Super-Conventional combine in cereals, grains, rice and other specialty crops with a rigid draper head designed specifically for New Holland combines.
The 840CD rigid draper head provides uniform crop flow and reliable performance and is available in cutting widths of 25, 30, 35, 40 and 45 feet. The 25- 30-, and 35-foot heads feature a single-span, plastic-tine pickup reel while 40- and 45-foot models use a dual-span reel with plastic tines. For harvesting rice, 25-foot single-span and 30- or 35-foot dual-span steel tine reel options are also available. An optional upper-cross auger is available for harvesting bushy crops such as peas or canola.
The 840CD head features the patented New Holland SynchroKnife™ drive, which was presented with an AE50 Award by the American Society of Agricultural and Biological Engineers (ASABE) as one of the most innovative product ideas to enter the market in 2011. This center knife-drive system revolutionizes the way a combine head cutterbar is driven. The double knife drive gearbox is driven by a single hydraulic motor and is mounted in the center of the head. This system works on the same basis as the two opposing knife drives used in larger heads, but eliminates the vibrations they can cause by continually keeping the opposing knifes perfectly synchronized. The new drive also eliminates complex drivelines, reducing maintenance needs and saving power while reducing end shield width to minimize run down of standing un-cut crop.
Variable-speed outer draper belts and fixed-speed twin 41.6-inch center draper belts deliver the crop smoothly to the floating 26-inch-diameter auger. The auger features five-inch flighting to handle heavy crop and feed it smoothly into the combine. A flat auger floor angle aids crop flow and the auger can be adjusted up and down, to match crop.
For ease in moving the head from field to field, an optional integrated low-speed transport system is available. The system uses wheels that fold down hydraulically from the combine cab with a hitch attached by hand so the header can be towed with the combine. A process that used to require two people, a trailer and a tow vehicle can now be handled by one person.