Class 10 LEXION 780 combine debuts with new patented CLAAS technology


OMAHA, Neb.– Visitors to the Ag Connect Conference were among the first to witness a special unveiling of the new LEXION 780 combine from CLAAS. The state-of-the-art combine is headlined by greater functionality, featuring a DYNAMIC COOLING system, 4-link rear axle and newly automated CEMOS technology.

“This will be the top-end model, what we call Class 10 as the largest combines, capable of operating with those large headers. It is the next step in LEXION combines,” said Jeff Gray, product coordinator of CLAAS of North America.

The trademark of the new LEXION 780 combine is a higher horsepower motor that is cooled via the DYNAMIC COOLING system. Along with the engine upgrades is a fuel efficient, 16L Mercedes-Benz diesel engine that complies with Tier 4i emission standards.

“The new engine on the LEXION 780 produces 543 horsepower with a bulge that increases total power output to 590 horsepower,” Gray said. “To support the higher horsepower engine, CLAAS integrated a new cooling system, which we call DYNAMIC COOLING. It enhances cooling for larger engines with larger horsepower demands.”

Placed horizontally behind the engine, the 63-inch rotating screen is able to consistently draw in clean air from the top of the combine, as opposed to being placed on the sides. A variable fan drive helps conserve power by adjusting speed automatically, depending on the level of cooling needed.

The cooling system also maintains a barrier against dust and debris. Air that is expelled from the motor through side cooling vents creates a “curtain effect”; this method of dispersing air prevents debris buildup on the radiator.

Suspension and stability were also enhanced with a 4-link rear axle. The patented CLAAS design allows for increased mobility with tires up to 67.3 inches high. The 4-link axle also features lateral movement and allows for more flexibility and a smaller turning radius.

“The design is unique to CLAAS and an industry exclusive. It not only enables the rear axle to pivot, but also gives a swing motion for enhanced turning capability and efficiency ... You get more oscillation and a tighter, more efficient turning radius,” Gray said.

In line with the automation and ease of use of the LEXION 780, the all-wheel drive POWER TRAC is engaged by the press of a button. The powerful yet fuel efficient drive capitalizes on a second hydrostatic drive on the rear axle; additional traction can be employed and intelligent control technology can be engaged while on the move.

CLAAS has also focused on improving TELEMATICS and utilizing sensors and monitors to optimize performance in the field. CEMOS (Claas Electronic Machine Optimization System) technology, a dialogue-based system that allows the operator to establish the correct situation settings, has become automated in the new LEXION 780 series. CEMOS has reached a second stage and is now self-setting for the various situations an operator may encounter.

A new header drive also provides for improved fuel conservation. The drive is capable of a constant output of 107 horsepower, and a variable output of up to 268 horsepower. Maximum power can be reached and the right drive can be attained for every application.

Another CLAAS patent is the pre-accelerator in the APS threshing system. Ensuring quality and protecting against overloading are pinnacle components of the system. A closed threshing drum facilitates crop flow and gentle handling within the combine. Parallel concave controls and dis-awning plates give the operator further control over threshing performance; the advanced control allows for protection from damaging objects during harvest.

A 29.2 foot auger adds to the unloading capacity of the LEXION 780. The 4XL grain auger is capable of an unloading rate of up to 3.8 bushels per second. Coupled with the new auger is the PROFI CAM, which is positioned to monitor the unloading process and residue management system performance.