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Heat Deflection and Vicat Softening Point Temperature Tester: The Key Equipment for Precisely Controlling Material Heat Resistance

2025-06-23
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Professionally tests Heat Deflection Temperature (HDT) and Vicat Softening Point (VST) of polymer materials such as plastics and rubber.

Complies with international standards including ISO 75, ISO 306, ASTM D648, ASTM D1525, and GB/T 8802.

In industries such as plastic products, wires and cables, automotive parts, and packaging materials, the heat resistance of materials directly impacts product quality and safety. The Heat Deflection and Vicat Softening Point Temperature Tester, as a core testing equipment, provides scientific basis for R&D, quality inspection, and production control by accurately measuring the critical deformation point of materials under heating conditions.

Heat Deflection and Vicat Softening Point Temperature Tester

I. Core Functions and Technical Highlights


Dual Testing in One Unit, Efficient & Flexible

This equipment integrates both Heat Deflection (HDT) and Vicat Softening Point (VST) test modes. Both types of experiments can be completed without changing the main unit, significantly improving testing efficiency.


High-Precision Intelligent Control System

Temperature Control Accuracy: ±0.5°C (Full-range PID automatic adjustment)

Heating Rate: 120°C/min (Max), supports standard programs like 50°C/h, 120°C/h

Deformation Measurement: 0.001mm resolution, ±0.005mm accuracy

Multi-station Design: Independent testing for four specimens


User-Friendly Operation & Safety Protection

10-inch touch screen, one-click switching between Chinese/English interfaces

Automatic lifting, automatic loading, over-temperature power cut-off protection

Real-time data curve display, supports USB export and network functions



II. Parameter Configuration

Temperature Range: Room temperature ~ 300°C

Heating Medium: Methyl silicone oil (recommended) or transformer oil

Number of Sample Holders: 4-station independent testing

Deformation Measurement Range: 0~10mm

Test Load: Vicat: 10~1000g; Heat Deflection: 0~20kg

Compliant Standards: ISO 75, ISO 306, ASTM D648, etc.

Power Requirements: AC 220V±10% / 50Hz


Plastics Industry

III. Typical Application Scenarios

Plastics Industry

Evaluating the heat resistance limits of injection-molded parts and engineering plastics (PA, PC, PP, etc.)

Optimizing material formulations and production processes


Wires and Cables

Testing the heat deflection temperature of insulation layers to ensure safety under high-temperature operating conditions

Quality Inspection Agencies

Issuing authoritative test reports based on National/ISO standards

University Laboratories

Teaching and research in polymer materials



IV. Four Key Advantages of Choosing Us

Precise and Reliable

Imported PT100 sensors + servo motor loading, achieving data repeatability of 99.5%.

Efficient and Time-Saving

Four-station parallel testing, enabling multiple sets of data comparison in a single run.

Intelligent and Worry-Free

Automatic fault diagnosis, remote system upgrades, reducing operation and maintenance costs.

Service Guarantee

Professional technical team provides installation training, calibration, and lifelong maintenance support.