Repair of three-phase motors, electric machines such as inverters & gearboxes

You are looking for a technical service provider who repairs your drive technology such as motors and frequency converters ?

on site or in our workshop: As an engineering office/technical service provider, we repair motors, servo motors and other electronic components and devices such as frequency inverters for you or your customers.

Our customers come from the food industry (beverage industry), the steel and metal industry and the stone industry, among others. You too can profit from our many years of experience.

Repair of servo motors

  • Check
  • Disassembly
  • Cleaning
  • Balance control
  • Mounting incl. bearings and seals
  • Adjustment, test run
  • Testing according to VDE
  • Test report
  • Varnish
  • For almost all makes, spare parts are in stock .
  • Other makes on request. Provided that the packaging is suitable for shipping and the packaging dimensions and weight are specified by 11.00 a.m., the drive can be picked up by TNT on the same day.

Uncomplicated procedure

  • Step 1:
    Simply call us on weekdays between 8:30 a.m. and 5:00 p.m. (+49(0)211 17607186), send us an e-mail ( or use the contact form.
    Tell us the manufacturer and type and we will let you know whether the frequency inverter can be repaired and, depending on your description, whether it is also worthwhile economically. In case of doubt we can offer you a replacement at favourable conditions.
  • Step 2:
    Send us the frequency inverter or use our collection and delivery service.
  • Step 3:
    Within one working day you will receive a binding offer for the repair of your frequency inverter.

Why ATG Engineering?

  • We are also very familiar with older models and can help reliably and quickly.
  • Many years of close cooperation with the manufacturers of your drive technology and other service providers enable us to repair almost all devices, to procure even rare spare parts and to deliver your device back to you ready for operation.

Repair of servo motors and spindle drives with original manufacturer software.


Geared motors: Project planning & Sales

Own regular maintenance / cleaning

More often than you might think, it is impurities that lead to defects, e.g. in the unit’s own cooling system, or to age-related wear and tear, such as condensers drying out. The end result is the total loss of the power output stages and the energy supply. Therefore, the following applies: In drive technology, frequency inverters, drives etc. can be kept in operation for a long time by regular expert maintenance and preventive measures.

After professional cleaning and the replacement of typical wear parts, the appearance of many devices can be greatly improved.

We show you here how you can increase the service life of your drive technology with little effort: gearbox maintenance

If necessary, it is also possible to rent out replacement units (if in stock) during preventive maintenance!



Repair of AC servo and spindle motors, DC – servo motors, AC/DC- spindle drives, geared motors (this manufacturer) & replacement deliveries.

    • Cleaning
    • Repair
    • Replacement of bearings
      • Dynamic balancing for the corresponding vibration class (with balancing protocol)
      • Mechanical repair of …
        • Shafts
        • Keyways
        • Bearing seats
    • Stators: New winding, of course thermal winding protection is included
      • Electrical tests of the windings
        • Body short circuit
        • Winding short circuit
        • Shock pulse measurement
        • Internal resistances
    • Repair/replacement of holding brakes or, if useful, other spare parts

Repair of the drive technology of …

  • Bosch Rexroth
  • Siemens
  • SAD
  • ABB
  • SSB
  • MOOG
  • Fanuc
  • SEW Eurodrive
  • Kessler
  • Lenze
  • Baumüller
  • Browse
  • Indramat
  • Marvilor
  • Parvex
  • Kollmorgen
  • Pint
  • CT Control Techniques / Emerson
  • and more…

You need our repair services ?

Since 1993 we have been there for our further growing customer base. We would be pleased if we could also support you. Please contact us or …