HSB-1 Laboratory Heat Sealer

HSB-1 Laboratory Heat Sealer is used for the production of heat seals and/or measurement of heat sealability of flexible packaging. Produces seals up to 300mm long x 5 to 25mm wide.

Precise control of heat sealing process variables (temperature, pressure, and dwell 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 HSB-1 Laboratory Heat Sealer provides a standard range of controls for this purpose, that may be upgraded as required to precision digital controls.


  • Single (Upper) sealing jaw temperature control or Dual (Upper & Lower) sealing
    jaw temperature control
  • Sealing jaw dimension/profile as required (inc. Matched crimp 120° x 1.8mm pitch)
  • Upgrade to digital pressure transducer/readout, and digital dwell timer
  • Stainless Steel sealing jaws
  • Teflon Coated Tape or Teflon Coated Jaws
  • Footswitch
  • PVC Dust Cover
  • Alarm package for temperature High/Low, selectable
  • Cold seal system
  • Digital thermometer with s/s band probe to check jaw
  • Pressure calibration of standard surface area jaw face
  • Temperature digital controller, pressure and dwell time dial controllers (upgrade to precision digital controllers as required)
  • Jaws constructed in aluminum and silicon with precision ground faces
  • Range of jaw face surfaces including Matched Crimp and Teflon Coating
  • Benefits:

    • 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