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A Bead roller is a machine tool that makes rigid lines in sheet metal to make surfaces more rugged and durable. The lines bead rollers add to sheet metal prevent warping and disfigurement by adding structural integrity to the metal.
The rollers were typically made of wood, or sometimes rubber. The Steel Roll Mangle Co. of 108 Franklin Street, Chicago, Illinois, offered a gas-heated home mangle for pressing linens in 1902. In the 1930s electric mangles were developed and are still a feature of many laundry rooms.
There are different kinds of technology to roll the metal plate: Four-roller machines have a top roll, the pinching roll, and two side rolls. The flat metal plate is placed in the machine on either side and "pre-bent" on the same side. The side rolls do the work of bending. The pinching roll holds the plate.
Böttcher is the OEM roller supplier to the major sheet-fed press manufacturers including Heidelberg, MAN Roland, KBA, Komori and Mitsubishi. Böttcher America has won two awards for its products. In 1993, the company won a GATF award in recognition of the glaze free rollers technology (79 Series Rubber Compounds). [ 5 ]
For thin sheet metal with a thickness less than 200 μm (0.0079 in), [citation needed] the rolling is done in a cluster mill because the small thickness requires a small diameter rolls. [10] To reduce the need for small rolls pack rolling is used, which rolls multiple sheets together to increase the effective starting thickness.
A roll bender is a mechanical jig having three rollers used to bend a metal bar into a circular arc. The rollers freely rotate about three parallel axes, which are arranged with uniform horizontal spacing. Two outer rollers, usually immobile, cradle the bottom of the material while the inner roller, whose position is adjustable, presses on the ...
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