Yanmar Celebrates 30 Years Of Zero Tail Swing ViO Excavators Working Safely In Tight Locations

December 13, 2023 • Yanmar
ViO17 Yanmar compact excavator
ViO17 Yanmar's Compact Excavator

With the launch of the ViO series in 1993 Yanmar Compact Equipment popularized the zero tail swing excavator concept – revolutionizing the ability to work safely in confined locations.

The launch 30 years ago of the Yanmar CE ViO range of compact excavators caused a sensation. Unlike other excavators of its kind at the time, the ViO at no stage of its rotation did the rear of the cab/superstructure extend beyond its tracks. This meant that the machines could operate in the tightest of spaces without fear of a rear collision with nearby buildings, vehicles – or people. The concept was embraced by the global industry and soon displaced as much as 70% of the standard models on worksites.

Although zero tail swing excavators are now a dominant part of the compact equipment market – the ViO is still leading the way 30 years on. Collectively, many thousands of collisions and accidents have been avoided, and work in the tightest of spots been made possible – all thanks to the launch of Yanmar CE’s ViO range.

Defying the laws of physics

The zero tail swing concept is much cleverer than just shrinking the size of the superstructure. In traditional excavators having a protruding counterweight at the rear of the excavator is useful in balancing loads at the front, when lifting or digging, for example. But with this removed, the engineers at Yanmar CE needed to create similar counterweight forces by other means, while still maintaining impressive lift capacity.

The ViO is incredible versatile, and able to work in the tightest and narrowest of jobsites.

Now in its 7th generation, the range has expanded and is still going strong. Recently the designed-for-Japan ViO80-7 was declared a winner in this year’s prestigious Japan Institute of Design Promotion’s 2023 Good Design Award.

The ViO zero tail swing concept has consistently developed over the last 30 years.

The ViO17 (pictured top) is a good example of the current breed. Neither the counterweight, nor the front part of the upper frame extend beyond the track width. This gives the 4,023-pound (1.8-metric ton) model an extremely tight turning radius. And yet, thanks to its 4-foot, 2-inch (1,280-mm wide) undercarriage, large counterweight and good weight distribution, it equals or surpasses conventional machines, as well as having great lifting capabilities.

To commemorate the ViO’s 30th anniversary a short video has been produced. Watch it by clicking >>here<<.



Most recent articles:

Yanmar team stands in front of the first 100vs to roll of the production line
July 16, 2024

Yanmar CE Rolls First Compact Track Loaders Off the Line 

Yanmar Compact Equipment rolls its first compact track loader production models, the TL100VS, off the line for the North American market. This expansion to Yanmar’s compact equipment offering is the culmination of four years of extensive research and development following the company’s acquisition of a U.S. manufacturing facility and engineering team focused on compact track loaders.

Yanmar V7 wheel loader
July 16, 2024

Yanmar to Return to The ARA Show, Showcase New Product Lineup

Yanmar Compact Equipment will return to The ARA Show in 2024 with a new lineup of equipment following an absence in 2023. The company will make the tradeshow debut of the brand new V7 wheel loader for North America, as well as feature its latest product lineup.

V7 compact wheel loader
July 16, 2024

Yanmar’s New V7 Compact Wheel Loader Features Premium Capabilities and Speed

Yanmar Compact Equipment introduces V7 compact wheel loader to North American market. Learn more about Yanmar’s new V7 compact wheel loader!