Application of Heat Deflection & Vicat Softening Temperature Tester

Customer Background

A polymer materials manufacturer specializes in the R&D and production of engineering plastics and modified materials. Its products are widely used in electrical & electronics, automotive components, and construction materials.

With the expansion of its product portfolio, the customer required more accurate and efficient thermal performance testing. The existing equipment could no longer meet their needs in terms of stability, automation, and data analysis.

Customer Requirements

During equipment selection, the customer specified the following key requirements:

(1) Capability to perform both Heat Deflection Temperature (HDT) and Vicat Softening Temperature (VST) tests

(2) High temperature control accuracy and stable heating rate

(3) Multi-station testing to improve efficiency

(4) Complete data acquisition, curve analysis, and report output

(5) High operational safety for long-term continuous testing

(6) Compliance with major international testing standards

Solution Provided

Based on the customer’s needs, we supplied the Heat Deflection & Vicat Softening Temperature Tester, along with installation, commissioning, and operator training.

The instrument is specifically designed for thermal performance testing of plastics and non-metallic materials, supporting both R&D and quality control applications.

Applicable materials include:

(1) Plastics

(2) Hard rubber

(3) Nylon materials

(4) Electrical insulating materials

(5) Long-fiber reinforced composites

(6) High-strength thermosetting laminates

Key Advantages Addressing Customer Pain Points

1. Advanced Control System – Improved Test Stability

The instrument features a highly stable temperature control structure, making installation and operation straightforward while minimizing temperature fluctuation and ensuring excellent repeatability.

2. Intelligent Software System – Enhanced Data Management

The PC software supports three groups (three stations) of simultaneous testing with real-time temperature–displacement curve display. The customer can easily perform:

(1) Automatic data acquisition

(2) Curve analysis

(3) Report generation and printing

(4) Historical data traceability

This significantly improves laboratory digital management.

3. Four-Level Safety Protection – Reliable Continuous Operation

The system integrates multiple hardware and software protections:

(1) Mechanical upper temperature limit protection

(2) Software temperature limit protection

(3) Automatic stop after test completion

(4) Administrator operation key

These features ensure safe and stable long-term operation.

4. High-Precision Measurement & Control System – Ensured Accuracy

Equipped with a high-performance temperature sensor and advanced capacitive digital displacement indicator, combined with PID control and fully photoelectric-isolated PWM output, the heating rate deviation is controlled within ±0.5 °C, ensuring high test accuracy and consistency.6.

Customer Feedback

After installation and operation, the customer reported:

Significantly improved test repeatability

Multi-station operation greatly increased testing efficiency

Software reporting reduced manual workload

Stable performance with low failure rate

The instrument has become one of the core devices in the customer’s thermal performance testing laboratory, and the customer plans to purchase additional units for their new facility.