Product category:
Cans, canning and tins materials, equipment and services
News Release from: Sencon (UK) | Subject: SC640 Lacquer Presence Detector
Edited by the Manufacturingtalk Editorial
Team on 17 November 2005
Detector Solves Can Makers' Uncoated
Sheet Problem
Sencon's new Lacquer Presence Detector, designated SC640, is a single head, non-contact M30 barrel sensor that is said to distinguish between coated and uncoated metal at line speed.
Sencon's new Lacquer Presence Detector, designated SC640, is a single head, non-contact M30 barrel sensor that is said to distinguish between coated and uncoated metal at line speed Detecting uncoated sheets at line speed has been a long-standing difficulty for can makers, who complain that even an occasional uncoated sheet is potentially a serious problem
This article was originally published on Manufacturingtalk on 10 Jun 2002 at 8.00am (UK)
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There are two distinct areas where uncoated material detection is critical, according to Sencon.
Firstly, at the coater where double or overlapping sheets, tripping of the coater rollers or simple coating starvation causes sheets to pass through either partially or wholly uncoated.
Either occurrence could result in serious can corrosion that may only be discovered after filling.
Detection of the problem at its source prevents unnecessary scrap generation, product isolation and time consuming re-sorting, or the even more costly occurrence of product recalls, said Sencon.
Secondly, DRD presses rely on the coating to act as a tooling lubricant during the drawing process.
Lack of coating can cause the tooling to blunt in a matter of just one or two strokes, so rapid detection is essential to prevent unnecessary downtime for replacing damaged press tooling.
The SC640 works with virtually all coatings including white, gold and most clear coatings, said Sencon and it does not matter if they are tested in their wet or dry states.
The sensor is totally self-contained in an M30 barrel casing and its simple wiring requirements make it easy to install, added the company.
Using Sencon's automatic learn function means that operators never have to adjust the sensor, even to accommodate variations in the coating or substrate, as the sensor itself maintains the ideal setting.
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