New models from hauler manufacturer Komatsu promise increased fuel efficiency and improved torque.
Hauler manufacturer Komatsu has launched a new generation of wheel loaders, the WA475-11 and WA485-11. These models come equipped with new technology and offer ‘great performance, efficiency, and operator comfort’, according to the company.
Power and efficiency
The Dash 11 generation wheel loaders are fitted with a Komatsu diesel engine characterised by high torque in the low-speed range. The engine is combined with a Komatsu-designed hydro-mechanical-transmission (HMT) which enhances performance, power reserves, fuel efficiency and ease of operation for transport and loading tasks.
The WA475-11, for example, demonstrates a 14% improvement in fuel efficiency over its Dash 10 predecessor, while the WA485-11 benefits from a 29% increase in fuel efficiency compared with its predecessor the WA480-8.
Thanks to a constant variable gear ratio, the engine always remains in an efficient fuel zone. Variable speed control makes it possible to individually adapt the machine’s maximum speed to the requirements of the job site. The adjustable variable traction control effectively limits wheel spin in difficult ground conditions.
Upgrade in payload and bucket capacity
Compared with its predecessor the WA480-8, the WA485-11’s payload and bucket capacity have been upgraded too. All machine components have been adapted to a permanent payload of 8,800 kg and can be increased to 9,300 kg in an aggregate handling variant, which helps reduce the number of loading cycles required depending on the vehicle size.
Reduced emissions
The new wheel loaders have advanced emissions control systems, which meet EU Stage V standards. In addition, the well-proven Komatsu exhaust system includes a diesel particulate filter (KDPF) which, together with the Selective Catalyst Reduction (SCR) system, further reduces NOx emissions using AdBlue. These technologies, in conjunction with the particularly low-emission combustion, mean the diesel particulate filter need only be replaced every 8,000 hours; this interval can be extended even further by using particularly low-ash engine oils.
A balance between traction and lifting power
Another new feature is the variable power control, enabling the lifting speed to be controlled independently of the accelerator pedal.
The optimised Z-bar linkage offers up to 20% more lifting power and a higher production rate of tons per hour. Good lifting speed and machine stability help to increase productivity, especially in tight V-shaped loading applications. In addition, the hydraulic response time and the tipping or lifting speed can be adjusted to specific application requirements.
Operator comfort with an ergonomic design
A spacious cab offers all-round glazing and has an interior noise level of just 70 dB(A). The heated rear window is angled, which effectively prevents dirt from sticking on the rear screen. The lever console has a new command control switch and is adjustable on a 5-way axis for each operator. The increased internal air pressure prevents dust and other particles from entering the cab. For easy and safe entry and exit, both machines are equipped with a rear-hinged door, angled steps and large handrails.
For more information visit: www.komatsu.eu
