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11-30-2011

PTi: U.S. Patent for G-Series Linear Bearing Mounted Roll Stand

Processing Technologies International (PTi), Aurora, Ill., USA, a global manufacturer of high-performance sheet extrusion machinery, has been granted a U.S. patent for its linear bearing mounted roll stand which provides high precision and repeatability along with faster installation. The G-Series roll stand is a key feature on PTi’s Globaline series of sheet extrusion systems which focus on flexibility, allowing processors to efficiently run a range of production outputs.

The patented design offers distinct advantages over competitive units where the cooling roll moves as a unit and the frame is mounted either on ‘V” wheels or “keyed” wheels with the matching track design. Initial installation for these competing units is time-consuming with track leveling and grouting requiring 80 work hours to complete. In comparison, the patented G-Series roll stand has cooling rolls that are mounted on a linear motion guide track. Instead of moving the entire frame, only the cooling rolls move when access to the die network is required. Movement on the linear motion guide track is extremely precise and repeatable, ensuring exact tracking and precise sheet alignment. Initial installation of the G-Series roll stand takes only approximately 16 work hours. Leveling of the frame does not require track installation but instead uses leveling pads which are pinned to the floor.

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