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    Nema 34 Stepper motor, 3 Phase, 3.2A, 8.5N·m

    5 out of 5 based on 4 reviews | Write a review
    Economical price 3 phase Nema 34 hybrid stepper motor is typically open loop allowing for a high holding torque of 8.5N·m, with 3 wires and 1.2 degree step angle used in bipolar mode. It draws current of 3.2A, 145mm motor length, 14mm shaft size.
    SKU: ATO-STEP-34C320
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Cost-effective powerful Nema 34 hybrid stepper motor has 145mm length for CNC machine, 3D printer, robot arm, laser cutter and so on. This 3 phase bipolar stepper motor has the best attributes of the variable reluctance stepper motor and a permanent magnet stepper motor.

    Physical Specification

    • Model Number: ATO-FY86TC320A
    • Matched the Driver Model: ATO-FYTM2205T
    • Flanged Size: 86 x 86mm (Nema 34)
    • Motor Length: 145mm
    • Shaft Diameter: 14mm
    • Number of Leads: 4 wire
    • Weight: 4.7kg

    Electrical Specification

    • Motor Type: Bipolar Stepper
    • Step Angle: 1.2°
    • Rated Current: 3.2A
    • Holding Torque: 850 N·cm (8.5 N·m, 1204
    • Phase Resistance: 2.6Ω
    • Phase Inductance: 9.57mH
    • Rotor Inertia: 4560g·cm2

    Dimensions (Unit: mm)


    Dimension of Nema 34 3 Phase Stepper Motor

    Wiring Diagram

    Wiring Diagram of Nema 34 3 Phase Stepper Motor

    Speed-Torque Curve Diagram

    Speed Torque Curve Diagram of Nema 34 3 Phase Stepper Motor


    Nema 34 Stepper Motor 4N·m-8.5N·m Details

    Tips: Difference between stepper motor and DC motor

    The difference between stepper motor and DC motor in nature is that the DC motor can directly convert current into mechanical energy, and the stepper motor cannot transfer the current. The stepper motor controls the normal operation of the motor through pulse signal conversion, and the controlled objects are different between the two.

    The hybrid stepper motor guarantees the rotation of the stepper motor by inputting electric pulses. The input of electric pulses urges angular displacement or linear displacement to ensure that the number of pulses is proportional to the speed and frequency. If the winding direction is opposite, the direction of rotation of the motor will also be opposite. Control the rotation of the bipolar stepper motor by controlling the number of pulses and the direction of the winding.

    The DC motor is relatively simple. The armature is mainly powered by brushes. The surface current of the points is mainly consistent with the direction of the armature. The armature is mainly divided into N-pole and S-pole lower conductors. The conductor is guaranteed according to the left-hand rule. Be affected. In this way, the electrical windings of the entire DC motor will rotate, and then the DC electrical energy will be converted into mechanical energy.


    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 34 Stepper motor, 3 Phase, 3.2A, 8.5N·m
    High quality nema 34 stepper motor
    This nema 34 stepper motor was a good match. The cable may need to have some wires switched. Not all controllers have the same pin order. It was easy to change the order and works well.
    From: Loren | Date: 12/12/2022
    Was this review helpful? Yes No (0/0)
    Nice Nema 34 stepper motor.
    I got this Nema 34 stepper motor for my 3d printer. It passed the usual bench tests. It is standard Nema 34 specs and include wires. With this affordable price, I will buy more of these nice stepper motors.
    From: Marcus | Date: 28/07/2022
    Was this review helpful? Yes No (0/0)
    No issues so far.
    This Nema 34 stepper motor is quiet and has more power than my old one. Arrived in good shape with good wiring diagram. Low cost and works well. No issues so far, very happy with my purchase.
    From: Oscar | Date: 28/06/2022
    Was this review helpful? Yes No (0/0)
    Quality motor lots of torque and a great price!
    If you want to fit a 3D printer then you need this Nema 34 stepper motor. It works as expected and is easy to install. If I have a need for more of the motors would surly purchase this brand again.
    From: Danie | Date: 28/03/2022
    Was this review helpful? Yes No (0/0)
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