THE new CLAAS ORBIS 600 SD and ORBIS 750 maize front attachments, available in working widths of 6.0 m and 7.5 m, deliver optimal crop flow, high efficiency and functional reliability. CLAAS Harvest Centre Product Manager – CLAAS JAGUAR, Luke Wheeler, says the new fronts are based on the proven combination of large and small discs.
“Both fronts have large discs fitted in the central area for smooth crop flow and easy reversing,” he says. “The ORBIS 600 SD has two small discs on the outside, while the ORBIS 750 has a large outside disc in combination with a small inside disc.” The new models feature a new folding system for rapid set-up and transport. On the ORBIS 600 SD, the side units fold equally to the centre, while the panels on the ORBIS 750 overlap each other symmetrically. “The new folding system means both front attachments are ready for use or transport in a matter of seconds,” Luke says.
“With a maximum transport width of three metres, they can be easily transported by road. “The compact folding system ensures optimal visibility, while the integrated vibration damping system allows smooth, comfortable road speeds of up to 40 km/h. “Once the optional transport system has been activated, the two wheels travelling on the road bear the main load of the front attachment in order to comply with the permissible axle loads of the JAGUAR.”
Both models have the proven ‘V-shaped’ crop flow for optimal reliability, even in variable harvesting conditions. The newly-designed fingers ahead of the knives reduce crop loss and feature points which can be removed for harvesting laid maize. The knives with their new crescent-shaped blade deliver top cutting quality in all crops. The new tilting frame concept – standard for the ORBIS 750 and optional for the ORBIS 600 SD model – ensures a centred feed of the crop to the JAGUAR's pre-compression rollers.
“This robust component has been optimised to handle the weight of the front attachment and the forces generated by it,” Luke says. “Depending on the field conditions, the mounting angle of the tilting frame can be set to two different positions. “In wet conditions, the cutting angle of the front attachment can be maintained even if the front wheels of the forage harvester sink into the soil. “AUTO CONTOUR provides active control of the lateral compensation and ensures a precise stubble height across the entire working width.”
“With a maximum transport width of three metres, they can be easily transported by road".
Newly-designed, modular T-panels support the drive train and the discs. “These panels are press-hardened and rounded to protect the transmission elements against wear and structural loads,” Luke says. “In combination with the new frame design they enable a low and even cut without dirt adhesion.” The drive concept is matched perfectly to both the JAGUAR 900 and 800 series to ensure perfect chop quality and crop flow.
“A two-speed gearbox governs the speed of the front attachments, while a three-speed gearbox governs speed of the feed drums,” Luke says. “An automatic function for the variable front attachment drive allows the crop flow to be optimised from the cab. “The low number of gear units and the effective power transmission keep the power requirements low and maximise efficiency. “Performance aside, these improvements have extended the oil change intervals to 2,500 hours or five years.”
ORBIS front are equipped with a communication module that transmits data from the front attachment to the forage harvester and saves corresponding settings on the forage harvester. “Even after a change of front attachment, the settings are not lost, a feature which saves time and avoids operating errors,” Luke says.
New CLAAS ORBIS 600 SD and ORBIS 750 maize front attachments will be available from spring 2019 onwards.