Specialist crops such as wine and fruit or municipal work call for small, manoeuvrable tractors with powerful engines, which offer the driver a high level of comfort. Source: AFDJ eNews
The new series of the CLAAS NEXOS narrow-width tractor meets all these requirements.
As well as powerful engines, smaller dimensions and higher manoeuvrability, the new models feature many detailed practical solutions for front and rear-mounted implements, a new transmission and optimum cab comfort.
CLAAS presented the NEXOS for the first time at the EIMA exhibition in November in Bologna, Italy.
The new NEXOS generation includes 14 tractor models with different outputs and dimensions.
All the new models have a FPT 4-cylinder engine with high torque and extremely low vibration.
Engine output ranges from 75hp to 112hp, or up to 103hp in the NEXOS VE which is designed for use in particularly narrow vineyard rows.
In the top 250 VL and 250 F models with CLAAS POWER MANAGEMENT (CPM), the 103hp engine delivers a boost of up to 9hp during PTO and transport work and achieves a maximum torque of 440 Nm.
This makes the new NEXOS series approximately 10% more powerful than the previous series.
With electronic common rail injection, the NEXOS now has an engine speed memory as standard and a second engine speed memory is available as an option.
The engine speed can be adjusted accurately at the touch of a button.
For work with PTO-driven implements, this guarantees the right speed and high efficiency at any time.
In these new engines the service interval is also extended from 500 to 600 hours.
The dimensions of the NEXOS versions start from an external width of 1.00 m in the VE model for narrow rows, 1.26 m in the VL model for wider vineyard rows and widths from 1.45 m in the F model for orchard work.
Despite their compact dimensions, the different models all have engines which are equipped with the latest emission control technology such as a diesel particulate filter, diesel oxidation catalytic converter and external, cooled exhaust gas recirculation and satisfy the requirements of EU exhaust emissions level IIIB (comparable to Tier 4i).
All the new models have a characteristic indentation in front of and behind the front axle – the narrow waist which has already become an established feature of CLAAS large tractors.
It allows a higher steering lock angle, resulting in a much smaller turning radius.
The front overhang has been reduced by 88 mm and the wheelbase extended by 50 mm to make the tractors even more manoeuvrable and give maximum directional stability.
An optionally available automatic four-wheel drive system with steering angle sensor, which automatically switches off the four-wheel drive function from a certain steering lock angle, for example at the headland, contributes to the outstanding manoeuvrability.
The much lower transmission tunnel, optimised layout of the controls and digital colour display in the instrument panel afford more space and greater comfort for the driver.
In addition to the cable feed through at the rear, the new NEXOS now has a cable feed through to the front as standard so that front-mounted implements with their own control systems can be operated without opening the cab window.
The NEXOS F is also available in a platform version.
A new transmission is also available, in which a mechanical splitter with 24 forward and reverse gears is combined with the REVERSHIFT clutchless reverser.
It is operated by an electronically controlled, extremely low-wear multi-disc clutch. The five different transmissions available in the NEXOS also include the 24F /12R transmission with REVERSHIFT and TWINSHIFT (two powershift speeds) in the top-of-the range model.
Additional hydraulic connections for a spool valve and a free-flow return line directly on the front linkage are optionally available in all models.
As an alternative to the conventional PTO with 1000 rpm, an economy PTO with 540 ECO rpm for front-mounted implements is also available on the new NEXOS tractors. The new NEXOS is available with two different hydraulic outputs.
A hydraulic pump with a delivery rate of 60 l/min provides an efficient supply to all hydraulic consumers.
For demanding hydraulic drives and combined applications, a hydraulic system with a 60l/min pump for the spool valves and a 27 l/min pump for the rear linkage is available.
Four electronic spool valves can be also be installed to extend the range of spool valve capabilities.
They are operated by two electronic rocker switches and the ELECTROPILOT four-way control lever.
All the electronic valves come with flow control, and the rocker switches also have time control.
The permissible gross weight of the NEXOS can be restricted to 3.5 t so that it can be operated with a car driving licence in certain countries. This is particularly important in municipal work.
The new CLAAS NEXOS narrow-width tractors will be leaving the assembly line during 2017.