momac Group

Repair of electric motors and generators „Reliability is our drive - Quality is our standard“

We dispose of many years of experience and of special techniques guaranteeing the overhaul / repair of electric motors / generators up to a unit weight of 20 t.

In particular our extensive mechanical equipment with boring mills, lathes and a certified welding shop enables us to carry out even extensive mechanical overhauling work quickly and inexpensively.

Repair and overhauling of electric motors / generators

As a tradition-conscious and future-oriented company we are committed to support you actively in the maintenance of your electrical machines and to set new standards concerning quality as well as service.

For many years, numerous customers benefit from the competitive advantage, achievable as a result of our performances, with reduced unexpected breakdowns and longer runtimes of the electrical machines.

We are at your disposal for repair work on electrical machines of almost all manufacturers.

Electrical apparatus for potentially explosive atmospheres

We hold the license of the land of North Rhine-Westphalia for the repair of Ex-motors of the protection class “increased safety”, “flameproof enclosure” as well as “intrinsically safe systems”.

We are authorized to test repaired electrical apparatus for potentially explosive atmospheres in accordance with § 14 Section 6 of the Industrial Safety Regulation (BetrSichV) with a nominal voltage of 1000V and a nominal power of 1000kW in the explosion groups II A to II C and the temperature classes T1 to T6 for the following types of protection

d.    Flameproof enclosure acc. to DIN EN 50018
e.    Increased safety in accordance with DIN EN 50019   and
i.     Intrinsically safe electrical systems according to DIN EN 50039.

  • Balancing work on runners up to 10 tons, Lmax 6,000 mm, Dmax 2,100 mm
  • Bearing exchange on electric motors / generators
  • Cleaning / drying of electric motors / generators
  • Contract balancing of runners and other rotationally symmetrical parts
  • Overhaul collector repairs
  • Overhaul of electric motors / generators, high and low voltage motors
  • Repair of sheet metal packages from electric motors / generators
  • Repair options for electric motors / generators
  • Basic revisions of electric motors / generators (including bearing replacement etc.)
  • Repairs / repairs of all types of electric motors / generators
  • Rewinding / winding renewal electric motors / generators (round wire, profile wire, form coils, …)
  • Stationary balancing of rotors from electric motors / generators
  • Vacuum pressure impregnation VPI Iso class H
  • Incoming inspection: visual inspection and electrical inspection
  • Disassembly of the electric motors / generators
  • Cleaning the electric motors / generators (sandblasting and steam blasting)
  • Damage analysis of the electric motors / generators
  • Estimate with picture documentation
  • Partial and full repair of sheet metal packages (if necessary)
  • Manufacture of windings (if necessary), i.e. renewal of the stator and rotor winding in round and profile wire
  • Mechanical reconditioning / repair (turning, milling, drilling, welding), e.g. refurbishment of bearing seats in the bearing cap or on the shaft
  • Dynamic balancing of the electric motors / generators up to 10 tons
  • Assembly of the electric motors / generators with new bearings
  • Vibration measurement of the electric motors / generators in the test field
  • Tests according to VDE and according to customer specifications in our test field
  • Painting of the electric motors / generators

ABB ®, AEG ®, Baumüller ®, BEN ®, Elin ®, emod ®, Leroy Somer ®, Loher ®, Schorch ®Siemens  ®, VEM ®, Weier ®, sowie an alten Maschinen von BBC ®, F&G, Gabe & Lahmeyer oder SSW (Siemens Schuckert Werke)

Three-phase motors as short-circuit or slip ring rotors

  • DC motors
  • Medium voltage motors / machines
  • High voltage motors / machines
  • Converters and generators
  • Wind power generators
  • Shunt motors
  • Gearmotors
  • Railway engines
  • Brake motors
  • Vibrators
  • Drum motors
  • Transformers
  • Electromagnets
  • Heavy industry
  • Chemistry
  • Power generation
  • Wind power
  • Railway / rail technology

Maintenance and repair of electric motors / generators

Tested quality

We are certified according to DIN EN ISO 9001:2015 and OHSAS 18001:2007 as well as NLF/ISO OSH 2001

Foter momac Group Zertifizierungen
We are at your service!

momac Group
Sales

Phone+49 (0)2841-1802.11
Fax+49 (0)2841-1802.50
E-Mailanfragen@momac.de

Kim Wörner
Electric Motors and Balancing

Phone+49 (0)2841-1802.78
Fax+49 (0)2841-1802.49
E-Mailk.woerner@momac.de