EoW July 2010

technology news

Powering up the extrusion process

The Sampingranaggi division of SAMP SpA has introduced a series of four new, water-cooled extruder drives. The compact Powerpack TM drives are designed for easy ‘plug and play’ integration with single- or double-screw extruders on MHV extrusion lines. The torque servo motors of the new drives run at low speeds with the highest torque rates. The drive is short and compact, while the axial construction allows a better force distribution in the work direction. Power input is directly transferred into torque performance, so the units use less energy to produce maximum performance. The torque motor axis is located directly on the shaft of the speed reducer, minimising the number of joints within the drive and eliminating belts and other wear parts. The direct power transmission has no couplings and no vibrations; the drive operates at less than 70 dBA. Particular attention is given to the quality of the bearings and gears. The thrust bearing life is said to be 50,000 working hours at 700 bar – double the lifetime expected of an off-the-shelf solution and incurring less downtime for maintenance or bearing changes. Gears are made in-house to tight tolerances, manufactured for reduced friction. SAMP SpA – Italy Fax : +39 051 370 860 Website : www.sampsistemi.com

SAMP’s Powerpack extruder drive (photo courtesy Rene Tillman, ▲ ▲ Messe Düsseldorf)

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EuroWire – July 2010