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M AT E R I A L S H A N D L I N G E Q U I P M E N T
THE WHEEL DEAL
Construction Plant News explores the latest developments in wheel loaders
쑼Cat 988K XE Wheel Loader
Updates to the Cat 988K XE deliver up to 10 per cent faster downhill speed, improved rimpull and increased hydraulic breakout force for up to 5 per cent. Moreover, the updated design improves cycle times in load and carry applications, while an optional counterweight increases stability and offers faster maneouverability. The switch reluctance electric drive technology on the machine increases overall efficiency by 25 per
cent and face-loading application efficiency by up to 49 per cent compared to the 988K. Economy mode operation reduces rated speed of the durable Cat C18 engine to further reduce fuel consumption. Increased hydraulic speed and faster cycle times decrease idle time and fuel burn to increase loader efficiency. Greenhouse gas reductions through operating the electric drive versus the mechanical drive model are equivalent to up to 1 year of electricity use for nearly 10 homes.
Hitachi ZW180-7 Wheel Loaders 씰 Hitachi has unveiled the ZW180-7, a smaller next-generation model from its Stage V-compliant wheel loader range, which has been carefully designed to appeal to both owners and operators. Some of the lowest noise and vibration levels for operators in the market is how the manufacturer describes the in-cab comfort, with an improved seat with mounted electric pilot control leavers, ergonomic multifunction lever, anti-slip steering wheel, 40 per cent larger and fully adjustable armrest with integrated controller and convenient side switch panel. The hi-res screen is also easier to view. An Aerial Angle camera system offers a 270-degree bird’s-eye view of the job site which is complemented by a full LED work lights package. If anything is close to the rear of the machine, they are alerted immediately by the rear obstacle detection and warning system. The Approach Speed Control feature reduces fuel consumption by 16 per cent and significant improvements to the engine torque make for easier bucket filling, faster cycle times, and higher productivity with reduced fuel consumption.
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Doosan DL-7 Range
The Doosan ‘DL-7’ range of wheel loaders has expanded with the introduction of the DL200-7 and DL420CVT-7 models. In addition to a Stage V engine, the manufacturer is promising higher productivity, increased fuel efficiency and a low cost of ownership, whilst redesigned buckets offer up to 7 per cent more capacity, with maximum bucket capacities from 2.0 to 6.4 m3. Power in the DL200-7, the smallest model in the range, is provided by the Perkins 1204J 4-cylinder Stage V engine with an output of 106 kW (144 HP) at 2,200 RPM. With an output of 240 kW (326 HP) of power at 1,800 RPM, the Scania DC09 engine in the DL420CVT-7 provides generous torque at low RPM. Both engines meet Stage V emission regulations through the use of selective catalyst reduction, diesel oxidation catalyst and diesel particulate filter (DPF) after-treatment technologies. The DL420CVT-7 is equipped with a Continuously Variable Transmission (CVT), the result of a permanent combination of a hydraulic technology and a mechanical technology which provides a smooth and continuous speed variation. It allows the unit to automatically transition from hydrostatic power at low speed to the mechanical system to operate at higher speeds. With the CVT, a fuel saving of up to 15 per cent can be achieved.
