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    4-wire Nema 34 Stepper motor, 3A, 1.8 degree, 2 phase

    $116.77
    Nema 34 2 phase 1.8 degree per step stepper motor with excellent quality and reasonable price, high holding torque and low power consumption, sell by manufacturer directly.
    SKU: ATO2120-3004A
    Delivery date: 6-12 days

    4-wire 2 phase bipolar Nema 34 stepper motor, specified to have a maximum current of 3A, resolution of 1.8 degree/step, torque of 8.4Nm.
    Specifications

    Basics Model ATO2120-3004A
    Step Angle 1.8°
    Length 120mm
    Weight 4kg
    Current 3A
    Resistance 2.3Ω
    Holding Torque 8.4Nm
    Motor Leads 4
    Rotor Inertia 3200g-cm2
    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. 500VDC
    Dielectric Strength 1Min. 500VAC·5mA
    Shaft Radial Play 0.06Max. 450g
    Shaft Axial Play 0.08Max. 450g

    Dimension
    stepper motor dimension L60-120
    Motor Connection
    Motor connection
    Tips: The reasons why the stepping motor suddenly stops when it starts to run
    If the stepper motor doesn’t rotate sometimes or motion back and forth on the spot when starting, it is generally necessary to give considerations into inspection of following aspects:

    1. When selecting the motor, whether the computing of working torque is large enough and can drive the load. Therefore, we generally recommend users to select the motor whose torque should be larger than actual demands by 30%-50% of. For the stepper motor cannot rotate around overloading, no matter the moment, step out will be caused. If serious, the stalling or repeated and irregular motioning on the spot will be caused.
    2. Whether the input stroke pulse of the upper controller is correct. Firstly, it is necessary to set 5V and 15mA to have optocoupler stably conducted, whether the frequency of input is high and it is filtered by optocoupler.
    3. Whether the start frequency is too high and acceleration process is set on the start procedure. It is better to begin accelerating to the set rate from the start frequency regulated for the motor. No matter the acceleration time is very short, or it cannot be stable.
    4. When the motor is not fixed, such situation may emerge sometimes, which belongs to the normal situation for the intense resonance of the motor is caused and it the stalling state is generated. Therefore, the motor should be fixed.
    5. Whether there is lack of phase, if so, the motor will joggle and cannot rotate normally. As for 2-phase stepper motor, the motor also cannot work normally in case of wrong phase.
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