Repair and Maintenance of Electric Motors
Our company is equipped with a rich material and technical base, as well as highly qualified specialists. We have our own technological developments in the field of repair and maintenance of electric motors with power ratings from 0.5 to 300 kW from both Russian and foreign manufacturers of the following types:
- General-purpose motors, including multi-speed motors with squirrel-cage rotors.
- DC motors.
- Electric spindles operating at frequencies up to 800 Hz.
- Schrage-Richter type motors.
- Cranes and metallurgical motors.
- Standard and gearless elevator motors.
- Servo drives from 0.1 kW to 500 kW, including those for augers.
Our company has its own production and technical base equipped with metalworking equipment, including:
- Our own production of windings from round wire.
- Turning machines.
- Universal milling machines.
- CNC milling machines.
- High-frequency induction heating units.
- Welding equipment for all types of metals.
- Induction heating units for precise and correct bearing fitting.
- Balancing machines for balancing rotors of very small to medium weight (from 0.2 kg to 1000 kg).
Post-Repair Testing of Electric Motors
Every electric motor that has undergone repair in our company is subjected to a series of tests before shipment. This is necessary to control the quality of the rewinding and the overall condition of the mechanical parts. Depending on the type of electric motor, the list of required tests varies. Below is a list of mandatory points for electric motors of any type:Insulation resistance check.
Winding resistance check by phases.
No-load current check and recording.
Bearing unit condition check.
Imbalance level check of rotating parts.
If any deviations from the standard indicators are found, the electric motor is returned to production to identify and eliminate deficiencies.
Repair Time
For high-quality repair of electric motors with power up to 55 kW, it takes from 3 to 5 working days. For electric motors with power over 55 kW, it takes from 5 to 7 working days.Urgent Repair from 8 Hours
In most organizations, urgent repair of electric motors is considered a priority repair, while the motors are either not impregnated at all or are impregnated but the standard varnish does not have time to dry. Thus, the customer receives an electric motor that will not last long.We have our own approach to urgent repair, supported by many years of experience:
- We allocate our leading specialists with vast experience (over 15 years).
- We do not use open flame for stator cleaning; the motor rewound by us delivers 100% power.
- We use the highest quality insulation with increased strength reserve.
- For winding manufacturing, we use enamel wire with a higher temperature index.
- Our own multi-stage winding impregnation technology using imported compounds that have no analogues in Russia.
- We apply quality control at each stage of production, eliminating the risk of defects.