Komatsu boost fuel efficiency with its WA475-10 wheel loader

First published at bauma - April 15, 2019

Komatsu’s WA475-10 wheel loader has an innovative mechanical hydraulic transmission

Komatsu says that its prototype WA475-10 wheel loader is up to 30% more fuel efficient than its predecessor, thanks to an innovative mechanical hydraulic transmission.

The 24-tonne next generation class wheel loader comes with a Stage V engine that at low engine speeds puts out high power and delivers more engine torque and performance. The aftertreatment system combines a Komatsu Diesel Particulate Filter (KDPF) and Selective Catalytic Reduction (SCR).

The SCR system further reduces NOx emissions using AdBlue. The engine’s advanced electronic control system manages the airflow rate and the fuel injection, combustion parameters and aftertreatment functions. This optimises performance, reduces emissions and provides advanced diagnostics.

With the Komatsu Hydraulic Mechanical a variable speed control adjusts the machine’s top speed throughout the entire speed range to the job-site’s requirements. The adjustable variable traction control effectively limits wheel spin in difficult ground conditions.

The hydraulic speed can be independently controlled directly from the accelerator pedal. Komatsu said that it has never been easier for an operator to find the right balance between traction and lifting power. The optimised Z-bar linkage system provides much more lift force and a higher tonnes-per-hour production rate. Lift speed and machine stability help boost productivity, especially in narrow V-Shape loading applications. Response time of the hydraulics and the dumping or lifting can be set to specific job-sites.

The new more spacious cab has an internal noise level of only 70 dB(A). With only four pillars, its all-around glass surface contributes to visibility. A full-colour high-resolution monitor provides key machine metrics including KDPF status and data for AdBlue e-levels and fuel consumption.