Brushless 'pancake' motors offer precise control

Believed to be the world's first truly brushless 'pancake' flat motors are ideal for applications where precise speed control, space saving designs and a long maintenance free life are essential.

PML is exhibiting an exciting new range of electric motors and drives at Drives and Controls on stand D132, Hall 9.

On show will be the world's first truly brushless 'pancake' flat motors, a new Intelligent Servo Drive and electric vehicle wheel motors.

PML's joysticks will also be on show.

Slimline and compact, PML's new brushless pancake motors are ideal for applications where precise speed control, space saving designs and a long maintenance free life are essential.

They feature PML's novel printed stator technology for extremely smooth cogging free torque.

The main advantages over brushed motors are faster running speeds and an extended life due to the lack of brushes.

The range comes in four sizes, from 60mm to 160mm diameter.

The new Intelligent Servo Drive PMC 90 can operate brushless (AC) or brushed (DC) motors from a single, cost-efficient package.

Brushless motors are controlled automatically when hall sensors are connected.

The unit's 40kHz PWM switching frequency is double that of most conventional drives and enables direct connection to the low inductance Printed Stator motors with no external choke.

A high speed RS 485 connection allows up to 31 drives to be linked to a central controller.

Built in safety features include short circuit protection, over travel limit switch inputs, emergency stop input, over and under voltage shutdown.

The new electric wheelmotors are ideal for electric vehicles, low speed heavy vehicle movement, high speed material handling, elevators, reeling / winding and direct drive turntables.

Developing high torque at low controlled speeds, these robust, compact motors save on battery power by being extremely energy efficient.

Standard flange fittings accommodate different wheel rim sizes, and the heavy duty tapered roller bearings can withstanding heavy radial loads.

Five sizes are available.

PML first made its name in flat servo motors for those applications with confined spaces.

From high specification motors in defence and aerospace industries, to affordable high quality versions in processing and printing industries, the list of applications also extends to instrumentation, medical and general industry areas.

PML joysticks also enjoy a reputation for being robust, high quality man-machine interfaces that benefit vehicle, motion control, construction and mobility sectors.

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