EoW July 2010

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EuroWire – July 2010 25
technology news
The Sampingranaggi division of SAMP SpA has introduced a
series of four new, water-cooled extruder drives. The compact
PowerpackTM 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:
Powering up the extrusion process
SAMP’s Powerpack extruder drive (photo courtesy Rene Tillman, ▲ ▲
Messe Düsseldorf)