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Tamrotor Marine (Finland)

TCR Series

Air Compressor · Air Compressors

Technical data from manufacturer or class sources · not yet verified by a person​​‍‌​⁠​⁠‍‌⁠‌‌‌‌​​‍‌​
30-160 m³/h FADCapacity
Compressed Air (Starting Air / Service Air)Medium

Tamrotor Marine ist ein finnischer Kompressor-Hersteller aus Tampere. Die TCR-Serie ist ein kompakter Startluft-Kompressor in V-Anordnung, besonders verbreitet auf finnischen und skandinavischen Schiffen (Wärtsilä-Neubauten). Tamrotor gehört heute zur Gardner Denver / Ingersoll Rand Gruppe. Marktanteil ca. 10% in Europa, geringer in Asien.

Specifications

Technical data.

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Type2-Stage Reciprocating Air Compressor
Drive TypeElectric
ConstructionCast iron, water-cooled, trunk piston, V-arrangement
Service

Service notes.

What our service work and the manufacturer documentation say about keeping this model running.

Valve overhaul every 4,000 hrs. V-belt check/replacement every 2,000 hrs on belt-driven models. Complete overhaul 16,000-20,000 hrs.

Inspection

Common failures & inspection points

Inspection

Inspector Detail

Common issues

  • Piston ring and cylinder liner wear on the low- and high-pressure stages, reducing delivered pressure/flow
  • Valve plate (suction/discharge) fatigue failure, a common wear item on reciprocating air compressors
  • Intercooler and aftercooler fouling reducing cooling efficiency and raising discharge temperature
  • Crankcase oil contamination with condensate/carbon if drains are not managed
  • Safety/relief valve seat leakage or seizure from lack of periodic testing
  • Air intake filter fouling reducing volumetric efficiency
  • Carbon buildup in the discharge line increasing fire risk if oil carryover and cooling are not controlled

Inspection checklist

  • Check final discharge pressure and compare to the nameplate rating under load
  • Inspect and renew suction and discharge valve plates per the running-hour schedule
  • Check piston ring wear via crankcase inspection where accessible, or by monitoring blow-by/oil consumption trend
  • Verify intercooler/aftercooler condition and clean if fouled
  • Test safety/relief valves for correct lift pressure
  • Drain and inspect moisture separators/automatic drains for correct function
  • Check air intake filter condition and replace if restricted
  • Inspect crankcase oil for contamination and change per schedule
  • Check drive belt/coupling alignment and condition
  • Verify automatic start/stop and low-oil-pressure trip functions where fitted

Service intervals

Lube oil changecommonly 500-1,000 h for reciprocating air compressors of this size, or per the manufacturer's oil specification - confirm against the compressor manual
Suction/discharge valve plate inspectiontypically 1,000-2,000 h depending on duty cycle - confirm against the manufacturer's schedule
Air intake filter changecondition-based on differential pressure, commonly every few hundred hours in a marine engine room environment
Safety/relief valve function testannually, and at each class survey of the starting air system
Intercooler/aftercooler cleaningcondition-based on discharge temperature trend, checked at each major service
Automatic drain function checkat each routine engine room round

Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.

Critical spares

  • Suction and discharge valve plates for both LP and HP stages
  • Piston rings and gudgeon pin bushes
  • Cylinder liners (LP and HP)
  • Safety/relief valves
  • Automatic condensate drain valve
  • Air intake filter element
  • Intercooler/aftercooler gasket set

Safety

  • Starting air is stored at high pressure, typically to around 30 bar for this class - isolate and vent before opening any part of the air path
  • Discharge line carbon deposits combined with oil carryover are a recognised fire/explosion risk in starting air systems if cooling and drainage are neglected
  • Relief valves protecting each stage must be verified functional - an overpressure event in a reciprocating compressor can rupture the cylinder or piping
  • Rotating drive components (belts, coupling) must be guarded during operation

Class survey

Starting air compressors and their relief valves fall within the scope of class survey of the starting air system; surveyors typically check relief valve test records, receiver condition and the automatic drain/interlock arrangement rather than compressor-internal wear parts directly.

Spares

Replacement Parts

Spare parts notes

Tamrotor (part of Gardner Denver / Ingersoll Rand group). Service in Finland, Singapore, Hamburg. Keep onboard: valve sets, V-belts, piston rings. Lead time: 2-4 weeks.

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