ER11 Spindle Motor Kit [12000rpm] [48V]

ER11 Spindle Motor Kit [12000rpm] [48V]
  • Product Code:SQ5167
  • Availability: In Stock
  • $69.90
  • Ex Tax:$69.90

Tags: CNC, Air Cooled Spindle, er11 spindle motor


In machine tools, a spindle is a rotating axis of the machine, which often has a shaft at its heart. The shaft itself is called a spindle, but also, in shop-floor practice, the word often is used metonymically to refer to the entire rotary unit, including not only the shaft itself but its bearings and anything attached to it.
A spindle motor is a small, high-precision, high-reliability electric motor that is used to rotate the shaft, or spindle, on which the platters are mounted in a hard disk drive.
In some cases, the spindle motor can be made to accurately position by means of feedback to the controller for functions such as orientation for tool changing and can even be done with induction motor technology, usually 3 phase-type.
The CNC spindle is the heart of any mill. It consists of a rotating assembly with a taper where tool holders may be installed. A CNC spindle motor with the optional transmission of some kind rotates the CNC spindle. The transmission matches the highest power rpm range of the CNC spindle motor to the spindle RPMs that are ideal for the particular speeds and feeds of the material being cut.
CNC spindle motor contains different types of spindle. This CNC Spindle 300W ER11 Air Cooled 48V 12000RPM kit comes standard with a 3.175mm chuck. This motor is widely used by DIY users, with a good response, high speed and low noise, suitable for engraving PCB, acrylic, drilling, etc. 

52mm CNC Spindle Motor Application:

  1. CNC engraving machines
  2. used for high-speed profiling
  3. drilling
  4. cutting
  5. engraving
  6. groove milling of wood, plastics, aluminum, rubber, and other materials.

52mm CNC Spindle Motor Features:


  1. Power: 300W
  2. Diameter: 52mm
  3. Operating Voltage: 12V ~ 48 DC
  4. Speed: 3000rpm ~ 12000rpm (12V-3000,24V-6000,36V-9000,48V-12000)
  5. Cooling: Air-cooled
  6. Spindle Accuracy: 0.01mm~0.03mm
  7. Torque: 400mN.m
  8. Nut& Collet: ER11 3.175mm(default)
  9. Insulation resistance: > 2Mohms
  10. Insulation dielectric strength: 400V
  11. Motor length: 175mm
Power supply:
  1. Input voltage: 110Vac ~ 220V AC (50/60HZ)
  2. Output voltage: 48V DC
  3. Output power: 360W


  1. ER11 spindle motor Link

ER11 Spindle Motor Items:

  1. 1 x 300W DC Spindle Motor
  2. 1 x 48V 360W Power Governor
  3. 1 x 52D Mount bracket

Motor Specifications
Torque 400mN.m
Diameter 52mm
Length 175mm
Power 300W
Electrical Parameters
Input Voltage 110 ~ 220V AC (50/60HZ) (Power Supply)
Output Power 360W (Power Supply)
Output Voltage 48V DC (Power Supply)

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