New Holland is introducing a 12.5m Varifeed header option for users of its largest CR combine, which was previously offered with a maximum header width of 10.7m.
The new header width has been developed because many large farms now utilise 36m tram lines. Made at the New Holland plant at Plock, the newVarifeed header will be launched at Agritechnica 2013.
The grain header is based on a very robust welded frame design. The adjustment range for the blade in longitudinal direction is 575mm, and adjustment is performed electrohydraulically from the cab. This means that the header can be adjusted perfectly to suit all harvesting conditions and is easily adapted to use with separating knives for rapeseed threshing (optional).
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| There are four Autofloat sensing pads across the new 12.5m wide Varifeed header. |
The header is equipped with four wide Autofloat sensing pads that enable its height and inclination to adjust automatically.
Nonetheless, a working width of 12.5m is a genuine challenge, and not just for the chassis and the overall design. This working width also constitutes a challenge for knives, auger, reels and their drive units.
The header is driven by two drive shafts. A wobble box on each end of the head provides power to the dual sickles. Two robust knife drives with torsion dampers, one on the left and one on the right, both driven by belts with an automatic tensioning fixture, move the harvester knives, which have a slight overlap at midpoint. The two-piece auger is supported in the center with a bearing. The augers are timed to provide supurb feeding.
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There are knife drives at both sides of the new 12.5m Varifeed header. |
To ensure a continuous feed and excellent visibility of the header, New Holland design engineers chose to use a single piece reel that is driven hydraulically and the speed is controlled automatically.
The 12.5m grain header will be available to order from Agritechnica 2013 onward, and will be offered on the CR9090 with Dynamic Feed Roll, which will make it one of the world’s most powerful units for grain harvesting operations.
For more information visit: www.newholland.com.
