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Machinery news: New Holland updates its CX straw walker combines

With the prevalence of greener crops being harvested throughout the UK and Europe, New Holland has made several modifications to its CX7 and CX8 straw walker range of combines, with the aim of boosting output and machine durability.

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Machinery news: New Holland updates its CX straw walker combines

Inside the six-walker CX machines there is now the option to spec a staggered rasp bar main threshing drum, which replaces the 750mm one found in the machines at present.

 

Instead of featuring 10 rasp bars running across the width of the drum, the rasp bars are now arranged in four banks, with eight bars per bank, positioned around the circumference of the drum.

 

The company says this arrangement, which is similar to a chopping cylinder in its FR forage harvesters, reduces shock loads produced as the drum engages with the crop, produces a more even crop flow and is quieter in operation.

 

It also reckons a 10 per cent increase in throughput can be expected in barley and oilseed rape.

 

At the front, the feed elevator has been beefed up, with heavy duty chains and 15mm added to the diameter of the top shaft.

 

Slat timing has also been changed to optimise crop flow.

 

Saving down time and aiding operator convenience the concave beneath the rotary separator can now be changed form the cab. Via an actuator, 20 positions can be chosen to maintain straw quality.

 

Many of the new additions have been lifted from the company’s CR rotary combines, including updates to the firm’s Intellicruise system, using the Intellisense programme.

 

The ease of use and intuitiveness of the system has also been enhanced, says the manufacturer, using the same interface as the CR.


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Sensors

 

The first indication of load is taken directly from the belt tension, driving the header.

 

Sensors in the engine, plus loss monitors contribute to regulating forward speed or engine output, and unlike in previous generations where one sensor was prioritised, the company says each element of the system now works together.

 

However, for different crops, different driving styles can be adopted, running to engine load in OSR and losses in cereals, for example.

 

Also being offered as an option, which the company thinks will become increasingly important in the coming years with the need to hit specifications with mills to ensure maximum returns, is the NIR sensor.

 

Already in use on combines in Australia, plus the company’s forage harvesters, it says measuring grain for protein content onboard the combine can speed up logistics and storing options, with the ability then to blend different varieties to hit spec.

 

It can also measure moisture more accurately.

 

A CR-style chaff spreader has also been introduced, said to give better throwing distance of chaff, for six-walker machines.

 

Using a turbine-style arrangement to generate air speed, spreading the full width of the header is achievable, with speed compensation for cross winds.

Glare

 

In the cab, not much has changed, apart from the cab interior is now a dark blue colour, instead of the light grey of old.

 

This is said to reduce glare on the windscreen when harvesting at night and should also be easier to keep clean.

 

An 8.5-metre Varifeed header is also now an option, said to suit 8m CTF setups.

 

In line with emissions regulations, all models within the range are now Stage 5 compliant.

 

The Cursor 9 engine used from FPT, tops out at 460hp in the CX8.90 and uses SCR and a modification to the oxidising catalyst to curb emissions.

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