Expert Of Excavator Hydraulic Pump Parts In China


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Xugong KS Excavator Hydraulic Pump Parts

Xugong KS got you covered for all your required excavator hydraulic pump parts replacement. With more than 12 years of industry experience. Xugong KS has a strong supply ability for different excavator hydraulic pump parts.

We supply a variety of excavator hydraulic pump parts such as gears, seals, shaft, piston shoe, valve plate, cylinder block, center pin, and many more.

Order your excavator hydraulic pump parts now!

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XuGong KS Excavator Hydraulic Pump Parts Factory Overview

Where to find excavator hydraulic pump parts that fit very well?

Xugong KS provides reliable and suitable excavator hydraulic pump parts to back on your hydraulic pump. Being in the industry for over 12 years, our knowledgeable team has all the charts of measurement, dimensions, sizes, and applications of excavator hydraulic pump parts.

Our excavator hydraulic pump parts are 100% made accordingly to OEM technology. So, you are pretty much assured that it will fit very well based on your model. To conserve your time and effort. Our wide database has a specific part no. Once you order the excavator hydraulic pump parts that you need. Just email us what part no. that you are looking for. In just 5 minutes, excavator hydraulic pump parts will be quoted to you.

For your assurance. All our in-stock excavator hydraulic pump parts are well organized and properly manage. This will fit in properly with no leaks, damages, or any unusual issues. Being the leading supplier of excavator hydraulic pump parts for major excavator brands, rebuild centers and big construction companies. Xugong KS is excited to offer you, quality excavator, hydraulic pump parts with fast service. Grab your needed excavator hydraulic pump parts at Xugong KS.


Excavator Hydraulic Pump Parts – The Definitive FAQ Guide


Excavator hydraulic pump parts FAQ Guide gives you more information about each hydraulic pump part. It will also assist you in the selection process. This FAQ Guide contains information on materials used in excavator hydraulic pump parts, coil springs, valve plate, swashplate, piston shoe, piston, and much more.


1. What do you mean by excavator hydraulic pump parts?


Excavator hydraulic pump parts are parts of the hydraulics system of a machine known as excavators or crawler tractors. This mechanism is made up of different components, and they all must work in synchrony for the machine to be functional.


Excavator hydraulic pump parts include the valve plate, cylinder block, pump, driveshaft, and ball guide. These are only a few excavator hydraulic pump parts. If your excavator hydraulic pump parts get damaged or malfunctioned, your excavator does not operate and may fail. Excavator hydraulic pump parts are used in heavy-duty vehicles to increase the performance and efficiency of the machine.


2. What type of materials are used in making excavator hydraulic pump parts?


Excavator hydraulic pump parts are made of various types of materials. Some of the materials used in the manufacturing of excavator hydraulic pump parts are described below. They can be made of stainless steel, aluminum, copper, brass, bronze, cast iron, alloy, rubber, polyurethane, and other different kinds and grades of materials.


The majority are built using high-grade steel that is strong enough to last for a long time. Different materials have different characteristics, and these materials depending on the roughness of applications, are utilized in specific harsh working conditions.


A particular type of material is suitable for specific working conditions, and this will help increase the lifetime and reduce the downtime of your excavator hydraulic pump.


3. What is the role of support in excavator hydraulic pump parts?


Support has the primary role in excavator hydraulic pump parts. To ensure the safe and reliable operation of the excavator hydraulic pump, good help is essential. Because the hydraulic pump must often maintain a certain pressure, the press plate must be stable.


It should be perpendicular to the fixed wall, and the end of the vertical fence should ensure that it does not tilt. The center of gravity is at one end, so it will become unstable and cause oil leakage when the wall tilts too much.


Excavator hydraulic pump parts are essential for the smooth and efficient operation of an excavator. Without a high-quality pump that is properly supported, all other excavator functions will be significantly affected.


4. What is the role of swash plate in excavator hydraulic pump parts?


Swashplate plays a significant role in excavator hydraulic pump parts. Swash plates in excavator hydraulic pump parts are used to transmit the power from the engine to the hydraulic pump.


The option exists that the swashplate is replaceable. Swash plates come in many different shapes and sizes; they are not reusable but shift plates. The swashplate in the excavator hydraulic pump is mainly installed in the cylinder block to connect the engine shaft and hydraulic pump.


Then, the swashplate is responsible for transmitting the output rotation of the engine to the rotating motion of the hydraulic pump, and then, finally, output to the driveshaft and ball guide.


5. What is the role of piston shoe in excavator hydraulic pump parts?


Excavator hydraulic pump parts piston shoe is a hydraulic pump part, which is used to help the cylinder transfer work. It is used to activate the pneumatic and hydraulic systems. Piston shoes are wearing blocks that limit how a piston rod may slide through a piston-cylinder bore.


There is a spindle connecting the piston shoe and the cylinder block. The piston shoe uses double-sided sealing rings to transfer power to operate the machine. The ring must be replaced when it wears out and requires replacement with a new one.


The piston shoe pretends to be the main driving component of the piston rod. The engine of the excavator compresses oil under pressure and sends it to the hydraulic machines.


6. What is the role of the retainer plate in excavator hydraulic pump parts?


Excavator hydraulic pump parts Retainer plate is one of the main components of hydraulic pumps. It is a carrier bearing for high-speed rotation to ensure that the actual variable displacement of the pump at work. So, if we want to prolong the life of excavator hydraulic pumps, retaining plate is an important part we need to pay attention to.

Role Of The Retainer Plate In Excavator Hydraulic Pump Parts

Retainer plate is a kind of hydraulic element made from H200 high-quality steel coated with chrome. It will be installed into an excavator pump in the position of the pump base plate, and it has a function in sealing and protecting the pump base.


7. What is the role of a ball guide in excavator hydraulic pump parts?


A ball guide is an essential component if the machine is used for a long time. Excavator hydraulic pump parts use ball guides to direct the movement of inlet and outlet oil film rotation and ensure that the rotation center of the drive shaft enters the valve seat with an optimum fit.

Role Of Ball Guide In Excavator Hydraulic Pump Parts


If the ball guide is not correct, then the drive shaft rotates outside the valve seat, which may cause leakage and even lead to severe consequences. Ball guide is made by casting, milling, machining.


A ball guide serves two functions in an excavator. First, it eliminates excessive friction between the driveshaft and the ball plate during operation, and second, it protects the pump shaft from damage.


8. What is the role of the press pin in excavator hydraulic pump parts?


Press pin is an essential part of excavator hydraulic pump parts. Press Pin is the rod size of the width 15mm, with a pair of C-type press pins and an L-type press pin are made from stainless steel. The role of the press pin would be to ensure that the two hydraulic pistons in the cylinder block will not go through escape soon when working.


While C-type pins function under normal loading conditions, they may fail under excessive pressure or high-speed working. L-type press pins have a larger contact area and provide better support for the pistons in extreme conditions. Press pin is a small but decisive component in excavator hydraulic pump parts, so it should be installed and replaced very carefully.


9. What is the role of coil springs in excavator hydraulic pump parts?


Coil spring is the most crucial part of excavator hydraulic pump parts. It can reduce the vibration of the joint frame, and it also can bear the radial pressure from both ends. The spring maintains a constant force throughout this process, unlike a simple spring.


Coil springs are one of the most commonly used mechanical devices. They’re made from a tightly wound spring metal, almost always rod-shaped. The primary function of the springs is to reduce shock loads.


In an excavator hydraulic pump parts, a coil spring is used on the movement of the spool valve plate to reduce the shock produced from the direction of pipe connection, allowing the valve plate to operate smoothly.


10. What is the role of the valve plate in excavator hydraulic pump parts?


The valve plate is made of work-hardened steel, through the coating or processing, to meet the wear resistance, pressure resistance, and acid and alkali corrosion resistance requirements of materials. It is its job to control the flow of fluid in the cylinder pump parts.


I was matched with the two metal seats on both ends of the valve body, installed on both ends of the hydraulic pump drive shaft hole in the cylinder block. The valve plate is one of the essential parts in the excavator hydraulic pump, this type of plate can be used in the piston of the excavator smoothly and circulate the hydraulic oil.


11. What is the role of the snap ring in excavator hydraulic pump parts?


A snap ring is a small piece of metal used in mechanical engineering to prevent two other concentric circular parts from moving in opposite directions from separating too far. A snap ring is a simple but essential part of the excavator hydraulic pump system. It is used in the hydraulic cylinder, and it lies in the cylinder bore.


Its most important role is in preventing the rod and piston from sliding back and forth in the cylinder bore. Snap rings are made of metal with a circular cross-section hole and a U-shaped groove in the inner diameter. They will fit into the groove and prevent the rod from moving in or out of the cylinder bore by checking into the tracks at each end of the piston rod.


12. What is the role of shoe plates in excavator hydraulic pump parts?


The shoe plate is the main component that connects the cylinder block and power housing. The shoe plate is mainly used to connect the upper and lower excavator hydraulic pump parts as well as the cylinder block and power housing.


This is an essential part that helps reduce the energy lost from leakage after it’s well-adjusted. The shoe plate is often directly connected to the end of the cylinder block to make up for different excavator main pump parts involving driving force variation. The primary function of the shoe plate is to support the pump cover, and it can be fixed the hydraulic oil cylinder through its axle slot.


13. What is the role of bearing in excavator hydraulic pump parts?


Bearing is one of the essential parts of a machine, and it is mainly used in the structure of the machine’s main transmission and is at the core of the machine’s smooth operation. Bearing provides rotation to the critical parts of the pump in different ways. The approach is also called friction component or mechanical seal.


The type of bearings used in pump parts includes ball bearing, cylindrical roller bearing, bush, and other bearings. The bearing of the whole part should be selected following the specific conditions of the excavator, such as temperature, pressure, load, speed of rotation, and working environment.


14. Why import excavator hydraulic pump parts from China?


Chinese manufacturers or suppliers of excavator hydraulic pump parts are exceptionally reliable and affordable. This is the main reason for the importation of excavator hydraulic pump parts from china. The process of importing excavator hydraulic pump parts from China is simple. The first thing is to research the most affordable and reliable supplier.


Make sure the reliability and affordability by reading customer reviews on their social media or website. Once you are satisfied, then place an order and check out. Your excavator hydraulic pump parts will reach out to you at the given home address. Chinese suppliers also offer you an option to explicitly purchase custom-made pump parts depending on your budget and machine model needs.


15. Is friction associated with excavator hydraulic pump parts?


Yes. Friction is one of the significant parts of an excavator’s hydraulic pump. If the conflict is excessive, then it will cause leakage in the hydraulic system.Optimum friction is necessary to carry out the successful operation of your excavator. The clash that exists in excavator hydraulic pump is as follows:


The kind of friction that is important in this application is kinetic friction since we’re talking about moving parts. You may also have static friction to help hold the parts together when the system isn’t working. It is essential to keep static friction at an optimum level; exceeding the story will cause your excavator hydraulic pump to become faulty.


16. What is the role of seal in excavator hydraulic pump parts?


Sealing plays an essential role in excavator hydraulic pump parts. It has the role of preventing the leakage of oil from the main pump chamber. Seals are necessary for anti-freezing, anti-leaking, and anti-blindness. Usually, there are two kinds of seals on an excavator main pump.


One is the outer seal, as its name shows, it is located in the outer side of the cylinder block; another is the internal leakage preventing seal, which discovers between the driven shaft and cylinder gasket. The seal function prevents corrosive external air and foreign particles, including dust, dirt, or debris, from entering the pump. If the seal fails, it will cause the hydraulic pump to leak, affecting the excavator’s work.


17. What do you mean by hydraulic lines in excavator hydraulic pump parts?


Hydraulic supply lines, also known as lines or hoses in excavator hydraulic pump parts, are an essential part of a hydraulic system. Hydraulic lines include the feed line, suction line, hydraulic oil tank, and hydraulic pipe. These pipelines are responsible for supplying pressurized fluid to hydraulic pumps and actuating cylinders at the desired flow rate and pressure.


This is usually done through a tube made from steel. It has several ends on it to be attached to one or more pieces/parts and still transmit the fluid through to a hole on the other end.


If hydraulic fluid is leaking from any of your excavator’s hydraulic lines, it is essential to replace them as soon as possible to prevent hydraulic damage to the machine.


18. What do you mean by the Hs code of excavator hydraulic pump parts?


Harmonized System (HS) is a code used by international trade organizations to classify goods. It allows customs to identify and track shipments around the world. Every good or service is now assigned an international customs code to facilitate proper clearance. Your product will be listed on the commercial invoice a client receives when placing an order with your business.


The Hs Code consists of 6 to 10 digits, and it also provides help in maintaining the inventory stock and prevent you from running out of stock for a particular product. This is where you indicate the HS code previously assigned to your product. Without this information, your business won’t calculate applicable taxes and duties when importing products to countries that use a different classification system.


19. Can I get excavator hydraulic pump parts on sale?


Yes, you can get excavator hydraulic pump parts on sale. You can get it on sale either from online stores or from local offline stores. The word sale exhibits that you have to pay less price as compared to usual on local days. Some suppliers of excavator hydraulic pump parts provide sales on special occasions or local holidays.


While purchasing excavator, hydraulic pump parts, make sure to cross-check and avoid compromising affordability and reliability for a cheap cost. Different excavator hydraulic pump parts manufacturers provide other fractions or percentages of sale amount on various hydraulic pump parts. It is recommended to choose the lower fraction while purchasing excavator hydraulic pump parts on sale.


20. What is the role of the hydraulic pump in excavator hydraulic pump parts?


The hydraulic pump is a power assembly that is driven by the engine, creating hydraulic pressure. The pressure then moves through the primary hydraulic system to operate the boom, boom cylinder, hydraulic cylinder, bucket cylinder, excavator arm, excavator arm cylinder, and attachments. Hydraulic pump is the primary power source of all the hydraulic systems of excavators.


Excavator hydraulic pump is the heart of construction machinery. If your excavator hydraulic pump is out of order or faulty, then various hydraulic parts cannot generate power and make them non-operative. Hydraulic pump is the primary source that develops pressure essential for excavator hammer.


21. What is the role of the piston in excavator hydraulic pump parts?


The piston in excavator hydraulic pump parts is one of the main parts and also the most important. The piston is located in the cylinder block, which is between the driveshaft and pump cylinder. The drive shaft plays the role of transmitting torque and movement from the hydraulic motor to the pump cylinder to suck oil into itself and discharge it from its outlet port.


The piston has three leading roles in the hydraulic pump parts.

  • One is to regulate the amount of fluid that passes through the system,
  • The second is to act as a seal within the cylinder, preventing leakage, and lastly, once the fluid passes through the piston, it provides force (as it is forced back into the cylinder) which pushes an object against a surface.
  • This third role of pushing an object back against a surface is known as a shock load.

22. What do you mean by pressure created by excavator hydraulic pump parts?


First of all, excavator hydraulic pump parts can create different forms of pressure, such as low-pressure and high-pressure fluid flow. It is undeniable that when a hydraulic pump works, it will create a certain pressure.  This pressure is significant for the operational status of the whole machine. The pressure created by excavator hydraulic pump parts can be divided into mechanical and physical force.


Mechanical pressure is the power generated by the engine, finally driving the rotating shaft and then pumping by excavator hydraulic pump parts. The physical pressure is exerted on the material being excavated by a vibrating plate or cutting edge, which means that the greater the force of impact energy on a surface, the greater the pressure value.


23. What causes the failure of excavator hydraulic pump parts?


Failure of the excavator hydraulic pump parts directly affects the construction efficiency because the excavator hydraulic pump is one of the most critical components in an excavator; effectively involving its efficiency depends on how well it operates. Excavator hydraulic pump parts like the driveshaft can wear out and fail due to improper or harsh machine use.


Using the excavator with a worn-out drive shaft can cause severe damages and accidents. Also, the power cylinder block is a critical part of an excavator. The cylinders need to be regularly checked for internal damage and cracks and replaced at the first sign of wear or damage. The ball guide is another part that is crucial to maintain the proper functioning of an excavator.


24. What is the reason behind overheating in excavator hydraulic pump parts?


Excavator hydraulic pumps overheat mainly because of the following reasons. First, there is little lubrication on the seal rings and valve plate during the movement of the seals. The surface of the seal rings and valve plate wears and generates heat, which leads to overheating.


Secondly, in some excavators, the drive shaft tooth meshes are not in good condition. That is, they have worn and tear on them. This makes the transmission torque overload, and there is too much pressure on the drive shaft. The drive shaft transmits pressure to the seal ring or valve plate, thereby resulting in overheating.



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