The CAT 312D hydraulic pump 311-7404 is a variable displacement axial piston pump, designed to provide high-pressure hydraulic fluid to various components of the excavator's hydraulic system.
It operates using the principle of converting mechanical energy from the engine into hydraulic energy, allowing the machine to perform its various functions.
One of the key specifications of the 311-7404 hydraulic pump is its displacement capacity. It has a maximum displacement of 80 cc (cubic centimeters) per revolution, which means it can deliver a specific volume of hydraulic fluid for each revolution of the pump. This displacement capacity directly influences the excavator's overall hydraulic power and performance.
The pump is designed to operate at a maximum pressure of 350 bar (5075 psi). This high-pressure capability ensures that the hydraulic system can generate sufficient force to operate the excavator's boom, arm, and bucket efficiently. The pump's ability to handle high pressure also contributes to the excavator's digging and lifting capabilities.
In terms of efficiency, the 311-7404 hydraulic pump is designed to maximize energy utilization.
It features a variable displacement system, which means it can adjust its output volume according to the required workload. This feature helps in reducing unnecessary power consumption and optimizing fuel efficiency, resulting in cost savings and reduced environmental impact.
The hydraulic pump is driven by the excavator's engine through a power take-off (PTO) mechanism. It is equipped with a robust drive shaft and bearings to ensure reliable power transmission and durability even under heavy loads and demanding operating conditions. Additionally, the pump is designed to operate smoothly and quietly, minimizing vibrations and noise levels during operation.
Maintenance is an essential aspect of any hydraulic system, and the CAT 312D hydraulic pump 311-7404 is designed with ease of maintenance in mind. It incorporates a cartridge-type design, allowing for quick and convenient replacement of components such as the valve plate and pistons. This design feature simplifies maintenance procedures, reduces downtime, and contributes to overall cost-effectiveness.