Tray or Box Heat Shrink Machine is very similar to other fully automatic shrink wrap machines but there will be additional tray or sheet insertion then to wrapping the products which are planning to shrink-wrap will travel in a single line 90 degree to pneumatic pusher and the required matrix will be formed on sheet or tray which is pre placed with pneumatic pick and place the  which pushes the products onto sealing units (web sealer).

A pneumatic pusher of Tray or Box Heat Shrink Machine collates the boxes / containers into the pre-selected pack formation, once the required gets formed the product holder holds the matrix and the sensor will give the signal to seal bar to cut and seal the paper.

Once the welding bar ascends, the pusher advances to transfer the new collation into the welding position, at the same time displacing the previously wrapped collation onto continuously moving wire mesh shrink tunnel conveyor.

The wrapped collation soon enters the shrink tunnel chamber where re-circulated hot air causes the wrap to shrink and tightly conform to the contours of the contents.

Once the pack is out of the hot chamber , forced air cooling is used to tighten sleeve wrap to achieve a strong, secure pack ready for stacking on pallet or a placing on a shipping carton.

The Compact series of overwrapping machines – designed for fully automatic packaging. The product flow is inline, also the wrapping cycle is sensor-controlled to facilitate manual or automatic loading. Items are wrapped in centre-folded film that is sealed on the three remaining edges.Feeding systems ensure superior performances; production speeds of more than 100 packs/minute are achievable – depending on machine configuration and product.

The heated, constant-temperature sealing system can seal all industry standard films, from Polyethylene to Polyolefin to PVC. The BVM side knife produces neat, high-integrity seals, especially when Polyolefin film is used. Product changeovers do not require the turning of hand wheels or adjustments of product guides, therefore changeover times are short and operational reliability is increased.

The beauty of this shrink wrap machine is that , there will be  carton sheet magazine and it also contains the tray forming arrangements  like with guides and plats.
 
If you want to know more details of Tray or Box Heat Shrink Machine, feel free to ask YUPACK workers.