Item Code: WP-01
Stretch wrap or stretch film is a highly stretchable plastic film that is wrapped around items. The elastic recovery keeps the items tightly bound.
It is frequently used to unitize pallet loads but also may be used for bundling smaller items. The development provides a film around one or more products with the aim to stabilize protect and secure the cargo from tampering or theft. There are two main methods of the Pallet Wrapping process; the Vertical Development and the Horizontal Development. The highly stretchable film is wrapped around the item while adjusting the tension, the film provides secondary protection. Other products which can’t resist the tension of the film can be, in principle be damaged. It is thus important that the product packaging are stabilized and maintained before and during the wrapping process.
Automatic or Machine Wrappers:
- Turntable Wrappers: The load to be wrapped sits on a turntable which spins the load relative to the film roll, which is housed in a carriage which can move up and down a fixed “mast”. Stretch is achieved by rotating the load at a faster rate than the film is fed.
- Rotary Arm Wrappers: In this system, the load remains still while a rotating arm turns around it wrapping the load. This system is used for light loads or for speeds which would otherwise cause the load to topple due to high rotation speeds.
- Rotary Ring Wrappers: The film is housed in a carriage on an horizontal ring in which the load remains static while the horizontal ring is rotating around the load and moves up and down vertically relative to the load, similar to a rotary arm stretch wrapper. The rotary ring technology is really a more balanced system with less wear and maintenance than the other available wrapping technologies. These wrappers are capable to reach the highest production capacities (up to 160 pallets/hour).
(** Above content is copied from Wikipedia Source link https://en.wikipedia.org/wiki/Stretch_wrap )