What are vertical lift modules (VLMs) used for?

Vertical lift modules (VLMs) are specifically designed for the vertical storage of items within a compact space. They consist of a series of trays that are stacked vertically and can move up and down to access stored items. This efficient use of vertical space allows organizations to maximize storage capacity while minimizing the footprint of the storage system.

In a VLM, items are held in trays, and the modules can automatically retrieve these trays and deliver them to an access point where operators can easily pick items. This design not only optimizes space but also improves inventory management and retrieval times.

The other options, while they may be functions or purposes of different types of automation and storage systems within warehouses or manufacturing, do not accurately describe the core purpose of a VLM. Picking and placing materials and sorting items are features associated with robotic systems or other material handling equipment, whereas automatically stacking items usually pertains to different stacking systems or conveyors designed for horizontal or mixed storage solutions.