TWO new tractors of more than 200hp have been added to the John Deere 6R Series and were shown on the company’s stand at Agritechnica.

Designed for contractors and larger arable farmers, the 6230R and 6250R feature six cylinder engines nominally producing 230 and 250hp, respectively. But, thanks to an engine boost of 50hp with intelligent power management (IPM), the flagship 6250R tractor can provide up to 300hp when required.

With a light vehicle weight of 9.3 tonnes, the 6250R delivers more power than any other tractor in this weight class, along with an unrivalled power density of 31kg/hp, pointed out John Deere. But, a high maximum permissible weight of 15 tonnes allows a 5.7 tonne payload, which means the tractor is able to transport heavier loads.

Both are powered by a 6.8-litre PowerTech PSS engine with dual turbochargers and advanced DPF and SCR technology, which responds very quickly to changing loads while consuming less fuel and meeting demanding Stage IV emission standards.

An upgraded AutoPowr transmission delivers maximum efficiency, with 100% mechanical power available at 3.5km/h for heavy draft operations, 11km/h for light draft work, 22.5km/h for heavy transport and 47.2km/h for light transport duties.

Once running at maximum road speed, engine rpm automatically drops and 50km/h is maintained at 1630rpm and 40km/h at 1300rpm, which results in lower fuel consumption on the road.