Featuring several developments to improve crop flow, reduce weight and improve folding, Claas has introduced two new maize headers to its line-up of front attachments for its Jaguar self-propelled foragers.
Sitting between the current 450 and 900 models, the new Orbis 600 SD (six metre working width) and Orbis 750 (7.5m working width) headers stick with Claas’ proven design using a combination of small and large discs.
Both headers feature large discs fitted in the central area, while the Orbis 600 SD’s outer units have two small discs, and the 750 is equipped with a combination of a large outer disc and a small inner disc. As a result, both models see crop follow a V formation, said to be better able at handling varying yields of maize.
Newly designed fingers ahead of the knives provide fewer crop losses during collection, and help lift laid maize. They can also be removed when not required, and the new design also adds strength to the fingers which helps in weedy conditions, claims Claas, particularly helpful when reversing the header. In addition, the header’s knives have been re-profiled with a new crescent-shape, improving cutting performance, it says.
The central crop feeding tower rotors have also been re-positioned to improve crop flow; angled forward to aid crop feeding and moved further apart increasing the feed channel width to allow crop to be fed into the full width of the feed rollers and chopping cylinder.
Augers on the side of the headers have also been redesigned, now hydraulically driven, to help feed the crop into the header, especially when the crop is laid over or flat, says Claas.
Rather than crop being presented to the bottom/front feed roller, a new roller pendulum frame concept has lifted the crop flow to the centre of the forager’s feed rollers, said to improve crop flow, even when the header is at full lateral tilt.
Depending on field conditions, the mounting angle of the pendulum frame can be set to two different positions. This is said to help in wet conditions, with cutting angle maintained despite the forager’s front wheels sinking.
Enabling shorter stubble heights, the new frame also allows a shallower cutting angle, and a standard automatic leveling system is fitted as standard to help follow contours.
Newly designed, modular T-panels (pictured) support the drive train and the discs. In combination with the new frame they enable a low and even cut without dirt sticking, says the manufacturer.
Designed to reduce folding time, both models have been equipped with a new folding concept.
On the Orbis 600 SD, the side units fold equally to the centre while those of the 750 overlap each other symmetrically. Better views are also afforded, says Claas, and both models have a transport width of three metres.
A two-speed gearbox is used to adjust the overall speed of the headers while a three-speed gearbox controlling the feed drums allows crop flow to be optimised. An automatic function for Claas’ variable front attachment drive, available on Jaguar 900s (type 498s), allows the crop flow to be adjusted from the cab.
Maintenance-wise, header oil change intervals have been increased to 2,500 hours.