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Home » Products » Heat Seal and Hot Tack Testers » Gradient Heat Seal Tester

Gradient Heat Seal Tester

Gradient Heat Seal Tester
Gradient Heat Seal Tester
Product Code : CLASSIC 513
Product Description

Gradient Heat Seal Tester

We are one of the eminent manufacturers, suppliers and exporters of Gradient Heat Seal Tester. Presented tester is utilized for the fixation of heat seal-ability of coated paper, plastic films, composite films, and several other sealing films below convinced sealing pressure, speed, and five dissimilar temperatures. Additionally, we promise our patrons that planned tester is severely checked for customary qualitative limits to confirm its perfect nature. To diverse demands of our clients, we are providing this Gradient Heat Seal Tester in numerous practical stipulations at a reasonable price.


  • This test tool imitates to the subsequent standards: ASTM F2029Note2, YBB 00122003, QB/T 2358,

Note2 : The 10 sealing jaws are entirely heated sealing jaws as essential by ASTM F2029. If essential, the lower sealing jaws can be substituted with unheated sealing jaws.


Professional Technology

  • Digital P.I.D temperature control technology ensures preset temperature to be reached rapidly without any fluctuation.
  • Wide range control of temperature, pressure and time could meet various test conditions.
  • Manual or pedal switch control, as well as anti-scald design provides convenient and safe operating environment.
  • The instrument is controlled by micro-computer with LCD, PVC operation panel, and menu-interface, which is convenient for customers.
  • The instrument could test 5 groups of specimens at different temperature simultaneously, and accurately and efficiently obtain heat seal ability parameters of the tested specimens.
  • 5 upper sealing jaws are individually controlled by 5 gas cylinders which ensure the stability of heat sealing process.
  • The heating tube joints can be easily installed or removed for rapid replacement.
  • Independent temperature control of upper and lower sealing jaws gives multiple combinations of test conditions.
  • Equipped with micro-printer for convenient data saving, exporting and printing.

Test Standard

  • This test instrument imitates to the following standards: QB/T 2358, ASTM F2029, YBB 00122003

Applications :

The instrument is vastly applicable to the purpose of heat seal aptitude of:

Basic Applications

Films with Smooth Surface

With plastic composite films, plastic films, paper-plastic composite films, aluminized films, coextruded films, aluminum foils, aluminum foil composite films, and several others. Heat sealing exterior should be even and width can be planned grounded on worker necessities. Device could instantaneously achieve sealing operations at 5 dissimilar temperatures.

Films with Decorative Pattern Surface

With plastic films, paper-plastic composite films, geomem branes, plastic composite films, aluminum foils, aluminized films, aluminum foil composite films and various others. Heat sealing outward can be considered founded on user rations. Instrument could concurrently accomplish sealing processes at 5 diverse temperatures.



Covers of Jelly Cups

The instrument is unruffled of the lower and upper jaws. The higher one is round-shaped, while the lower one is designed as a sample mold whose size accurately fits jelly cup. Place the jelly cup in the mold of lower jaw, and sealing process can be done by upper jaw strident. (Customization required)

Plastic Flexible Tubes

The termination of plastic elastic tubes is positioned in between lower jaws and upper jaws, and then sealed to system a package.

Technical Specifications :



Sealing Temperature

Room temperature- 250oC

Sealing Pressure

0.1 MPa - 0.7MPa

Dwell Time

0.1 - 999.9 s

Temperature Accuracy


Temperature Gradient


Gas Supply Pressure

0. 1 MPa ~ 0.7MPa (not in supply scope)

Port Size

8 mm PU Tubing

Sealing Area


Instrument Size

576 mm (L)x430mm (W)x510 mm (H)


AC 220V 50Hz

Net Weight

72 kg

Configurations :

Standard Configurations

Pedal Switch, Main body, and Micro-printer

Optional Parts

Communication Cable


1. The gas stream port of device is 8 mm PU tubing;
2. Customers will require to fix for gas supply.


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