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HTT-02 Flexible Packaging for Sauce Hot Tack Tensile Tester

The hot tack tester detects the strength of the heat seal after heat sealing is completed and before cooling to room temperature.

HTT-02 Hot Tack Tester

HTT-02 Hot Tack Tester measures the strength of heat seals formed between thermoplastic surfaces immediately after the seal has been made and before it cools to room temperature.

Hot Tack Test Application

Hot tack test method can detect the physical properties of the heat seal layer, that is, pull the seal apart while it is still hot. This property is of vital importance for vertical form fill and seal process (VFFS).


ASTM F1921 Standard Test Methods for Hot Seal Strength (Hot Tack) of Thermoplastic Polymers and Blends Comprising the Sealing Surfaces of Flexible Webs

Hot Tack Test Principle

A sample strip is sealed by applying pressure from two flat heated jaws under defined conditions of temperatures, contact time, cooling time and pressure.

Hot Tack Test Process

Technical Features

HTT-02 Hot Tack Tester is a PLC controlled unit (industrial level stable) and HMI touch screen operated. Every part of the dart assembly and releasing mechanism are made strictly to standard. To ensure the accuracy of hot tack test results.

  • Both Method A and Method B described in ASTM F1921
  • P.I.D. temperature control
  • 7-inch HMI touching screen operation
  • PLC control inside
  • Aluminum encapsulated sealing jaws
  • Auto zeroing, overload and over travel protection
  • Test speed 200cm/min,1200cm/min or others
  • RS 232 port & professional software (optional)

Main Parameters

Sealing Temperature Ambient~250℃
Temp Accuracy ±0.2℃
Heat Seal Dwell Time 0.1~9999s
Hot Tack Dwell Time 0.1~9999s
Sealing Pressure 0.15MPa~0.7MPa
Sealing Jaws 50mmx10mm Teflon Coated
Sealing Jaws Heating Double Heating
Load Cell 200N(Optional:30N50N100N500N)
Accuracy 0.5 F.S.
Resolution 0.01N
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