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    3.7kW Water Cooled CNC Spindle Motor, 24000rpm, 380V, 400Hz

    ATO 3 phae 3.7kW spindle motor with 24000rpm high speed, 10A at 380V AC 400Hz, ER20 collet, φ100mm diameter, stable performance and high precision bearing. Water-cooled type spindle motor is designed for wood carving CNC machine.
    Free Shipping Worldwide
    Delivery date: 10-15days


    • Cooling: Water cooling, Power: 3.7kW, Torque: 1.45Nm, Collet: ER20
    • Voltage: 380V AC at 400Hz, cooled spindle motor speed: 0-24000rpm
      NOTE: *Spindle need to be equipped with VFD to use. Rated frequency of spindle is 400Hz, if you input 220v voltage at 50hz or 60hz, it will damage the spindle and vfd DOES NOT support external resistor.
    • Fast response, strong overload capacity, low noise and high mechanical precision.
    • High quality 4pcs bearings (7005Cx2 + 7003Cx2), runout off less than 0.02mm, tapered bore less than 0.01mm. In extremely high speed working environment, ordinary bearing can not ensure this high rotate speed for using for long time.


    This series water-cooled electric spindle motors are applicable to CNC engraving machines and used for high speed profiling, drilling, cutting, engraving and groove milling of wood, plastics, aluminum, rubber and other materials.

    3.7kW Water Cooled Spindle Motor Specification

    Model STZ100-3.7-ER20
    Power 3.7kW
    Diameter φ100mm
    Phase 3 Phase
    Speed 24000rpm
    Voltage 380V AC
    Current 10A
    Frequency 400Hz
    Torque 1.45Nm
    Cooling Type Water-cooled
    Lubrication Grease
    Thermal Class Class F
    Protection Class IP50
    Certification CCC, CE, RoHS, UL, VDE
    Warranty Bearings for half a year, other parts for one year
    Joint of Nose ER20 (φ3.175-φ13)
    Bearings Type 7005C P4*2 & 7003C P4*2
    Application Woodworking & Plastic
    Weight 9kg

    3.7kW Water Cooled Spindle Motor Dimension (Unit=mm)

    3.7kW water cooled cnc spindle motor size

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