John Deere’s 70 series represents a 15 per cent efficiency boost over the previous 60 series John Deere combines.
This efficiency boost comes from several areas of combine evolution. There is an updated feeder house, which features a front drum that is integrated with a floating mid-farm assembly, providing 20 per cent more clearance area. This is enhanced by the new DynaFlo II ICC (Increased Cleaning Capacity), which boosts the 70 series cleaning capacity by 15 per cent. The fan speed has been boosted 12 per cent and the air movement has been improved with a larger chaffer area and redesigned grain pan.
The new bullet rotor profile provides 35 per cent more clearance at the front threshing area of the rotor so material flows through faster and smoother boosting efficiency. Then 70 series combines also have a high unloading rate system of 3.3 bushels per second, an improvement over standard systems.
