SM34 Series (Size 34) Stepper Motors

SM34 Series (Size 34) Stepper Motors
  • Superior speed and torque range
  • Choose single or double shaft
  • Available with back mounted encoder
  • Industry leading warranty and support
  • 100% compatible with entire line of AMCI stepper motor drives and controllers
  • Description

    Stepper Motor - SM34 Series (Size 34)

    These size 34 stepper motors have been specifically designed to work with AMCI's stepper motor drivers.

    The result is a selection of powerful stepper motors 450 oz-in to 1100 oz-in. These size 34 stepper motors have four leads to simplify wiring, and are available in double shaft, single shaft, or with an optional 1000 line encoder mounted on the back of the motor.

    Available Versions

    SM34-450: Size 34, 450 oz-in, single or double shaft, 0.50 inch shaft
    Price | $275.75 - $264.75/ea 

    SM34-850: Size 34, 850 oz-in, single or double shaft, 0.50 inch shaft
    Price | $325.50 - $335.50/ea

    SM34-1100: Size 34, 1100 oz-in, single or shaft, 0.50 inch shaft
    Price | $415.50 - $426.50/ea

    Encoder Option: add to above pricing (requires double shaft)
    Price | $360/ea

    Note: Pricing is US Domestic only





    Consult the factory for availability

    Contact Sales


    Specifications: Stepper Motor - SM34 Series (Size 34)

    Part #Holding TorqueParallel CurrentMotor LengthRotor Inertia
    x10-3 oz-in-sec2
    Motor Weight
    SM34-450*467 oz-in4.00 A2.6"20.963.9 lb
    SM34-850*906 oz-in4.00 A3.8"42.486.3 lb
    SM34-1100*1175 oz-in4.00 A5.0"63.738.8 lb
    *Add letter D for double shaft (example = SM34-450D)

    *Add letters DE for double shaft with encoder (example = SM34-450DE)

    torque curves






    (curves generated using AMCI SD17040C or AMCI SD17060B stepper drives)



    The following table shows how to wire a four lead AMCI SM34 motor to any AMCI stepper drive.


    Driver Connections12 Inch Pigtail
    BCtapNo connection
    ACtapNo connection
    Wire Colors = Blue, Pink, Yellow, and Red

    Technical Drawings

    SM34 - Size 34 NEMA rated stepper motor

    SM34 - Size 34 NEMA rated stepper motor


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    Ordering Information

    AMCI's sales team takes the hassle out of placing your order. We'll advise on product selection, alternatives, lead times, and present you with point of purchase options. Call (860) 585-1254 or email AMCI sales today!

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    create your part number

    Generate your SM34 Series (Size 34) Stepper Motor part number by using this helpful ordering guide. Starting from left to right, use the following diagram and table to choose the desired options.

    NOTE: Customers using unipolar stepper motor drivers should consult AMCI Sales before specifying SM34 stepper motor

    Part Number Guide

    Part Number CharacterSM34 (Size 34) Stepper Motor Selections
    Nominal Holding Torque:450 = 467 oz-in
    850 = 906 oz-in
    1100 = 1175 oz-in
    Shaft Type:Blank*=single
    E=5Vdc differential 1000 line encoder installed
    Please note: a SM34 size 34 stepper motor with the factory installed encoder requires a double shaft motor. (e.g. SM34-450DE = valid number | SM34-450E = not valid)

    * Blank is used to indicate an option represented by no character in that location of the part number.


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