Laboratory & Production Heat Sealers

RDM's Laboratory & Production Heat Sealers have set the standard in precision and reliability for over 30 years. All RDM Heat Sealers are manufactured in UK, conform to ASTM F2029, and meet our stringent quality checks.

Laboratory Heat Sealers offer precise control of jaw temperature, pressure and dwell time enabling accurate determination of Heat Sealability. Setting these variables incorrectly in production is a costly business in immediate waste, spoilage and customer returns. The custom-made nature of modern flexible films, foils, coated papers and non wovens makes it vital to regularly check the heat sealing characteristics of every batch.

Medical / Production Heat Sealers provide flexibility and control dependant on your requirements. With a range of basic units through to our industrially designed semi-automated production units, and bespoke designs to meet your special requirements, we offer our experience and expertise to help you achieve better sealing quality.

Tray Heat Sealers enable small scale production of finished packs with a flexible lidding film for trays, blister packs, pots, capsules, pods, vials etc.

Selection Guide - Browse our standard units below or call us to discuss your needs. Choose from three user interface designs, (Touchscreen, Digital or Dial Gauge), and options in sealing bar design (e.g. flat metal to silicon rubber, metal to metal, metal crimp). We also manufacture adaptations for any special requirements.

Download RDM Overview of Testing brochure as .pdf

Download White Paper "Heat Seal Parameters of Flexible Polymer Film and and Finished Pack Seal Integrity - Quality Control Issues"

  • HS-2 Laboratory Heat Sealer

    For precise measurement of heat sealability of flexible packaging. Produces seals up to 50mm long x 5 to 25mm wide.

  • HSE-3 Laboratory Heat Sealer

    For production of high quality heat seals and/or precise measurement of heat sealability of flexible packaging. Produces seals up to 300mm long x 5 to 25mm wide.

  • HSG-3 & 5 Gradient Heat Sealers

    For rapid determination of heat sealability of flexible packaging. Produces 3 or 5 independently temperature controlled seals, up to 15mm wide x 30mm long.

  • HSB-1 Laboratory Heat Sealer

    For production of heat seals and/or measurement of heat sealability of flexible packaging. Produces seals up to 300mm long x 5 to 25mm wide.

  • HSX-400 Medical Heat Sealer

    Produces high quality heat seals in flexible medical packaging, max. 400mm. Validatable to ISO 11607. Touchscreen HMI/PLC controller, customisable.

  • HSX-600 Medical Heat Sealer

    Produces high quality heat seals in flexible medical packaging, max. 650mm. Validatable to ISO 11607. Touchscreen HMI/PLC controller, customisable.

  • HSX-800 Medical Heat Sealer

    Produces high quality heat seals in flexible medical packaging, max. 800mm. Validatable to ISO 11607. Touchscreen HMI/PLC controller, customisable.

  • HS-650 Production Heat Sealer

    For production of high quality heat seals in flexible packaging. Produces seals up to 650mm long x 5 to 25mm wide.

  • HSP-1 Pot / Tray Heat Sealer

    For lab scale / prototype production of repeatable high quality heat seals in pot / tray lidding film applications, up to 150mm diameter.

  • HSP-2 Pot / Tray Heat Sealer

    For lab scale / prototype production of repeatable high quality heat seals in pot / tray lidding film applications, up to 200mm x 300mm

  • TS-1 Tray Heat Sealer

    Production of high quality heat seals, for lidding films on trays, containers, pods, and blister packs.

  • HSX-1 Medical Heat Sealer

    ** Re-named: HSX-400 **
    Produces high quality heat seals in flexible medical packaging, max. 400mm. Validatable to ISO 11607. Touchscreen HMI/PLC controller, customisable.

  • HSM-4 Laboratory Heat Sealer

    For standard determination of heat sealability. Produces seals up to 50mm long x 5 to 25mm wide.

  • VS-1 Nitrogen Flush Vacuum Heat Sealer

    Precision Nitrogen Flush Vacuum Heat Sealer - for production of repeatable high quality heat seals in nitrogen flushed, vacuum sealed medical packaging.

  • HL-1 Low Pressure Laboratory Heat Sealer

    Precision Low Pressure Laboratory Heat Sealer - for accurate and repeatable determination of heat seal threshold in low pressure heat seal materials often used in tobacco and confectionery industries.