Technical Description
The Caterpillar 994D is a heavy-duty wheel loader engineered for mining and large-scale material handling applications. It features a fixed front axle and a rear trunnion axle with a 10° oscillation, providing stability and flexibility in rough terrain. The loader is powered by a Cat 3516B EUI engine delivering net power between 1,015 and 1,375 hp depending on standards, supported by a 4221 cubic inch displacement and a 7.6-inch stroke. Its hydraulic system uses closed-circuit piston pumps for lift/tilt and variable displacement pumps for steering, enabling efficient operation with a total hydraulic cycle time of 19.9 seconds.
The 994D’s bucket capacities range from 14.6 to 41 cubic yards, with a breakout force of 237,825 lbs, designed for optimal loadability and structural reliability. Bucket width measures 18.6 ft, with a dump clearance of 19.1 ft at maximum raise, and a hinge pin height of 26.8 ft. The loader’s dimensions include an overall length of approximately 55 ft, width of 17.9 ft, and ground clearance of 2.7 ft. Rated payload capacity is 76,000 lbs standard, or 68,000 lbs for the high-lift variant, matching Cat’s 785C, 789C, and 793C trucks for efficient loading cycles.
Transmission operates via a Cat planetary power shift with three forward and reverse gears, maxing at 14.6 mph forward and 16.1 mph reverse, supported by a fuel capacity of 1,199 gallons and an operating weight of about 417,429 lbs. The 994D combines high power, hydraulic efficiency, and robust structural design, making it a premier choice for heavy material handling in tough environments.
