
About This Product
Heat deflection temperature is used to compare how plastics hold their shape when warmed under load. In teaching, the test shows students that plastics soften at different temperatures and that the result depends on both temperature and applied stress. A rectangular bar is loaded at the middle of a span while the bath warms slowly, and the temperature at which it reaches the set deflection is recorded for each material. The Heat Deflection Temperature Tester can be supplied for export orders from Angola, Brunei, Eritrea, Montenegro and Jamaica.
Frequently Asked Questions
Q1. What is heat deflection temperature?
It is the temperature at which a plastic material deflects by a specified amount under the action of a specified stress.
Q2. How is the specimen loaded?
The rectangular specimen is supported over two cylindrical edged blocks and pressed at the centre of the span through a cylindrical edged loading tip. The specimen, supports and loading frame sit in a high temperature bath whose temperature is slowly raised.
Related: Plastic Testing Equipment, Deflection Temperature under Load Apparatus, Vicat Softening Point Apparatus, Melt Flow Index Apparatus.
For a quotation on the Heat Deflection Temperature Tester, contact School Lab Equipment India.