Warehouse Management Handbook by Tompkins Jim

Author:Tompkins, Jim [Tompkins, Jim]
Format: epub
Publisher: Tompkins Press
Published: 1998-09-30T16:00:00+00:00

The high-rise configuration provides efficient vertical space utilization and increases labor productivity by increasing the speed with which warehouse personnel move within the system. Walking is replaced by riding. Additionally, the order picking lift trucks and S/R machines can be equipped with computer terminals to automatically transmit instructions to the operator.

Standard Sizes. Shelving exists in a wide range of standard sizes. Standard shelf widths are generally 36, 42, and 48 inches. Wide-span shelving may extend to twice that. Shelf depths vary from 9 to 36 inches with three-inch increments. Post heights generally are up to 84 inches, with greater heights available for high-rise shelving. Individual shelf heights are typically adjustable on 1.5-inch centers.

Special Purpose Cabinets

Small parts, particularly small loose or packaged items that require hand picking can be can be stored and picked more easily when special options are used; cabinet doors, drawers, shelf boxes, hanging bins, containers, dividers, and similar shelf additions. These can be selected based on the products to be stored and increase storage efficiency, security, and picking productivity.

High Density Static Small Parts Storage

The inherent disadvantage of shelving storage for small parts is the inefficient use of space within a given shelf opening. To improve this space utilization, shelving accessories are added to the basic shelving configuration to compartmentalize the shelf opening. A consequence of this compartmentalization process is a significant increase in the investment, which can double or quadruple the cost of the shelving.

The objective of the compartmentalization is to fit the size of the space to the size of the item being stored. The smaller the items, the more difficult and expensive this becomes to accomplish with shelving. Shelving is relatively space efficient and inexpensive for relatively “large” small parts. Conversely, shelving is relatively space inefficient and expensive for “small” small parts. Consequently, where the volume of “small” small parts is high, other storage alternatives may prove more efficient and economical than shelving. It is this scenario in which modular drawer storage is best applied.

Modular Drawer Storage

Modular drawer storage consists of metal cabinets into which metal drawers are placed. Modular drawer cabinets (Figure 20.4) typically stand 42 or 60 inches high and contain drawers, the width and depth of which range from 24 to 36 inches. Drawer heights range from 2 to 12 inches. Weight capacity per drawer is approximately 450 pounds. Cabinets can be stacked one on top of another for good vertical space utilization. Ladders, order picking lift trucks, or S/R machines are utilized to access the upper drawer cabinets.

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