increase font size
The Yanmar YT4/5A Series robot tractors rolled off the production line and on to Japanese dealer yards in April.
While numerous tractor manufacturers have shown autonomous concepts, it looks like Yanmar have taken the winner’s sash for getting to a retail position first.
The Yanmar YT4/5A Series robot tractors rolled off the production line and on to Japanese dealer yards in April.
However, the company is taking each-way bets, as the tractors have still retained a full cabin – allowing them to be operated in a full or partially autonomous mode. Additionally, there is an option for dual working in the same paddock, with one unit under driver control and an autonomous unit running nearby.
The Yanmar autonomous tractor range will include four models – the YT488A, YT498A, YT4104A and YT5113A. These are all four-cylinder common rail diesels, pushing out 88, 98, 104 and 113hp maximum output at 2500rpm. A three-speed hydromechanical transmission offers 0.15 to 33.0 km/h in manual mode, or 0.5 to 10km/h if run autonomously.
Under development since 2015, the move to the dealer showroom has come about due to a breakthrough with the tractor’s communication signal. Previously, like other manufacturers, the Yanmar robot tractor needed a ground base station for correction signals, along with signals from the GNSS satellite for accuracy.
The new delivery system receives a multifrequency signal, allowing the tractor to receive local reference point positioning data to determine its position through a VRS (Virtual Reference Station). This means it is no longer necessary to use a base station and the system can be used anywhere a mobile signal is available.
The new delivery system receives a multifrequency signal, allowing the tractor to receive local reference point positioning data to determine its position through a VRS (Virtual Reference Station). This means it is no longer necessary to use a base station and the system can be used anywhere a mobile signal is available.
In practice, a multifrequency antenna receives signals at three different frequencies from the GNSS satellite, allowing safe operation – even if one of those frequencies is interrupted. There is also the additional benefit of a 75% reduction in positioning time, meaning the tractor can start work as soon as it arrives in the paddock.
The only major stumbling block seems to be the cost, with entry into the robotic arena – depending on model – sitting at $US105,000 to $US162,000 (NZ 144,000 to $222,00) plus taxes.
The arrival of new F8 and F9 designations for its 8000 and 9000 series forage harvesters, signals a swag of upgrades from John Deere, highlighted by topping the 1000hp mark for the first time.
Waikato-Bay of Plenty farmer Hugh Jackson recently secured this year’s FMG Young Farmer of the Year title in Invercargill.
Ashburton-based Carrfields has signed an agreement with Manitou to take over the distribution and retail rights for Manitou Agricultural Equipment covering the lower North Island and the South Island, effective August 1, 2025.
With June ending and following the most upbeat National Fieldays for several years, tractor dealers are reporting a lift in sales.
Samasz distributor FarmShop has introduced the new XDF Series Front Mowers, said to be refined for local conditions and to improve cutting precision and wear resistance.
Dawn Meats is set to increase its proposed investment in Alliance Group by up to $25 million following stronger than forecast year-end results by Alliance.
A day after the ouster of PGG Wrightson’s chair and his deputy, the listed rural trader’s board has appointed John Nichol as the new independent chair.
Tributes are pouring in from across the political divide for former Prime Minister Jim Bolger who passed away, aged 90.
The iconic services building at National Fieldays' Mystery Creek site will be demolished to make way for a "contemporary replacement that better serves the needs of both the community and event organisers," says board chair Jenni Vernon.
Agri advisor Perrin Ag says its graduate recruitment programme continues to bring new talent into the agricultural sector.
Entries are open for the 2026 New Zealand Dairy Industry Awards (NZDIA).
OPINION: Ageing lefty Chris Trotter reckons that the decision to delay recognition of Palestinian statehood is more than just a fit…
OPINION: A mate of yours truly recently met someone at a BBQ who works at a big consulting firm who spent…
