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    Nema 23 Closed Loop Stepper Motor, 2 Phase, 4.2A, 1.2N·m

    5 out of 5 based on 4 reviews | Write a review
    High torque Nema 23 closed loop stepper motor with encoder, 2 phase 4 wire, 4.2 A, holding torque at 1.2N·m, step angle 1.8 degree, motor length 76mm, shaft diameter 8mm. Low price hybrid stepper motor is used for 3D printer, robot arm, CNC machine, drawing equipment and sewing machine.
    SKU: ATO-STEP-23M420
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Low cost bipolar closed loop stepper motor for sale, two phase, wire colors of blue, red, green and black, no lost step, low noise, high torque and high efficiency.

    Physical Specification

    • Model Number: ATO-FY56EM420BC1
    • Matched the Driver Model: ATO-FYDB506T
    • Flanged Size: 57 x 57mm (Nema 23)
    • Motor Length: 76mm
    • Shaft Diameter: 8mm
    • Number of Leads: 4 wire
    • Weight: 1kg

    Electrical Specification

    • Motor Type: Bipolar Closed Loop Stepper
    • Step Angle: 1.8°
    • Rated Current: 4.2A
    • Holding Torque: 1.2 N·m (120 N·cm, 170
    • Phase Resistance: 0.44Ω
    • Phase Inductance: 1.4mH
    • Rotor Inertia: 280g·cm2

    Dimensions (Unit: mm)


    Dimensions of Nema 23 2 Phase Closed Loop Stepper Motor

    Motor & Encoder Wiring Diagram

    Wiring Diagram of Nema 23 2 Phase Closed Loop Stepper Motor

    Speed-Torque Curve Diagram

    Speed Torque Curve Diagram of Nema 23 2 Phase Closed Loop Stepper Motor


    Details of Nema 23 closed loop stepper motor

    Tips: Precautions for cleaning stepper motors

    If the permanent magnet stepper motor adheres to a lot of dust, it may cause it to run inefficiently. Therefore, it is necessary to clean the stepper motor. The following are the issues that need to be paid attention to when cleaning the stepper motor.

    1. The cleaning must be carried out with the power supply cut off. Wrong cleaning will cause safety hazards to the best stepper motor, threatening the safety of the motor. Therefore, the power supply of the motor must be cut off before the cleaning can be performed.
    2. The stepper motor needs to be protected during cleaning. The purpose of cleaning the stepper motor is to restore its working state, but if there is a wrong operation during the cleaning, it will cause the motor to be damaged.


    360 Days warranty

    Thank you for buying industrial automation products on, all products sold by ATO and the partner cover a 360-days-warranty, effective from the date of receiving the products.

    What is covered?

    ATO is responsible for providing free spare parts, free technical support to assist the customer to repair the defective products until the problem is solved.

    What is not covered?

    • Product purchased from anyone other than ATO store or a ATO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than ATO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by ATO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a ATO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
    Existing reviews of Nema 23 Closed Loop Stepper Motor, 2 Phase, 4.2A, 1.2N·m
    Very pleased with my purchase.
    This closed loop Nema 23 stepper motor is awesome. It holds its torque at high speeds really well, and has driven my CNC fantastically under very rapid speed and heavy spindle loads. Very pleased with my purchase.
    From: Della | Date: 27/07/2022
    Was this review helpful? Yes No (0/0)
    Great price and quality.
    This is a great Nema 23 stepper motor and is very strong. It always precise and doesn’t miss a step. If the power the stepper motor offers is enough for your application, this is definitely recommended for whatever you are going to do with it.
    From: Leland | Date: 29/06/2022
    Was this review helpful? Yes No (0/0)
    Work perfectly.
    Well packaged, just what I needed. This stepper motor performs very well for my application and exceeded my expectations.
    From: zzt | Date: 26/04/2022
    Was this review helpful? Yes No (0/0)
    Very nice closed loop stepper motor
    This is a very nice Nema 23 closed loop stepper motor. It has plenty of torque and speed for my application. Great price and work as described. I am looking into getting a tiny motor controller.
    From: John | Date: 10/03/2022
    Was this review helpful? Yes No (0/0)
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