Sealing apparatus for plastic bag packaging, has pressure generating units which are arranged to pressurize sealing jaw with predetermined sealing pressure in different modes of operation

摘要

The sealing apparatus (8) comprises a sealing jaw (14) for sealing a packaging against a movable sealing jaw (16). The primary pressure generating unit (28) and secondary pressure generating units (24,26) are arranged in a base portion (15) relative to the sealing jaw, in order to pressurize the sealing jaw with predetermined sealing pressure in different modes of operation. The pressures generated by the primary and secondary pressure generating units are different. An independent claim is included for method for sealing plastic bag packaging.