New Holland has just launched a new hybrid twin-rotor combine. The CH7.70 creates a new segment between mid-range conventional CX combines and flagship rotary CR machines.

The Crossover Harvesting concept sits as a hybrid machine, integrating twin-rotor and conventional threshing technologies. Up to 25% higher throughput is claimed in comparison to conventional machines in this segment. The CH7.70 is powered by a 374hp Cursor 9 Stage V engine.

The new model features a two-drum threshing system with a reinforced, heavy-duty 600mm diameter drum. The large drum and sectional concave allows for a quick crop changeover in less than 20 minutes, the company says.

Drum speed is controlled using a heavy-duty hydraulic variator. The threshing system also features New Holland’s Opti-Thresh system which adapts to crop conditions by repositioning the rear part of the concave.

Building on 45 years of twin-rotor separation, the 21in diameter 3.45m long rotors provide 2.9m2 of separation. Cleaning on the CH7.70 is provided by the Triple-Clean cascaded cleaning system which claims an increased capacity of up to 15%. Grain is transferred to the elevator using a double-flight cross auger.

The SmartSieve system automatically compensates for side slopes up to 25% for uniform cleaning. The Opti-Fan system automatically compensates for fluctuating grain speed across the cleaning shoe when the machine is working on slopes. The Laterale version provides transversal slope correction of up to 18% on both sides.

A range of Varifeed headers are available up to 9.15m, including a brand new 8.53m Varifeed developed specifically for the Crossover range.