01 April 2019

JCB says its new 455ZX loader, powered by its award-winning Tier 2 six-cylinder Dieselmax 672 engine, delivers a fuel efficiency benefit of more than 15 per cent against leading competitors in early testing.

This level of fuel efficiency is attained thanks to the engine’s ability to produce maximum torque from low engine revs, combined with JCB’s EcoMAX lean burn combustion technology. The Dieselmax 672 delivers a powerful 221 hp (165 kW) with an incredible 1,000 Nm of torque from just 1,500 rpm, says a company spokesman.

The Dieselmax engine is equipped with high-capacity multi-stage fuel filtration, for reliable operation in territories where fuel quality cannot be guaranteed. The cooling pack is also laid out in a single stack, without the need for a complex multi-stack layout, making it easier to keep clean and to provide superior cooling in dusty conditions, the spokesman points out. In addition, the cooling fan speed is automatically adjusted as required, reducing noise and cutting fuel consumption further.

The 455ZX is equipped with the durable and responsive ZF 4WG190 automatic powershift transmission, with clutch cut-off as standard. This limits tractive effort in truck loading applications, allowing maximum engine power at low travel speeds for optimum loader arm speed and control, he says. Drive is transmitted through ZF axles with limited slip differentials, oil-immersed hydraulic disc brakes with wheel speed braking, providing reduced maintenance and improved braking performance.

Twin variable displacement piston pumps deliver a maximum hydraulic flow of 226 litres per minute, with load sensing delivering increased fuel efficiency and responsive distribution of hydraulic power. A single servo joystick controls the main hydraulic services, with transmission kick-down and disconnect buttons in the lever head, plus a directional control allowing the operator to work without having to take his hand off the controls.

Optional auxiliary hydraulic circuits are electronically actuated with proportional thumbwheel controls on top of the joystick. Loader detent controls for boom float, kick-out and return to dig reduce operator effort and fatigue and increase productivity in repetitive loading operations.

For operator comfort, the 455ZX uses a brand new ultra-modern cab with a low internal noise level of just 74dB, and maximum operator space with unrivalled visibility. A central LCD dash display provides all important machine operating data, alerting the operator to any potential faults. A second screen can be supplied for an optional high-resolution reversing camera.

The 455ZX has twin gullwing engine canopy doors, providing easy ground level access to all regular service and fill points. There are remote greasing points and the batteries are located at the rear of the machine with all fuses and relays out of harm’s way behind the operator’s seat in the cab. A lockable tool box under the right hand steps includes an engine oil drainage hose, making it easier for maintenance technicians to ensure that there is no contamination of the ground when changing oils.

The standard JCB 455ZX machine is equipped with BKT XL cross-ply tyres, a heater and air-conditioning, limited slip differential axles, two-spool hydraulic valves, a 3.1-cu-m bucket with bolt-on teeth, a flashing beacon and 12V in-cab electrics.

A wide range of optional equipment will also be offered to tailor the machines to their jobsite.

“The JCB 455ZX offers customers superior performance with unbeatable economy. The proven driveline components deliver power and efficiency, while hydraulic pumps from Rexroth and proven Parker valve blocks ensure durability and reliability. Excellent service access and an operator’s cab that provides new levels of comfort, low noise and superior visibility will boost productivity and reduce operator fatigue,” says the spokesman.

The 455ZX will be supplied as standard with a two-year factory warranty and three years of LiveLink telematic support, providing peace of mind for the customer and maximising their return on investment.  

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