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Laboratory heat sealer

Device for the production of high quality heat seals and/or precise measurement of heat sealability of flexible packaging.

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Product description

Produces seals up to 300mm long x 5 to 25mm wide.


Precise control of heat sealing process variables (temperature, pressure, and time), enables an optimal balance of material specification, packaging machine speed and seal integrity. Accuracy and repeatability in laboratory heat seal testing is vital, and the HSE-3 provides precision digital controls for this purpose.



  • Choose heat sealing bar configuration, either single (upper) or dual (upper & lower, meets ASTM F2029)

  • User can easily change sealing bar for various surface areas or surface finishes

  • Accurate and repeatable seals due to precision ground sealing faces and jaw guidance system

  • Versatile applications for flexible materials, blister packs and pots

  • Low Maintenance – 12 months between calibrations

Technical specifications

General data
  • Seal width : 300 mm max. (Option to extend to 350mm)
  • Temperature control : Range: Ambient to 300°C, Accuracy: +/- 0.5%, Operating Accuracy: +/-2°C. Single (Upper) sealing jaw temperature control, or Dual (Upper & Lower) sealing jaw temperature control.
  • Pressure : Range: 0 to 100psi (6.8bar, 689Kpa), via precision regulator and digital display. Accuracy +/-5%, Repeatability +/- 0.02psi . Supply via clean and dry compressed airline or bottled air/nitrogen at 90 to 100psi
  • Dwell time : Range: 0.1 to 99.9 sec., Resolution 0.01 sec
  • Auto cycle & delay time : Delay Time Range: 0.1 to 99.9 sec For automatic cycling of sealing bars used in manual production environments. Assists with correct alignment of sample. Electronic processor controlled.
  • Jaw guidance system sealing jaws : Standard flat jaws 25mm x 300mm, constructed in aluminium with precision ground face. Lower sealing jaw with precision ground silicone rubber face. (See options below)
  • Environment : 5-50°C ambient operating temperature, RH 75% max (non-condensing)
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Power : 240V AC 50/60 Hz (110V AC voltage available on request)
Product weight and dimensions
W 50 x D 41 x H 49cm
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