Gradient Heat Sealing Tester
The Gradient Heat Seal Tester precisely measures five groups of sealing temperature, time and pressure. It determines the heatsealability of films, laminates, composites, and polymers, expressing seal strength as a function of sealing conditions.





Technical Specifications
Overview
Precision Heat Sealing Analysis
The Gradient Heat Sealing Tester is a specialized laboratory instrument designed for determining optimal heat sealing parameters in flexible packaging materials. Featuring five independent temperature zones, it allows for the simultaneous measurement of multiple sealing temperatures in a single test cycle. With precise control over dwell time, sealing pressure, and temperature via PID regulation, this device ensures consistent, repeatable results for quality control and research applications in food, pharmaceutical, and industrial packaging.
Performance Specifications
- Temperature Range
- 300 °C
- Temperature Deviation
- 0.2 °C
- Dwell Time Range
- 0.1s - 990h
- Sealing Pressure Range
- 0.15 - 0.7 MPa
Design & Construction
Sealing Jaws Configuration
- Heating System
- Double HeatingUpper Jaw HeatingLower Jaw HeatingPID Control
- Dimensions (L x W x H)
- 455mm x 320mm x 440mm
- Required Gas Pressure
- 0.7 MPa
Compliance
Applicable Standards
- QB/T 2358
- YBB 00122003
Key Features
Core Functionalities
- Five-group simultaneous temperature testing
- Proximity and pressure sensor control
- Uniform heating via aluminum encapsulated jaws
- Customizable jaw dimensions and surface shapes



