Frameless servo motors offer efficient compact solutions for low voltage applications

Written by: Tom Austin-Morgan | Published:

Parker Hannifin has increased its range of frameless Permanent Magnet AC (PMAC) motors with the introduction of the low voltage K Series. These servo motors are suitable for use in applications where compactness, reliability, precision and cost-effectiveness are critical.

The CE-certified K Series helps simplify machine design as both the rotor and stator are directly implemented inside the system. With low voltage capability starting from 12Vac, the K motor series covers a speed range up to 10,000rpm, and continuous torque to 23Nm.

K Series servo motors are constructed with magnets glued to the rotor, compact copper coils for a shorter size and a large hollow shaft. The series is available in diameters of 32, 44, 64, 89 and 178mm along with three different lengths per diameter and three torque/speed levels per length.

Synchronous PMAC brushless motors occupy as little as a quarter of the space of asynchronous motor technology at the same power rating and offer higher efficiency of between 90 and 95%. In addition, K Series motors give full torque at low-speed, while accuracy is enhanced and vibration and inertia reduced.

Despite being lightweight, K Series motors provide high levels of inherent stiffness and robustness to help ensure accuracy. Natural cooling and maintenance-free operation are further benefits.

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