Honed tube for hydraulic cylinder

Honed Tube

Honed tube is ready to use for hydraulic cylinder applications without further ID processing.

The honing process involves using abrasive polishing stones and abrasive paper to remove small amounts of material, to produce extremely precise ID dimensions and improved finishes. Honed tubing is ready to use for hydraulic cylinder applications without further ID processing.

Honed tube is well known as the best material to manufacture hydraulic cylinders. This is because honed tubes are the most critical materials for hydraulic cylinders. Honing is essentially a bore sizing and surface preparation process.

The most popular material of our honed tubes is carbon steel grade SAE 1020. And we also produce honed cylinder tubes in other materials such as SAE 1026, E355 and ST52.3, stainless steel and so on.

As the leading hydraulic cylinder honed tube suppliers, most of the factories can produce honed cylinder tubes in a wide range of metric sizes and imperial sizes. Here below is the typical size range of honed tubes.

Inside Diameter 32mm to 600mm; Imperial sizes equally.

Normally honed tubing is supplied in fixed length or random lengths, the max. Length of honed tube is 14 meters, sometimes even longer for special application purpose.

The specific size of a hone tube can vary depending on its application and the requirements of the user. Common sizes for hone tubes can range from small diameters like 1 inch (25.4 millimeters) to much larger diameters exceeding 10 inches (254 millimeters). The precise size you need would depend on the intended use, such as hydraulic cylinders or pneumatic systems, and the tolerances required for your application.

The tube size e quality of steel required for the project were not standard, so it had been necessary not only to manufacture the tube on customer’s specification, starting from a specific raw material tube but also to plan a peculiar manufacturing process.

honded tube

For example, also both left ends had been treated in order to let the assembly of the piece. It has to be stressed the importance of honing the left ends and the roundesses where the O-Ring is allocated since they impact dramatically on the system performance.

Honed tubes are used in a variety of industrial applications, primarily in hydraulic and pneumatic systems. Here are some common uses of honed tubes:

  1. Hydraulic Cylinders: Honed tubes are extensively used in hydraulic cylinders, which are essential components in machinery like construction equipment, agricultural machinery, and manufacturing machinery. The smooth inner surface of honed tubes reduces friction and wear, improving the efficiency and longevity of hydraulic systems.

  2. Pneumatic Cylinders: Pneumatic cylinders, used in compressed air systems, also benefit from the precision and smoothness of honed tubes. They are employed in various industries for tasks such as material handling and automation.

  3. Automotive Components: Honed tubes can be found in automotive shock absorbers, steering systems, and transmission systems. They provide the necessary strength, precision, and durability for these critical components.

  4. Industrial Equipment: Honed tubes are used in various industrial machinery and equipment, such as printing presses, machine tools, and injection molding machines, where precise and smooth movement is essential.

  5. Food and Pharmaceutical Industries: In environments where cleanliness and corrosion resistance are critical, such as food processing and pharmaceutical manufacturing, stainless steel honed tubes are employed to ensure the highest hygiene standards.

  6. Oil and Gas: Honed tubes are utilized in hydraulic systems within the oil and gas industry, including applications like drilling equipment and hydraulic control systems on offshore platforms.

  7. Aerospace: Precision-engineered honed tubes play a role in aerospace applications, including landing gear systems and actuation systems for aircraft.

  8. Marine: Honed tubes are used in marine hydraulic systems due to their resistance to corrosion in saltwater environments.

What is the purpose of honed tubes in hydraulic and pneumatic cylinder manufacturing?

Honed tubes serve the purpose of providing a smooth and precisely finished internal surface for hydraulic and pneumatic cylinders. These tubes are essential in cylinder manufacturing because they contribute to:

Improved Performance
The smooth internal surface reduces friction and wear, enhancing the overall performance and efficiency of hydraulic and pneumatic cylinders.

Seal Compatibility
The high-precision finish ensures proper sealing, preventing leaks in the cylinder system.

Strength and Durability
Honed tubes can be made from materials with high pressure resistance, ensuring the longevity and reliability of the cylinders.

Custom Sizing
Manufacturers can create honed tubes with specific dimensions to meet the requirements of various cylinder designs. In summary, honed tubes play a crucial role in optimizing the functionality, sealing, and durability of hydraulic and pneumatic cylinders.

What is a honed tube?

Honed tube is usually a CDS (Cold drawn seamless) steel tube or DOM (Drawn Over Mandrel) steel tube with inside diameter honed or skived &roller burnished, so honed tubing is with extremely precise ID dimensions and smoothly ID surface.

Honed tubes are broadly utilized to produce and repair hydraulic cylinders and pneumatic cylinders. So in many fields, the honed tube is called cylinder tube also.

Honed tube usually is produced by two main manufacturing process, which are honing process or skiving & roller burnishing process. The mother tube we usually use “Suitable To Hone” Cold Drawn Seamless Tubes. The process of the honed pipe is determined upon the dimension, mold available and the requirement of the customer.

honded tube
honded tube
honded tube
honded tube
honded tube
honded tube
honded tube


honded tube
honded tube

How to make hydraulic tube

The tubes surface finishing is NBK, where the tubes are phosphate and normalized which provides corrosion resistance. It is oiled inside and outside. Normalize process creates tougher metal product. During normalizing, metals will be heated at a high temperature, and it allowed to naturally cool back down to room temperature by exposure after heating. Metals that have been through this process are more formable, harder and ductile.

Pressure ratings of hydraulic tube

Allowable working pressures are calculated using as per DIN 2413 at normal temperature. The yield and tensile stress values utilize to determine the maximum allowable running pressure and wall thickness required. The tubes and pipes are delivered the actual yield and tensile stress values are verified from the true copy material certificates. Pressure reduction factors at various temperatures show below:

° C 
° F 
Rating Factor 

Hydraulic steel tube

Hydraulic steel tube is designed to convey liquid fluids to among hydraulics components, fittings, valves, flanges, and other tools. It is made of material E355 (ST 52.4) or E235 (ST 37.4). These two grades have different chemical composition. This helps to control the working pressure.

Chemical Composition (%) Carbon (C) Silicon (Si) Manganese (Mn) Phosphorus (P) Sulfur (S)
E355 (ST52.4) ⩽ 0.22  ⩽ 0.55  ⩽ 1.6  ⩽ 0.045  ⩽ 0.045
E235 (ST37.4)  ⩽ 0.17  ⩽ 0.35  ⩽ 1.2  ⩽ 0.045  ⩽ 0.045

Hydraulic tube is made according to DIN 2391/C (DIN EN 10305-1) or DIN 2445/2 (DIN EN 10305-4) standards and it is available in millimeters, inches outer diameter, and inches nominal bore size.

The honed tubes suitable for various kinds of Precision Mechanical Tube, Honed Cylinder Tubing and Hydraulic Cylinder, Construct use Multi Joint Tube, Steel Axis Pipe, Injection Machine and Robotic Arm.

Quality Standards

Seamless Honed Tubes (Steel) with a micro-finish and highly accurate in bore size within tolerance H7 or equivalent.

Grade: ST 52, ST52.3, CK45, E355, 16Mn, STKM13C, SAE1020, SAE1026, SAE1045

Size range

Honed Tubes are ready to use for hydraulic cylinder applications without further ID processing.


Tolerance standard

Different sizes of ready to use honed tube are available.

H7 H8 H9 H10
≦30 +0.021/0 +0.033/0 +0.052/0 +0.084/0
30 – ≦50 +0.025/0 +0.039/0 +0.062/0 +0.100/0
50 – ≦80 +0.030/0 +0.046/0 +0.074/0 +0.120/0
80 – ≦120 +0.035/0 +0.054/0 +0.087/0 +0.140/0
120 – ≦180 +0.040/0 +0.063/0 +0.100/0 +0.160/0
180 – ≦250 +0.046/0 +0.072/0 +0.115/0 +0.185/0
250 – ≦315 +0.052/0 +0.081/0 +0.130/0 +0.210/0
315 – ≦700 +0.057/0 +0.089/0 +0.140/0 +0.230/0

This will provide long piston seal life and prevent failure of the cylinder. The tube material is selected on the basis of application & working pressure.

The seamless tube for hydraulic cylinders, obtained from high quality cold drawn tubes, available in a wide dimensional range.

Carbon steel Hydraulic Cylinder Tubing is available with grades as below:

Stainless steel Honed tube can be supplied in grades as below:

Other steel grades of hone tube /honed pipe is available on customer’s request.

Advantages of Honed tube

Roller burnished tube

Roller burnished tube is a type of metal tube that has undergone a specialized finishing process to achieve a smooth and polished surface texture.

This process involves the use of precision rollers to apply pressure and polish the outer surface of the tube, resulting in enhanced strength, improved corrosion resistance, and reduced friction.

Roller burnished tube
Roller burnished tube
Roller burnished tube
Roller burnished tube
Roller burnished tube
Roller burnished tube

Precision rolled tube

Precision rolled tube is a type of tubing that is produced using a precision rolling process.

Precision rolled tubes are often used in applications that require high-quality and precise dimensional tolerances. They are commonly used in industries such as automotive, aerospace, and medical, where accuracy and consistency are crucial. These tubes can be made from various materials including stainless steel, aluminum, copper, and brass. They can also be produced with specific mechanical properties, such as high strength or corrosion resistance, to suit the specific requirements of the application.

Precision rolled tube
Precision rolled tube
Precision rolled tube
Precision rolled tube
Precision rolled tube
Precision rolled tube

Hydraulic cylinder tubes

Hydraulic cylinder tubes are precision-made hollow cylinders, typically constructed from steel or other high-strength materials, designed for use in hydraulic systems.

Hydraulic cylinder tubes
Polished inside

Polished inside

Well packing in wooden cases

Well packing in wooden cases

Hydraulic cylinder tubes play a crucial role in hydraulic systems and find applications in various industries:

  1. Hydraulic Cylinders: These tubes serve as the main component of hydraulic cylinders, providing the housing for the piston and rod assembly. They allow hydraulic fluid to act upon the piston, generating linear motion.

  2. Construction Equipment: Hydraulic cylinders are used in construction machinery like excavators, backhoes, and bulldozers for tasks such as lifting, digging, and pushing.

  3. Manufacturing Machinery: Hydraulic cylinder tubes are integral in manufacturing equipment, including presses, injection molding machines, and metal forming machines, where precise control of force and motion is essential.

  4. Agricultural Machinery: They are employed in agricultural equipment such as tractors, combines, and plows for functions like raising and lowering attachments and steering.

  5. Material Handling: Hydraulic cylinders play a vital role in material handling equipment like forklifts and conveyor systems for lifting and transporting goods.

  6. Aerospace: In aircraft, hydraulic cylinders are used in landing gear, control surfaces, and cargo loading systems.

  7. Marine: Hydraulic systems in ships and boats utilize hydraulic cylinders for steering, stabilizing, and other operations.

  8. Mining: The mining industry relies on hydraulic cylinders for equipment like drills, loaders, and crushers.

  9. Automotive: Hydraulic cylinders are used in various automotive applications, including convertible top mechanisms, power steering systems, and brake systems.

Piston rod

A piston rod is a component in a piston-cylinder arrangement used in various mechanical systems, such as internal combustion engines, hydraulic cylinders, and pneumatic cylinders.

Piston rod
Piston rod
Piston rod
Piston rod
Piston rod
Piston rod

It is a cylindrical rod that extends from the piston and connects it to the crosshead or the connecting rod in an engine or the piston in a hydraulic or pneumatic cylinder.

In an internal combustion engine, the piston rod connects the piston to the crankshaft, converting the reciprocating motion of the piston into rotational motion of the crankshaft, which drives the engine's operation.

In a hydraulic cylinder, the piston rod extends and retracts to move the piston inside the cylinder, converting hydraulic pressure into linear mechanical force.

In a pneumatic cylinder, the piston rod is similarly used to extend and retract the piston, converting compressed air pressure into linear mechanical motion.

Piston rods are usually made of high-strength materials like steel to withstand the forces and stress encountered during their operation. They are crucial components in many mechanical systems and play a vital role in converting energy and transmitting motion in various applications.

Galvanized Hydraulic Tube

Galvanized Hydraulic Tube

Galvanized Hydraulic Tube

Galvanized Hydraulic Tube

A galvanized hydraulic tube refers to a hydraulic tube that has undergone a galvanizing process.

Din2391 Galvanized Hydraculic Precision Steel Tubes Synopsis of Process Routing:DIN highly accurate, cold rolled and bright seamless steel tube is used as the tube to be galvanized. The outer wall of tube is electroplating.

Zn-Coated Seamless Steel Tubes

When producing galvanized steel tubes, we use no-oxygen furnace to annealed the tubes which ensuire the smoothness of the inner and outside surface.Both the inner and outer surfaces of the high precision steel tubes can be galvanized or Zn only coated to the outside diameter,giving the tube a high homogeneity and an excellent rust resistant performance.

Carefully inspection honed tubes

Our Hydraulic manufactures honed steel tubes and skived roller burnished tubes designed for use in hydraulic and pneumatic cylinders. Our products are known for their high quality and competitive prices. We offer both imperial and metric sizes to suit your specific needs.

Carefully inspection honed tubes befor delivery
Carefully inspection honed tubes befor delivery
Carefully inspection honed tubes befor delivery
Carefully inspection honed tubes befor delivery
Carefully inspection honed tubes befor delivery
Carefully inspection honed tubes befor delivery

【H】 Ceramic lined pipe

Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.

【H】 Cast basalt lined steel pipe

Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.

【H】 Ceramic Tile Lined Pipes

Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.

【H】 Rare earth alloy wear-resistant pipe

The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.

【H】 Tubes Erosion Shields

Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.

【H】 ASTM A213 T91 Alloy Tube

The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.

Ni-Hard Wearback Pipes Ni-Hard Wearback Pipes