New Roller C-Head Sensor Virtually Eliminates Sensor Related Marred Blown Film Surfaces

For Blown Film producers, Plast-Control is introducing a patented Roller C-Head capacitive sensor for measuring film gauge profile. The Roller C-Head eliminates sensor generated scratching and marking of film surfaces, commonly associated with contact sensors.

The new (2001) Plast-Control technology features a wheel type capacitive sensor that lightly contacts the film bubble surface and rotates at a speed matching that of the film. Capacitive gauging systems require contact with the media being measured, stationary capacitive measuring heads even when equipped with special low friction coating scratch or mark the film as it passes over the head. The new Roller C-Head once in contact with the film rotates at a speed equal to that of the film and hence virtually eliminates scratches.

capacitive wheelAccording to Mark Anderson, Plast-Control Sales Manager, the new system solves a common problem faced by blown film producers. Traditional sensors contact the film with a stationary surface. The friction generated by this contact often marks the film, especially softer or ‘stickier’ films.  The Roller C-Head provides an effective solution to this problem, while allowing the processor to remain Non-Nuclear with their gauging solution."

The Plast-Control Rotating C-Head is available with new Plast-Control production management systems and can be retrofitted to existing lines. The Roller C-Head has been proven effective in critical applications to speeds of 500 ft./min. and gauges up to 6 mil.

PLAST-CONTROL manufactures extrusion process control and management technology in Remscheid, Germany.  Systems and components are engineered to enhance the economics of production or blown film, sheet, pipe and tubing.  PLAST-CONTROL installations have provided over 50% improvements in total gauge to blown film processes and significantly improving product yield or feet of sellable products per pound of material. In many cases they have increased output as well.   All PLAST-CONTROL systems and components can be retrofitted to optimize the economic performance of most extrusion systems and may be ordered as integral components of new extrusion lines.  PLAST-CONTROL technology is unique, patented and available only from PLAST-CONTROL. More than 14,000 PLAST-CONTROL systems are successfully in operation throughout the world.