A complete systems approach to motorized spindles for milling, boring and grinding

• A drop-in unit that replaces other major brands with a more powerful, liquid cooled (TELC) motor. TENV is available.
• Embedded thermistor motor protection senses overheating conditions before serious damage occurs.
• System components; spindle, variable speed AC drive and spindle cooling chiller/circulator have been matched for optimal compatibility. The variable speed drive programming has been optimized for each motor size.
• MT spindles, like all SKF Precision Technologies spindles, achieve their accuracy through precise manufacturing of each component in the assembly, not by grinding the assembled spindle into spec.
• HP at Max RPM is S1-100% Duty Cycle Rating (24/7/365)

Model

Tooling

Max. RPM

HP at Max. RPM

MT350

#30 N.M.T.B. Taper, HSK C50, Bore Taper

11,800

3.6

MT400

#40 N.M.T.B. Taper, HSK C63, Bore Taper

11,000

5.5

MT550

#40 N.M.T.B. Taper, HSK C63, Bore Taper

9,300

12.0

MT650

#50 N.M.T.B. Taper, HSK C100, Bore Taper

7,800

20.0

Integrally motorized closed loop spindles

• Cartridge sizes from 120 mm to 230 mm
• Speeds from 6,000 to 36,000 RPM
• Dynamic, Adaptive Preload Control
• Ceramic SKF CE bearings
• Automatic draw bar available for auto tool changing

Synchronous motor spindles

Synchronous motor spindles are thermally stable and eliminate heat transmission, thermal expansion and vibration. They are inherently constant-speed motors and operate in absolute synchronism with line frequency. This type is often used where exact speed of the motor must be maintained. The speed of the spindle is determined by the number of pairs of poles and line frequency. Call SKF Precision Technologies for consultation on how synchronous motor spindles can benefit your business.

For complete engineering & selection guides click here and download
Gamfior's high-speed milling spindle catalog

American Precision Spindles