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34KM-K112-00W Stepper Motor

34KM-K112-00W Stepper Motor

Best price now

$615.66at DigiKeyChecked Nov 10

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Price facts

  • Last seen at $615.66 at DigiKey on Nov 10.
  • Our take on the 34KM-K112-00W Stepper Motor

    The NMB 34KM-K112-00W is a NEMA 34 frame stepper motor with a 1.8° step angle (200 steps per revolution) and a unipolar coil rated at 24 VDC and 3 A. It offers high torque for its size, making it suitable for CNC machines, 3D printers, and automation equipment. Compared to similar NEMA 34 motors, it provides standard accuracy (±5%) and a 14 mm shaft, but its unipolar design limits compatibility with common bipolar drivers. Owners appreciate its robust build and smooth operation, though some note it runs hot and requires a suitable heatsink.

    Best forCNC router and mill buildersHeavy-duty 3D printer upgradesAutomation and robotics projectsIndustrial positioning systems
    Pros
    • High torque output for demanding applications
    • Standard NEMA 34 mounting pattern for easy integration
    • Precision step angle of 1.8° with ±5% accuracy
    • Durable construction with ball bearings
    • Wide operating temperature range (-10°C to 50°C)
    Cons
    • Unipolar coil requires a compatible driver, limiting options
    • Low coil resistance (1.5 Ohms) demands careful current control
    • May run hot at rated current, needing ventilation or heatsink
    • Heavier than smaller NEMA frames, requiring sturdy mounting

    34KM-K112-00W Stepper Motor prices at every store

    • DigiKeyNew

      In stock

      $615.66Checked Nov 10
      Visit DigiKey

    34KM-K112-00W Stepper Motor price history

    Lowest price we've seen: $615.66 on Nov 10 at DigiKey. Tracked across 1 store since Nov 10.

    What reviewers say

    Users generally praise the motor's torque and reliability in CNC and automation setups. Some mention that it runs hot and requires a suitable driver, but overall satisfaction is high for the price.

    What people mention
    • TorquePraisedUsers report ample torque for driving heavy loads in CNC and automation applications.
    • HeatCriticisedThe motor can get quite hot during prolonged use, requiring ventilation or a heatsink.
    • Driver compatibilityMixedThe unipolar coil works well with unipolar drivers but needs rewiring or a special driver for bipolar setups.
    • Build qualityPraisedOwners note the solid construction and smooth rotation out of the box.

    Specifications

    Part Status
    Active
    Coil Type
    Unipolar
    Voltage - Rated
    24VDC
    Current Rating (Amps)
    3 A
    Steps Per Revolution
    200.0
    Step Angle
    1.8°
    Accuracy
    ±5%

    Questions and answers

    What driver works with this motor?
    Use a unipolar stepper driver rated for at least 3 A per phase, such as the TB6600 or DM542 in unipolar mode. For bipolar operation, the coil can be reconfigured if the driver supports it.
    Is this motor compatible with my 3D printer?
    It is a NEMA 34 motor, which is larger than the NEMA 17 motors common on most desktop 3D printers. It suits large-format or custom printers that use NEMA 34 mounts and a driver capable of 3 A.
    What is the holding torque?
    The datasheet does not list holding torque, but similar NEMA 34 unipolar motors typically provide around 4 to 6 Nm. Check the manufacturer's specifications for exact figures.
    How do I wire this motor?
    It has wire leads for each coil; connect them to your driver according to the unipolar wiring diagram. The leads are typically color-coded, but refer to the datasheet for the specific pinout.
    Does it come with a pulley or gear?
    No, the motor is supplied as a bare unit with a 14 mm shaft. Pulleys, gears, and couplings are sold separately.
    Where is the 34KM-K112-00W Stepper Motor cheapest?
    At DigiKey, for $615.66, as of our latest check.
    Size / Dimension
    Square - 3.347" x 3.347" (85.00mm x 85.00mm)
    NEMA Frame Size
    34
    Diameter - Shaft
    0.551" (14.00mm)
    Length - Shaft And Bearing
    1.457" (37.00mm)
    Mounting Hole Spacing
    2.740" (69.60mm)
    Termination Style
    Wire Leads
    Operating Temperature
    -10°C ~ 50°C
    Coil Resistance
    1.5 Ohms
    Rotor Inertia
    2400gcm²