The IR Series frameless motors are axially compact brushless DC motors with a conventional internal rotor design. They feature a relatively high slot fill resulting in high torque density.  We offer two standard sizes, based on stator diameter, the IR9 and IR16 with a range of standard windings and stack lengths.  If these standard solutions don’t meet your requirements we will work with you to develop a specification perfectly optimised for your application.  PMW’s maximum slot fill manufacturing techniques and access to powerful grades of magnets means that we can optimise your motor to 94% efficiency at your load point.  Parameters for motor optimisation are speed, voltage, torque, efficiency, cogging torque and thermal performance.

PMW Dynamics frameless motor

Applications for the IR Series flat frameless motors include aerospace, defence, robotics, factory & warehouse automation.

Below is a table with some examples from the IR Series internal rotor motor range:

Frameless MotorsMotor Dimensions (Nominal) mmMotor Continuous Rating   
IR9 Motors

Stator O/DActive LengthTotal LengthVoltage VCurrent ATorque NmSpeed RPMPower W
652059908.5252460.52000105drawing
6520589010402851.024450473drawing
6520559015274271.78800148drawing
6520609017306351.43000400drawing
IR16 Motors

Stator O/DActive LengthTotal LengthVoltage VCurrent ATorque NmSpeed RPMPower W
652056152203812510.53.234001000drawing
65205715230583201.511.54480580drawing

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