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

Booster rotor repair


In the production workshop of our company the repair of С325ГЦ2-650/6-56М12 ДКС-5 booster rotor for UP Transgaz (Gazli UMG) has been competed. The following works have been done:

  1. Spectral analyses of the coupling to define the grade of material.
  2. Welding deposit of coupling inner diameter and heat treatment.
  3. Dye penetrant inspection of all eight impellers.
  4. Polishing of all bearing journals.
  5. Machining of bearing journal, coupling and thrust disc.
  6. Polishing of bearing journal for balancing piston, sealing bushings, all impellers.
  7. Assembly and balancing of rotor.