- Data Transmission
Data Transmission - The use of sensors to transmit data via pulse-modulated light beam systems typically from host stations to mobile carriers such as AGV\'s or stacker cranes. ...click for the full definition
DC - In electrical terms, direct current (as opposed to AC which is alternating current).
Deadband - An unusable area extending from the face of an ultrasonic proximity sensor to the minimum sensing distance allowing for target detection where pulses are received too quickly to...click for the full definition
Decking - The material, generally made from welded wire, that is placed on shelves, rack load beams or walks to support loads of variable sizes. The decks or flooring of a mezzanine ...click for the full definition
- Decking Section
Decking Section - A completely fabricated decking assembly with reinforcing members ready for installation upon supporting storage rack framing. One or more decking sections are used...click for the full definition
Deflection - The amount of deformation or bending in a pallet or pallet component under load.
Deflector - A stationary or moveable angled arm which deflects product flow access across a belt or roller conveyor to the desired location.
Demurrage - A term associated with the charge (monetary) that can be levied against a shipper or consignee who detains a container, truck, ship or railroad car beyond the allotted time for...click for the full definition
- Detachable Frame Pallet
Detachable Frame Pallet - A pallet that features a frame or superstructure that is removable.
- Direct Thermal Label
Direct Thermal Label - A label that is printed using a direct thermal printer. An advantage to thermal labeling is that it does not use ribbons.
- Dispersion Angle
Dispersion Angle - The degree of the angle of light.
Diverter - A device on a conveyor sortation system used to move a case/carton/piece off the main line.
Dock - The sorting or staging platform where shipments are loaded or unloaded.
- Dock Board
Dock Board - A device for bridging the gap between the warehouse and/or loading dock platform and a vehicle\'s load bed.
- Dock Bumper
Dock Bumper - Pieces of rubber located at the floor level of a dock opening to cushion the building from truck trailer impact.
- Dock Face
Dock Face - The outside wall of the dock door area.
- Dock Leveler
Dock Leveler - A manually, hydraulically, or electrically operated plate, located at the dock entrance, that can be raised and lowered to accommodate varying trailer floor heights. ...click for the full definition
- Dock Lift
Dock Lift - A lift whose travel is generally 5 feet (1524 mm) or less and which is primarily used to load/unload material from trucks and transfer it to dock or ground elevation. ...click for the full definition
- Dock Plate
Dock Plate - A moveable metal ramp that allows access to a rail car or trailer.
- Dock Seal
Dock Seal - A rubber or canvas covering that extends out from a dock face to seal the gap between the dock and the trailer\'s entrance.
- Dock Shelter
Dock Shelter - A cover that protects the space between the door of a rail car or truck and a warehouse from inclement weather.
- Double Deck Pallet
Double Deck Pallet - A pallet constructed of both a top and bottom deck or deckboards.
- Double Deep Rack
Double Deep Rack - A racking system that is used where a greater storage density is required. It accommodates two pallet loads stacked back-to-back and requires special fork trucks c...click for the full definition
- Double Girder Crane
Double Girder Crane - An overhead traveling bridge crane that utilizes two bridge beams set atop the runway (end) trucks. Generally this type of crane utilizes a top running trolley ...click for the full definition
- Double Leg Gantry
Double Leg Gantry - An overhead traveling crane designed so that the bridge carrying the trolley or trolleys is rigidly supported on two or more legs moving on fixed rails embedded i...click for the full definition
- Double Row, Double Face Shelving
Double Row, Double Face Shelving - One generally continuous row of units joined together, back to back and side to side to be serviced from two service aisles
- Double Wing Pallet
Double Wing Pallet - A pallet constructed in such a way as to have the top deck extending out from opposite sides
- Drawer Storage
Drawer Storage - Storage utilizing drawers in cabinets or within shelving systems and are suitable for applications where volume of inventory turnover is low and where smaller items ...click for the full definition
Drayage - Transportation of materials and freight on a local basis, but intermodal freight carriage may also be referred to as drayage.
- Drive In Rack
Drive In Rack - This type of rack utilizes upright frames, rails, and ties to allow a vehicle to enter a storage rack structure from one side only and pick up or deliver pallets on continuous rail...click for the full definition
- Drive Through Rack
Drive Through Rack - This rack is similar to drive-in rack except that the fork truck is capable of driving straight through the structure at any storage location along the aisle. Click on the ...click for the full definition
- Drop Cantilevered Jib Crane
Drop Cantilevered Jib Crane - Similar to a full cantilevered jib crane with the exception of a column or beam connection that allows the load beam or boom to be mounted at any point on the column ...click for the full definition
- Drum Turner
Drum Turner - An attachment to a fork truck, lift table or below-the-hook on a hoist that enables that piece of equipment to turn over drums for filling and emptying.
Dunnage - Materials or devices used in the securing and/or bracing of products during shipments.
- Dynamic Storage System
Dynamic Storage System - A storage system that provides varying means of either mechanically moving storage locations or loads within the systems so as to increase storage density and/or to increase...click for the full definition