Top 10 CNC Spindle 4KW – Power Milling Machines

As an Amazon Associate I earn from qualifying purchases.

1. Mophorn


Mophorn Spindle Motor 4KW Square Air Cooled Spindle Motor ER25 Collect 18000RPM 220V CNC Spindle Motor for CNC Router Engraving Milling Machine 4KW Air Cooled

Mophorn #ad - Technical parameters: collet: er25 6 mm, power: 4 kw, voltage: 220 v, current: 10 a, Speed: 1-18000 rpm, Frequency: 300 Hz, Runout off: 0.01 mm, cooling: Air cooling. Note: the air-cooled motor is three-phase input. The nut using manganese steel is hardened with high precision, not easy to break the knife.

The efficiency & service life of the CNC router spindle can be significantly improved. Superior performance bearings: the high-speed core creates a more efficient & upgraded steel bearing, which significantly improves the hardness and rust resistance. Wide application: the cnc spindle motor kit is mainly used for engraving machine or used with frequency converter. Advanced balance technology: dynamic balance technology can effectively reduce the noise in the process of use.

Trustworthy heat dissipation: scientifically designed factory-made fan owns low noise and better heat dissipation effect. It uses air circulation to cool the heat generated by the spindle at high speed and has a good heat dissipation effect. The imported shaft has a high degree of concentricity, high precision & more durable. It's beneficial to the smooth & stable operation of the machine.
BrandMophorn #ad
ManufacturerMophorn #ad
Height4 Inches
Length14 Inches
Width5 Inches
Part NumberER25FLDJFX4KW0001V7



VEVOR Spindle Motor 4KW Square Air Cooled Spindle Motor ER25 18000RPM Collect & VFD Variable Frequency Drive 220V 4KW for CNC Router Engraving Milling Machine

VEVOR #ad - So both of them have stable performance, high quality, easy operation, less noise and so on. Works cooperatively: the air cooled spindle motor, together with  variable frequency drive inverter, it's definitely a nice combination to imporve the work efficiency and performace of the VFD.

Apart from this, it has low output ratting torque05hz-150% and low speed running ability. And the 5hp 4kw variable frequency drive VFD uses PID control, advanced calculous PID closed-loop arithmetic, quick responding speed and high suitability. And the  air cooled spindle motor also is made of high quality material. Great protection system: the perfect error protection and short circuit starting protection are applied in variable frequency drive inverter, which reduces the damage to the machine and extendeds the service life of the product.

Powerful performance: the  variable frequency drive inverter has quick responding speed and high suitability because that it adopts advanced calculous PID closed-loop arithmetic. Product details: the 4kw air cooled spindle motor features 4kw, 18000rpm, with eR25 6 mm collet. It will offer you an excellent security performance. Premium quality: the vfd adopts the japan mitsubish chip.
BrandVEVOR #ad
ManufacturerVEVOR #ad
Height7 Inches
Length16 Inches
Width8 Inches

3. TopDirect


CNC 500W Spindle Motor 0.5kw Air Cooled Milling Spindle Motor 110V MACH3 Speed Power Converter with 52mm Clamp and 13pcs ER11 Collet for DIY Engraving Engraver Machine by TopDirect

TopDirect #ad - Comes with:1x500w spindle motor, 1xspeed Power Converter, 1x52mm Clamp, 1x13pcs ER11 Collet. Power: 500w, input: ac110v, 000 rev / min, speed: up to idle up to 12, Torque: 5000G/CM. 100% service satisfactory, if you have any questions, please do not hesitate to contact us. 13pcs er11 collect set gripping range: 1mm to 7mm 1mm, 4mm, 6. 5mm, 2. 5mm, 5. 5mm, 6mm, 3mm, 2mm, 5mm, 1.5mm, 3. 5mm, 4. 5mm, 7mm. Diameter: 52mm, chuck portion length: 45mm, Chuck portion diameter: 16mm.
BrandTopDirect #ad
ManufacturerTopDirect #ad
Part NumberFGHHUJ

4. Mophorn


Mophorn 220V 4KW VFD Variable Frequency Drive CNC VFD Motor Drive Inverter Converter for CNC Router Milling Machine Spindle Motor Speed Control 220V2/4KW VFD

Mophorn #ad - Frequency setting mode: digital setting, analog setting, PID setting and so on. Wide application: used for constant torque loads such as hard starting: Air compressor, fans, HVAC units and variable torque loads such as pumps, etc.

Premium quality: inpute voltage: 220v, outpute frequency: 0-400 hz, inpute Phase: 1 or 3 phase as you like, inpute frequency: 48-63 Hz, Output Voltage: 208-240VAC, Outpute Phase: 3 phase. Powerful performance: with extremely strong anti-jamming capability; with low output ratting torque, external exception program instructions and alarm; Auto voltage regulation AVR technique, to achieve operation, zero speed, low speed running ability; Internal simple PLC, 6 multifunction input terminals, calculator, for ensuring the inverter load capability.

Various control techniques by both synchronization and non-synchronization, serial communication setting, dynamically realize fast starting without changing brakes. Security protection: adopts overload protection, restart protection, over-voltage DC voltage>400V or under-voltage DC voltage
BrandMophorn #ad
ManufacturerMophorn #ad
Weight6 Pounds
Part NumberMPO01



Output Voltage : 380V , inverter VFD Inverter 1.5KW/2.2KW/4KW/5.5KW Frequency Converter AT1 3P-Output CNC Spindle Motor Speed Control VFD Converter variable frequency drive Color : Model 360

HAILAN-H #ad - Simple to operate and wire. Fast start and stop response, large torque at low speed. By optimizing pwm control technology and electromagnetic compatibility, it satisfies users' requirement of low noise, low electromagnetic interference.

It has good anti-trip performance and ability to adapt to rough power, temperature, humidity and dust interference, greatly improved stability. Over current, overload, under voltage, over heat, over voltage, intelligent power module protection. This vfd uses unique control method to realize high torque, high precision and wide speed regulating range driving, with high performance.
BrandHAILAN-H #ad
ManufacturerHAILAN-H #ad
Weight3.31 Pounds

6. Zhong Hua Jiang


Zhong Hua Jiang CNC Spindle Motor Kits, 220V 4KW Square Air Cooled Spindle Motor +220V 4KW VFD + ER25-6MM Collet + Drill bits+aviation wire+power wire+wrenches for CNC Router machine

Zhong Hua Jiang #ad - Warranty assurance-we have 20 years manufacturing experience in this field, any question or problem, pls contact us, we will get you satisfied and get all problems resolved. Application-wood/plastic/aluminum /copper/brass carving/engraving machine, CNC router machine, small sized processing center, advertisement engraving machine, high speed centrifuge etc.

Advantage - authentic 4pcs upgraded steel bearings significantly extend working life 3 times longer than ordinary spindle motor; Advanced dynamic balance technology effectively reduce the noise and increase stability in the working process; Runout off less than 0005mm that 10times precise than ordinary spindle motor. Package include-1pcs 220v/4kw square spindle motor5000-18000rpm +1pcs 220v/4kw vfd inverter +1pcs Collet ER25-6mm + 20pcs Drill Bits+ aviation wire+power wire +3pcs wrenches.

It includes aviation wire, power wire and 3pcs wrenches to connect spindle motor with VFD. It will take just 5 minutes to install all and make all functions running. Easy and fast to install -the vfd need to be reset from 400hz to 300hzpls check video and word operation step on this listing.
BrandZhong Hua Jiang #ad
ManufacturerHuajiang Electric #ad
Part Number‎Zhj4500ss

7. Taishi


Air Cooled Er20 Collect Spindle Motor, 4 Bearing 4kw 5hp CNC Engraving Milling Grind Machine 18000Rpm 220v

Taishi #ad - 18000rpm high speed. Runout off:less than 0005mm high precision. Four bearing in our spindle motor, pass ISO9001 and CE Quality Certification. 300hz high frequency. 4kw 5hp air-cooled motor Spindle Er20 Collet Chuck.
BrandTaishi #ad
ManufacturerTaishi #ad
Part NumberUSTS4FG



HAILAN-H Inverter 3.5kw Air Cooled Spindle Motor Kit ER20 CNC Milling Motor +4kw Inverter/VFD for CNC Variable Frequency Drive

HAILAN-H #ad - Carrier adjustable by 16KHZ, completely soundless working environment;. With extremely strong anti-jamming capability. Broad voltage working area, normal running in 304V-456V;. Rs485 communication port, adopting standard international MODBUS main circuit control;. Low output ratting torque05hz-150%, low speed running ability;.
BrandHAILAN-H #ad
ManufacturerHAILAN-H #ad
Weight6.61 Pounds



HY HUANYANG CNC VFD 220V 4.0KW 5.0HP Variable Frequency Drive Motor Inverter Converter for Spindle Motor Speed Control

HY HUANYANG #ad - 0-400hz. You can just connected l1/L2 to any two of VFD input R/S/T. Warranty: 1 year discount replace. If there is an alarm in the product and you do not know how to operate, please contact the seller.

Input:1 or 3 phase 220v. Output:3phase 220v. Application motor :cnc router, elevator, extruder, conveyor, CNC machine, compressor, wingding machine, drilling machine, ventilator, milling machine, winder, grinder, mixer, slitter, pump, centrifuger and other speed control machines. Important note: ●dont support external resistorthe function needs to be customized by notifying the seller before purchase●If your motor is heavy load, pls choose a higher horsepower vfd or contact sales for model selection suggestion●If your motor is 50/60hz, you need to change the Hertz parameter of the VFD to be consistent with the motor. Frequency:0-50hz/60hz.
ManufacturerHuanyang Electrical #ad
Height5.9 Inches
Length8.7 Inches
Weight5.5 Pounds
Width6.7 Inches

10. Huanyang


CNC 4KW 4000w 220V 5HP Variable Frequency Drive Inverter VFD for Spindle Motor Speed Control

Huanyang #ad - This vfd can be used for constant torque loads such as hard starting: Air compressors, HVAC units. Universal ac vector VFD Variable Frequency Drive. Auto voltage regulationavr, decelerating Stop or Coasting Stop, DC Braking, Auto Reset and Restart. Power:4kw. Iso9001 quality certifications which means this item is the top quanlity item. Carrier adjustable by 16KHZ, completely soundless working environment.
BrandHuanyang #ad
ManufacturerHuanyang #ad
Height5.91 Inches
Length8.66 Inches
Weight5.51 Pounds
Width6.69 Inches
Part NumberUSTS4220V