Vertical Storage Systems can be found in a number of variations, however, the most common solutions are called Vertical Storage Lifts (sometimes VLMs, Vertical Lift Modules) or Vertical Carousels. When it comes to storage on a limited space, both solutions mentioned above are full worthy alternatives – nevertheless, there are some notable differences. In the text below we will provide our best tips on when a vertical storage lift respectively vertical carousel will suit your situation best.
What’s the difference?
The biggest difference between a vertical storage lift and a vertical carousel lies in the construction of their respective drive lines. A vertical storage lift has two sections with multiple trays, where a crane in the middle of the storage lift collects trays to the lifts one or multiple picking openings. On the other hand, a vertical carousel is constructed of a band of carriers where all carriers are linked together and move in the same direction as the band moves to present a carrier in the picking opening.
Benefits with vertical storage lifts
• A vertical storage lift can under some circumstances store heavier products, and products that vary more in height and width. Provided that the crane in the middle of the storage lift only lifts one tray at a time (and doesn’t turn a band carrying the weight of all the goods in the unit) a vertical storage lift can handle heavier loads.
• A vertical storage lift can generally be built with larger dimensions – higher, wider, and deeper. In other words, it enables you to transform limited floor space to very capable storage space.
• The software connected to a vertical storage lift generally offers more possibilities when it comes to compression of trays and frequency handling of the respective trays. Some manufacturers of vertical storage lifts have automatic goods height readers in the picking openings – meaning that the lift automatically compresses the trays so they utilize the least amount of space.
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