The Most Heavy-Duty Excavator Fuel Pump in China Only at Xugong KS 

Xugong KS excavator fuel pump has been producing and distributing excavator fuel pumps for more than ten years. Our company always supply the most durable fuel pumps that would last for years. It is made with the most powerful and advanced technology available in China.

If you want to get the best excavator fuel pump, we can recommend you tons of fuel pumps that ready to be shipped out. Our excavator fuel pumps are easy to use and works with a variety of excavators.

The New and Improved Excavator Fuel Pumps

At Xugong KS, excavator fuel pumps are redesigned for efficiency. Several subtle improvements to the hydraulic system has made for greater output. The new and improved excavator fuel pump allows the engine to operate at the most efficient speed and provides better pickup and response to the operator’s demands.

Remember, the fuel pump is the heart where engine runs at a high speed. Our excavator fuel pump adjust the engine speed to a lower level to save energy and reduce fuel consumption.

24/7 Online Customer Support and After-sales at XuGong KS

Xugong KS aftersales continuously monitors hydraulic and other critical systems to assist preventive maintenance and troubleshooting for your excavator fuel pump. Just send an inquiry now, and we can surely help you with your assembly as soon as possible.

Other companies’ after-sales services disappoint you? You always wait for hours in the queue just to be annoyed and irritated in the end? And your issues with your excavator fuel pump were not solved at all? Not here with Xugong KS.  Just contact us through our 24/7 customer service, and we will assist you in choosing the best excavator fuel pump for your excavator.  We can provide you with the most accommodating and helpful support you have been asking for. We are just a click away from giving you the best products and solutions for your excavator needs.

Fast and Efficient Shipping at XuGong KS

If you send us an inquiry and order our excavator fuel pump now, we can pack and ship it immediately. No need to ask us about your order’s safety, your excavator fuel pumps are individually packed in wooden crates.  XuGong KS is partnered with the best shipping companies like DHL, TNT, FEDEX and more.

Plus, XuGong KS exports to more than 50 countries like American, Canada, Chile, Brazil, Mexico, UAE, Kuwait, Oman, Iran, Saudi Arabia, Thailand, Indonesia, and so on. We guarantee you we can ship your excavator fuel pumps.

Order new excavator fuel pumps from Xugong KS! High quality here in China to your construction doorstep!

Excavator Fuel Pump – The Definitive FAQ Guide

An Excavator Fuel Pump FAQ guide lists the most essential frequently asked questions regarding fuel pumps. The Excavator fuel pump is essential equipment in the excavator machine. No matter the good or bad working status of the fuel pump, it will affect the use performance of the excavator. This FAQ guide will provide you with in-depth information on components of an excavator fuel pump, materials used in making, features, and much more.

1. What is an excavator fuel pump?

An Excavator fuel pump is an essential component of an excavator machine. An excavator pump is a device used to draw fuel from the tank and direct it to the machine’s engine. The primary function is to ensure the flow of fuel at the right time and place, which is very necessary for engine lubrication.

The amount of fuel that these pumps are capable of transfer varies from model to model and manufacturer. There are different types of fuel pumps available. Some fuel pump has a working principle based on vacuum creation and utilizing the mechanically driven system. The system then pressurizes the fluid through hydraulic lines. You must need to select the fuel pump configuration and features based on your needs and applications.

2. What are the applications of an excavator fuel pump?

There are several uses of an excavator fuel pump. Some of the primary benefits are as follows: An excavator fuel pump can be used to provide power for the engine and provide fuel to the combustion chamber. It is a type of positive displacement pump where the amount of delivered volume depends directly on the amplitude of given pressure provided by the pump.

This type of pump may deliver maximum flow at lower maximum pressure, or it may provide maximum pressure at lower flow conditions. It helps driving hydraulic cylinders and ultimately multiple types of equipment of your excavator.

3. What materials are used in making an excavator fuel pump?

Excavator Fuel Pump construction requires using high-strength steel and aluminum alloys for most parts of the pump housing. Some other materials include rubber, plastic, PVC, which are mainly used in sealing components or impact bearing parts for the effective functioning of your excavator fuel pump.

Sand castings are used to cast the impeller, diffuser, and rotors out of wear-resistant metal, and proper welds and fasteners must be used to make the pump function properly. Despite their seeming simplicity, they deal with a lot of abuse. These pumps move gallons of fuel per hour and exert pounds of pressure on the input side, and they must withstand these pressures for as long as you operate your equipment.

4. What is the role of cam lobes in excavator fuel pumps?

Cam lobes are an essential element of your excavator fuel pump. The cam lobe is a fixed part of the cylinder head. The job of the cam lobe is to raise and lower the valves at appropriate engine speeds. The cam lobe does not work directly with an excavator fuel pump, but it must remain as in working order as possible.

Cam lobes thus control how much fuel is allowed to pass through the pump and out to the engine. Cam lobes, designed for each type of fuel pump, allow for different amounts of fuel flow capability and different kinds of fuel flow stroke length. Proprietary cam lobe technology is what distinguishes one fuel pump from another.

5. What is the role of circular fuel passage in excavator fuel pumps?

The role of circular fuel passage in the excavator fuel pump is that the fuel flows through the circular path into a small chamber with a spring-loaded check valve. The energy moves from this chamber through a larger opening to the pump.

When the pressure is low, oil from the pump flows back to the circular chamber, increasing its pressure. The circular fuel passage of the excavator fuel pump transfers diesel fuel from the fuel tank to the engine and makes sure that the pressure is optimized.

This passage is used to connect the fuel pump and the fuel filter. It is an assembly of pipes, valves, and filters. The circular fuel passage is the space inside the fuel pump, around the fuel pipe. It is designed to make sure that no air enters or leaves with the fuel. This prevents an airlock and enables the fuel pump to do its job: deliver high-pressure, clean fuel to your engine!

6. What is the role of distributor rotor in excavator fuel pump?

The distributor rotor, which also can be referred to as the distributor gearbox, is the device that helps the fuel to move into the combustion chamber. The rotor is located at the bottom of the fuel pump, and it works in tandem with other components within the excavator fuel pump to help move the gas.

The distributor rotor is an essential part of the fuel pump. Its working principle is that the distributor rotor could transmit and spread the oil to lubricate and cool down the pump axial shaft and endplates. Besides, it could also support the end plates turning to ensure that the pump will achieve regular running. This component’s necessary form of failure is fraying the oil film due to contaminant particles entering the pump casing or direct abrasion causing an oil film breakdown.

7. What is the role of leaf spring in excavator fuel pump?

The role of leaf spring in the excavator fuel pump is to be placed under the fuel pump guide plate, make the fuel pump swing with the pressure of hydraulic oil so that that fuel will go into the suction pipe, then through the filter to blow into the engine. It can store a lot of energy. A leaf spring is a spring made from one piece of strip steel. It performs a role as one of the essential parts of the fuel pump.

If a leaf spring is broken, then a complete pump will be useless. Because it should work with a spring, other than that, you can’t expect it to work. The leaf spring improves mechanical torque on moving parts within the excavator through its torsional stiffness.

8.  What is the role of inlet passages in excavator fuel pumps?

Inlet passage is an intake manifold for the fuel pump. The fuel from the fuel tank enters into this manifold through the inlet valve and is then distributed by fuel injectors to all cylinders through individual inlet passages. The inlet valve is positioned before the fuel injector for a balanced pressure system since it needs time to fill the fuel tank with fresh pre-pressurized fuel. And for the pressure-regulating system, the inlet valve is put after all of the fuel injectors because the pressure of the supply line will be higher than that of the pressure balance system.

Inlet passages are precision-engineered channels in the pump’s body designed to control the speed of the fuel flow into the machine’s fuel tank. This ensures that a constant volume gets pumped into the machine’s fuel tank, keeping pressure consistent and allowing the engine to monitor it for performance maintenance purposes properly.

9. What is the role of charging passage in excavator fuel pump?

The role of the charging passage in the excavator fuel pump box is to lead the fuel from the outside to the inside. If there is no charging passage in the fuel pump, you cannot send gasoline into it. The charging passage is an essential part of the excavator fuel pump. To achieve efficient running, there must be a fuel return passage for smooth flow of fuel from the cylinder back to the fuel tank.

By this, you could make sure that you can get a supply of enough fuel for a definite time duration. The primary way to ensure a stable supply is to regulate the pressure and cleanness of the fuel. Damage from corrosion, dirt and other impurities must be avoided as it could potentially lead to unwanted inflammations which might damage the engine or its accessories.

10. What is the role of the transfer pump in the excavator fuel pump?

A fuel transfer pump can perform a variety of functions depending on the intended application. They commonly exist in excavator applications where large quantities of fuel need to be delivered long distances to the operator’s fuel tank. This is accomplished through a dedicated fuel line and proper arrangement. However, it may also drive fluid into auxiliary equipment such as a hydraulic power pack.

The fuel pump in an excavator is vital because it provides the engine with fuel and keeps pressure running smoothly. The transfer pump boosts pressure from 2 to 10-psi and circulates it to the fuel supply lines.

11. What is the role of the metering valve in the excavator fuel pump?

The metering valve plays an essential role in the excavator fuel pump. It is typically installed on the suction side of the fuel tank. Its primary function is to control the under-pressure or over-pressure of fuel. The metering valve in the excavator system also ensures that your fuel is delivered in correct proportion to your engine, and it can be challenging to find one for sale.

The Metering valve used in the Fuel pump is specially designed for ultimate fuel efficiency and environmental control. They do not allow the fuel beyond the optimum limit to enter your fuel pump or to the engine. An incorrect metering valve can seriously hurt an excavator’s design, performance, and service life.

12. What is the role of the plunger in the excavator fuel pump?

The plunger is not much different from the syringe. This is one of the essential parts of the fuel pump. If it is broken, the work will all be gone. Some new excavators use a small mechanical lever instead of a spring relay to lock and unlock the plunger, and the spring relay plays a role in supporting this action.

The primary function of the plunger is to provide fuel to the engine cylinders. The piston in the plunger is pressed into the cylinder by hydraulic pressure. This retracts the plunger and the volume of fuel stored within it, creating high pressure in the fuel chamber. This, in turn, forces power up to the top-side of its enclosure, pressurizing the fuel tank, which in turn pressurizes the fuel lines.

13. What is the role of inner gear in the excavator fuel pump?

The inner gear is the main component of an excavator fuel pump. It ensures that fuel smoothly goes through the system and arrives at its destination (engine), guaranteeing constant fuel flow at all times. It also filters away any dirt or impurities, preventing them from getting into the machine. The inner gear of the excavator fuel pump can be changed according to the different demands of customers. Many types of internal gears are used in most engine systems today.

The inner gear is made of high-quality alloy steel, and the gear’s teeth run perpendicular to the rotation of the pump. This kind of gear is quite durable and needs less lubrication than standard gears. You can fix it in place on a shaft with a locking ring.

14. What is the role of the throttle shaft in the excavator fuel pump?

The primary purpose of the throttle shaft of an excavator fuel pump is to regulate the flow of fuel to the engine. As the gas pedal is pressed on the machine, the input shaft will rotate, sending power to the output shaft, thus creating the speed at which the gas is pumped through. Several factors can cause the throttle shaft to wear out over time, including the seals wearing out, debris getting inside, or merely wear and tear from use.

Any of these factors can cause the throttle shaft to begin rubbing on the other internal parts of the pump. This friction can cause tiny scratches on the surface of the stick. Over time, these scratches accumulate until they are large enough to allow foreign matter to penetrate the pump’s interior components. The result is that you end up with a fuel pump that is dirty and inoperable

15. What is the role of the tachometer shaft in the excavator fuel pump?

The significant role of the tachometer shaft in the excavator fuel pump is to rotate in conjunction with the rotation of the electric motor during the operation in a single direction in a particular frequency. This piece mainly controls the everyday work and performs a certain degree of swing movement by itself during the operation of the excavator’s machine to clear the working air gap and reduce the wear of certain parts. It plays a crucial role in the whole excavator. Its purpose is to connect the engine directly or indirectly to the rest of the hydraulic system or mechanical system with non-stop working synchronous.

16. What is the role of the pulsation damper in the excavator fuel pump?

A pulsation damper is used in pumps to protect against excess vibration, shock, and noise. A fuel pump itself doesn’t need this protection, except in some situations. The fuel pump for an excavator is under extreme load, with large amounts of fuel being transferred while still producing enough pressure to feed the entire system.

This can cause excessive vibration. This is where the actuator comes in – it is a particular device that keeps the pulsation damper in line with the rotary part of the pump. The pulsation damper is a set of mechanical vibration absorbers produced by SUS/carbon steel to be single-layer or multi-layer. It is installed in the axial direction of the fuel pump and is used primarily for the small displacement of the diesel engine.

17. What is the role of the main shaft in the excavator fuel pump?

The functional role of the main shaft is to connect all elements with stationary or rotating components. An excavator fuel pump connects the inner parts, such as the impeller, seal disk, and impeller holder. It also transmits the power from the motor with a seal disk. As a result, the fuel is transferred from the fuel tank with a high vacuum to a cylinder and put into a high-pressure state. The excavator fuel pump transfers over 90% of your fuel’s energy into the engine. The main shaft of the fuel pump is responsible for circulating and pressurizing the power through the injection systems and machines.

18. What is the role of seals in excavator fuel pumps?

The Excavator fuel pump is the heart of the hydraulic system, and seals play an essential role in the excavator fuel pump. Firstly, you should know what exactly we mean by “seal.”A seal is a mechanical device for securing a gas-tight joint. Usually made of elastomeric material, they are designed to withstand wear, chemical exposure, temperature extremes, and vibration.

Seals are commonly used between moving parts or rotating pieces to ensure that no fluid escapes or enters between them. They are used with hydraulic systems on excavators. The seals of the excavator fuel pump should be put at the average temperature (27-86 F). The sewage temperature shouldn’t be too low or too high, nor should it contain rust or acid.

19. What are the issues associated with the excavator fuel pump?

While fuel pumps are one of the most accessible parts of an excavator to complete, there are some key things that every owner should know to avoid failure. Some common issues that can inhibit the proper operation of an excavator’s fuel pump include poor temperature rating, harsh chemicals/dirt collection, improper rating on the fuel pump for flow, and vibration.

The issue could be a lack of power. If the fuel pump does not create enough pressure to feed the engine, it will not run. Leaking must also be considered. A leaking fuel line can cause a variety of problems. The fuel will run to places that it should not be. This will contaminate the engine with dirty energy, thus creating spark ignition problems.

20. What causes the failure of an excavator fuel pump?

Many causes can lead to a failure of a fuel pump. Mechanical parts in a fuel system may deteriorate over time. No matter how well they are made, a fuel system can’t last forever. For example, the rubber diaphragm in a fuel pump may deteriorate with age, causing it to become brittle and brittle, resulting in leakage.

In addition, dirt and contaminants may collect inside the fuel tank, affecting the equipment’s performance. However, many problems caused by the failure of the lift pump are sudden and significant. One of the most common problems is that the engine stalls during the operation of an excavator at high speed. This happens because the flow rate of fuel cannot satisfy the demand for engines.

21. What are the maintenance requirements of an excavator fuel pump?

One of the most important things to do is keep it clean and well maintained. A fuel system that doesn’t run clean can cause many issues, including poor performance and dire safety concerns. Every fuel pump has different maintenance requirements as needed and its own recommended frequency as to how often you will need to change some of the parts. These parts include seals or worn-out components.

You need to check if there is sufficient fuel inside. The absence of an optimum amount of energy will cause deterioration and damage. Inspect it before and after each operation to ensure each component is acceptable to avoid accidents.

23. What is the life associated with an excavator fuel pump?

The life of an excavator fuel pump is the duration of time that the fuel pump remains functional. Many factors can reduce or even eliminate this period. These include, but are not limited to, construction material used in the manufacturing of the fuel pump, number of times that it has been repaired, continuous power supply, level of care that the operator gives it during its operation, etc.

The frequency of usage also dramatically affects the life of your excavator fuel pump. If the type of excavator fuel pump contains high-quality materials, you will enjoy the longer lifespan of your excavator fuel pump.