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The latest Axial-Flow combines ensure improved productivity, economy and easy operation, claims manufacturer Case IH.
The new generation of Axial-Flow combines were launched at Agritechnica 2011.
Divided into two ranges, the Axial-Flow 130 series and 230 series machines have been updated throughout. Each range consists of three models, with each model featuring a host of innovations and improved features.
Case IH says threshing performance, across all crops and operating conditions, has come under close scrutiny from its engineers. The manufacturer adds that the technical heart of the two series remains the familiar Axial-Flow rotor developed, but the technology has been updated and adapted to meet evolving harvesting conditions.
A new Small Tube Rotor features optimised geometry for the 130 series, which Case IH believes the new shape means sensitivity of the standard settings has been reduced for all crops, while threshing performance in specialty crops is boosted without affecting straw quality. At the same time, the reputation Axial-Flow combines have earned for low levels of cracked grains remains unlikely to be challenged.
The new models also benefit from the introduction of the Case IH's EfficientPower concept to the combine sector. This new advanced engine technology provides possible fuel savings of up to 10% when compared with conventional engine technology.
The 130 series combines are equipped with engines from FPT (Fiat Power Train). A 6.7 litre FPT engine is fitted to the 5130, producing virtually the same output as the power plant in the previous model, while the 6130 and 7130 combines use a 9.0 litre FPT engine. Nominal power and maximum power ratings have been increased on both of these combines, the 6130 developing a maximum 387hp and the 7130 a maximum 415hp.
Meanwhile, Case IH says the 230 series is its new flagship class combine. These consist of the Axial-Flow 7230, 8230 and 9230 models, with maximum power of up to 571hp and header widths from 7.6-10.7m. The 7230 now features the same size cleaning area as the 8230 combine, with self-levelling as standard.
Grain tanks on the 230 series are among the largest in their class – as big as 12,330 litres on the 8230 and 9230 – courtesy of hydraulic folding extensions. The result is longer emptying intervals and greater productivity.
Case IH says for those looking to bale behind their combine, straw and chaff management have been optimised by fitting a new straw chute, ensuring a symmetrical and airy swath, even with a crosswind. Distribution of chopped material can be monitored using a standard rear-view video camera, and adjusted according to changing wind direction or variations in terrain.
A compressed air system equipped with five connections in key areas, such as the engine compartment, battery cabinet, grain tank and on the cab, is now available for Case IH combines. A 6m self-retracting hose allows all connection points to be easily reached. The compressed air system is supplied with a 60 litre pressure vessel.
Settings for the new Axial-Flow rotor are adjustable at the touch of a button for varying harvest conditions and different crops. Auto-Crop Setting (ACS) technology means rotor speed is infinitely variable from 220-1,200rpm, while sieve clearance and threshing gap are also controlled automatically, depending on the crop type selected.
Case IH believes the lightweight threshing and separation concaves, which are accessible and easy to change, mean the 30 series combines are capable in every kind of crop.
It adds that one component retained in the new series of Axial-Flows is the Power-Plus transmission, which means that the rotor, conveyor and header are all driven without belts. The continuously variable CVT transmission ensures gradual acceleration without peak loading, smooth speed changes and low maintenance.
Another advantage is that, in the event of a blockage, the driver can expand the rotor concaves via a button in the cab and reverse the axial rotor, with the ability to repeat the process until the blockage is cleared.
The cleaning system on the 7230 combine features the same sieve area as the larger 8230 and 9230 combines. Effective width has been extended to 1.57m, and the power of the Cross-Flow blower has been increased. The self-levelling system remains standard.
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