New Holland has recently launched the CH7.70 combine – which introduces its new Crossover Harvesting concept that melds twin rotor separation technology with the brand’s proven conventional threshing technology.

CNH hopes this mix will set a new benchmark for it for mid-range combines, especially in delivering outstanding grain and straw quality.

It also gets a new fuel-efficient engine with patented HI-eSCR 2 technology for Stage V compliance, which is said to deliver high productivity, but with low operating costs.

Lars Skjoldager Sørensen, crop harvesting specialist for CNH, commented: “We designed the CH7.70 for professional arable farmers and contractors looking for a combine that delivers consistent, high performance in all conditions together with low cost of ownership.

"The new combine brings to our customers all the benefits of 45 years of twin rotor separation excellence, combined with our best threshing technology – best-in-class productivity, top grain and straw quality, crop-to-crop versatility and reliability with low operating costs. This unique concept heralds the new era of 'Crossover Harvesting' by New Holland.”

The result is a new segment in New Holland’s wide offering, falling as it does between the mid-range conventional and flagship rotary models.

This new technology can deliver up to 25% higher throughput than a conventional combine in this segment, said CNH. The two-drum threshing system features a 600mm diameter drum – the largest in its segment – with reinforced, heavy-duty design to deliver outstanding threshing performance.

The large drum, combined with a user-friendly sectional concave, enables a fast switch between different crops, in less than 20 minutes.

Drum speed is controlled from the cab by a new heavy-duty hydraulic drum variator. This means operator can ensure the speed is matched to the crop and field conditions.

The threshing system is combined with proven New Holland Opti-Thresh system, which adapts to crop conditions and maturity simply by repositioning the rear part of the concave – no tools are needed. When the hinged top section is moved away from the drum, the rubbing action is gentler, thus improving straw quality.

The specially designed 21-inch, 3.45m-long Twin Rotor is claimed to provide the largest separation area in its segment, at some 2.9 m2, and requires minimal changes to the settings when switching between crops.

There are a range of Varifeed headers available. These range up to 9.15m, including an 8.53m Varifeed version specifically developed for this range. The front face of the feeder housing can be mechanically adjusted to ensure perfect alignment with the header, thereby optimising the angle for each different header to deliver smoother crop flow.

The cleaning capacity of the CH7.70 is matched to its high threshing and separation throughput, using New Holland's Triple-Clean cascade cleaning system. this is said to boost cleaning capacity by up to 15% by using an extra cascade in the centre of the grain pan.

The double flight cross auger, which transfers grain to the elevator faster, also helps boost throughput. The proven SmartSieve system, which automatically compensates for side slopes up to 25%, maintains balance for uniform cleaning across undulating land.

The system also calibrates sieve action based on fan speed and kernel size to determine the optimal throwing angle. Also, the award-winning Opti-Fan system automatically compensates for fluctuating grain speed across the cleaning shoe when the machine is working on slopes.

It reduces fan speed when travelling uphill so no grain is lost out the back of the combine, and increases it when moving downhill to prevent clogging of the shoe.

For really hilly conditions, a Laterale version, which uses an automatic levelling system, provides transversal slope correction of up to 18% on both sides. This in addition to the standard Triple-Clean and self-levelling Smart Sieve systems.

Providing the power is the proven Cursor 9 engine that develops 374hp – 34hp more than the CX6.90. It complies with Stage V emissions standards with the patented HI-eSCR 2 technology developed by FPT Industrial.

Designed for easy maintenance – there ate only four greasing points making daily maintenance even quicker – it has a large service door on top of the straw hood door for easy access.

There's a standard three-year extended warranty (1200 engine hours) covering the engine, driveline and after-treatment system, plus 600-hour service intervals, to further contribute to the combine’s low operating costs.