Komatsu redevelops D475A-8 dozer mainframe for durability

28 Aug 2021 CW Team

Komatsu has redesigned the mainframe on its D475A-8 dozer to get twice the life of prior models and resist multiple reconstruct/renew cycles.

The redesigned dozer’s low centre of gravity gives machine durability and puts more track on the ground to decrease slippage. It also provides the machine more traction, ripping efficiency and pushing power. When shoe slippage is detected, sensors regulate the engine speed automatically to reduce loss of tractive effort.

During long pushes, the automatic gear shift mode involves the torque converter lockup clutch. It directs 100% of the engine’s power to the transmission, improves ground speed and meets the direct-drive efficiency. Torque converter lockup further helps reduce cycle times, enhances fuel economy and boosts productivity.

Compared to previous models, the D475A-8 provides a 10% increase in productivity, 11.5% more engine power in reverse and a 10% drop in fuel consumption in the torque converter lockup mode.

Komatsu also re-engineered the cab to make the D475A-8 more convenient with features like ergonomically placed touchpoints and palm control joysticks. Enhanced visibility to the ripper shank, a rear view monitoring system and a heated, air-suspended, ventilated seat also enhance the operator experience. Additionally, the redesigned undercarriage of the D475A-8 decreases shock and vibrations when the dozer moves over rough terrain.

Features like centralised greasing points, ground-level fill and evacuation ports, and battery and starter isolators with lockout/tag out functionality reduce planned downtime and enhance maintenance efficiency.

Image Source

Also read: Komatsu and Honda to jointly build micro electric excavator

Infrastructure Urban

06 Jul 2026

ABS Marine Sees CRISIL Credit Rating Upgrade

ABS Marine Services has secured an upgrade to its long term and short term credit ratings from CRISIL, reflecting improved profitability and revenue growth through long term contracts. CRISIL moved the long term rating from BBB+/Stable to A-/Stable and revised the short term rating from A2 to A2+. The action signals strengthened financial metrics and operational resilience. The company benefited from durable client relationships with firms such as ONGC and Schlumberger. The rating decision followed stronger cash flows and an enlarged bank loan facility, which increased from Rs 3,705 million (m..

Project BRAHMANK Marks 16 Years Of Strategic Roads In Arunachal

Project BRAHMANK is marking 16 years of work to establish strategic road and bridge links across Arunachal Pradesh, maintaining and developing 811 kilometres of roads and nearly 86 bridges that range from small culverts to large steel and arch bridges. These transport links are described as critical for ensuring year-round movement of defence personnel, equipment and essential supplies while improving everyday travel for people in remote villages. The project balances national security requirements with regional development by focusing on reliable access in challenging terrain. Notable enginee..

Longleng CSOs Give One Week Ultimatum Over Two-Lane Highway

Civil society organisations (CSOs) in Longleng district have demanded immediate restoration of the deteriorating Changtongya–Longleng two-lane road and sought a detailed status report on the stalled construction within one week. The demand followed a consultative meeting convened under the Phom Peoples' Council (PPC) to discuss welfare and development concerns. PPC president YB Angam Phom said prolonged non-maintenance had caused hardship to commuters and affected transportation, local commerce and the district's development. The meeting urged authorities to undertake immediate restoration a..