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    4 kW CNC ATC Spindle, 40000 rpm

    5 out of 5 based on 2 reviews | Write a review
    Water cooled ISO20 ATC spindle motor with 4000W high power, 40000 rpm high speed, works at 3 phase 220V AC, frequency up to 1333Hz and torque 1.19 Nm, spindle tool changer equipped with VFD, high precision and efficiency, used for milling, engraving, and CNC router machines.
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    Delivery date: 6-12 days

    4000W automatic tool changer spindle motor with 40000rpm for sale online. Three phase 380 V AC at 1333 high frequency, ISO20 tool holder and torque 1.19 Nm, water cooling, matched with high quality VFD, used for CNC router machines.


    • Reasonable structure design, simple and compact configuration, easy to take apart.
    • High precision, inflexibility and efficiency, long operation life.
    • With high grade size, shape, position precision, and quality of the surface.
    • Enough abrasive resistance, vibration resistance, suitable size.
    • Work stable, low noise, enough fatigue strength.


    Model ATO-DC-0840A
    Motor power 4000 W
    Rated voltage 220V AC
    Phase Three phase
    Max speed 40000 rpm
    Max current 17 A
    Max frequency 1333 Hz
    Torque 1.19 N·M
    Cone at the end of the shaft pulsates ≤0.001 mm
    Tooling releasing air pressure 5.6-6.0 Kgf/cm²
    Tooling change method Automatic tool changer
    Tooling pulling force ≥1100 N
    Tooling back air pressure 5.6-6.0 Kgf/cm²
    Tooling connection ISO20 tool holder
    Cooling Water cooling
    Encoder Sine and cosine 1Vpp (choice)
    Coolant pressure ≥2.5 Kgf/cm²
    Approach switch PNPON
    Bearing lubrication method Grease
    Balance level G1
    Install method Clamp
    Vibration Value ≤0.8 mm/s
    Weight 7.65 Kg

    Note: The spindle motor and VFD shall be suitable with each other. The specifications and parameter settings of the VFD shall match the nominal parameters of the spindle motor. Otherwise, it will burn the spindle motor if the settings are not correct.

    Dimension (Unit: mm)

    4000W ATC Spindle Dimension


    4000W CNC ATC Spindle Details

    Tips: Maintenance of the ATC spindle

    • Clean the dust in the environment near the work area.
    • Regular accessories clean the front chuck of the spindle.
    • The side sealing air pressure of the automatic tool change spindle and the top tool change air pressure should maintain the three-stage filtering effect, and the side sealing air pressure must be open.
    • The tool change air pressure at the top of the automatic tool change spindle is turned on to a certain value, and the self-cleaning function of the spindle can be turned on.
    Existing reviews of 4 kW CNC ATC Spindle, 40000 rpm
    Best value for CNC routers
    For money and value, this 4kW ATC spindle motor with 40000rpm is a good choice, super quiet compared to the router I used. I would recommend it.
    From: Daniel | Date: 22/04/2022
    Was this review helpful? Yes No (0/0)
    Works Very Well
    Very nice 4kW ATC spindle. It's water-cooled, quiet, and runs at high revs. Cutting into the material is actually louder than the spindle itself. Very happy with the partnered VFD, it runs very smoothly.
    From: Michael | Date: 22/04/2022
    Was this review helpful? Yes No (0/0)
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