GT4s

Automatic, large-capacity, high-speed, in-line tray sealing system designed to cut labour costs

It combines high throughput with rapid tool-changing and space-saving compact design

Capable of up to 140 Atmospheric packs per minute with a 7 impression tool, the GT4s system is packed with user-friendly benefits including our unique Promotion modular conveyor system.

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

Designed to accept randomly spaced trays from any conveyor and can be fully integrated with other line equipment.

  • 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
    • High accuracy tool alignment system provides a constantly accurate sealing and/or film-cutting relationship with the tray flange profile
    • Simple design and operation
    • Film snap detection
    • 'Auto Tool' Touch of a button tool change system, automatically locates and connects tooling to machine functions including all MAP options
    • All around seal and contoured film-cut with skeletal film rewind
    • Automatic seal opeartion with accurate seal dwell time
    • Self-centering tray guides
    • Automatic film roll clamping
    • Food industry approved hygienic construction and wash-down protection
    • Full Category 3 guarding
    • User friendly, menu-driven control panel with step-by-step prompts, error and status displays, and useful batch pack counter
    • Recipe handling of machine settings
    • Self diagnostic system
    • Pendant mounted colour touch screen HMI control for full double-sided operation
    • Recipe driven auto machine set-up for tool change
    • On-screen data capture and trends with wireless connection option
    • Pot crush avoidance system
    • Active film tension
    • Integration of peripheral equipment, such as: infeed and outfeed conveyors, checkweighers, metal detectors and printers
    • QR conveyors with quick release belts for easy hygiene and maintenance
    • Eseal® - high-performance, high-precision, high-force, energy-efficient, electric seal system that boasts a massive increase in seal force.
    • Promotion - a high accuracy continuous motion tray infeed system, which increases production speed whilst reducing machine duty

    GT4s Sealing capacity

    No of trays Length Width Depth Diameter
    One 300mm 936mm 105mm 300mm
    Two 300mm 481mm 105mm 300mm
    Three 300mm 312mm 105mm 312mm
    Four 300mm 228mm 105mm 228mm
    Five 300mm 177mm 105mm 177mm
    Six 300mm 143mm 105mm 143mm
    Seven 300mm 119mm 105mm 119mm




    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
    • Active conveyors to allow the machine to be used as a straight through conveyor when packs don't require sealing
    • Back-to-back machine configurations
    • Optional integration of peripheral equipment, such as: denesters, fillers, multi-head weighers, laser coders, labellers
    • eWON - a machine connection system to deliver real time data and error condition support, remote setup, and software upgrades, using a customer's existing IT network
    • I-film - intelligent film reel monitoring system which actively adjusts film tension based on reel diameter to increase print quality and film reel efficiency, reduce component duty, and provides a film end warning system
    • Protect - a contactless machine login and audit trail system
    • Sale, Lease Purchase and Rental options available

    GT4s Specifications

    Height 2187mm
    Standard Length 3914mm
    Width 975mm
    Weight 1500kg
    Electrical Supply 400V 3 phase + neutral (fused at 16A)
    Electrical supply

    490V 3 phase (fused at 20A)

    600V 3 phase (fused at 15A)

    Metric

    Imperial

    Pressure

    Flow

    Pressure

    Flow

    6 Bar

    50L/Min

    87psi

    1.7CFM

    Transformers are available to accommodate the electrical supplies in different countries

    GT4s Production speed

    Up to 20 cycles per minute Standard Seal
    Up to 15 cycles per minute Gas Flush
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  • Images
  • Packaging Materials

    Trays

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

    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