ANSI CEMA 102 Revision Page 1

In 2011 CEMA will be revising ANSI CEMA Standard 102-2006
"Conveyor Terms and Definitions".
The Current Edition contains 1,666 entries.

In the late 1930s CEMA pioneered in developing standard definitions of conveyor terms for the industry.
CEMA seeks to keep this document current as new Conveyors and Conveyor Accessories are deployed in the industry.

If you are aware of any new Conveyor Terms that are not included in this list, please bring them to our attention via
e-mail to Phil Hannigan at CEMA Headquarters phil@cemanet.org.

CURRENT TERMS

PROPOSED NEW OR REVISED TERMS AND DEFINITIONS

TERMS AND DEFINITIONS FROM NON-NORMATIVE
PALLETIZER APPENDIX IN ANSI/CEMA 102-2006
First Definition from ANSI Standard 102-2006
Second Definition from Palletizer Appendix

Apron - a series of pans or plates attached to chain or pivotally attached to one another to form the conveying medium of a conveyor.

Apron - A horizontal member on which a layer of product is assembled for depositing on a pallet or on a previously deposited layer. An apron may be a roller bed or flexible assembly capable of being moved beneath its layer so as to deposit the layer on the surface beneath it. See Stripper Plate.

Case stop - see Product Stop.

Product stop - A mechanical barrier to interrupt the flow of product on an active conveyor without shutting down the conveyor. Typically, a product stop is pneumatically actuated. Also known as a Case stop.

Case stop - Barriers which are introduced between cases, cartons, or packages in a row-forming conveyor to create spaces or gaps in the row and subsequently in the pattern. Case stops may be used to prevent cases from turning around each other when rows are advanced by flight bars or pusher bars. Also called package stops.

Definitions previously approved by CEMA Palletizer Section when the developed CEMA Pamphlet "Palletizer Terms and Definitions"

Case Turner - A mechanism for changing the orientation of a carton, case or package as needed to form the pattern. Also called a turning device.

Depalletizer, Case - a mechanism which disassembles pallet loads of cases, cartons or packages by removing layers sequentially and rearranging the cases, cartons, or packages for conveyance away from the Depalletizer

Discharge Conveyor - A conveyor capable of receiving and transporting a pallet load or a unitized load from a palletizer or unitizer.
Flight bar - A device used to move a layer or row of product to the next section of a palletizer. It may be called a sweep, pusher bar, transfer bar, or rake.

Full load conveyor - A conveyor located in the load hoist area for transporting the palletized or unitized load from the palletizer or unitizer. The full load conveyor may or may not be on the load hoist. Also called a hoist conveyor.

Infeed - A conveyor or device located between the transportation conveyor and the palletizer or unitizer which creates spaces or gaps between product and controls or meters the input product.

Layer - A single level horizontal arrangement of product formed in a predetermined pattern. It may also be called a tier.

Layer guides - Vertical surfaces located above the apron or stripper plate, which may be fixed or movable to locate the layer of product for depositing. Also known as Back Dams, Closing-in Guards, Compactors, Compression Units, Layer Retaining Guards, Rake Backups, Retainers, Side Dams, and Stripper Beams.

Layer table - A section of conveyor used to accumulate and hold a layer of product while other sections of the palletizer or unitizer are continuing operations.

Load hoist - The mechanism by which a pallet or other loading surface may be raised to its loading position and which may be incrementally lowered to permit depositing of additional layers of product.

Load hoist, auxiliary - A load hoist used to support a pallet for loading layers while the load hoist is being unloaded and raised to a position where it can accept the loads from the auxiliary load hoist and continue normal operations.

Pallet magazine - Another term for pallet dispenser.

Pallet retainers - A cam, dog, or other element capable of holding a stack of pallets. Usually found in a pallet dispenser operating in conjunction with an elevating mechanism to release one pallet at a time. Also called pallet support or pallet fingers.

Pallet stacker - a conveying mechanism which can sequentially accept pallets, assemble, and retain them in a vertical stack for discharge on demand or when the stack is completed to a pre-determined height. Also called Empty pallet collector, or Pallet collector.

Pallet stop - A device used to position a pallet so that it will be ready for its next operation. Pallet stops are frequently used to position empty pallets on the load hoist.

Palletizer, bag - A palletizer designed and built to handle bags or bales of product.
Recommend change title to Bag palletizer for 2011 Edition - PGH

Palletizer, bulk - A palletizer designed and built to assemble products such as bottles and cans, which are not contained in a carton or bound together by another medium.
Recommend change title to Bulk palletizer for 2011 Edition - PGH

Palletizer, base - A palletizer designed and built to handle cartons, cases, or packages of product.
Recommend change title to Case palletizer for 2011 Edition - PGH

Pattern - The geometric arrangement of products to from a layer.

Pusher bar - Another term for Flight bar.

Rake - Another term for Flight bar.

Row former - A conveyor used for accumulating product in a row as part of the process of forming a layer.

Slide plate - Another term for Stripper plate.

Sheet dispenser - The mechanism that contains a stack of sheets and which separates and removes a sheet from the stack for placement under the load, between layers, or on top of the load. It may also be known as a cap sheet, pull sheet, tie sheet, or tier sheet dispenser.

Stripper plate - A metal plate capable of supporting a layer of product, and capable of being moved horizontally to deposit the layer on the surface beneath the plate. Also called Slide plate.

PROPOSED NEW TERMS AND DEFINITIONS FROM UNIT BOOK PROJECT

Multi-strand chain conveyor - A series of parallel strands of roller chain to convey unit loads. The chains are pulled along rails that support the chain.

Motor driven live roller conveyor - A type of conveying equipment that utilizes motor driven rollers to power adjacent un-powered rollers to move product

Motor driven roller - A conveyor roller that has a small electric motor inside to rotate the roller

PROPOSED MODS TO THE UNIT BOOK DEFINITIONS FOR INCLUSION IN 2011 REV OF 102

Motor Driven Live Roller Conveyors

Live Roller Conveyors can be generally described as a series of product carrying rollers, supported in a frame and powered by remotely mounted electric, pneumatic, or hydraulic motors. The transmission of the motive force from the motor and/or the motor gearbox arrangement, to the product carrying rollers, is most commonly by belt, chain, or live line shaft through urethane o-rings. A current alternative drive method incorporates a motor and gear train housed within the carrying roller shell or within a drive pulley.

Motor Driven Rollers (MDR)

Rollers that incorporate a motor and gear train housed within the carrying roller shell while replacing some of the live roller carrying rollers in a conveyor. By using the motive force provided by integrating the motor within individual rollers, MDR rollers can power the entire conveyor. These self powered rollers are used individually, in multiples or linked by chain, cog belt or o-rings to power adjacent rollers and in many instances create zones of slave driven rollers. Sophisticated low voltage controls prepackaged from MDR manufacturers allow for on line logic (without PLC initiation) to start, stop, and reverse individual conveyor rollers or zones of rollers.