Pallet Stretch Wrapper

Pallet stretch wrapper has a simple principle that an undersized film is stretched upon the pallet by stretching over it.

Types

Rotating pallet stretch wrapper Rotating pallet stretch wrapper wraps the rotating pallet in thermoplastic film or net, applied in a spiral pattern from a reel.

Fixed pallet stretch wrapper The fixed pallet stretch wrapper wraps a stationary pallet in a thermoplastic film in a spiral form, rotating the film around the pallet. Two reel pallet stretch wrapper The two reel pallet stretch wrapper is same as fixed pallet stretch wrapper but involves two reels of the film. Stretch hood applicator The fixed pallet stretch wrapper wraps a stationary pallet in a thermoplastic film in a spiral form, rotating the film around the pallet.The Stretch hood applicator wraps a pallet in thermoplastic film, which is supplied as a reel of lay flat tubular film. A length of film is sealed at one end and then opened, stretched and placed over the loading unit. An undersized film hood is stretched to the exact outer circumference of the pallet. The grippers that stretch the film secure it underneath the pallet. Hood stretching combines the best of shrink and stretch wrapping techniques. It involves low costs and optimum stability. Core Brake stretch wrapper Core Brake stretch wrapper technology is another low cost involving technique. The pallet is kept on a turntable and the film attached. The table is then rotated such that the film is pulled by the pallet weight. The brake on the machine creates resistance and enables the film to stretch. The breaks can be mechanical, electronic, pneumatic or hydraulic. This technique is used for stable pallets. These machines can also work with pre stretch films that have higher load retention capacity. Power Pre-Stretch stretch wrapping In Power Pre-Stretch stretch wrapping the pallet is placed on the turntable with the film attached. The film reel passes through a series of rollers that pre stretches the film before it is applied. Since the film is pre stretched not much force is applied while actually wrapping. This makes the technology suitable for fragile items. The film tends to regain its original tension after wrapping and this gives a secure hold on the pallet. Fully automatic machines could be rotary arm systems, rotary turntable systems and ring wrapping systems. They all can have pre stretching systems. Rotary arm technology is best suited for high volume and heavy pallets, as the pallet remains stationary.

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