Tetra Pak Bulkpak Heat Sealers for bulk bags or bins

Bulkpak Heat Sealers from Tetra Pak are designed for all bulk bags or bins with a barrier liner suitable for heat sealing. The sealers are said to give a perfect seal regardless of the film thickness variations. This is achieved through the airbag action securing even pressure across the width of the bag.

The heat sealers can be used with a wide range of plastic liner materials due to the flexibility of setting heat-sealing parameters, such as heat sealing and cooling temperature, sealing time and pressure.

The bag plastic liner is placed between the heat-sealer jaws. Once the operator presses the two-hand start button, pressure and a heat impulse are applied to the sealed surfaces for a preset time, providing an even seal across the full width of the bag. The sealer jaws open automatically once the seal tip surface cools down to a safe temperature.

A ceramic coated seal bar provides long-lasting electrical insulation between the aluminium seal tip and the heating element. A high-quality uniform seal is achieved by maintaining the preset seal temperature during the heat sealing cycle. A temperature controller monitors and performs necessary temperature adjustments with a frequency of 50 Hz.

The heat sealers’ design is compliant with operator safety and with explosion prevention and protection regulations. Easy operation solutions allow work to be carried out by all personnel. Maintenance of the heat sealers is simple, with only a few minutes required to replace the seal bar.

The Bulkpak Standard Heat Sealer uses a pair of parallel-wired heating elements located on the front bar, with heating of the plastic liner surfaces from one side only. The two identical seals, approximately 6 mm wide, are produced simultaneously.

The Bulkpak Dual Heat Sealer uses heating elements that are located in both seal bars. This heats both plastic liner surfaces at the same time and is recommended for relatively thick or uneven plastic liners. It produces a single seal that is approximately 6 mm wide.