The chamber packing machines (lid packers) are mainly designed for packing consumer goods, printed materials, textile products, but also foodstuffs, etc. Heat shrinkable films in semi-sleeves (PVC, PP, POF,...) are used for packaging. These machines are mainly characterized by: minimal external dimensions low operating costs very favourable price shrinking time, shrinking time and temperature inside the chamber are digitally adjustable As standard, the chamber packers are equipped with a holding of the chamber lid by a solenoid, triple film perforator for easy shrinking of the film (including adjustable perforation force) height-adjustable grid inside the chamber running wheels with brake. The operation of the machine is very simple: The operator inserts the packaged object between the films, slides the package into the shrink chamber and lowers the machine lid. Wrapping and shrinking of the film is automatic. The time when the chamber lid is held by the solenoid can be used by the operator to prepare the next bale. The APH-455 chamber wrapping machine is equipped with welding jaws of 550 x 420 mm.