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JCB’s new 457S loader is its most powerful and heaviest machine to date.
JCB has upped the ante in the agricultural loading shovel arena with the launch of the new 457S.
The loader is its most powerful and heaviest machine to date, topping the scales at 20 tonnes and offering a payload capacity of over 6 tonnes. The machine is likely to appeal to contractors who need to shift large volumes of grass or maize silage in the race to keep up with high output self-propelled forage harvesters.
The development, a derivative of the industrial-focused 457 machine, has seen the inclusion of a new rear chassis and counterweight – alongside changes to the transmission, axles and wheels.
Power is provided by a 6.7 litre, six-cylinder Cummins engine that delivers a peak output of 282hp power and 1,200Nm torque. It can work in economy mode, where output is restricted to 224hp, and also features an automated engine shut-down function that kicks in after an extended idle period.
With both functions aimed at fuel savings, JCB reports that during clamp work, consumption is typically around 14 litres/hour – similar to the existing 435S.
The transmission takes the form of a new powershift unit supplied by ZF. It comes with manual/auto modes, 6 forward and 3 reverse speeds. The loader also features a torque converter lock-up function to achieve a mechanical drive for increased traction and pushing power.
Its heavy-duty, 20-stud axles are equipped with limited slip or auto locking differentials and shod on 710-75R32 Trelleborg or 800-65R32 Michelin MegaXbib tyres, both keeping overall width under 3 metres.
Standard ‘high torque’ loader arms offer a 4.3m lift height, although buyers can specify the high lift option that increases this to 4.8 metres. Optioning the machine to the Contractor Pro specification adds 360-degree LED lighting, cab carpet, a super deluxe half-leather seat, twin beacons and a stainless-steel exhaust stack.
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