The HDT Tester uses a 2 steps split loading system to ensure simultaneous application of the load on the specimens, applying a consistent fixed stress to the specimens.
Using their patented design of the stirring and circular flow, Toyoseiki HDT Tester is able to ensure the temperature uniformity of the oil bath.
Equipped with high precision LVDT, and Pt100 temperature sensors at each station, Toyoseiki’s HDT Tester is able to provide consistent, stable results when measuring the temperature as the limiting distortion is reached.
| DTUL |
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| VICAT |
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Specifications
| Model | 3M-2W | 6M-2W |
| Number of stations | 3 | 6 |
| Heat transfer medium | Silicone oil | |
| Temperature range | Max. 300°C | |
| Heating rate | 120°C/h, 50°C/h | |
| Bending stress | 1.80MPa, 0.45MPa | |
| LVDT resolution | 1/1000mm | |
| Specimen support span | 64mm, 100mm | |
| Movement of test stations | Motorized | |
| Application of test weights | Motorized (Simultaneously applied) | |
| Power supply | Single-phase, AC220/230V, 50/60Hz, 3.2kVA | Single-phase, AC220/230V, 50/60Hz, 5.5kVA |
| Cooling water requirement | 0.1 to 0.7MPa, 5L/min. or more | |
| Dimensions | W720 x D630 x H1350mm | W1010 x D630 x H1350mm |
| Mass (Approx.) | 150kg | 180kg |
Related standards
| ISO 75 | Plastics-Determination of temperature of deflection under load |
| ISO 306 | Plastics-Thermoplastic materials-Determination of Vicat softening temperature (VST) |
| ASTM D648 | Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position |
| ASTM D1525 | Standard Test Method for Vicat Softening Temperature of Plastics |
