Specialist crawler loaders for landfill applications

THE latest Generation IV fully hydrostatic tracked loading shovels from Liebherr include two models – the LR 624 Litronic and the LR 634 Litronic – that have been specifically engineered and built to meet the particular requirements of landfill work.

According to the company, a number of specific landfill features have been designed into the machines and the latest engine technology has been employed to ensure reliability, performance, fuel economy and reduced noise and exhaust emissions.

Liebherr’s well proven and highly developed hydrostatic drive system remains at the heart of the crawler loader range, which now also includes the company’s high-technology Litronic engine and hydraulics management system to ensure optimum output and efficiency at all times, as well as fulfilling a diagnostic role for maintenance purposes.

Weighing approximately 18 tonnes and 21 tonnes, respectively, the LR 624 and LR 634 Litronic machines have been designed to handle a wide variety of tasks, including loading and carrying, sorting and condensing garbage, bulldozing and grading. The machines are also equally adept at spreading landfill cover or on general earthmoving duties when new cells have to be created.

Standard landfill specification includes all the necessary features required to protect the machine and operator on the harshest of sites. These features include lift-cylinder covers, external air supply alternator, exhaust manifold isolation, radiator guard, engine air pre-cleaner with automatic dust ejection, cooling system reversible fan, final-drive protection rings and fine perforated plates to the engine housing.

Several optional extras are also available, such as rear a striker bar, fuel tank guard, track shoes with trapezoidal holes and tilt cylinder guard. Rear-view CCTV systems and an automatic central lubrication system can also be installed.

For the operator, the spacious air-conditioned cab on crawler loaders provides a comfortable, functional and safe work station for optimum performance and minimum fatigue. It is glazed with tinted armoured glass, fully ROPS and FOPS protected, and lightly pressurized to prevent dust and odour incursion.

A fully adjustable seat, with ventral safety belt, includes twin joystick controls integrated into the armrests – one for travel speed and direction, the other for attachment movements. Liebherr also offer the option of steering pedals via V-pattern travel control.

Front-end attachments include standard, multi-purpose, waste and clamshell buckets with appropriate bolt-on or flush-mounted weld adaptors for teeth and cutting edges suited to the purpose. A rear-mounted rigid drawbar or three-shank ripper can also be fitted.