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Thermoformers - method of operation
Method of operation with diagram
Forming, filling and sealing are carried out on the same machine. Multivac Thermoformers
operate in cycles. At the end of each cycle, the web of packs moves along one cut-off length.
(1) Packaging material for the base web (thermoformable film) is unwound from the reel.
(2) It is heated in the forming die and formed into pockets/trays.
(3), (4) The formed pockets are loaded manually or automatically.
(5) The top web of packaging material (lid film) covers the filled pockets/trays.
(6) The air is evacuated from the sealing die and protective gas is added if required. Then the pack
is sealed by the application of heat and pressure.
(7) The web of packs is cut across the machine direction initially
(8) Production of the individual packs has been completed after the longitudinal cutting operation. |
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Application areas
Multivac FFS packaging machines are the ideal choice for fully automatic packaging of products
of the same kind. Vacuum, modified atmosphere, skin and blister packs can be produced on
these machines.
Advantages  | Very low packaging material and personnel deployment costs |  | High level of automation |  | Individual pack design possible |  | Simple and reliable operation |
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Typical applications:
– Portion packs for self-service retail outlets
– Bulk packs for meat and cheese, for loss-free
maturing and for storage purposes
– Sterile medical products
– Technical articles produced industrially
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Pack dimensions:
– Smallest pack about 20 x 50 mm
– Biggest pack about 600 x 1 000 mm
– Pack depth 0 to 190 mm
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Films:
– About 25 µ to about 1 500 µ thick for flexible
packs and rigid containers
– Sealable monofilms, multilayer films, foamed
films, laminates with an aluminium layer, paper
and Tyvek webs
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Quality and convenience right down to the smallest detail
It is no coincidence that Multivac is the world market leader for FFS packaging machines.
A Multivac gives you optimum functional efficiency of the individual components and maximum
performance in their combined operation. Whether you are packaging on the small R 120 or
on complex packaging lines.  | High-quality materials:
The most important mechanical parts are
made out of stainless steel and anodised aluminium.
|  | Environmentally sound:
Minimal energy and water consumption.
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| Reliable:
– E.g. machine frame: patented profiles that are
extremely rigid
– Lifting units are self-contained systems:
the machine frame is not affected by process forces
– Sub-assemblies and functions have been tried
and tested in thousands of machines,
so they work flawlessly
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Maximum hygiene:
– Materials and design meet the most exacting of
hygiene standards
– Simple cleaning and disinfection
– When frequent wet cleaning is required:
program for cleaning and relubrication
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Convenient operation:
– Microprocessor and large display
– Program memory as standard
– Optional extra: web terminal with a touch screen
for machine access throughout the plant
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Safe and easily serviced:
– CE and GS mark, testing by independent institutes
– High-quality, modular components
– Optional lubrication units
– Optional extra: validation
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