Did you know that the lids typically used in canteens, restaurants or hot catering are fitted with silicone seals?
These are essential to seal the stainless steel containers leak-proof and to maintain the temperature.
DESMA machines of the 968 series are usually used for the production of the circumferential seal made of food grade silicone. Depending on the size and number of seals, machines from 160 tons to 700 tons are usually used. Depending on whether pasty or liquid silicone is fed, either a silicone tamping device or a metering system is used.
By the way, such stainless steel lids with directly injected silicone seal are also used for sterilization of medical instruments.

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