High Power Density 40-mm Brushless Motor



Maxon’s new EC 40 is characterized by high quality materials and high performance specifications.  It features a neodymium permanent magnet, stainless steel housing and welded flanges. It features a very flat speed/torque gradient (about 3.6 rpm/mNm), mechanical time constant 2.1 ms, permissible speed 18,000 rpm, and efficiency of 89%. The ironless winding offers extra quiet running and high stall torque.

Like all maxon motors, the EC 40 can be combined with a multitude of components, such as encoders or gears. The maxon modular system also includes the permanent magnet brake AB 32; it is designed for operating temperatures of 40 to +100°C and is the EC 40's perfect match. A wide range of compatible controllers, from 1-quadrant and 4-quadrant servo amplifiers to programmable positioning controllers, make the EC 40 a multi-talented high-power unit.

This new EC 40 is an excellent choice when it comes to industrial applications, logistics equipment, mobile robotics, packaging machinery, power tools, or aerospace.



  • high quality materials
  • neodymium permanent magnet, stainless steel housing, welded flanges
  • very flat speed/torque gradient: about 3.6 rpm/mNm
  • rated to 18,000 rpm
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