A brief carousel application guide
Also, see "Questions to ask when you consider a carousel system" From our Warehousing Insights Blog
Vertical Carousels for high density storage and tall ceiling areas
Vertical carousels are basically a series of highly-configurable "shelves" that rotate around a track. They deliver exactly the right picking position to an operator. Since they save about 75% of floor space, vertical systems are ideal for high density storage applications and facilities with high ceilings. They fill the air with productive storage space. Vertical systems can be standalone or integrated into a series of workstations or zones fed by conveyors or other delivery or takeaway systems. They are an ideal combination with light directed picking.
Vertical lift modules: similar to verticals, but with important differences
VLM's are similar to vertical carousels, but differ in two significant ways. First, they are modular. You can stack "modules" so that height can be added to the system in predefined ways. More importantly, they do not rotate the entire inventory each time the system is engaged, as vertical systems do. VLM systems move only the required storage position to the pick station.
Horizontal Carousels for high speed order picking
These carousels are frequently used in picking applications in conjunction with pick to light systems. They are frequently utilized in pods (two or more carousels). Pods are often used in an integration with software and picking systems, as well as takeaway conveyors or pick cart access. When operators pick from a software driven carousel in a pod setup, another carousel rotates the next pick bin into the picker's range. Horizontal carousels can also be stacked, with one carousel on the floor and a second accessible from a mezzanine level. Horizontal systems save space compared to traditional storage (racks, shelving), but do not utilize the vertical cube as well as vertical carousels or VLM's. They may command 50% more floor than a vertical solution.
Manually controlled vertical systems
These systems operate like a vertical carousel, but do not require control systems or other automation. Operators press buttons and rotate the required load to them in a goods-to-picker method. This makes these systems less expensive, and by nature slower than automated, software-driven carousels. They also offer a variety of load profiles, from rolls to coils to cylinders to trays