Product Introduction 
The heat seal tester operates on the hot-press sealing principle. The upper and lower heat seal jaws seal the specimen under set temperature, pressure, and time conditions. A dual-cylinder structure with an internal pressure balance mechanism ensures uniform pressure on the sealing surface. The digital P.I.D. temperature control system precisely regulates the heat seal jaw temperature. Selected heat seal jaw materials and custom heating tubes ensure uniform temperature across the sealing surface. The control system features a full digital display with a high degree of automation. Users can set heat seal temperature, pressure, and time via the operation panel; the equipment then automatically completes the sealing process. Automatic and manual working modes meet different testing needs, and a foot switch facilitates operation. The instrument is suitable for heat seal performance evaluation of plastic film substrates, flexible packaging laminates, coated paper, and other heat-sealable composite films, providing standardized testing means for packaging material R&D and quality inspection.

Key Features
Fully Digital Control System Digital display control system with full automation for simple, stable, and reliable operation.
Digital P.I.D. Temperature Control Digital P.I.D. temperature control with high accuracy; heat seal temperature range ambient to 300°C with ±1°C accuracy.
Uniform Sealing Surface Temperature Selected heat seal jaw materials and custom heating tubes, combined with dual heating, ensure uniform temperature across the sealing surface.
Dual-Cylinder Pressure Balance Structure Dual-cylinder structure with internal pressure balance mechanism ensures uniform and stable heat seal pressure, adjustable from 0 to 0.7 MPa.
International Brand Pneumatic Components High-precision pneumatic control components, all from internationally renowned brands, ensuring long-term stable operation.
Safety Protection Design Anti-scald design and leakage protection design for safer operation and laboratory personnel safety.
Automatic and Manual Modes Supports both automatic and manual working modes for efficient operation and different testing habits.
Ergonomic Operation Panel Operation panel specially optimized according to ergonomic principles for convenient operation.

Main Technical Specifications 

FAQ
1. What materials is the Heat Seal Tester suitable for?
It is suitable for heat seal performance testing of plastic film substrates, flexible packaging laminates, coated paper, and other heat-sealable composite films, measuring heat seal temperature, time, and pressure.
2. How is heat seal temperature controlled? What is the accuracy?
Digital P.I.D. temperature control is used, with a heat seal temperature range of ambient to 300°C and accuracy of ±1°C. Selected heat seal jaw materials and custom heating tubes ensure uniform sealing surface temperature.
3. How is heat seal pressure adjusted?
Heat seal pressure ranges from 0 to 0.7 MPa, with standard pointer display adjustment (digital display optional). The dual-cylinder structure and internal pressure balance mechanism ensure uniform and stable heat seal pressure.
4. What working modes does the equipment support?
It supports both automatic and manual working modes. Automatic mode is suitable for batch testing with high efficiency; manual mode is suitable for single tests or special operational needs.
5. Does the equipment require an external air supply?
Yes, an external air supply with pressure ≤0.7 MPa is required. The standard configuration includes an air line and air filter; the air supply is user-provided.

6. What safety protection measures does the equipment have?
It features anti-scald design and leakage protection design. The operation panel is ergonomically designed for safer and more reliable use.

After-Sales Service 
Established in 2007 and with nearly two decades of experience, Shandong Annimet Instrument Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of laboratory testing and sample preparation equipment. Quality is our foundation. We are your bridge from concept to reality. We deliver more than just instruments — we deliver confidence. This Heat Seal Tester comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and heat seal testing method consultation. For any inquiries, please contact our customer service team; we are dedicated to providing comprehensive pre-sales, in-sales, and after-sales support. Hotline: 400-9933-057, Email: anmt_test@126.com.