HDT/Vicat Heat Deflection Testers - ToronHDT™ Series
ToronHDT™ Series offers advanced HDT (Heat Deflection Temperature) and Vicat Softening Point Testers for reliable thermal characterization of plastic and thermoplastic materials. Designed for use in quality control labs, R&D facilities, and production environments, the ToronHDT™ systems ensure precise compliance with major international testing standards.
Standards Compliance
The ToronHDT™ Series conforms to a wide range of global standards, ensuring trusted results for product qualification and regulatory compliance:
- ASTM D648 – Standard Test Method for Deflection Temperature of Plastics Under Flexural Load
- ASTM D1525 – Standard Test Method for Vicat Softening Temperature of Plastics
- ISO 75 – Determination of temperature of deflection under load
- ISO 306 – Determination of Vicat softening temperature (VST)
These standards are widely used by manufacturers and testing laboratories to determine the thermal resistance, softening behavior, and performance limits of polymers used in structural or high-temperature applications.
Applications
The ToronHDT™ Series testers are designed to determine:
- Heat Deflection Temperature (HDT): The temperature at which a plastic specimen deforms under a specified flexural load. This test is essential for understanding the high-temperature behavior of materials used in automotive, electrical, construction, and consumer product applications.
- Vicat Softening Temperature (VST): The temperature at which a standard indenter penetrates 1mm into the surface of the specimen under load. This helps differentiate between thermoplastics based on their softening characteristics.
These tests are critical for product development, quality control, and verifying compliance with end-use performance requirements.
With high precision, flexible testing configurations, and full automation via PC software, the ToronHDT™ Series is engineered for demanding laboratories that need accurate, repeatable, and standards-compliant thermal deformation testing of plastic materials.
- Dual testing capability: Supports both HDT and Vicat testing in one system
- User-friendly software control with automatic data acquisition and result recording
- Motorized lifting platform for easy and precise specimen handling
- Wide temperature range up to 300°C
- Real-time plotting of deflection or penetration vs. time/temperature
- Excellent thermal exchange design for uniform heating
- Supports 3, 4, or 6 independent test stations for higher throughput
- Digital deflection measurement with communication interface for accurate readings
| Parameter | Specifications |
|---|---|
| Test Standards | ASTM D648, ASTM D1525, ISO 75, ISO 306 |
| Test Capabilities | HDT & Vicat Softening Temperature |
| Temperature Range | Room Temperature to 300°C |
| Heating Rate | 50°C/h, 120°C/h (Customizable) |
| Deflection Range | -1.00mm to 9.00mm |
| Deflection Measurement | Digital Gauge with Communication Interface |
| Number of Test Stations | 3, 4, or 6 |
| Span for HDT Testing | 64mm or 100mm |
| VICAT Testing Loads | 10N and 50N |
| HDT Flexural Stress Options | Method A: 1.8 MPa, Method B: 0.45 MPa, Method C: 8.0 MPa |
| Control Interface | PC-based software for full automation |
| Graphical Output | Deflection vs. Time / Temperature; Penetration vs. Time / Temperature |