Davis-Standard: Introduction of “PAC 60” Surface Winder for Large Rolls

A new surface winder from Davis-Standard, the PAC 60, enables film converters to wind 60-inch (1,500mm) diameter rolls on 6-inch (150mm) cores at speeds up to 600 feet per minute (180 meters per minute). This winder is ideal for large roll mill operations where film is either converted into a lamination or made into bags or sacks off-line. Davis-Standard recently supplied nine of these winders to a major can liner manufacturer.
The PAC 60 is unique in that it features lay-on pressure control to prevent blocking at the core, a problem which is typical on most large-roll surface winders where the lay-on force is not controlled. This is made possible via a hydraulic control circuit and roll mounted force transducers utilizing an actual pressure feedback circuit to consistently maintain lay-on pressure. Other advantages include a shaft accelerator to bring the new core to the higher line speeds and transfer via an auto-cut traversing knife to a new core. The shaft is positively clamped with a pneumatic latch during the transfer cycle for positive roll starts and dependable transfers.
The AC drives and controls for the PAC 60 are mounted on the winder frame for a single power drop. This winder is also pre-wired and fully tested, and is available in 40, 50, 60 and 70-inch width (1,000 to 1,800mm) models.
For more information, contact Rick Keller at [email protected]

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