What Are The Different Types Of Cylindrical Liners?

Cylindrical Liners

When considering the part of the engine for a vehicle, the cylinder liner is amongst the most crucial elements for the engine. Most people do not know, but the most efficient and professional companies, such as the Fabautoliners, make cylinder liners which are hollow cylindrical bores that will work as the enclosure.  visit here

In this, fuel combustion will take place. These are cylindrical products that you can remove and fit in the engine block. They will provide the surface for the piston for reciprocating internally and carrying out the compression

You can easily replace them when they wear out. Because of the critical movement of the piston during the operation, cylinder liners should be wear-resistant and resistant to corrosion.

Why Sleeve An Engine?

Many people do not know the reason behind using the cylinder sleeves. There are several reasons to sleeve the engines. The primary reason to do this is to either repair the cylinder bore or provide protection to it in the first place. 

Most people also use it to restore the specific bore size when the cylinder should be bored out to repair the cracked or damaged engine. Some engine builders will tend to overbore the cylinders to enhance the engine displacement. 

Diesel engines are usually more equipped with the cylinder liner than the gasoline engine, but it is also better to sleeve the gas engines. High-performance engines for diesel can create immense pressure within the bore. 

The pressure will be so much that it will practically damage the cylinders. Cylinder liners made for high-performance applications can significantly protect the engine from these severe pressures.

How Is Cylinder Liner Made?

These are usually made with the help of the centrifugal casting method. Manufacturers will heat grey cast iron in the induction furnace, and the manufacturers will take the melted metal to the centrifugal casting machine.

After this, the manufacturers will rotate the permanent mould constantly about its axis at high speed as it will cause the metal to distribute evenly around the die. As the impurities are less than iron, manufacturing companies will put them on the bore surface and remove them with the help of machining.

There are several types of cylinder sleeves that you can choose for your engine block. Let us understand some of the types of cylinder sleeves.

Types Of Cylindrical Liners

There are primarily 3 types depending on the cooling method. Let us look at different types of cylinder sleeves.

  • Dry Cylinder Liner

These types of liners are amongst the most common types. It can work under severe pressure and temperature, and cast iron and ceramic-nickel plating are top-quality materials.

This composition is usually associated with ceramic-nickel and cast iron compounds that can help the user with several features which cannot be achieved when using wet liners. The cylinder block equipped with the dry liners will be more durable than the counterpart, which is the wet liner. 

The dry liners are less thicker than the wet liners, and these are not in direct contact with coolant and yet still protect the piston from getting damaged and will keep the impurities away. You will be able to fit it directly against the cooling jacket wall in the cylindrical block. 

  • Wet Cylindrical Liners

These are of the same material as the latter. This type of sleeve will interact with the engine coolant directly to help it protect the piston. This type of liner comes with better heat dissipation and cooling than the previously mentioned product.

Wet liners are accessible with a cooling water space between the liner and the engine block, or they may also have integral cooling passages. In the wet liners, which usually do not have critical cooling passages, the liner will create the water jacket and the different jacket, the block part.

Typically, the combustion seal end of the liner comprises either the gasket under the flange or the fitted machine. The cylinder liner wall is supposed to be strong enough to withstand the pressure of the combustion. 

The good thing about this liner is that it is easy to make. The cooling will also be more efficient, and the longitudinal stress will be relieved because of the linear thermal expansion.

  • Finned Cylindrical Liners- 

This type of liner is of a unique moulding process. It comprises the wear-resistance, iron casting, and close-grained, which helps to ensure efficient cooling and long life. These are made explicitly for Air-cooled engines. These are commonly used in automobiles. 

The functioning of this liner is the same as the dry cylinder, but the cooling medium, in this case, will be air.

The heat dissipation of this liner will happen via forced convection with the fins attached to the surface. These are made and have high thermal conductivity.


These are some of the best types of liners that you can use for the engine block. Make sure to take the help of a professional as they can help you choose the most efficient product, which can be helpful in the long run. 


Please enter your comment!
Please enter your name here