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    Nema 23 Stepper Motor, 4A, 1.8 degree, 2 phase 4 wires

    2-phase 4-wire Nema 23 stepper motor, with 1.8 deg. step angle(200 steps/revolution). Each phase draws current 4A, allowing for a holding torque of 2Nm. Low price and high quality, direct sale by manufacturer.
    SKU: ATO280-4004A

    Nema 23 Stepper motor, 2Nm in 80mm, 1.8 degree, manufacturer direct sale.


    Basics Model ATO280-4004A
    Holding torque 2Nm
    Current/phase 4A
    Resistance 0.65Ω
    Step angle 1.8°
    Rotor inertia 480g.cm²
    Weight 1.15kg
    Length 80mm
    Motor leads 4
    Technical parameters Step Angle Accuracy ±5%(full step, no load)
    Resistance Accuracy ±10%
    Inductance Accuracy ±20%
    Temperature Rise 80℃ Max.(rated current, 2 phase on)
    Ambient Temperature -10℃~+ 50℃
    Insulation Resistance 100MΩ Min 500V DC
    Dielectric Strength 500V AC for one minute
    Shaft Radial Play 0.06Max.(450g)
    Shaft Axial Play 0.08Max.(450g)


    Dimension Nema 23 L41-76

    Motor Connection

    Motor connection

    Tips: How to solve the problem about heating of the stepper motor?

    1. Reducing heating of the motor means reducing copper and iron loss. There are two directions for reducing the copper loss, including reducing resistance and current. It is thus required to choose the motor with small resistance and rated current when selecting the motor. As for 2-phase motor, the parallel cannot be used if the series one could be used. However, it usually collides against the requirements of torque and high velocity.
    2. As for the selected motor, it is necessary to make full use of automatic semi-flow control and offline state functions of the stepper motor driver, as for former of which the current will be reduced when the motor is at static state while as for the latter of which the current is cut off.
    3. In addition, as the current waveform approaches the sine and has less harmonic wave, the heating of motor with subdivided driver is less. There are few methods or reducing the iron loss. It is related to the voltage grade. Though high voltage driver motor could lead to the rise in high speed characteristic, the increase in heating is also brought.
    4. It is necessary to choose drive motor with proper voltage grade, giving considerations into indexes such as stability, heating and noise, etc.
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