Komatsu introduced its versatile new WA475-10 wheel loader at Conexpo/IFPE 2020. It’s designed for quarry, waste, infrastructure, forestry, and non-residential construction applications.
According to the company, the new machine was developed to support customers’ needs for improved productivity and lower fuel costs. Its engine has 22 more horsepower than the previous WA470-8 model but, thanks to the Komatsu Hydraulic Mechanical Transmission (KHMT), it achieves up to a 30% increase in fuel efficiency. KHMT dynamic braking also reduces brake wear for extended component life.
The wheel loader’s Independent Work Equipment Control simplifies operation and reduces fuel consumption by separating the accelerator pedal from the speed of the work equipment. To boost productivity, the boom lift force of the WA475-10 is increased by 20%, and break out force is improved by 8%. The new bucket design improves pile penetration, making it easier to fill and improves material retention in load and carry applications.
The machine is powered by a 6-cylinder, 674 cu.in. Komatsu engine rated at 290 hp. The hydraulic steering piston pump delivers 51 gpm at 3,555 psi relief setting. Loader control is powered by an 88 gpm piston pump rated at 4,980 psi. Hydraulic cycle time for a standard bucket load is 5.8 sec to raise, 1.8 sec to dump and 3.1 sec to lower.
The machine’s auto hill holding function enables the WA475-10 to remain stationary on a slope without using the brakes. So, even if the operator doesn’t apply the brake pedal, the machine won’t roll back on uphill applications such as stockpiling operations, thereby reducing service brake wear and enhancing operation.