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Xugong KS Got You The Most Suitable Excavator Cylinder

  • Same Day Delivery for Over 1,000 In-Stock Excavator Cylinders
  • Cover Major Excavator Brands Such as Komatsu, Hitachi, Kobelco, Hyundai, and More
  • Offers 25mm-1000mm Cylinder Sizes
  • Affordable, Best Quality, Fast Service
  • Warranty Assurance

XuGong KS Excavator Cylinder Quality Certification

  • ISO9001
  • KS CE
  • SGS
  • ISO 9001

Xugong KS Top Sales Excavator Cylinder

Excavator Cylinder For SK210-8 SK210-6E

Kobelco Excavator Cylinder, SK210-8 SK210-6E Arm/Boom/Bucket Cylinder In Stocks For Wholesales

Excavator Cylinder For Boom /Arm /Bucket

Excavator Cylinder, Boom /Arm /Bucket Cylinder For Various Excavators, Contact Us For a Quote

China Excavator Sany SY500H Excavator Cylinder

Sany SY500H Excavator Cylinder, Part Number 60248642 For Sale, In Stocks For Quick Delivery

Excavator Cylinder For Volvo EC480

Volvo Excavator Cylinder, EC480 Boom /Arm /Bucket Hydraulic Cylinders, Contact us For a Quote

Wholesale EX200 Excavator Cylinder In China

EX200 Excavator Cylinder Aftermarket Replacement, OEM Quality Standard With Affordable Price

Excavator Cylinder For Hitachi EX400

Excavator Cylinder For Hitachi EX400, Series of Hydraulic Cylinders Are Available For Fast Shipping

Excavator Cylinder For Volvo EC210BLC

Good Quality Volvo EC210BLC Excavator Cylinder With Low Price, Brand New Aftermarket

Excavator Cylinder For Komatsu PC300-7

Durable Komatsu PC300-7 Excavator Cylinder For Repair, Hydraulic Seal Kits Also Available

Excavator Cylinder Hydraulic Arm Cylinder

Various Excavator Cylinder Hydraulic Arm Cylinder Wholesale, High Quality With Long Warranty

Why Xugong KS is Your Major Distributor Of Excavator Cylinder?

Xugong KS provides you the most suitable and efficient excavator cylinder. Available excavator cylinder for excavator arm cylindersExcavator Arm Cylinder, excavator boom cylinders, and excavator bucket cylinder. Xugong KS excavator cylinders replace by major brands excavators such as HITACHI, KOBELCO, DOOSAN, VOLVO, HYUNDAI, KOMATSU, and a lot more.

You can order a new, OEM, or aftermarket excavator cylinder. Call us now!

excavator hydraulic cylinder vedio cover(

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TM40 Excavator Final Drive
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OEM No. TM40 Final Drive For 19-25 Tons Excavators
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XuGong KS Excavator Cylinder Factory Overview

Are You Looking For a Best Excavator Cylinder Supplier?

With the amount of work in high pressure and extreme conditions. The Excavator cylinder function degrades as time pass. This excavator cylinder takes a lot of abuse and you need to watch out. When the excavator cylinder fails most will be affected and it needs to be replaced. Look for the best excavator cylinder supplier to save time and money. And that’s why Xugong KS is here for you!

With over 12 years in the industry field. Xugong KS will provide you the excavator cylinder you need for the bucket, boom, and arm of your excavator. Free to reach us about the exact size of the excavator cylinder that you are looking for. We have covered most of the sizes of excavator cylinders. As the working condition such as temperature, capacity, etc. are very critical. You can share it with us along with your excavator model no.

In that way, our sales team will have a standard basis to make sure that the excavator cylinder we offer will fit very well. Various components of the excavator cylinder are also available if you want to rebuild it. Such as cylinder barrel, piston, piston rod, seals, etc.

At Xugong KS, we value your time and money. Once you request a quote, in just 5 days of the process you’ll have your excavator cylinder or its parts for fitting. These are affordable excavator cylinders that have the best quality. What are you waiting for? Get your excavator cylinder now!

Excavator Cylinder – The Definitive FAQ Guide

The Excavator Cylinder FAQ Guide is a quick tool that serves as an answer to most questions about the cylinder that you would ever have.

This excavator cylinder FAQ guide compilation of answers about the life of excavator cylinder, maintenance requirement, cost, types of excavator cylinder, and much more.

This FAQ Guide is an excellent resource for those looking to purchase or maintain an excavator but who do not have the background knowledge to understand the terminology fully.

1.    How Long Does Excavator Cylinder Last?

Excavator cylinder lifetime depends on several factors, including the model and size of the machine you use, how frequently you use, what precautionary measure you follow, and material used in the construction of the excavator cylinder.

The life of these machines usually resides in the range of 2 to 15 years and approximately 2500,0000 cycles per year.

On average, an excavator will require a piston change in about five years.

This would be with normal usage conditions and no significant changes in the hydraulic system.

The life of an excavator also depends upon environmental factors, humidity, dirt, and grit, which reduces its life if not handled with great care.

2.    How Do I Know If My Excavator Cylinder is Bad?

Excavator cylinders are complex, but a visual inspection can give you an idea if the cylinder is likely to last or not.

When looking at used excavators with hydraulic cylinders, there are a few simple signs to look for.

These signs indicate that your excavator cylinder is not working correctly or may need to be replaced or repaired.

These indicators are listed below:

  • A strange noise is coming during the operation of your excavator cylinder.
  • Your Excavator cylinder has started to judder.
  • The amount of power consumption has increased suddenly.
  • The excavator cylinder’s automatic transmission starts to slow down.
  • The Excavator cylinder’s temperature gauge is reflecting too high working temperature.
  • There is slight wear on the piston rod.

3.    How Many Types of Excavator Cylinders Are There?

There are several different types of excavator cylinders. Each cylinder type has specific functions and features.

These types are listed below:

Bucket Cylinder:

The quick coupler allows a mounted accessory to move. It may be a bucket or another addition.

Lift Cylinder:

One of the main objectives of the lift cylinder is to assist the arm and help provides the vital force with lifting the material.

Arm Cylinder:

Arm cylinder, as its name implies, allows the excavator to move and to set how the object is to be excavated.

The positioning of these cylinders may vary according to the type of work needed to be performed.

Suspension Cylinder:

The suspension cylinders come in pairs, one on each side, and are used to dampen the oscillations of the excavator frame.

They are added to the system to slow down the movement of the excavator frame.

Steering Cylinder:

Enable you to control the direction of the excavator.

4.    How Do I Know What Size Excavator Cylinder to Buy?

Several factors affect the choice of an excavator cylinder.

These factors include the load, shape of the load, bore and rod size of your cylinder, and cushions.

Weight of Load:

First of all, determine the amount of weight you want to lift or move.

For instance, A One-ton load moving against an upwards force will require more than one ton of force to move.

However, if you’re pushing a stone across the ground, you will only need to overcome the friction between the ground and the rock and the acceleration of gravity.

Position of Load:

Determine the position of load needed to lift or move.

Most people think that the load is the weight of a person or an object, but actually, the force is the force required to lift that load.

The distance from where the load is lifted to where it is placed on the fulcrum affects how much force is required to lift the load, and this is why “lift” is expressed as force per unit distance.

Size of Bore:

After determining the force on a cylinder, you can easily calculate bore size.

The formula used to calculate the size of a piston that will produce a given force in a cylinder is as follows:

Force = Pressure x Area.

Size of Rod:

The smaller rod should be used where there are fewer pressure requirements, and the enormous rod should be used for maximum fatigue life and reliability.


Cushion-equipped piston assemblies are recommended for high-speed piston rod impact in the cylinder.

Cushions are not necessary and can be supplied on both ends of the cylinder as required. The use of cushions has zero impact on cylinder dimensions or assembly mounting.

5.    How Do You Measure Excavator Cylinders?

The procedure used to determine the size of the excavator is described below:

The piston diameter is a measurement of the inside barrel of the cylinder. It is best to measure this first before calculating the outside diameter.

Excavator Cylinders

If you remove the cylinder from your engine, measure either the diameter of the passage inside the barrel (cylinder tubing) or determine the piston diameter. They both are regarded as the same.

This is how the diameter of the cylinder is measured for determining the bore.

If the cylinder is installed on an excavator, you should measure the inner diameter of the cylinder and take the difference of the thickness of both walls to determine the bore.

6.    How Do Double Acting Excavator Cylinders Work?

A double-acting cylinder uses a cylinder that has two ports, one at each end. As the high-pressure air comes through the appropriate port, the piston moves forward and back.

Air pressure is simultaneously applied to the piston’s end so that it alternately moves up and down.

Double-acting excavator cylinder

There is equal coverage of the piston’s surface area by a piston of similar size on one side of the cylinder head and another identical rod on the opposite side.

In this case, there is no force difference between the two sides of the cylinder.

7.    What is the Stroke of Excavator Cylinder?

The stroke is defined as a distance that a piston moves in a cylinder, measured from fully open to fully closed.

Stroke of excavator cylinder

You often hear people who talk about a 30-inch cylinder, and they should be referring to the dimensions of the cylinder itself.

A 30-inch cylinder can lift or move something that is 30 inches tall, but it won’t necessarily lift or move items of a different size.

8.    How Do You Select Excavator Cylinder Seals?

Excavator Cylinder seal selection is a critical decision because there are numerous seals for excavator cylinders. You need to ensure you get the right ones for your application.

They determine the amount of hydraulic fluid flowing inside the cylinder, so essential to installing new ones.

When selecting the proper seal kit for a cylinder, you need to make sure that you know the unit’s unique conditions.

Some of these conditions are listed below:

  • The fluid type to be used (water, oil, etc.)
  • The system pressures
  • The operating temperature ranges
  • The volume of fluid being processed
  • The degree of contamination
  • The required service life for the seal.

9.    What is the Use of Excavator Cylinders?

Excavator Cylinders are cylinders (cylinder body) that are used to encase hydraulic pistons, which pump pressurized hydraulic oil.

Excavator Cylinder is used to power hydraulic systems that offer ease-of-use and extrude labor requirements.

The primary function is to push or pull various attachments (bucket, blade, breaker, etc.) attached to the end of the boom.

Excavator cylinders are commonly used on excavators and backhoes (trencher, scraper, aerial lifts, forklift/carrier), cranes (derrick, truck crane, crawler crane), loaders, and some drill rigs (crawler drills).

They are also widely used in various industries, such as construction machinery, mining machinery, forestry machinery, vehicle, thermal power, shipbuilding industry, agriculture, and other fields.

10.      What Material Are Excavator Cylinders Made Of?

Excavator Cylinders are made of various materials depending on the type of machine they are used for.

Excavator Cylinders are made of alloy steel. Alloy steel has a high degree of hardness which is needed to endure severe operation conditions.

Lower-speed machines and excavators often have open hydraulic cylinders. They are made of high carbon Steele, where hydraulic fluid can flow right over the cylinder body.

However, most modern machines have enclosed hydraulic cylinders that are usually made of aluminum.

These machines require heavy-duty components that can withstand constant and rough use while operating rugged equipment.

11.      Why Do Excavator Cylinders Fail?

Excavator cylinders are prone to several difficulties.

Some of the most common failures for a cylinder on an excavator involve cylinder rod, head, rod packing, seal kit, and hydraulic fluid.

Excavator cylinders are in danger of failing prematurely due to mechanical vibration and the use of cheap hydraulic fluid.

Excessive load, improper operating conditions, and wear and tear are also causing failure.

When your excavator cylinder fails, it will no longer be able to raise, lower, tilt and rotate your machine.

12.      Can Excavator Cylinders Be Repaired?

Yes! Cylinders can be repaired.

Whether the internal components have been worn through or there is damage to the external housing due to an accident or normal wear and tear, you can get it repaired.

Generally, it’s assumed that once an excavator cylinder has sprung a leak or cracked and requiring cylinder sealing kits, it is considered gone forever.

This is not always the case.

Cylinder repair can be performed by contractor personnel or machine shops with highly advanced machinery and skills.

In any event, if you have an excavator cylinder that is leaking because of poor maintenance, a trained professional should be able to detect the cause and make the proper repairs.

13.      Why Do Excavator Cylinders Leak?

When water enters through the cap seal and collects in the bottom of the cylinder, it causes hydraulic fluid to leak out of the cylinder rod.

Leaking hydraulic fluid can be caused by a damaged cylinder component—such as damaged piston packing—or incorrect operating conditions that cause high temperatures inside the cylinder—such as overloading the machine or not allowing sufficient time for hydraulic fluid.

Excavator Cylinders can leak or be faulty due to poor quality control or improper operation.

A leaking Excavator Cylinder could lead to severe injury or death of a person.

When working on an Excavator Cylinder, always be cautious and aware of the directional flow of hydraulic fluid.

14.      What Causes an Excavator Cylinder to Bend?

Excavator cylinders have to cope with heavy loads while they are digging. When you are doing this, there is a lot of stress on the cylinder.

The extreme pressure and heat of mining can make an excavator cylinder bend or become damaged if it’s not taken care of properly.

The cylinder might bend due to the amount of wear it takes from loading and unloading.

The common problem of excavator cylinder bending can be attributed to overloading the boom, improper use of the equipment, or outdated hydraulic equipment below current ANSI requirements.

15.      Can You Test an Excavator Cylinder with Air?

The answer is yes. While it may seem counter-intuitive to test an Excavator Cylinder with air instead of hydraulic fluid, it is a good choice.

Many excavator cylinders need to be tested to ensure their safety before use on a project.

Testing an excavator cylinder is typically done with air in the cylinder to ensure that the seals between the piston and cylinder are intact.

If you find that seals are not working well with this test, it is recommended to replace them with new seals.

16.      Can Excavator Cylinders Get Air Locked?

Yes, excavator cylinder heads can get air locked. Airlocks are sometimes caused by a broken piston ring or bent rod.

When a pressurized mixture of oil and air is compressed in an excavator cylinder, air will be drawn into the cylinder past its seal.

No hydraulic seal will hold back a gas if the system is pressurized. If the cylinder is mounted vertically, a few milliliters can get some air trapped in it for a little while before it comes out the other end.

17.        How Do You Bleed Air from An Excavator Cylinder?

The steps to bleed your excavator cylinder is given below:

  • Get all the nip and tuck supplies and tools you will need to disassemble a hydraulic system completely. Take plenty of clean hydraulic fluid, as well as a collection of empty bottles.
  • Make sure to work on an even surface so that the air bleeds evenly.
  • Keep away the barriers that would allow you access to the hydraulic lines.
  • Let the lines closest to the pump bleed first.
  • The lines furthest from the pump must be bled in order until both strings are clear.
  • Make sure your hydraulic system is filled with fluid. If the system runs dry, the air will supply it, and you will have to begin again.

18.        How Do Excavator Cylinders Work?

Excavator cylinders have a piston with a rod that extends from the center of it, which helps connect to the machine that utilizes it.

Excavator Cylinders are energy storing devices that use hydraulic pressure to generate force, allowing the machines to handle heavy loads and earth-moving tasks efficiently.

The cylinder body is designed to hold fluid and control its flow while allowing the rod to move reciprocally with the piston.

Excavator Cylinders are used to power various construction equipment, but there are often different elements needed for each machine that requires them.

19.      How Do You Replace an Excavator Cylinder Seal?

Excavator Cylinder Seal Kit allows you to replace the seals in your excavator cylinders.

It would be best to open the cylinder from the top end and bottom with the essential tools present in the kit.

Remove the broken seal parts from the cylinder or either from the rod or piston.

Now replace the worn-out seal with the new one.

20.      How Do You Control an Excavator Cylinder Stroke?

An excavator cylinder consists of a movable piston that can be retracted and extended to engage or disengage to control or limit the required power because of actuating element.

This will help controlling excess hydraulic fluid circulation and ultimately controlling an excavator cylinder stroke.

21.      How Much Excavator Cylinder Costs?

Excavator Cylinder cost depends on the make and model as well as the size of the cylinder.

The estimated costs of an excavator cylinder are about US$ 1,600.00 for a big company that offers hydraulic cylinders, and the cost can be reduced if you purchase from technicians or local manufacturers.

Usually, the cost of an excavator cylinder resides in the range of $200 to $2000, depending upon the material used in construction, size, and weight.

22.      Do You Need to Bleed Excavator Cylinders?

A positive displacement pump has a pump connected to the reservoir.

When the reservoir level goes down, the pump pulls more fluid from the reservoir into the pump.

When the reservoir level rises, the pump pushes fluid back out of the pump to refill the reservoir.

The problem arises when the air in the form of pockets enters along with fluid.

If your hydraulic cylinders are not bled regularly, they will cease to function efficiently.

This means that many problems, such as a lack of lubrication, may occur.

If you want your hydraulic system to remain in peak operating condition, it must be bled regularly.

23.  What is Column Load In Excavator Cylinders?

Column load and bending load are two types of loading that can cause buckling.

A column load is applied in the axial direction and induces buckling, while a bending bag is involved in an off-axis order and induces pure bending.

24.  Can I Import Excavator Cylinder from China?

Yes, you can import an excavator cylinder from China.

Chinese excavator cylinder manufacturers provide high-quality material at the lowest price.

An option exists to order custom excavator hydraulic cylinders.

You can order an excavator hydraulic cylinder in desired weight, material, and size just according to your needs.

One good thing about importing from China is that you can order as much as you want. There is no minimum or maximum order requirement.

Once you have placed your contact details, Chinese excavator hydraulic cylinder manufacturers always deliver on time directly to your doorstep.

25.  How Do You Fill an Excavator Cylinder?

You can fill an excavator cylinder by following the given steps:

  • Placed some used fabric beneath the excavator oil sump
  • Drain the old oil by placing a rough can
  • Now take the can of new oil and placed its hose onto the stocking of the oil sump
  • Raise the can to fill the oil completely

26.    What is the Maintenance Requirement of Excavator Cylinders?

Excavator Cylinder is a critical component, just like other parts of an excavator. All cylinders must be maintained regularly.

  • Check the condition of seals regularly.
  • Check the fluid level in your excavator cylinder.
  • Determine the temperature and pressure range so that it does not exceeds a specific limit.
  • Provide cleaning operation each time after usage.

27.  How to Install Hydraulic Cylinder in An Excavator?

Different cylinder types have other installation criteria depending upon their size and the model type.

General criteria to install the excavator cylinder is listed below:

  • Take your tool kit and make sure to have all essential tools
  • Remove all the nut and bolts and keep them aside highlighted
  • Now remove the cylinder and replace it with the new one
  • Now tight all the screws and make sure it is aligned and fixed

28.    How Do You Calculate the Force of An Excavator Cylinder?

Theoretically, the force output of a cylinder can be determined by multiplying the air pressure applied to it and the area of the piston exposed to it.

Force is measured in pounds, pressure in psi, and the area in square inches.

F = PA

29.  Can an Excavator Cylinder Explode?

Yes, an excavator cylinder can explode.

An excavator cylinder is filled with hydraulic oil containing lubricating agents that protect the metal from excessive wear and tear.

A leak in the hydraulic oil supply or a gasket has been allowed to become defective; the cylinders can become over-pressurized from insufficient oil flow and hot oil seeping into the cylinder body.

This type of over-pressurization is called Hydro-static Pressure Buildup, which ultimately leads to excavator cylinder explosion.

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