Spare parts delivery on quick and timely basis

Scheduled and unscheduled maintenance

We have all manufacturing

(Oil, Gas and Chemical Machinery Plant)

and technological (Dresser-Rand) capabilities

English-Russian translation of various technical

and commercial documentation

UNGM-DR offers services on reverse engineering

for various assemblies, components and devices

Control and follow up at each project stage

Repair of MTDA-2.9-6.9-MP-U1 turbo-expander rotor


Repair of MTDA-2.9-6.9-MP-U1 turbo-expander rotor for Mubarekneftegaz LLC has been completed. During repair the following activities were performed:

  1. Machining of bearing journal.
  2. Manufacture of new compressor wheel end bearing bushings.
  3. Manufacture of retaining ring, shrink fit on rotor surface, followed by machining and grinding.
  4. Rotor balancing
  5. Reconditioning of bearing disk by machining and sleeving.