Maxon Motor has added three extra motors to its range of brushless (electronically commutated) dc micro drives. The new 10mm and 13mm diameter units - the latter available in two different lengths to suit different shapes of equipment - expand customer choice within a crucial part of the size spectrum.
Keith Ellenden, CEO of Maxon Motor UK, explains, “The demand for EC (electronically commutated) micro motors is growing all the time - while the spaces in which designers want to fit them are becoming smaller. Our EC range already goes from 60mm right down to 6mm, but for many applications the very smallest units are simply not powerful enough. At 10mm and 13mm we can supply plenty of power without increasing the motor’s dimensions too much.”
Maxon’s EC 10 gives an output of 8W and reaches a maximum permissible speed of 80,000 revolutions per minute; the short version of the EC 13 has an assigned power rating of 6W, while the longer one offers 12W, and both will deliver a maximum permissible speed of 50,000 rpm.
To generate the highest possible torque in the tightest of spaces, Maxon uses NdFeB magnetic material in the rotors. To maximise precision and load capacity, the motors are pre-loaded with ball bearings.