Komatsu America Corp., Vernon Hills, Ill., has introduced the new WA600-6 wheel loader, the first Komatsu wheel loader equipped with a Tier 3-compliant engine. The 118,385-lb WA600-6 is designed primarily for quarry, sand and gravel, industrial and smaller mining applications. The WA600-6 (Circle 901) is powered by a Komatsu Tier 3 SAA6D170E-5 six-cylinder engine producing 502 hp at 1,800 rpm—a significant increase in power over the previous model.
Besides meeting all Tier 3 requirements, Komatsu’s Tier 3 engine is equipped with innovative new technologies including an electronic control system to optimize vehicle performance, a heavy-duty, high-pressure common rail fuel injection system, a new combustion system for reduced noise and fuel consumption, a cooled exhaust gas recirculation system and an air-to-air charge air-cooling system. The WA600-6’s engine comes standard with dual-mode engine power: an economy mode for fuel efficiency and a power mode for maximum productivity.
The WA600-6 boasts a breakout force of 87,230 lb, a straight static tipping load of 80,645 lb and a 40° turn tipping load of 67,210 lb. For maximum bucket control during both single and simultaneous bucket movements and improved fuel consumption, the machine is equipped with variable-displacement piston pumps and a closed load-sensing system. Its standard 8.4-cu-yd bucket is ideally suited to loading 50- to 60-ton haul trucks.