Form-fill-seal, pouch-making, flow-wrap and carton-sealing machines all need consistent heat at the sealing jaws. Uneven or failing heaters cause weak seals and rejected packs.
Heaters for packaging applications
- Cartridge heaters for sealing jaws and bars
- Strip heaters for sealing plates
- Formed tubular heaters for shrink tunnels
- Built-in thermocouples for accurate seal temperature
- Temperature controllers
Tips for longer heater life in sealing jaws
- Keep a close fit between heater and jaw bore
- Use flexible or braided leads where the jaw moves
- Choose a watt density that suits the sealing temperature