GTR

Semi-automatic, two-station, rotary-table, tray sealing machine

Capable of up to 30 Atmospheric packs per minute with a 2 impression tool, the GTR machine is the workhorse of the ready meal industry. It is fully portable with automatic film-feed. Ultra-reliable and easy to operate, the GTR is used around the world and has become the benchmark for portable tray sealing equipment.

Optional ‘free-flow’ gas flush Modified Atmosphere Packaging (MAP) available for extended shelf life.

The quick-release tooling allows the user to change from one tray size to another in less than two minutes.

  • Atmospheric Seal
  • Gas Flush
  • Hermetic Shrink
  • Vacuum/Gas
  • Skin Pack
  • Skin Plus
  • Skin Deep
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  • Features

    Standard design features and benefits

    • Two minute tool changeover
    • Low maintenance polymer bearings
    • Simple and accurate film-feed system with easy film route
    • Maintenance friendly robust construction
    • Accurate temperature and seal pressure control
    • Fully portable castor mounted
    • High accuracy tool alignment system provides a constantly accurate sealing and/or film-cutting relationship with tray flange profile
    • Simple design and operation
    • All around seal only (No Cut) for packs with pre-cut or hinged lids
    • All around seal and contoured film-cut with skeletal film rewind
    • Portable, with separate compressor (optional extra). Can be operated from a standard 220-240 VAC supply
    • Automatic seal operation with accurate seal dwell time
    • Food industry approved hygienic construction and washdown protection
    • High accuracy tool alignment system incorporating revolutionary table damping system
    • Full Category 3 guarding
    • Standard and Gas Flush Tooling can be upgraded to operate on the GT0 in-line machine• Two minute tool changeover 
    • User friendly, menu-driven control panel with step-by-step prompts, error and status displays, and useful batch pack counter

    GTR Sealing Capacity

    Number of trays

    Length

    Width

    Depth

    Diameter

    One

    270mm

    439mm

    105mm

    270mm

    Two

    270mm

    207mm

    105mm

    207mm

    Three

    270mm

    104mm

    105mm

    104mm

    Four

    270mm

    71mm

    105mm

    71mm

    Options available

    • Free flow gas flush MAP (Modified Atmosphere Packaging)
    • High Oxygen (O2) gas flush
    • CLOSE CUT - Method of maximising throughput and reducing film waste
    • Inboard Cut (IC) Option to provide 'form, fill and seal' tray presentation
    • Film coding and printing
    • Foil crimping
    • Deep tray / pot machine configuration
    • Pastry blocking
    • Pharmaceutical Blister Packaging Machines
    • Sandwich Pack Sealing for Board, Recyclable and Non Recyclable Plastic
    • Intergration of peripheral equipment
    • HOT ROD - long lasting, water-resistant seal, tool-heating element giving reduced energy consumption especially developed for sealing Smooth Wall Foil Trays
    • Portable, with separate compressor. Can be operated from a standard 220-240vac supply
    • Sale, Lease Purchase and Rental options available

    GTR Specifications

    Height

    1698mm
    Standard Length 1155mm
    Width 1020mm
    Weight 320kg
    Electrical supply 230V single phase (fused at 16A)
    Variations 208V 2 phase (fused at 15A)

    Metric

    Imperial

    Pressure

    Flow

    Pressure

    Flow

    6 Bar

    140L/Min

    87psi

    5CFM

    Transformers are available to accommodate the electrical supplies in different countries

    GTR Production Speeds

    up to 15 cycles per minute standard seal

    up to 12 cycles per minute gas flush

  • PDF
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  • Images
  • Packaging Materials

    Trays

    • C·PET
    • A·PET
    • R·PET
    • Polypropylene
    • PVC
    • Styrene
    • Board
    • Paper
    • Smooth Wall Foil
    • Cardboard Sandwich Skillets

    Lidding

    • Co-extruded and Laminated Polyester Films
    • Foil
    • Board
    • Paper
  • MAP

    Modified Atmosphere Packaging

    Modified Atmosphere Packaging is a food packaging method where the Earth's normal breathable atmosphere has been modified by either a single gas or a mixture of gases. It is generally used with a barrier film with low oxygen transmission and is sometimes referred to as Gas Flushing.

    The atmosphere in an MA package may contain N2, O2, CO2. Each food product has its own ideal gas mixture to ensure the longest shelf life possible.

    The Gases

    Carbon dioxide (CO2)

    Carbon dioxide inhibits the growth of most aerobic bacteria and moulds. Generally speaking, the higher the level of CO2, the longer the achievable shelf-life. In most cases where CO2 is needed to control bacterial and mould growth, a minimum of 20-30% is required. However, CO2 can be absorbed by fats and water and in some cases cause pack collapse.

    Nitrogen (N2)

    Nitrogen is an inert gas and is used to exclude air; it is also used as a balance gas (filler gas) to make up the difference in a gas mixture. It helps prevent pack collapse where the CO2 has been absorbed. For modified atmosphere packaging of dried snack products, 100% nitrogen is used to prevent oxidative randicity.

    Oxygen (O2)

    In many foods oxygen should be excluded but there are often good reasons for it to be present in the map gas mixture. 

    • To maintain fresh, natural colour in red meat
    • To maintain respiration (in fruit and vegetables)
    • To inhibit growth of anaerobic organisms (in some types of fruit and vegetables)

    Ideal residual oxygen levels are dependent upon each customer's shelf life trials and tolerances.

    Food manufacturers should seek the advice of Food grade gas suppliers before deciding which gas supply mode is the most appropriate for their needs.

    Guidelines have been quoted in the CCFRA (Campden and Chorleywood Food Research Association) map guide document.

    Product Nitrogen
    N2
    Oxygen
    O2
    Carbon Dioxide
    CO2
    Achievable Shelf Life
    Days
    Beef   70–80 20–30 5 to 8
    Lamb   70–80 20–30 5 to 8
    Pork   70–80 20–30 5 to 8
    Chicken various   70–80 20–30 10 to 14
    Chicken various 50 20 30 10 to 14
    Chicken various 70   30 10 to 14
    Turkey   70–80 20–30 7 to 14
    Turkey 70   30 10 to 14
    Duck   70–80 20–30 10 to 14
    Sausage   70–80 20–30 10 to 14
    Bacon 70   30 14 to 21
    Cooked Meat 70   30 14 to 21
    Cooked Chicken 70   30 14 to 21
    Charcuterie 70   30 14 to 21
    Raw White Fish 30 30 40 4 to 6
    Raw Oily Fish 70   30 4 to 6
    Crustaceans 30 30 40 4 to 6
    Cooked Fish 70   30 7 to 21
    Ready Meals 50–70   30–50 7 to 14
    Sandwiches 70   30 3 to 5
    Pies/Sausage Rolls 70   30-50  7 to 14 
    Quiche 70   30–50 7 to 14
    Salads/Vegetables 90 5 5 5+
    Hard Cheese 50–70   30–50 2 to 12
    Pasta 50   50 3 to 4
    Bakery 0–30   70–100 2 to 12