Soya 2 Phase Closed Loop Stepper Motor offers high efficiency, low vibration, continuous operation with the security of closed loop performance without hunting or gain tuning. Installed with PPR1000 encoder, worked with matched driver, the system substantially reduces heat generation from the stepper motor through the use of high-efficiency technology. It achieves up to 40% less power consumption, improved angle accuracy and is capable of driving large inertia loads. Gearbox，brake are available upon requirement. 2 Phase Closed loop stepper motors mainly are Nema 17, Nema 23, Nema 24, Nema 34 and Nema 42 closed loop stepper motor.