Modern Quarrying January-February 2017

ON THE COVER

in a hard world

BHL global market. The new JCB 455ZX offers premium quality and reliability; the process we’ve used in its design and manufacturing will ensure a reliable work horse, and we’ve already had a lot of inter- est shown in this machine,” Senyard says. “We use state-of-the-art manufactur- ing processes like robot machining, pre- cision paint technology and innovative assembly techniques to achieve the high- est levels of build safety.” Finite element analysis and rig testing ensure superior structural strength and durability, and the machine has under- gone rigid hot and cold climate testing. Recessed rear lights are protected within the solid counterweight; the counter- weight and cast quarter pillars also pro- tect the cooling pack and the back end of the machine from damage. Other features include: • JCB Dieselmax engines feature a heavy-duty cast iron cylinder block, cylinder head and forged crankshaft to provide high strength and long life.

structure, as well as a high-strength boom and arm, this excavator is designed to excel in tough quarry applications. We use finite element analysis with extensive rig and endurance testing to make key components last longer.” All round-visibility is superb, with a large glass area on the right hand side and top corner of the cab. An innovative low-level bonnet allows clear rearward views. Operators are kept abreast of key information via the 3,5”display, which can be accessed via a new rotary controller. A spacious stowage area behind the seat provides plenty of room for an operator’s personal items. JCB’s optional rear view camera dis- plays an uninterrupted rearward view for improved operator confidence while slewing. The bonnet opens front-to-rear for easy and safe engine service access. JCB’s Safety Level Lock fully isolates hydraulic functions to avoid unintended move- ments. The 2GO system means a new JCB JS305 can only be started in a safe locked position via two separate inputs. LiveLink telematics are fitted as stan- dard. This is an innovative JCB feature designed to maximise security and fleet utilisation, allowing the monitoring of information such as fuel usage on differ- ent shifts. “In the past, we had the JS290, the 240, the 360 and 370, which are UK-built machines – and the 30 t market is one that we haven’t really got into in South Africa. However, we believe that with the 305, we are ready to tackle that now,” he says. “Both machines are very competi- tively priced and the enquiries and leads are coming in.” JCB 455ZX wheeled loading shovel “If one looks at the backoe loader mar- ket, we are probably some 10-15 market share points ahead of the closest com- petitor. JCB is very proud of the fact that we are pretty much just under 50% of the

• Precision machining provides high tolerances and accurate location of the 455ZX’s pins and bushes. • There are top quality components fit- ted to the 455ZX such as the ZF trans- mission and axles, Rexroth pumps and a Parker valve block. • The articulation joint has a heavy- duty box section (much stronger than a single plate with a boss), a heavy- duty centre pin and oversized bush, as well as twin taper roller bearings on the bottom box joints. This setup can tolerate both vertical and horizontal loadings for durability and rigidity. Steering rams are positioned high up and protected from damage. • The JCB Dieselmax 672 is equipped with high-capacity multistage fuel filtration designed specifically for reliable operation in territories where fuel quality cannot be guaranteed. This consists of water separation and a unique 3-stage filtration system dealing with water in fuel, fine and

The JCB 455ZX is designed to move more material for less and to this end, the engine, axles, driveline and hydraulics have been built to work in harmony.

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MODERN QUARRYING

January - February 2017