4pole High Torque Motor

By applying 4-pole magnet, effective magnet density area is enlarged, and the torque constant is greatly enhanced.

As a pioneer in coreless motors, Orbray has pursued development of high torque motors. Generating high torque by enlarging the magnet or inputting a large current has its limitations in terms of heat generation and magnet materials. Orbray tried to increase torque by increasing number of magnet poles form 2 to 4.
By applying a 4-pole magnet, the effective magnet density area is enlarged. As a result, it contributed to a higher torque constant and low current consumption. Moreover, it enhanced mechanical time constant, so even the response speed became quicker.
Using diamond processing technology, a 4-pole magnet processing method has been established in Orbray.

Brushed Motor

Brushless Motor