Service Department at Stroitelna Mehanizatsia AD performs repairs of machinery, sets and units as well as complete refurbishment of construction machinery, including machines for different trenchless technologies.

The Service has mobile equipment for diagnostics at customer’s facility. Spare parts are imported directly from the producers and wide range of spare parts catalogues and instructions for repair of machines, sets and units are available.



  • Diagnosis and repair of hydraulic systems: cylinders, hydrodynamic and hydrostatic transmissions, axial piston, radial piston and gear-type pumps, hydraulic motors, valves and hydraulic cylinders 
  • Design, manufacturing and installation of hydraulic systems at customer’s request
  • Production of hydraulic hoses
  • Design, manufacturing and repair of hydraulic cylinders
  • Testing of the repaired units

Power units

  • Complete overhaul and partial repairs of internal combustion engines using original spare parts according to manufacturer’s technology 
  • Repair of gear-boxes (mechanical, Power Shuttle type and Power Shift type) and drive axles for construction machinery; repair of electric and electronic systems and modules
  • Testing of fuel injection pumps


  • All types of welding operations; overlaying welding of ferrous and non-ferrous metals
  • Welding by using Castolin equipment and consumables
  • Restoration of wear-resistant surfaces by using Castolin’s technology
  • Overlaying welding with tungsten carbide
  • Design and manufacruting of welded metal structures at customer’s request

Machine works

  • Restoration of articulated frame joints, booms and buckets with line borer at customer’s site
  • All types of turnery, milling and grinding operations related to the repair of parts and units of construction machinery
  • Production of new parts for construction machinery 
  • All types of fitting and assembly operations
  • Design and manufacuring of parts at customer’s request
Refurbishment of JCB
Refurbishment of RH90 boom
Refurbishment of EIMKO
Refurbishment of Volvo