Continuous band heat sealing utilises two endless belts that travel over hot heating elements; the two travelling belts allow heat to transfer through them sealing the thermoplastic, often a bag
The machines themselves tend to have a travelling conveyor that the filled bag is carried on whilst the top of the sack, bag or pouch travels through the dual belt whilst being sealed on the move
Techbelt offer endless, high temperature, heat resistant belts to perform this task that we manufacture in house; the belts are constructed by laminating two layers of PTFE coated glass cloths together, usually two layers of 0.08mm thick material, and off setting or stepping them.
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