With more than 25 years of experience in the field of electric motor rewinding, we have refined our expertise to the point where we offer our rewinding service to the largest service companies in Europe.
For generators and electric motors, the most common causes of failure are worn bearings or interphase breakdown due to poor insulation as a result of the long life of the motor or environmental influences (temperature, water, dust, dirt, etc.).
Servo motor servicing
We have responded to the growing needs of the market and now offer companies comprehensive, fast and high-quality maintenance support. Servicing or repairing a servo motor requires an excellent knowledge of its structure and operation, its individual units and their settings.
Correct encoder setting is particularly important for servo motor operation and is also very demanding. The motor will not run or its torque will be drastically reduced if the encoder deviates from the factory settings by just three mechanical degrees.
Classic servo motor servicing includes:
- visual inspection,
- fault identification,
- encoder test,
- encoder setting,
- temperature protection test,
- cleaning,
- blasting,
- measurement of resistance against the casing,
- bearing seat measurements,
- Replacing bearings,
- bearing tolerance measurements in the caps and on the shaft, and other tolerances on the shaft,
- shaft repairs - welding and grinding, centre seats, new shaft construction,
- bearing preload,
- balancing the rotor,
- impregnation of the winding,
- replacing gaskets,
- bearing leakage,
- fine balancing,
- test run,
- OEM painting,
- service report.
DC motor servicing
The biggest disadvantage of DC motors is cooling. Most often, cooling is provided by an additional electric motor with a fan attached directly to the motor.
Motors are usually operated in harsh conditions where the air is full of impurities that pass through the motor via the cooling system. Impurities cause contact between the manifold lamellas, puncture between the commutation and the casing, uneven cooling, which causes the motor to overheat and thus lead to winding failure. Litter damages the sliding brushes, which in principle leads to a chain reaction of damage. Late repairs can lead to complete destruction of the motor.
Classic DC motor servicing includes:
- visual inspection,
- cleaning,
- blasting,
- dismantling,
- stator washing/drying,
- washing/drying the rotor,
- stator implosion,
- rotor impregnation,
- resistance measurement with the Schleich MTC2,
- rehabilitation of the collector - (ovality measurement, sawing, turning, louvres),
- bearing tolerance measurement DE,
- measuring the bearing tolerance of NDE bearings,
- changing DE bearings,
- changing NDE bearings,
- replacing gaskets,
- changing the sliding brushes,
- tacho generator test,
- test run,
- RAL OEM painting,
- Final report.
Spindle motor servicing
When servicing spindle motors, in addition to an excellent knowledge of bearings (their operation, run-out, preload, lubrication, temperature loads, radial and axial forces, etc.), it is essential to know how to dynamically and finely balance the rotor of the motor. The preparation of the spindle motor components themselves is extremely important.
Tolerances are measured in thousandths of a millimetre for all motor types. The work therefore requires more precise and sophisticated handling, and special equipment, as conventional micrometers are not precise enough to measure. The force and pressure gauges for bearing preload must also be suitable and calibrated, and require a significant financial investment.
Classic spindle motor servicing includes:
- visual inspection,
- disassembling the motor,
- fault identification,
- measurement of tolerances of all adjacent and abutting surfaces,
- checking power electrical connections,
- checking the electrical signal connections,
- encoder/sensor test,
- encoder/sensor setting,
- resistance measurement with the Schleich MTC2,
- cleaning of components,
- an overview of the components,
- bearing seat measurements,
- changing bearings,
- static balancing of the rotor,
- bearing preload,
- servicing the forced cooling fan,
- assembly,
- fine balancing of the spindle,
- motor testing,
- Bearing break-in (5 hours),
- Final report.
Actuator servicing
Actuator servicing includes:
- visual inspection,
- exhibiting,
- cleaning,
- resistance measurement with the Schleich MTC2,
- DE bearing seat measurement,
- NDE bearing seat measurement,
- DE bearing replacement,
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Jelenčeva ulica 1
4000 Kranj
Slovenia
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Working hours
Monday to Friday
from 7. until 15. hours