Continuous Band Sealer Bag Closing machines

overview

On machines with water cooling bars the seals are cooled down under pressure between the steel bands. This gives incomparable smooth seals. The also possible air cooling, in comparison, is leaving wrinkled seals due to free shrinking. Further optional equipment fits the machine to difficult applications, e.g. dusty filling goods.

Method of operation

The bag closing machines series CBS utilize the continuous sealing process. The bag is guided at the seal level through the heating section by PTFE-coated steel bands. This guarantees the most efficient heat transfer and avoids direct contact of the plastic film with the heat source.
The heating section consists of heater bars, the numbers depending on machine type and required throughput. The automatic temperature control of the heater bars enables the user to run the machine constantly with a sealing process perfectly set to the bag specification.
After heat sealing, the bag passes through cooling bars or air blowers to cool down the seal. Carrier belts immediately below the steel bands, hold the top of the bag top and maintain control through the entire machine. At the same time the bag is supported by a conveyor (additional equipment).
Machines CBS-S equipped with sewing heads F100, DS-9, or N980A are used for the closure of woven PP fabrics bags with PE inner liner. They heat seal the inner liner and sew all layers of the bag.