LINK-BELT 4300 QUANTUM ROAD BUILDER CRAWLER EXCAVATOR

Technical Description

The Link-Belt 4300 Quantum Road Builder is a heavy-duty hydraulic crawler excavator engineered for demanding earthmoving and road construction applications. Powered by a Cummins M11-C265 turbocharged diesel engine, this machine delivers 240 net horsepower at 1,700 rpm with a maximum torque output of 900 foot-pounds at 1,300 rpm, providing robust digging and loading capabilities. The excavator features a compact operating weight of 83,304 pounds, making it maneuverable on job sites while maintaining substantial digging force of 31,467 pounds and bucket digging force of 42,990 pounds in Power Up Mode. With a maximum reach along ground of 35.9 feet and maximum digging depth of 23.6 feet, this machine excels in deep trenching and foundation work. The bucket options range from 1.2 to 2.8 cubic yards, with a reference capacity of 1.5 cubic yards, accommodating various material handling requirements. The swing mechanism operates at 10.1 rpm with 73,709 foot-pounds of torque, enabling efficient multi-directional operations. The undercarriage is engineered for stability and durability, featuring an 11-foot tail swing radius and 12-foot track width with a ground pressure rating of only 8.7 psi, minimizing ground disturbance. Two variable displacement axial piston pumps and one gear pump drive hydraulic operations, supported by an 84.6-gallon hydraulic system pressurized to 4,620 psi. The IQ Control system includes four selectable working modes, free swing functionality, and three safety lockout switches, optimizing operator control and worksite safety for diverse road-building applications.