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Automatic Rotary Arm Machines

Automatic rotary arm (ARA) machines offer another principal to wrapping products. The pallet or product is loaded within the frame of the machine. When the machine starts the rotary arm fixed above the centre point of will revolve around the pallet.

As the arm revolves the film is wrapped around the pallet and the carriage on the arm moves upwards to the top of the pallet. When the amount of top wraps required is reached then the carriage descends down the rotary arm to complete the wrap cycle.

ARA Automatic rotary arm

ARA machines are generally used for a high volume of pallets but are also used awkward shaped or when a spiral wrapper is not the solution to wrapping because the pallet is unstable until wrapped.

All machines are supplied with a cut and clamp mechanism, this hold the film in the clamp while the start of the wrap cycle commences,after the first complete revolution the film is trapped by the first wrap and then released by the clamp, the removes the need for manual attachment of the film. After the cycle is complete the film is re-clamped ready for the next pallet. A hot wire cutting device on a pneumatic arm the moves into the line of film between the clamp and pallet and cuts the film.

A top platen can be fitted to secure light or unbalanced loads while wrapping. A wiping device can also be fitted to the machine to wipe the tail end of the film back on to the pallet.

ARA machines can be either stand alone machines or integrated into a conveyor system which automatically deliveries the product into a completely automated wrapping system.

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Unitech is the leading supplier of high quality stainless steel and aluminium equipment for the food, beverage, pharmaceutical and other hygiene conscious industries.

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