Wärtsilä RT-flex40 and RTA40

The Wärtsilä RT-flex40 and RTA40 low-speed marine diesel engines are tailor-made for the economical and reliable propulsion of many types of small and medium-sized commercial vessels. They are designed to give the best powers and speeds for a wide variety of ship types, such as handysize bulk carriers and product tankers, general cargo vessels, reefers, feeder container ships, and small LPG carriers.

Available with five to eight cylinders, the RT-flex40 and RTA40 cover a power range of 4550–9080 kW at 124–146 rpm.

In these applications, they offer clear, substantial benefits:

• Optimum power and speed with extended layout field for improved match to ship power/speed requirements
• Competitive first cost
• Lowest possible fuel consumption over the whole operating range
• Low cylinder oil feed rate
• Three years’ time between overhauls
• Low maintenance costs through reliability and durability
• Full compliance with IMO emissions control regulations