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Position: Engine»Diesel Engine»Marine Engine

RT-flex 48T

Wartsila RT-flex48T low-speed marine diesel engine is custom-designed to provide economic and reliable propulsion for bulk carriers and oil tanker with load capacity from 2000 to 150000t.

The application ship include from small/handymax to Cape of Good Hope type and Suez type.

Cylinder Bore Stroke Rotating Speed R1 Mean Effective Pressure Piston Speed Fuel Oil
480mm 2000rmm 102-127rpm 19.0bar 8.5m/s 700cSt/50°
Rated Power, Dimensions and Weights
Number of Cylinders Output in kW at Length Weight
127rpm 102rpm
R1 R2 R3 R4
5 7275 5100 5825 5100 5314   171
6 8730 6120 6990 6120 6148   205
7 10185 7140   8155 7140 6982   225
8 11640 8160 6320 8160 7816   250
Dimension B C D E F   G
3170 1085 7334 3253 9030   1700
Automatic Fuel Consumption
Full Load
Stage Point R1 R2 R3 R4
Brake mean effective pressure   19 13.3 19 16.6
IMO Tier I RTA 169 161 169   165
IMO Tier II RTA 173 167 173   169
RT-flex Standard Adjustment 171 165   171   167
Part Load,% of R1 85 70 85 70   60
Variable Standard Standard Standard Delat Delat   Low-Load
IMO Tier II 167.8 167   167.1 165.5   164.5


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