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Thermoforming Vacuum& Gas-flushing Packaging Machine

Itis also named film stretch vacuum/MAP packing machine.The equipment consists of two kinds of working chamber:Thermoforming chamber&Heat sealing chamber.Works such as vacuumizing&gas-flushing are all completed in the same place of heat sealing chamber.Pack materials consist of aluminium foils and a variety of films,such as: PE/CPP/PET/PP/BOPP/BOPET/POF/PVC,transparent or opaque, printed or unprinted,flexible or rigid.The film will become soft and be shaped as per the Die's shape under heating and air pressure(positive&negative) in the forming chamber,some cases an auxiliary mould(plug) will assist the shaping process.There are two kinds of films/foils:Top film&bottom film according to their usages.Generally,film thermoforming refers to the bottom film,top film is the cover film.Top&bottom films will be sealed together in the heat sealing chamber. To get a more beautifully triaxial vision of the package, the top film also can be formed into some different shapes,it is call 'Top Film Thermoforming'.The whole process is under precisely control of PLC,continuously and automatically.We only use top quality materials/compoments from the superior suppliers around the world to ensure the stable quality and high efficiency of our equipments.

Packaging under vacuum extends the shelf life of products, since the biochemical degradation of the product is slowed down by the removal of the atmosphere. In case of packs with modified atmosphere, the atmosphere in the pack is replaced with a gas mixture matched to the product in order to maintain the form,colour and freshness of the product. This modified atmosphere packaging usually consists of carbon dioxide, nitrogen and oxygen.In the production of skin packs, trays and skin films are used that enclose the product tightly and seal the entire surface of the tray.


Skin packing is suitable for high grade frozen meat, seafood, sausage, bacon and so on.Full automatic vacuum skin packaging has become a trend of high-end packaging of meat products.It  produce trays and finish vacuum skin packaging by fully automatic mode.The skin film will be firmly sticked to the bottom of the trays and the packaged is firmly attached to the tray under the tension and compression of the film to produce a three-dimensional transparent packaging, decrease the cost of transportation and storage, and with moistureproof, prevent oxidation, prolong the shelf life and,and also has the advantage of shockproof.


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  • Functions
  • Technic Datas
  • Features
  • Package samples
  • Videos
  • Preparation Functions:

    (1) Interface and program that can be connected to the feeding robot is reserved.
    (2) Interface for volumetric automatic metering system is reserved.
    (3) Interface for all the popular electronic scale/weighers is ready.
    (4) Interface for the automatic liquid filling is reserved.

    (5) Code, date and batch number,and various messages can be printed on each package when printer installed.


    Optional Functions/Compoments:
    (1) Vacuum or None vacuum
    (2) Mixed gas/Nitrogen inflating
    (3) Top film thermoforming.
    (4) Format/Dies fast change system
    (5) Nitrogen producer
    (6) Inkjet printer

    ①Top film
    ②Bottom film
    ③Thermoforming chamber
    The bottom film soften under heat and is shaped as per the Die(mould)'s design by combined effect of compressed air&vacuum.
    ④Loading area
    Shaped cavities on the bottom film can be filled with materials manually or automatically.
    ⑤Sealing chamber
    Air in the shaped cavities is exhausted through a vacuum tank,meantime nitrogen or another mixed atmosphere is flushed into the cavities,then the top film is applied&sealed to the bottom film under heat as per the sealing die's design.
    ⑥Cross cutting & longitudinal cutting units
    Cutting knives separate individual packs from the sealed films.


  • Technical datas of typical types LZ320  LZ420  LZ520


    Model

    LZ320

    LZ420

    LZ520

    Width of top film

    297mm

    397mm

    497mm

    Width of bottom film

    322mm

    422mm

    522mm

    Chamber sizes

    300 x (200-400) mm

    400 x (200-400) mm

    500 x (200-600) mm

    Maximum forming depth

    80mm

    80mm

    80mm

    Producing capacity

    1000-11000 pcs/h

    1800-16000 pcs/h

    2400-18000 pcs/h

    Vacuum

    ≤200Pa

    ≤200Pa

    ≤200Pa

    Compressed air

    ≥0.6MPa

    ≥0.6MPa

    ≥0.6MPa

    Pumping rate

    1.1~1.4 m³/min

    1.2~1.6 m³/min

    1.5~2.0 m³/min

    Cooling water

    ≥0.15MPa

    ≥0.15MPa

    ≥0.15MPa

    Working speed

    5-9 step/min

    4-8 step/min

    4-6 step/min

    Work environment

    Moisture:≤80%Temperature range:-5°C ~ 35°C

    Power supply

    220V/380V/400V/415V 3phase 50Hz/60Hz

    Power rate

    7 KW

    12 KW

    14 KW

    Dimensions

    4500mm X 710mm X 1800mm

    7000mm X 900mm X 1900mm

    8000mm X 1000mm X 1900mm

    Weight

    1300kg

    1800kg

    2100kg

    Free mould

    2 sets

    2 sets

    2 sets



    Dimensions/weight,power are approximate datas for reference,actual cases maybe different.

  • 1.External high vacuum pump from Busch Germany,no pollution.
    Busch Vacuum Pumps and Systems is one of the largest manufacturers of vacuum pumps in the world. Its headquarters is located in Maulburg (Germany), where the main German manufacturing facility is located.
    2.Banner American photoelectric tracking system.
    3.Equipped with cooling system for heat-sealing chamber.
    4.Power off phase and reverse phase protection.
    5.Electric leakage protection, automatically cut off power supply when leakage occur, to protect safety of operators.
    6.Pneumatic components from AirTAC Inc, key parts (Pneumatic Festo/Vacuum valve/Valve Terminal)from Japan SMC.
    7.Aluminum alloy integral side plate(Patent No.ZL2004200390983),high strength good straightness,hardly to distort.
    8.Push-pull Siemens smart touch screen(include communication cables) and Siemens PLC.
    9.Film moving controller&driver made by Mitsubishi or by Siemens.
    10.Guide rail system of printer made by German Igus with Panasonic servo driving system.
    11.Maintenance-free linear bearings of the cross-cutting knife made in Germany.
    12.Panasonic inverter speed-regulating system(include communication cables).
    13.Temperature sensors and controllers made by Siemens Germany or made by Omron Japan.
    14.Stainless steel chain from REGINA Italy.
    15.Pneumatic tensioning mechanism, pneumatic brake, prestress adjustable for both top and bottom film.
    16.Equipped with film deviation automatic correcting system.
    17.Equipped with film tension regulating system, the computer can automatically identify the sizes of rollers, automatically adjust tension to keep the same stress of upper and lower films.

    Automatic film thermoforming packaging machine characterizes a high degree of automation, high production efficiency and better packaging effects among all vacuum packaging equipments.Its advantages are:
    A remarkable feature of thermoforming packaging machine is that the equipment realizes automatically producing of tray/bag/pouch,the packaging shapes and sizes can be flexibly designed,you need not buy a prefabricated packing container.There are a big range of films to be chosed,flexible&rigid,transparent or opaque,printed or unprinted.Each kind of film has its features in temperature and stretching performance.
    The equipment can produce more beautiful packing effects and a longer shelf life of food comparing with many other vacuum packing machine,because it has the functions of vacuumizing&gas-flushing(MAP).And customized moulds make the products more packing designs.Our packaging machines are equipped with two sets of moulds for free.
    It is a multi-functional packing equipment,can be equipped with multiple sets of molds to realize multiple packaging designs. Each set of mold corresponds to a packaging design of shape/sizes.The moulds can be replaced manually or automatically.Multi-function is to achieve a variety of functions on a device, and these functions as auxiliary functions, can be added according to the characteristics of the product, such as: automatic liquid filling device, gas-inflating, perforating/punching, or MAP(Modified Atmosphere) function.
    High degree of automation, the machine can be matched with automatic feeding device, liquid (soup) automatic filling device, automatic printing system, robot automatic unloading device,to achieve a fully automatic production line, greatly reduce manual intervention.Because of its high degree of automation, unlike the traditional swing or clamshell vacuum packaging machinery which needs to be carefully manually placed with packaged materials, so its efficiency is very high, greatly reduce the labor intensity, save manpower, save costs.
    The technology of film thermoforming packaging solutions maximally ensure the health of the production environment.Food hygiene is a matter of great concern to consumers.The special waste recovery system of our packaging machine can automatically recycle the cut waste to avoid environmental pollution.


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