The new EC-max 40-mm brushless motors deliver the performance and lifetime of a brushless motor, but at a reduced cost because of improved automated manufacturing processes. The motors are electronically commutated, thus enabling extremely long motor life, because there are simply no mechanical brushes to wear out. Hall effect sensors are built into the motor in order to provide feedback to the control electronics. By assembling the motor so that the coils are outside the rotor, good heat dissipation and high overload capability is attained. 

The motor, which has a stainless steel housing, is 88 mm long and has a diameter of 40 mm. Its continuous output power is 120 W. Its maximum speed is 12,000 RPM.  The maximum continuous torque is up to 195 mNm, depending on the winding. The ambient temperature range is –40° to 100°C. Using high-energy neodymium magnets results in an extremely responsive mechanical time constant of 5 ms, while minimizing overall size. Using electronic commutation generates minimum electrical noise. Motors are offered with several different windings to optimize the desired speed with available voltage. Complementing the motors are gear heads, encoders, brakes, and control electronics.

Because of their high performance and long lifetime, the EC-max 40-mm motors are well suited for a variety of applications, including automation, biomedical devices, pick and place machines, robotics, pumps, and semiconductor manufacturing.

Maxon Precision Motors, Inc. 
www.maxonmotorusa.com