New generation material handler from Caterpillar

By Lindsay Gale11 May 2012

Cat has introduced the 20.5 tonne M318D MH Waste Handler that has specifically configured for confined work spaces above or around the machine, indoors and out. This wheeled excavator design meets industry criteria to ensure safe operation and high production, and incorporates significant undercarriage and boom modifications while retaining the proven features of its conventional M318D MH counterpart. This includes a fuel-efficient 3B compliant Cat C6.6 ACERT engine delivering 124 kW (167 hp), load sensing hydraulics, dedicated swing pump, heavy duty axles, stabiliser configurations and a spacious cab with joystick steering available as an option.

The new machine features a purpose-built undercarriage with a centred swing bearing tower that is situated equidistant from the axles and stabilisers for symmetry and optimum balance whether the machine is working over the front or the rear. This tower is also larger to accommodate the hydraulic cab riser swing bearing.

The new boom design has a shorter pin-to-pin length of 5.4 m (17.6 ft) and is designed for use with a 4.2 m (13.8 ft) stick. It is of welded box-section design with thick multi-plate fabrications in high stress areas for strength and durability.

An optional Waste Handling package is available for the machine that allows it to work efficiently in waste transfer stations and other dusty environments that features an automatic hydraulically driven fan that periodically reverses after a specified interval. A dense wire mesh hood optimises cooling and reduces radiator clogging, and a Sy-Klone pre-cleaner separates and ejects debris from the engine intake air before it reaches the primary air cleaner.

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