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AC Spindle Motors

Industrial servo motors come in a broad range of sizes and types. AC motors will typically be coupled with an encoder for precise control. They can be used to position ball screws, as well as operating a variety of geared devices. Spindle Motors are V3 class low vibration 3 phase induction AC motors. They offer extra low vibration performance and they are specifically designed for grinding machines and low-vibration applications. They are available in sizes from 1HP to 10HP.

The high-peak-torque capability of a high-performance AC spindle motor, combined with its low rotor inertia, enables higher acceleration rate-to-base speeds than are available with a standard AC motor. The general laws of physics determine the required torque values to accelerate and decelerate loads powered by spindle motors.

For applications that require higher maximum speeds, some spindle motors have a wye-delta winding selection option. This extends the spindle motor’s constant-horsepower maximum speed without mechanical gear changes.

When your AC spindle motor needs repair, your company’s operation can suffer – unless you send them to Paragon Technologies. Our fully experienced, qualified technicians will get them back to top performance capability and back in your hands in record time.

Repair Procedures:

  • Hypot and Megohm test the windings for shorts to ground during run-in and run-out.
  • Verify magnet strength and shorts between phases with back EMF testing.
  • Recondition or rewind windings.
  • Replace bearings and seals, when needed.
  • Replace machine pilot, shaft and mounting area, if needed.
  • Replace any damaged connections.
  • Verify encoder operation with custom software design, to check optics, processor and communication signals.
  • Run on a system drive and paint to specs.

Some of the Many AC Spindle Motor Brands We Repair:

  • Allen Bradley
  • Baldor
  • Cincinnati
  • Contraves
  • Control Tech
  • GE Fanuc
  • Getty's
  • Indramat
  • Mark II
  • Milacron
  • Mitsubishi
  • Setco
  • and many more