Servo and Spindle Motors

In the fast-paced world of the machine tool industry, there is one thing everyone fears — downtime. And when your machine is down because of a bad servo or spindle motor, you don’t want to spend time searching for a repair facility that you hope will get you running again. Call Dreisilker!

For over 50 years, Dreisilker’s team of technicians and service representatives have assisted thousands of customers in returning their machines’ servo and spindle motors back to their original (and often better than original) condition quickly and accurately. Our close ties to motor manufacturers and machine builders like Mitsubishi, Mazak, Yaskawa, Franz Kessler, Fuji, Fanuc, GE Fanuc, Siemens and others, enable us to provide our clients service that is truly one step above the rest.

Other repair facilities across the country boast of their servo motor repair but they sometimes fall short of expectations. By contrast, Dreisilker’s ongoing commitment to precision repair of servo motors meets, and generally exceeds, customer’s high expectations. We complement that ability, and proudly stand behind, our precision repair of high speed AC spindle motors. Our one-year warranty on all parts and labor demonstrates that point. From ABB servos to spindle motors for Z&B grinders, we offer comprehensive motor repair for CNC machines and industrial automation equipment.

At Dreisilker, we match the rigid specifications required for motors in the machine tool industry. Shafts and bearing housings are measured with micrometers and new shafts are precision ground. Assembled motors are checked to ensure they meet the manufacturer’s geometric tolerances. Rotating assemblies are two-plane dynamically balanced on our state-of-the-art Schenk CAB 690 balancing machine.

All motors that require rewinding at Dreisilker use our trademark Motor Safe™ Repair. Stators and armatures are stripped using a non-burnout method that has proven to preserve the integrity of stator and armature laminations. All motors are wound with class H insulation materials. Our trickle varnish technique provides superior slot fill creating a more rigid winding ideal for machine tool applications. The insulation class and the varnishing processes used at Dreisilker allow us to provide our customers with a winding that far outlasts the warranty under normal conditions, and is often an upgrade from the original winding.

Dreisilker’s uncompromising attention to detail continues through our final testing processes. All spindle motors are tested on our spindle drives at full load r.p.m. enabling our technicians to analyze motor vibration and solve difficult to detect problems. Liquid-cooled, oil mist lubricated motors undergo a run-in procedure similar to precision spindles. During the run-in, coolant temperature and bearing temperature are constantly monitored.

Contact Us Today for your servo and spindle motor repairs.