An orbital stretch wrapper is a means of applying stretchable plastic film to a load, consisting of a roll (or rolls) of stretch wrap supported on a vertical rotating ring and a means of passing a load through the ring's eye horizontally. Several designs are available.[1][2]
The item or load can go through the ring on a conveyor or can be placed into the ring by a pallet truck. Small loads can be suspended within the rotating ring by hand. Stretch is achieved by creating tension between the load and film roll using a brake or gear ratio system.
References
edit- ^ US 6729106, Wiley, Robert B., "Orbital pallet wrapping machine and method", published 2004-05-04
- ^ US 4723393, Silbernagel, Peter, "Twin roll laminated packaging process", published 1988-02-09, assigned to B. Hagemann GmBH & Co.
Books
edit- Yam, K. L., "Encyclopedia of Packaging Technology", John Wiley & Sons, 2009, ISBN 978-0-470-08704-6