BEUMER twin-belt turning device for palletising

BEUMER Group has added to its product range the twin-belt turning device, which allows for gentle palletising of bags filled with bulk material.

An alternative to existing clamp-type turning devices, the device works with two separately driven belt conveyors which, by applying a differential speed between both belts, turn the bag 90° or 180°. This gives a dimensionally stable bag, which helps achieve stable bag stacks for products with particular flow behaviour and for soft bags.

The device is used with the BEUMER paletpac high-capacity palletiser. With a stack height of up to 2400 mm, the paletpac palletises bags filled with bulk material on any commonly used pallet size and in all technically feasible packing patterns.

The variable bag and pallet sizes are adapted by rapid parametric setting with multiprogramming. This system puts the bags into the desired packing pattern in a quick and gentle way.

Once the desired packing pattern is set, the twin-belt turning device turns the bags with two separately driven belts arranged parallel to one another. The rotation of the bag is initiated by the net weight of the bag and by the different belt speeds.

The speeds and bag rotation are adapted to the different bag sizes by a self-optimising dynamic active control loop. Each belt conveyor is provided with a synchronous servo drive, which is responsible for accelerating and decelerating during the turning process.

According to the company, this system handles bags more gently than with the clamp-type turning device. The efficient drive technology and elimination of compressed air reduce energy use, and the module operates with little noise. Existing palletisers can easily be retrofitted.