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Markus Wolfmajer
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Principal palletizing machine


Fully automatic high-speed high-level palletizer for up to 2400 units per hour for bags and boxes.


The PRINCIPAL high-level bag palletizer forms layers of bags which are fed into the unit by a belt conveyor and loads the layers on top of the pallet which is lifted by an elevator. After a pre-set number of layers is reached, the pallet is lowered and automatically transported away by a roller conveyor.

In order to facilitate an ideal and flexible layer formation, bags can be turned into a pre-defined position. This is executed by a servo motor driven overhead turning device. The bags can then be turned into an optimal position, so that stitching tabs are positioned inwards, or barcodes can be read from the outside of the layer.

The individual bags are pushed from the layer forming belt onto the load plates by a so-called layer pusher. The synchronous-belt drive of the pusher allows the exact positioning of the bags. The motor-driven front and side pushers guarantee a stable, rectangular layer.

The completed layers are slipped off the load plates onto the pallet in the elevator. The pallet gets pressed against the load plates once they are closed. This layer pressing maximises the stability of the pallet.


Fully automatic palletizing system

Reliable and proven concept

Sturdy and compact design

Motor driven movements

High energy efficiency

Stable stacking quality

High flexibility

CE certified

  • Principal high-level bag palletizing system
  • Principal high-level bag palletizing system
  • Principal high-level bag palletizing system
  • Principal high-level bag palletizing system


The Industry

Building material




Animal food


Sugar & Salt

Rice & Flour

all kind of bulk material


Bags & Boxes

Pillow bag

Gusset bag

Polypropylene bag

Polyethylene bag

Paper bag

Plastic Box

Cardboard Box


The Solution

Principal with

fully automatic

-bag infeed

-bag pressing

-bag turning

-layer forming

-layer stacking

-layer pressing

-pallet outfeed