Forest Machinery

Milestone 1,000th Volvo Penta engine powers Eco Log harvesters

Swedish OEM Eco Log helped put the very first Volvo Penta engine in a forestry application. A decade later, this Volvo Penta D8 Stage IV engine is still running and the 1,000th Volvo Penta-powered Eco Log machine has been delivered, exemplifying not only the durability and reliability of Volvo Penta industrial engines, but also the importance of partnerships with OEMs and customers.

The first and 1000th Eco Log machines powered by Volvo Penta.
The first and 1000th Eco Log machines powered by Volvo Penta.

Whenever a Volvo Penta engine is sold, a partnership begins. Almost ten years ago, the first Eco Log 580E Harvester was fitted with the first Volvo Penta engine ever installed in a forestry application and sold to Swedish forestry specialists Nitta Rundvirke AB. In 2024, when Nitta Rundvirke ordered another harvester, the Eco Log 590G with the latest D8 EU Stage V Volvo Penta engine, the sale marked a new milestone in the companies’ long-standing relationship, as well as the delivery of the 1,000th Eco Log machine powered by Volvo Penta.

Frans Spetz is one of the co-owners of Nitta Rundvirke, located in western Sweden. Founded in 1965, the family-owned company operates in several industries, including transportation, excavation, and forestry. In addition to running his company, Frans conducts a lot of field tests.

Extensive testing in demanding work environments, combined with an ongoing dialogue on improvements, is essential for finding the best solutions. By working in close collaboration with customers, Volvo Penta develops products and services that meet ever-increasing demands in terms of productivity, cost-efficiency, connectivity, and sustainability. With Nitta Rundvirke, new engines and machines are tested in various forestry applications, in their proper work environment.

“As field testers, we are honest and straightforward throughout the development process,” says Frans. “There are other field testers that are just happy to try something new, without giving proper feedback or telling the manufacturer what they actually think. But we always do.”

Among the machines that the operators of Nitta Rundvirke work with, and have tested thoroughly, are those of Swedish OEM Eco Log, equipped with Volvo Penta industrial engines. Frans bought his first Eco Log 580E Harvester almost ten years ago, outfitted with the very first Volvo Penta engine ever installed in a forestry application. More than 11,000 work hours later, that D8 Stage IV engine is still running today, in the same harvester, with only routine maintenance since its installation.

Frans Spetz is a co-owner of family-owned company Nitta Rundvirke AB.
Frans Spetz is a co-owner of family-owned company Nitta Rundvirke AB.

Robust and reliable engines

When a forestry machine malfunctions in a remote location, the operator will often have to solve the issue on the spot. To keep costly downtime to a minimum, they need to know a lot about their machines and their engines.

Frans and his colleagues use their machines to their maximum capacity. Even so, the D8 engine has remained robust and reliable year after year.

"We had to change the water pump at some point,” Frans notes. “But that’s the kind of inevitable maintenance that comes from normal wear and tear."