Case Studies

Double E is a solutions provider. The company engineers and applies its products with over 40 years of industry experience behind it, generating thousands of success stories. Please find a few examples of how Double E has helped customers below.

Producer of Roofing Material Improves Slitting Quality and Safety with Gold Holders

A producer of roofing material that uses an offline slitter for roofing paper was concerned with their old OEM knife holders which were producing an inconsistent cut quality due to the holders creating vibration at the cut point from instability. Control of the vertical overlap, cant angle, and side load was crude and led to inconsistent cut quality from roll to roll. This would cause rejected rolls, excessive downtime and unfortunately, lost profit. The original dovetail rail increased the setup time due to the difficulty in positioning the holders and added to the rejected rolls. Safety was also a major concern since the blades were always exposed. The risk of an injury always loomed over the plant manager.

Double E engineers recommended upgrading the holders and rails to the Mario Cotta "Gold" series. The gold holders dual shaft design provides stability at the cut point which improves overall cut quality. The precise and consistent control of the overlap, cant angle, and side load gives the operator confidence that the slit quality and accuracy of every roll is the same. The user friendly setup knobs reduce downtime and allow for increased throughput. Removable blade cartridge makes it safer to change blades and allows operators to reduce downtime by swapping in a new cartridge. The new rack and pinion rail provides a smooth, accurate positioning that adds to the improved finish roll quality and reduced downtime.

The new upgrade to the old slitter provided efficiency, cost savings, and increased product quality. The customer has since expressed how impressive the new slitter machine performs but what the customer was most impressed with is the level of safety that the new Gold holders provide. Since the blade cartridges could be removed before changing out the blade there was reduced concern for any operator accidents. The full protective guards added to the overall safety of the holders.

For more information, please contact Double E Company, the exclusive distributor of Mario Cotta slitting equipment in North America.