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    3.5 kW AC Servo Motor, 18 Nm, 2000 rpm

    Powerful 3.5 kW brushless AC servo motor comes in 150mm square flange size, 2000 rpm, 18 Nm rated torque, peak torque is 36 Nm, equipped with a 2,500 PPR incremental encoder. Low cost servo motor and manufacturer direct sale.
    SKU: ATO-SERVO-150S3500
    Free Shipping Worldwide
    Delivery date: 6-12 days

    High precision brushless AC servo motor for sale, 3.5 kW power rating, with a rated speed of 2000 rpm, max speed up to 5500 rpm, three phase 220V or 380V AC input power supply. Heavy duty industrial servo motor is widely used in automation control, embroidery machines, printing machinery, CNC machine, wood carving and other fields.


    Basics Model ATO150CST-M18020
    Matched Drive Model ATOMG-1000 (Click it to the product page)
    Square Flange Size 150mm
    Rated Power 3.5 kW
    Rated Voltage Three phase 220V AC (Optional: 380V AC)
    Rated Current 17 A
    Rated Speed 2000 rpm
    Rated Torque 18 Nm
    Peak Torque 36 Nm
    Weight 18 Kg
    Length 248 mm
    Technical Parameters Voltage Constant 71 V/ 1000r/ min
    Brake Voltage 24V DC
    Torque Coefficient 1.05 Nm/ A
    Torque Inertia 4.6 x 10-3 Kg.M2
    Line-Line Resistance 0.255 Ω
    Line-Line Inductance 1.3 mH
    Electrical Time-Constant 5.1 ms
    Encoder Line Number 2500
    Insulation Class Class F
    Safety Class IP65
    Environment Temperature -20℃ ~ +40℃
    Humidity <90%RH, (no dewing)


    • Accuracy: ATO AC servo motors realize closed-loop control of position, speed and torque, overcome the problem of stepper motor out-of-step.
    • Speed: Good high-speed performance, rated speed can reach 1000-3000 rpm.
    • Adaptability: ATO heavy duty servo motors with strong anti-overload capability, able to withstand a load three times the rated torque, especially suitable for occasions with instant load fluctuations and requiring quick start.
    • Stable: Our AC brushless servo motors have smooth low-speed operation, no stepping phenomenon similar to stepper motor will occur when running at low speed, suitable for occasions occasions requiring fast response.
    • Timeliness: The dynamic response time of motor acceleration and deceleration is short, generally within tens of milliseconds.
    • Safety: ATO AC servo motor protection grade is IP65, which meets the waterproof and dustproof requirements.

    Motor Dimension
    servo motor 150 dimension

    LA (without brake): 248mm, LA (with brake): 321mm

    Winding and Encoder Connection

    1. For servo motor winding

    motor Winding Plug Motor Line U V W PE
    Socket Number 2 3 4 1

    2. For incremental encoder

    Incremental Encoder Socket (15 Pin) Signal Definition 5V 0V B Z- U Z U- A V W V- A- B- W- PE
    Socket Number 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1

    3. For absolute encoder

    Absolute Encoder Socket (7 Pin) Signal Definition E- E+ SD- 0V SD+ 5V PE
    Socket Number 2 3 4 5 6 7 1

    Tips: Tendency for servo motors

    1. Small size and high efficiency: The latest permanent magnet material and optimized motor design are adopted, which can make the servo motor in small size produce very high torque. When the same model of motor matches different drivers, the maximum output torques is different. When the servo motors with same volume use different winding patterns and different number of poles, the output torques is different, too.
    2. Impact torque: The maximum torque can reach several times the rated torque.
    3. High-performance magnetic materials and high magnetic energy products are used.
    4. Both the servo motor and servo driver can be equipped with temperature monitor.
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