Do 3600rpm diesel generators last as long as 1800rpm gensets?
A. Generally the 1800rpm engine speed will last longer, use less fuel, and are slightly quieter than the 3600rpm units. Most small diesel portable generators in the 3 to 6kw class are air-cooled 3600rpm engines designed to keep the weight and cost down. ADG has designed a 3600rpm air-oil cooled Kubota diesel powered portable for severe duty applications that has an expected engine life of up to 9,000 hours. This unit has been engineered to provide reliable power for construction, military, rental industry, and government applications. Our 3.5kw liquid-cooled portable generator systems are rated for 10,000 to 15,000 hour service for a wide variety of battery charging, remote site pumps, RV and other mobile use, and a number of other critical function applications. Kubota has developed the GL7000 / 7kw and GL11000 / 10kw series quiet enclosed contractor-residential rated gensets using liquid-cooled 3600rpm engines to keep the weight and price affordable with great success. These engines
