Glossary


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31) Horizontal Carousels

As a storage device, a horizontal carousel consists of a fixed number of adjacent storage columns or bays that are mechanically linked to either an overhead or floor mounted drive mechanism to form a complete loop. Each column is divided into a fixed number of storage location or bins which in most applications are constructed of a welded wire frame. Loads consisting of containers or totes may be inserted and retrieved either manually or by an automatic inserter/extractor mechanism. However, rotation of the carousel, whereby a specific storage location is brought to the picking location, is almost always controlled automatically. See also Vertical Carousel , Vertical Lift Module , Rotary Rack , and/or AS/RS .

32) Rotary rack

A rotary rack is a special variation of a horizontal carousel. In this case each vertical level or storage location is mechanically independent of the location above or beneath it. Each level in turn is driven by a separate and independent drive. Therefore, simultaneous, independent rotation of each level is possible (in any direction). Although replenishment and picking can be accomplished manually, most rotary racks incorporate automatic load inserters and extractors. See also Horizontal Carousels and/or AS/RS .

33) Fixed Aisle Storage & Retrieval

Fixed Aisle (F/A) Storage & Retrieval Systems consist of one or more long, narrow aisles framed on both sides by a steel (and sometime extruded aluminum) storage rack structure into and from which loads are automatically stored and retrieved under computer control. The storage/retrieval function in each aisle can be performed a variety of ways.  However, the most  common was is by a machine that consists of a floor running, traveling structural frame or vertical mast that guides and supports a hoisting carriage on which loads are carried. One or more shuttles or insertion/extraction devices on the hosted carriage manipulates loads into and out of adjacent or opposing storage rack positions. All three machine motions; horizontal (down aisle), vertical and shuttle action are independently and automatically controlled. See also Carousels , Unit Load AS/RS , Mini-Load AS/RS and/or Micro Load AS/RS .

34) Vertical Carousels

As a storage device, a vertical carousel provides for closed loop automatically controlled rotation of the basic storage unit, which in this case may be a shelf that can be subdivided into multiple bin locations. However, a shelf or a given vertical position need not be divided in order to handle large items such as a bolt of fabric or a roll of carpet. Because storage is vertical, such systems are popular when conserving floor space. Although automatic insertion and extraction of individual items or loads is possible, it is not as common as it is with horizontal carousel applications. See also Horizontal Carousels and/or AS/RS .

35) Vertical lift module

A Vertical Lift Module, or VLM is a storage system that consists of two parallel columns each of which is divided into fixed shelf locations that can hold a single storage module such as a tray or tote. The shelving locations are single deep. A tray or tote is inserted, extracted and transported between storage levels and picking locations via an elevator-like device with an automatic shuttle that travels up and down within the space between the storage columns. See also Carousels and/or AS/RS .

36) Label placard

The label placard acts as a label holding device that allows the user to label and relabel containers, racks and pallets.

37) Stack only container

A container that possesses self-supporting and straight walls.  This feature means that the container walls are straight and can support the total weight of several stacked containers.  Stackability reduces the required floor or rack storage space for empty containers.

38) Label holder

The label holder acts as a label holding device that allows the user to label and relabel containers, racks and pallets.

39) Ledge type shelving

A shelving unit designed to accommodate two different depths of shelves. Larger shelves are placed at the bottom and the unit is stepped back with smaller shelves on top.  This step back forms a ledge across the face of the shelf. The shelving may be either open or closed type.  In some instances, a ledge unit can be added to a regular shelving unit.

40) Shelf opening

The basic shelving compartment formed between two shelves within a unit of shelving.

41) Shelving post system

The vertical upright member that supports the horizontal shelf.  Posts are manufactured in a variety of configurations.

42) Shelf reinforcement

A variety of flat bars, angles, channels or other formed sections which are placed within or under the shelf to reinforce the shelf and prevent damage due to shock loading.

43) Shelf divider

A formed steel partition placed within the shelf opening to subdivide it into smaller compartments.  Some types of dividers include: full height, angle, tapered, sliding, floating.

44) Rack standards

Authoritative guides, or directives, used in the manufacture, sales and use of storage rack systems and components.

45) Slave pallet

A pallet used in an automated rack system.