Small electric motors are available in both AC and DC types. DC motors offer certain advantages over AC units. They are more compact, have a higher power to weight ratio and speed can be controlled by varying the supply voltage.

Several years ago, Igarashi developed an AC motor programme based on the design of a DC motor. These motors have the same compact construction as the DC motors and are sometimes even available with an internal rectifying system.

The final specification can be adapted to customers´ needs to produce an ideal solution. An individual characteristic curve is provided for each motor based on the operating voltage.

There are 4 curves shown in the diagram:
* The speed curve (n) that is a straight line and can be shifted parallel to the original curve by increasing or reducing the voltage. The point where the speed curve intersects the x-axis represents the stall torque.
* The current consumption curve (I) is also a straight line and gives the current consumption from no load to stall.
* The output power curve (P) shows the power over the torque range.
* The efficiency curve is a curve that can be calculated as a quotient of the output power and the power consumption over the torque range.

We specialize in adapting our motors to meet customers´ specific requirements and can supply many variations.