Plastics News correspondents Roger Renstrom and Michael Lauzon gathered these news briefs from NPE 2003, held June 23-27 in Chicago.
Parkinson touting turret winder's safety
Parkinson Technologies Inc. has developed an automatic cross-cut turret winder for thick sheet that it said improves operator safety and productivity and sheet roll quality.
The system runs at line speeds up to 300 feet a minute, said plastics sales manager Kathleen McCarthy. It removes the operator from the difficult and hazardous task of manually cutting sheet and attaching it to a new core.
Features include full-speed cut-over, servo-driven razor cross-cut, in-line slitting and the ability to handle multiple core sizes, McCarthy said. The Woonsocket, R.I., firm shipped its first two orders for the winder just prior to NPE.
Another safety-driven product is a gear reduction screen changer introduced by sister company Key Filters Inc. The manual screen changer requires a tenth or less of the force and less time to change a screen compared with lever-operated, manual changers.
Another sister company, Marshall and Williams Plastics, features compression mold drawing technology to achieve biaxial orientation of cast plastic sheet. Sales manager Andrew Miller said the firm initially is focusing on polypropylene sheet. Most orientation occurs in the machine direction, improving strength and clarity, but enough strength is added in the cross direction to give the sheet more stiffness in thermoforming, he said.
Miller said his firm has exclusive licensing with ITW Inc.'s Signode division to use the technology in plastics other than PET industrial strapping, for which Signode employs the technique.
Mokon shows line
of expanded products
Mokon of Buffalo, N.Y., broadened its product offerings with an expanded line of mold temperature controllers and additional central chillers and pump tanks.
Several of the new products have larger capacities, said Thomas Valentine, vice president of sales and marketing.
The air- or water-cooled Iceman central chillers have single- and multiple-circuit designs and capacities of 30-80 tons. Prices start at around $20,000. Scroll or semihermetic discus compressors are used.
A microprocessor or an Allen-Bradley programmable logic controller is a standard feature. Mokon sizes and customizes its new line of pump tank configurations.
Mokon's expanded line of Duratherm circulating water temperature control systems include models of 5, 7.5 and 10 horsepower and heating capacity up to 96 kilowatts instead of the previous capacity of 48 kw. Units start at $2,100.
A new ClearFlo system starting at $1,800 and combination ClearFlo Plus system at $4,000 reduce contamination in heat-transfer fluid systems and minimize downtime and maintenance costs. ClearFlo removes particles as small as 10 microns, and ClearFlo Plus captures particles as small as 0.1 micron to remove fluid contamination and water buildup.
The new Duratherm negative pressure temperature control system temporarily can fix cooling circuit leaks, permitting production to continue through the end of a run.
The Duratherm NPS can provide positive pressure when no leaks are present or negative pressure to stop a leak.
Mokon systems meet electrical safety Standard 79 of the National Fire Protection Association.
Mokon employs 50 and is a unit of Protective Industries LLC.