Definition: Conveyor belt
Type: Glossary & Dictionary
Category: Conveyor System
A belt conveyor consists of two or more pulleys, with a
continuous loop of material - the conveyor belt - that rotates about them. One
or both of the pulleys are powered, moving the belt and the material on the belt
forward. The powered pulley is called the drive pulley while the unpowered
pulley is called the idler. There are two main industrial classes of belt
conveyors; Those in general material handling such as those moving boxes along
inside a factory and bulk material handling such as those used to transport
industrial and agricultural materials, such as grain, coal, ores, etc. generally
in outdoor locations. Generally companies providing general material handling
type belt conveyors do not provide the conveyors for bulk material handling. In
addition there are a number of commercial applications of belt conveyors such as
those in grocery stores.
The belt consists of one or more layers of material they can be made out of
rubber. Many belts in general material handling have two layers. An under layer
of material to provide linear strength and shape called a carcass and an over
layer called the cover. The carcass is often a cotton or plastic web or mesh.
The cover is often various rubber or plastic compounds specified by use of the
belt. Covers can be made from more exotic materials for unusual applications
such as silicone for heat or gum rubber when traction is essential.
Material flowing over the belt may be weighed in transit using a beltweigher.
Belts with regularly spaced partitions, known as elevator belts, are used for
transporting loose materials up steep inclines. Belt Conveyors are used in
self-unloading bulk freighters and in live bottom trucks. Conveyor technology is
also used in conveyor transport such as moving sidewalks or escalators, as well
as on many manufacturing assembly lines. Stores often have conveyor belts at the
check-out counter to move shopping items. Ski areas also use conveyor belts to
transport skiers up the hill. A wide variety of related conveying machines are
available, different as regards principle of operation, means and direction of
conveyance, including screw conveyors, vibrating conveyors, pneumatic conveyors,
the moving floor system, which uses reciprocating slats to move cargo, and
roller conveyor system, which uses a series of powered rollers to convey boxes
The longest belt in the world is in Western Sahara. It is 100 km long, from the
phosphate mines of Bu Craa to the coast south of El-Aaiun. The longest single
belt conveyor runs from Meghalaya in India to Sylhet in Bangladesh. It is 17
miles long and conveys limestone and shale. The Conveyor belt was manufactured
in about 300 meter lengths and was joined together and installed on the conveyor
at site. The job was carried out by NILOS India Pvt. Ltd. in Chennai India.
Conveyors are used as components in automated distribution and warehousing. In
combination with computer controlled pallet handling equipment this allows for
more efficient retail, wholesale, and manufacturing distribution. It is
considered a labor saving system that allows large volumes to move rapidly
through a process, allowing companies to ship or receive higher volumes with
smaller storage space and with less labor expense.
Belt Conveyor Systems
Rubber Conveyor Belts are commonly used to convey items with irregular bottom
surfaces, small items that would fall in between rollers, or bags of product
that would sag between rollers. Belt conveyors are generally fairly similar in
construction consisting of a metal frame with rollers at either end of a flat
metal bed. The belt is looped around each of the rollers and when one of the
rollers is powered (by an electrical motor) the belting slides across the solid
metal frame bed, moving the product. In heavy use applications the beds which
the belting is pulled over are replaced with rollers. The rollers allow weight
to be conveyed as they reduce the amount of friction generated from the heavier
loading on the belting. Belt conveyors can now be manufactured with curved
sections which use tapered rollers and curved belting to convey products around
a corner. These conveyor systems and are commonly used in postal sorting offices
and airport baggage handling systems.
Snake Sandwich Belt Conveyor
A sandwich belt conveyor uses two conveyor belts, face-to-face, to gently but
firmly contain the product being carried, hence making steep incline and even
vertical-lift runs easily achievable. The Snake Sandwich Belt Conveyor was
created in 1979. The study was conceived by Joseph A. Dos Santos, P.E.,
President of Dos Santos International, with the help of a grant from the U.S.
Bureau of Mines. The study was to develop a means of moving and elevating large
quantities of bulk materials, including coarse products such as rocks,
aggregate, coal, etc. at the steepest possible inclines. The intent was to use
only existing and generally available hardware in order to achieve the most
economically feasible and easily maintained steep-angle conveyor design. Snake
Conveyors are available in widely ranging profiles of C and S Shape. In any
case, a long bottom belt approach is possible to the sandwich entrance, and
discharge may be on the high incline or may be after the extension of the
carrying belt beyond the mouth of the sandwich. Snake Sandwich conveyors offer
several advantages. First unlimited conveying capacity, a system suitable for
the most rugged mine applications and gentle on sensitive and friable materials,
high availability and low operating and maintenance costs, smooth surfaced belts
allowing continuous belt cleaning by scrapers and plows. This also facilitates
intermediate material discharge by belt plows, as appropriate, before and/or
beyond the sandwiched part of the Snake profile. All conventional conveyor
hardware insures economy and fast delivery of replacement parts.
Vibrating Conveyor Systems
A Vibrating Conveyor is a machine with a solid conveying surface which is turned
up on the side to form a trough. They are used extensively in food grade
applications where sanitation, washdown, and low maintenance are essential.
Vibrating conveyors are also suitable for harsh, very hot, dirty, or corrosive
environments. They can be used to convey newly cast metal parts which may reach
upwards of 1500°F. Due to the fixed nature of the conveying pans vibrating
conveyors can also perform tasks such as sorting, screening, classifying and
orienting parts. Vibrating conveyors have been built to convey material at
angles exceeding 45° from horizontal using special pan shapes. Flat pans will
convey most materials at a 5° Incline from horizontal line.
Flexible Conveyor Systems
The flexible conveyor is based on a conveyor beam in aluminium or stainless
steel, with low friction slide rails guiding a plastic multi-flexing chain.
Products to be conveyed travel directly on the conveyor, or on pallets/carriers.
Racks Used Pallet Rack Warehouse Equipment & Shelving Pallet Racks, Conveyor Technology, Inc, Kornylak Corporation, American Conveyor Group, TITAN INDUSTRIES, INC., Sierra Conveyor Company, Inc., Ashland Conveyor Products, A&E Conveyor Systems Company, Orthman Conveying Systems, Conveyor Dynamics, TRAMCO Conveyors, Mason Plastics Company, Conveyor Eng & Mfg Co. - Specializes in Stainless Steel Screw Conveyors and Fabrication, Hytrol Conveyor Company, Inc., Overland Conveyor Co., Inc., McNichols Conveyor Co., Hoffmeyer Company, Inc., Amek Limited, Bastian Material Handling (BMH), Conveyor Services Corporation, Conveyor Technologies Ltd., Jorgensen Conveyors, Inc., Goodman Conveyor Company, Conveyor Care Company., L.K. Goodwin Co., Inc.
Gear Boxes, Kornylak Pioneered Palletflo® Urethane Wheels For Pallet Flow Live Storage, Armorbelt® Steel Belt Conveyor For Manufacturing & Material Handling, Heavy Duty Macrobelt® Conveyors For Material Handling, Multi Directional Omniwheel Robot & Conveyor Wheels, Karry-All® Low-Lift & High-Lift Cargo Trucks, TA - Medium Duty Belt, TL - Heavy Duty Belt, Gapper - Power Belt Gapping, Gapper-L - Power Belt Gapping, TS-1500-100 - Transnorm Belt Curve, CRB - Troughed Roller Bed, 190-LR - Medium Duty (Flat Belt), Multi-flex Chain Conveyor, Cable Conveyor Systems, Elevators and Lowerators, Accumulation Conveyors, Pallet Conveyors, Container Cleaning, Specialty Conveyors, Screw conveyor, Belt conveyor, Bucket elevator, Discharge gate, Sorting conveyor
BEUMER Developed Innovative Conveyor Technology that Needs Only a Fraction of the Energy, Berkeley Scientists Moved Carbon Nanotubes into Conveyor Belts Capable of Ferrying Atom-Sized Particles to Microscopic Worksites, MIT Researchers Developed Micropumps Fluid Conveyor Belt May Enable Portable Biomedical Lab-on-a-Chip Devices, Routing Agents at the Nodes of an Automatic Baggage Conveyor System for Hub Airport, Robots with ‘3D Vision’ may Enable Automated High-Speed Pick and Place Robotics Solutions for Packaging Application, Transformed carbon nanotubes into conveyor belts, Micropumps create a “fluid conveyor belt”, Dorner Mfg. Corp.: New 5200 Series QWIK Conveyor Eliminates Belt Pinch Points for Greater Worker Safety, Conveyor in an installation for motor vehicle bodies electrocoating, Alignment conveyor, title of the conveyor conveyor, Belt conveyor support element and conveyor comprising same, SEALING PLATE CONVEYOR., PRODUCT CONVEYING DEVICE IN PARTICULAR FOR FRUITS OR VEGETABLES, ADAPTED TO AT LEAST WEIGHT-BASED PRODUCTS OF THE SORTING, CONVEYOR SYSTEM FOR LOADING AND UNLOADING TRUCKS, Compost windrow turner with oblic conveyor belt, Device for lifting a load resting on a conveyor, Drag conveyor and hopper assembly, A new invention for travelers, Unit for manufacturing and packaging roll-shaped items, Optimization of production : new ways of testing human-interface product, Illustrative Research On 'Belt Conveying Of Minerals' Highlights The Important Area..., FKI Logistex Launches Logistex MR200 Motorized Roller Conveyor, NEW LOW PRESSURE ACCUMULATION AND UNIVERSAL MICROROLLER CONTROL MODULES REDUCE ENERGY AND OTHER COSTS ON CONVEYOR SYSTEMS, MagStar introduces XLR multi-lane conveyor
Robson Dry Sand Handling System at WBB Minerals, Geo Robson Gained a £650,000 Contract to Supply Equipment to Recycle Kiln Dust in WAPCO Industries, Cardiff International Airport has Started Newly-Doubled Baggage Handling and Screening Equipment for Increasing Passenger Growth, Manta Offers High Resolution Scanning to Detect and Remove the Smallest Defects and Foreign Material, Modifications to the Existing Screen and Magnet in the Immensity Outloading Region for Personnel Access at British Sugar