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The Case for Hollow Shaft Torque Motors
Today's machine designer must evaluate more factors than ever in approaching a new project. Likewise, the integrator and retrofit engineer has expanded options, not only as a result of new technologies, but also because of critical areas of focus such as reduced energy consumption, faster assembly time, vendor reduction and smaller footprint achievement.
In the realm of motion control, one type of motor with a relatively short history has made significant advancements that necessitate a new look at its potential in many application areas. These applications range from machine tool rotary tables to various packaging, printing, converting, extruding, papermaking, plastic film and materials handling machinery, anywhere direction must be reversed with a very high degree of accuracy, no backlash (hysteresis) and the maintaining of motion control, contrasting the necessary decoupling of a conventional motor and gearbox. This white paper discusses the often-overlooked permanent magnet, synchronous torque motor.
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