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Introduction Top Lidder series
There can be various reasons for placing a separate lid or top tray onto a package of trays with eggs. These lids are placed manually or using a so-called top lidder. These top lidders were introduced to the market some time ago.
Moba offers a special Top Lidder series with the following functions:
TL10: For placing top trays on top of trays stacked for palletising purposes or on top of a single tray for shrink-wrapping trays, including a top tray.
TL20: For placing lids on special consumer packs (so-called ‘tray packs’) with a separate lid.
TL30: For placing top trays on top of trays stacked in a case.
The TL10 explained
The TL10 serves two purposes:
- In combination with tray palletising
The TL10 is typically positioned between a tray stacker and a tray palletiser, like the MR40. Every stack of six trays passing the TL10 will trigger a top tray to be placed on top of this stack. The purpose is to protect the eggs, as the palletiser places a layer pad (cardboard or wooden plate) between each layer of trays. If that would be placed on top of the eggs, they will be damaged. The top tray will protect the eggs in the upper tray of each stack. This mostly applies to paper trays, since plastic tray systems all have layer pads that protect the eggs without the need of a top tray. The benefit of the system? Without the TL10, manual actions are needed before stacks of trays can be palletised. It therefore enables automatic palletising of pulp or plastic trays without specialised layer pads. The capacity of the TL10 is approximately 27 top trays per minute. When stacks of 180 eggs are processed, this exceeds the capacity of a tray palletiser by far.
- In combination with shrink wrapping
In many cases, a tray filled with eggs is sold as a ‘consumer pack’. Often a top tray is added and the combination of eggs, sandwiched between two trays, is sent through a shrink-wrapping machine. For this purpose, the TL10 is typically positioned in the Contiflow system just before the shrink wrapper. It can also be placed on the Take-away Conveyor behind the grader, from where the trays are taken away manually. The capacity of the TL10 is 27 top trays per minute. If trays with 30 eggs are processed, the capacity is 48,600 eggs per hour. The benefits are obvious: automating product flows to shrink wrappers at capacities close to 50,000 eggs per hour is impossible for human operators.
More information on the TL20 and TL30 will follow. Keep an eye on our website for these updates.