Excavator hydraulic systems consist of various components that work together to power the machine's movement, operation, and attachments. Here are some common types of hydraulic parts found in excavators:
1. Hydraulic Pump: The hydraulic pump is responsible for generating hydraulic pressure by converting mechanical power from the engine into hydraulic energy. It supplies pressurized hydraulic fluid to the system.
2. Hydraulic Cylinders: Excavators have multiple hydraulic cylinders that provide linear movement for various functions. These cylinders include boom cylinders, arm cylinders, bucket cylinders, and attachments cylinders. They extend or retract to control the movement of the boom, arm, bucket, and other attachments.
3. Control Valves: Control valves regulate the flow and direction of hydraulic fluid within the system. They control the operation of the hydraulic cylinders, determining the speed, force, and direction of the excavator's movements.
4. Hydraulic Hoses and Fittings: Hydraulic hoses carry the pressurized fluid between different hydraulic components. They are typically reinforced with steel or synthetic materials to withstand high pressures. Hydraulic fittings connect the hoses to various hydraulic components securely.
5. Hydraulic Filters: Hydraulic filters are essential for maintaining the cleanliness of the hydraulic fluid. They trap contaminants and particles that may otherwise damage the hydraulic components. Common types of filters include return filters, suction filters, and pressure filters.
6. Hydraulic Reservoir: The hydraulic reservoir, also known as the hydraulic tank, is a storage container for hydraulic fluid. It helps dissipate heat, allows air separation from the fluid, and provides a reservoir for fluid volume changes during system operation.
7. Hydraulic Motors: Hydraulic motors convert hydraulic energy into mechanical power to drive various functions, such as rotating the excavator's upper structure or powering hydraulic attachments.
8. Hydraulic Seals: Hydraulic seals are used to prevent fluid leakage between moving parts in the hydraulic system. They ensure proper sealing and help maintain the system's efficiency.
9. Accumulators: Accumulators store hydraulic energy and provide supplemental power during peak demands, reducing strain on the hydraulic pump and improving system response.
10. Hydraulic Control System: The hydraulic control system includes control levers, joysticks, and electronic control units that allow the operator to control the excavator's hydraulic functions.
11. Hydraulic Control Valves: Hydraulic control valves are responsible for regulating the flow and pressure of hydraulic fluid to different actuators and hydraulic motors. They enable precise control of the excavator's movements and functions.
12. Hydraulic Filters and Strainers: In addition to hydraulic filters mentioned earlier, excavators may also have hydraulic strainers. Strainers are coarse filters that remove larger debris from the hydraulic fluid before it reaches the more fine and sensitive filters.
13. Hydraulic Coolers: Hydraulic coolers, also known as heat exchangers, help regulate the temperature of the hydraulic fluid. They dissipate excess heat generated by the hydraulic system, preventing overheating and ensuring optimal performance.
14. Hydraulic Quick Couplers: Hydraulic quick couplers allow for the fast and efficient attachment and detachment of hydraulic tools and attachments. They provide a secure connection and enable the operator to switch between different attachments quickly.
15. Hydraulic Lines and Fittings: Hydraulic lines and fittings are crucial for the proper routing and connection of hydraulic hoses and components. They are designed to handle the high-pressure hydraulic fluid and ensure a leak-free system.
16. Hydraulic Sensors and Switches: Excavators may incorporate various hydraulic sensors and switches to monitor and control the hydraulic system's performance. These sensors can provide feedback on pressure, temperature, flow rate, and other hydraulic parameters.
17. Hydraulic Relief Valves: Hydraulic relief valves are safety devices that protect the hydraulic system from excessive pressure. They open and relieve pressure when it exceeds a predetermined limit, preventing damage to the system.
18. Hydraulic Accumulator Charging Kit: Accumulators, as mentioned earlier, may require periodic charging. A hydraulic accumulator charging kit is used to charge or recharge the accumulators with nitrogen gas to maintain their proper functioning.
19. Hydraulic Manifolds: Hydraulic manifolds are blocks or plates that distribute hydraulic fluid to different components or circuits within the system. They provide a central point for connecting hydraulic lines and simplify the overall hydraulic system design.
20. Hydraulic Control Pedals: Some excavators feature hydraulic control pedals that allow the operator to control certain functions, such as track speed and direction, using foot pedals.
21. Hydraulic Swivels: Hydraulic swivels, also known as rotary joints, allow the transfer of hydraulic fluid between stationary and rotating parts of the excavator. They are commonly used in the hydraulic system of the excavator's rotating upper structure to enable continuous fluid flow during rotation.
22. Pilot Control Valves: Pilot control valves are small valves that control the flow and pressure of hydraulic fluid to the primary control valves. They are operated by the operator's joystick or control lever inputs and provide precise control over the excavator's movements.
23. Hydraulic Accumulator: Hydraulic accumulators store pressurized hydraulic fluid that can be used to supplement the hydraulic system's power during peak demands. They help maintain consistent pressure and provide additional energy for quick and responsive operation.
24. Hydraulic Cylinder Seal Kits: Hydraulic cylinder seal kits contain seals, o-rings, and other components necessary for repairing or rebuilding hydraulic cylinders. These kits are often used during maintenance or when hydraulic cylinders develop leaks or wear over time.
25. Hydraulic Pressure Gauges: Hydraulic pressure gauges are used to measure and display the hydraulic system's pressure. They provide valuable feedback to the operator or maintenance personnel for monitoring system performance and troubleshooting potential issues.
26. Hydraulic Motors: Hydraulic motors convert hydraulic energy into mechanical energy to drive various functions, such as rotating attachments or powering auxiliary hydraulic systems. They can be found in applications such as swing motors, travel motors, or hydraulic winches.
27. Hydraulic Control Blocks: Hydraulic control blocks, also known as valve blocks or manifold blocks, are multi-port hydraulic components that house various valves, sensors, and other hydraulic control elements. They provide a compact and organized solution for controlling fluid flow within the hydraulic system.
28. Hydraulic Relief Valves: Hydraulic relief valves are safety valves that protect the hydraulic system from excessive pressure by diverting excess fluid back to the reservoir. They help prevent damage to hydraulic components and maintain system integrity.
29. Hydraulic Proportional Valves: Hydraulic proportional valves allow for precise control of hydraulic flow and pressure by modulating the valve opening proportionally to the input signal. They are commonly used in applications that require fine control, such as controlling the speed or force of hydraulic movements.
30. Hydraulic Filtration System: The hydraulic filtration system consists of various filters, strainers, and filter elements that remove contaminants from the hydraulic fluid. It helps maintain the cleanliness of the hydraulic system, prolong the life of components, and ensure optimal performance.
It's important to note that the specific hydraulic parts and their configurations can vary significantly depending on the excavator model, manufacturer, and specific requirements. For detailed and accurate information about the hydraulic parts in a particular excavator, it is best to consult the excavator's manufacturer documentation, such as the user manual, or reach out to authorized dealers or service centers. They can provide comprehensive information on the hydraulic components specific to your excavator model.
About hydraulic parts price
The price range of hydraulic parts for excavators can vary significantly based on various factors such as the specific part, brand, quality, availability, and region. Additionally, prices can change over time due to market conditions and other factors. Therefore, it is challenging to provide an accurate and up-to-date price range for each individual part.
It is recommended to contact authorized dealers, suppliers, or service centers that specialize in excavator parts to get the most accurate and current pricing information for the specific hydraulic parts you are interested in. They can provide you with quotes and price ranges based on your specific requirements and location.
Furthermore, it's important to consider that some parts may be available as genuine OEM (Original Equipment Manufacturer) parts, while others may be available as aftermarket or remanufactured options, which can vary in price. OEM parts are typically more expensive, but they are designed and manufactured by the original equipment manufacturer and may offer higher quality and compatibility.
Overall, the price range of hydraulic parts for excavators can vary significantly, ranging from a few hundred dollars for smaller components to several thousand dollars for larger and more complex parts.
