• Technical Parameters: Spec: φ3.15 x 8.5 in (Diameter: 8 cm x Length: 21.5 cm); Power: 2.2 KW; Voltage: 220V~250V; Current: 8A; Collet Size: ER20; Bearings: 3 bearings; Frequency: 400 Hz; Speed: 8000-24000 R/min; Runout off: less than 0.005 mm. The CNC spindle motor is mainly used for engraving machine or used with frequency converter.
• ER20 Standard Collet: The collet of the CNC spindle is quenched with manganese steel, and the runout is less than 0.005 mm, which has high precision and is not easy to break the knife, increasing the stability of the working process. Dynamic balance technology can effectively reduce noise during use.
• Powerful Bearing: The water cooled spindle motor adopts imported bearings with high accuracy, precision, and durability. Significantly improve the hardness and anti-rust performance.
• Low Noise & Heat Dissipation: The dynamic balance technology can effectively reduce the noise during use. The scientifically designed water circulation system has a better heat dissipation effect to ensure smooth operation.
• Fine Workmanship: The body of the CNC router spindle is made of high-quality stainless steel, equipped with a pure copper rotor. The upgraded version of the aviation plug can ensure the stability and security of the input power, and the dust cover prevents dust from entering the body.

Spindle Motor 2.2KW Water Cooled CNC Spindle Motor 2HP ER20 CNC Milling Motor 8000-24000 R/min for PCB Milling Machine
Dynamic Balance Design
Three High-quality Bearings
Noise Reduction and Water Cooling
Premium Material
Refined Internal Details
Multiple Application
Speed: 8000-24000 R/min,Product Dimension: 3.15 x 8.5 in / 8 x 21.5 cm,Voltage: 220V~250V,Frequency: 400 Hz,Runout off: Less than 0.005 mm,Power: 2.2 KW,Weight: 11 lbs / 5 kg