Ceramic ball bearings are fully resistant to corrosion as both the external and internal races are made of stainless steel, while the inner cage is made of plastic material, which is resistant against high temperatures. Thanks to the low friction of the ceramic balls, the seaming rolls require a reduced lubrication – up to five times less than standards. This saves time for the operators and the machine downtime, allowing increased production.
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Seaming chucks and rolls made from tool steel are generally considered the industry standard for can factories, while canneries generally use stainless steel. Other types of steel are commonly used in the production of seaming chucks for Easy open covers, especially for those chucks that suffer from a weak chuck lip.
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UCAR plating is applied on the lips of the seaming chucks in order to offer high wear resistance features, besides friction with the parts it is in contact with.
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This chromium plating is used for some applications, such as seaming rolls for filters and deepdrawn aluminum cans. It guarantees a very good wear resistance and a low friction coefficient.
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This coating is typically applied on seaming chucks and rolls and it extends their life up to three times. Surfaces coated with DIAMOND 98HRC have a very low friction coefficient, and as a consequence they have very high anti pickup features. Therefore, rubbing is reduced, and seams can avoid peeling.
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