CATERPILLAR 990 II WHEEL LOADER

Technical Description

The Caterpillar 990 Series II is a heavy-duty wheel loader engineered for high productivity and durability in demanding mining, quarry, and heavy construction applications. It is powered by a Cat 3412E TA engine delivering 625 hp (466 kW) with a displacement of 1,647.7 cubic inches, featuring a 5.4-inch bore and 6-inch stroke. The machine includes a powershift transmission with 3 forward and 3 reverse speeds, achieving a maximum forward speed of 14 mph and reverse speed of 15.6 mph. The loader is equipped with a bucket capacity ranging from 11 to 12 cubic yards (approximately 8 to 9 m³), with a maximum breakout force of 63,066 lbs (28,607 kg). The bucket width measures 14.6 feet (4 meters), offering a dump clearance up to 13.3 feet (4 meters) at full lift. The hydraulic system features two lift cylinders and one tilt cylinder with relief valve settings at 4,500 psi, enabling rapid hydraulic cycle times including dump in 2.9 seconds and full cycle in 15.9 seconds. Structurally, the 990 II has a wheelbase of 15.1 feet (5 meters) and an overall length of 42.2 feet (13 meters) with the bucket on ground. The articulation angle is 35°, supported by a fixed front axle and trunnion rear axle with an oscillation angle of 11°. Operating weight is approximately 162,018 lbs (73,490 kg) with a rated payload of 33,000 lbs (14,969 kg). The cab meets SAE and ISO ROPS/FOPS standards, ensuring operator safety and sound performance compliance with ANSI, SAE, and ISO standards. Fuel capacity is 256.3 gallons (969 liters), supporting extended operational cycles. This robust configuration makes the 990 Series II an efficient and reliable loader for high-capacity material handling.