Wärtsilä Equipment
Wärtsilä Marine Diesel Engines
Wärtsilä medium-speed marine diesel engine portfolio (W20, W25, W31, W32, W46F) from 0.7 to 20 MW for main propulsion and auxiliary power; IMO Tier III via Wärtsilä NOx Reducer SCR.
Description
Wärtsilä marine diesel engines are medium-speed engines for main propulsion and onboard power, designed for fuel flexibility and efficiency across real operating loads.
Key facts
- Power range from 0.7 MW to 20 MW
- Suitable for diesel-mechanical, diesel-electric and hybrid installations
- IMO Tier III compliance in diesel operation via SCR (Wärtsilä NOx Reducer, NOR)
Engine types
- Wärtsilä 20 – compact, lightweight engine with a long service record; auxiliary power (e.g. PCTC car carriers) and main propulsion for tugs and smaller OSVs
- Wärtsilä 25 – compact, modern engine covering a broad power range; propulsion and auxiliary power for short-sea merchants, PSVs and LNG bunker vessels, including hybrid propulsion
- Wärtsilä 31 – best fuel economy in its class and low noise; main propulsion for cruise ships, ferries, fishing vessels and merchants
- Wärtsilä 32 – robust engine for continuous heavy-duty operation; drill rigs, dredgers and tugs
- Wärtsilä 46F – high power density and wide fuel range; main propulsion for large ferries and ro-ro vessels
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Featured products
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Component
Low Inertia High Torque Clutch
Pneumatic low inertia high torque (LIHT) clutch with pancake-style airtube for the highest torque-to-size ratio in the WPT range; suited to marine winches, steel shears and metal forming.
Component
Bolts, Nuts and Studs Made to Order
Special bolts, nuts and studs made to order in any metal, alloy and class, including turbine bolts and Duplex / Super Duplex stud bolts.
Consumable
Regal® R&O
Premium rust- and oxidation-inhibited turbine oil for gas, steam and hydroelectric turbines, listed for separators and purifiers on commercial vessels.
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