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    Nema 23 2-phase Stepper Motor, 3A, 1.8 degree, 4 wires

    Favorable price stepper motor, phase current 3A, holding torque of 1Nm, 1.8 deg. step angle, size in Nema 23, new motor in perfect working condition and direct sale by manufacturer.
    SKU: ATO255-3004A

    Nema 23 Stepper motor, 1Nm in 55mm, 1.8 degree, 2 phase 4 wires, manufacturer direct sale.


    Basics Model ATO255-3004A
    Holding torque 1Nm
    Current/phase 3A
    Resistance 0.7Ω
    Step angle 1.8°
    Rotor inertia 200g.cm²
    Weight 0.7kg
    Length 55mm
    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: Application of stepper motor in car testing

    As for testing of numerous car braking elements, booster assembly of brake master cylinder in hydraulic brake system and brake vale in pneumatic brake system, it is necessary to use ball screw of motor drive in the test system to simulate the actual braking process of car brake by stepping on the brake pedal. Ball screw drives the master cylinder brake valve to reach various working conditions necessary for car brake so that various performance indexes can be tested. Meanwhile, there is no accumulated error in stepper motor during its motion the following performance is good as the angular displacement is in strictly and direct proportional to the input pulse. Therefore, the stepper motor is the actuating element with good performance in car brake element test system. System hardware is comprised of displacement sensor, force sensor and stepper motor. The IPC and data acquisition card is used to control core.
    Stepper motor drives ball screw through coupler to constitute augmentor; install force sensor on front end of screw mandrill to measure “input force of the test piece” of the output torque of stepper motor, control the start, forward and backward, stop of the stepper motor with IPC, and control the forward and backward speed according to the test program, measure the displacement of the stepper motor with displacement sensor, and indicate corresponding data of force and displacement through display, and then judge whether the air brake valve is qualified or not according to the related industrial standard.

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