AZUMA MACHINERY
Services/Products

Products

Introduction of components Handled by Our Company

01Main propulsion unit for large vessels

  • Large vessels are often equipped with large 2stroke marine diesel engine for propulsion unit.
  • Using heavy fuel oil but comply with the latest environmental regulations.
  • Dual-fuel engines, which utilizing LNG,LPG or methanol as the primary fuel, is also on the rise.

Typical location of main diesel engine for a vessel.

Typical location of main diesel engine for a vessel.
  • Propeller is directly coupled with main engine.
  • To bring a ship to a stop, the main engine is reversed (generally counter clockwise viewed from aft.)
Typical location of main diesel engine for a vessel. Propeller
Components for maintenanceWelding and machining repair

02Handled components

We primarily focus on the maintenance and repair of components around the combustion chamber of marine large two-stroke diesel engines (camshaft controlled engines, electronically controlled engines). As these are critical components that also affect engine performance and operations, we undertake these tasks with a sense of responsibility.

  • Components for maintenance more
    • Fuel valve
    • Fuel pump, Fuel booster pump
    • Fuel Booster Pump
    • Fuel high pressure pipe
    • Exhaust valve driving pump, Exhaust valve actuator
    • Rollerguide(Fuel,Exhaust)
    • FIVA(Fuel Injection Valve Actuation) valve
    • ELFI(ELectric Fuel Injection) valve
    • Accumulator
    • Safety valve
    • Starting valve
    • Air drive Hydraulic oil pump
    • Fuel valve
    • Exhaust valve driving pump, Exhaust valve actuator
    • Fuel high pressure pipe
    • Fuel pump, Fuel booster pump
  • Welding and machining repair more
    • Exhaust valve spindle(Rebuilding of combusion & seat surface(Nimonic,Dura) , stem sliding surface by HVOF, etc)
    • Exhaust valve seat
    • Exhaust valve
    • Air cylinder for exhaust valve
    • Cylinder cover(Rebuilding of crack on O-ring groove for cooling jacket, crack on fuel valve insert hole, etc)
    • Piston crown(Rebuiding of combusion surface by welding, Replating chrome for ring groove, etc)
    • Piston rod(Fine polishing of sliding surface, etc)
    • Cylinder liner(Horning, etc)
    • 4cycle engine Exhaust Valve
    • Exhaust valve spindle
    • Exhaust valve seat
    • 4cycle engine Exhaust Valve
    • Exhaust valve
  • On-site contact service more
    • Overhaul of Fuel pump
    • Starting valve seat polish
    • Cam surface Polish
    • Cleaning of cylinder cover
    • Disassembling and reassembling of Exhaust valve including overhaul
    • Starting valve seat polish
    • Starting valve seat polish
    • Cam surface Polish
    • Cam surface Polish
  • Prepare to handle more
    • PIV(Pilot Injection Valve)
    • FBIV(Fuel Booster Injection Valve)
    • GI(Gas Injection) valve
    • Alpha lubricator
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