JCB unveil new 457 wheel loader
JCB have introduced a new flagship wheel loader that offers more power, increased torque and greater productivity. The company – which has been producing wheel loaders for more than 40 years – has launched the new JCB 457 to replace the existing 456 model.
At the heart of the machine is a Stage IIIB-compliant 8.9-litre Cummins engine which incorporates a high-pressure common-rail fuel-injection system; exhaust gas recirculation; a diesel oxidation catalyst; a diesel particulate filter; and a variable- geometry turbocharger, which delivers an improved machine response at low rev/min.
The JCB 457 loader delivers around 250hp (186kW) – 16% more than the outgoing 456 model – and 1,085Nm of torque, an increase of 18% over the 456. The 457 loader also features a new economy mode that reduces engine output for lighter duties, delivering fuel savings of up to 6%. The machine also incorporates a low idle feature and engine shutdown mode which initiates after a pre-determined idle period to save fuel.
A four-speed automatic powershift transmission comes as standard but a five-speed version is also available. The lock-up torque converter on the five-speed transmission activates in gears 2-5, reducing losses from the transmission and increasing productivity during load-and-carry work. The 457 wheel also comes with a intelligent clutch cut-off system as standard for both four-speed and five-speed transmissions, making it suitable for truck loading and tight-corner manoeuvres.
The ZF automatic differential lock axles are available in three options: standard open differential; limited-slip differential; or automatic differential lock on the front axle only. The automatic option locks the differential when required – without the operator needing to activate the system, providing increased traction and less slippage.
Weighing 310kg more than the 456, the JCB 457 also offers more loading capability. The tipping load has increased by 3.3%, which means that an extra quarter of a tonne can be carried in the bucket.
Inside the cab, a new full-colour LCD monitor and revised instrument cluster gives the operator a clear view of important machine functions. The menu system is intuitive and provides the driver with real-time fuel consumption and cycle data.
