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    Nema 34 Stepper Motor Bipolar, 4.5A, 1.8 degree, 4 wires

    Brand new Nema 34 stepper motor, 4.4Nm holding torque, 4.5A phase current and 1.8 degree step angle. Motor type is Bipolar and body size is 80mm. Low price and manufacturer direct sale.
    SKU: ATO280-4504A

    Nema 34 Stepper motor bipolar, 4.4Nm in 80mm, 1.8 degree, manufacturer direct sale.


    Basics Model ATO280-4504A
    Holding torque 4.4Nm
    Current/phase 4.5A
    Resistance 0.65Ω
    Step angle 1.8°
    Rotor inertia 1600g.cm²
    Weight 2.4kg
    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)


    stepper motor dimension L60-120

    Motor Connection

    /Motor connection

    Tips: Classification of stepper motor according to the drive mode of stepper motor

    According to the drive mode, stepper motor is divided into constant voltage and current drive. The constant current drive is also divided into unipolar and bipolar drive.
    Drive circuit of the constant voltage drive is simple, but the function of electronic commutation is realized. The cost is low. It is generally applicable for rotation at velocity lower than 150rpm and the occasions of large using quantity and low cost. The most common drive voltage of constant voltage is 12V DC. There is also 24V DC or other voltage. The drive voltage of the constant voltage is generally equal to or slightly larger than the phase voltage of the stepper motor. The drive voltage should not be increased randomly. Otherwise, the stepper motor will be halted if working current is too large. The resistance and inductance of stepper motor with the constant voltage drive is generally large. Along with the rise in rotational velocity of the motor, EMF will be increased rapidly, and then the input voltage is offset. Therefore, the working torque will be reduced rapidly along with the rising rotational velocity, so it is only applicable to the low-velocity application occasion.
    Constant current drive is chopping wave drive. The drive voltage can be higher a lot than the phase voltage of motor. The working torque will be less attenuated when the motor rotates at high velocity. The stepper motor with general constant current drive is advised to be applicable for the range of 90-900rpm. As for the bipolar drive of stepper motor with the same size and inductance value, due to small resistance value and the working current can be large, the holding torque is large and it is the mainstream drive mode. As for the unipolar drive, it is only more advantageous over torque than bipolar drive if higher than 1800rpm only under the circumstance of very high velocity.

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