Press Release

September 18, 2013
Higher rotor moment of inertia is ideal for applications with large loads and high synchronism requirements
New Beckhoff AM8500 Servo Motors with Extended Performance Range Suit More Applications

SAVAGE, Minnesota, September 18, 2013 – In order to provide highly dynamic servo motor technology to a wider range of applications, Beckhoff Automation has released the new AM8500 series of servo motors. With an increased rotor moment of inertia, this advanced servo solution extends the performance range of Beckhoff servo motors.

The AM8500 servo motor series is suitable for all applications with larger external mass inertias, in particular CNC applications in machine tools and woodworking machines. Typical areas of application for the AM8500 servo motors also include printing machines as well as film winders and feeding drive units. The AM8500 series covers a wide performance range with four sizes and three lengths with standstill torques from 1.38 to 29 Nm. A particular highlight, which is featured on all servo motors from the AM8000 series, is the One Cable Technology (OCT), with which the power and feedback systems are combined into one standard motor cable.

Beckhoff servo motors are already characterized by outstanding dynamic characteristics and the special internal electromagnetic design for outstanding overload behavior. With the increased rotor moment of inertia, the new AM8500 series now provides further benefits for applications with demands for large loads and high synchronism. Due to the modified rotor geometry, the moment of inertia is increased, depending on the length, by 100 to 300% compared to previous AM8000 series servo motors.

As a result of the high rotor inertia, the control of the AM8500 is simplified in areas where a high external inertia must be moved, because the servo motors tend to vibrate less and can be adjusted much more easily by the servo controller. In some cases it is even possible to do without a gearbox if one is otherwise necessary only for the ratio of external to intrinsic inertia.

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