Printer Friendly

Simple, economical, manual roll-gap adjustment for sheet.

Processing Technologies International (PTi), Aurora, Ill., has developed and patented a new way to manually adjust roll gap on cooling and polishing sheet roll stands. The device features an integral ratchet positioning arm. This gap adjustment mechanism is said to be simple, efficient, and less costly than competitive methods.

Conventional roll-gap adjustment systems include manual jack-screw arrangements or motorized servo-hydraulic mechanisms. PTi's integral ratchet, on the other hand, is operated with a wrench device that moves up or down a threaded shaft to set the chrome roll gap within [+ or -]0.0005 in. Analog gauges on each side of the roll provide a precise gap measurement for the operator.

The mechanical advantage of the ratchet wrench lever arm and the threaded shaft enable the unit to be operated at up to full line pressure of 600 to 800 PLI. In comparison, conventional systems require a reduction in roll pressure to permit changing the gap setting. Manual roll-gap adjustment is available as standard on PTi's G-Series roll stand.

(630) 585-5800 * ptiextruders.com
COPYRIGHT 2012 Gardner Publications, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2012 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Title Annotation:industry & technology news
Publication:Plastics Technology
Date:Aug 1, 2012
Words:171
Previous Article:Algae/PP hybrid can be thermoformed.
Next Article:Automotive molders add big multi-material presses.

Terms of use | Privacy policy | Copyright © 2019 Farlex, Inc. | Feedback | For webmasters