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Roller conveyors are an essential for nearly any materials handling business, plant, or warehouse

July 12, 2011  |  Comments

Roller conveyors are an essential for nearly any materials handling business, plant, or warehouse. But although many people need and use them, not many people know how to order them, says A Plus Warehouse, a leading business-to-business distributor of locker equipment and quality materials handling equipment. Always dedicated to providing optimal customer service, A Plus Warehouse has put together a special blog post explaining all the terms necessary for ordering roller conveyors.

"There is a terminology that we use on a daily basis that makes perfect sense to our sales people, but can seem like a foreign language to our customers at times. Our salespeople will always explain ordering terms while processing your order but we like to make the information available in advance as well," said Ed Stairman, president of A Plus Warehouse. "The two most important things you need to know when ordering conveyors are whether you want the rollers set high or low, and the size of the roller center."

A roller conveyor is constructed of a few parts: the channel (frame), support spreaders, and rollers. The rollers are mounted into the frames with a spring loaded hex shaft either above or below the frame. About 90 percent of the conveyors ordered from A Plus Warehouse are set high, because if a load overhangs the rollers its path will be blocked by the frame on a low-set conveyor. A roller conveyor with rollers set high will allow users to move items slightly wider than the nominal roller length.

"Customers order roller conveyors set low when they want to use the frame as a guard rail. If you have a load of a determined width less than the nominal roller length and you want to make sure the load remains on the conveyor, you want to order your roller conveyor set low," said Stairman.

The roller center of a conveyor is defined as the distance between rollers (center to center) on the conveyor. The diameter of a roller can be as little as .75 inches all the way up to 3.5 inches. The minimum number of rollers required for a rigid package is three, and flexible packages require four rollers. To measure how large of a roller center is required, packages that will be on the conveyor should be measured and then divided by three for rigid packages and divided by four for flexible packages. The resulting measurement is the length of roller center you will need.

For more information on roller conveyors from A Plus Warehouse, call 800-209-8798 or visit

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