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Frequently Asked Questions


Answers to the most common questions
FAQs about the MANUFACTURE, IMPROVEMENT and MAINTENANCE of the hydraulic cylinder
Do you manufacture custom hydraulic cylinders?
We make custom solutions that fit your application with specific operating parameters
Do you repair cylinders?

Yeah. Our engineers can provide a full diagnosis and will contact you to discuss all available options. More importantly, they can identify the best solution for your specific needs. And if applicable, our team offers recommendations on how to future-proof your cylinder performance. Above all, this saves costs and prevents further system downtime.

Is the installation of a hydraulic cylinder difficult?

It is very fast and our distributors and technicians will take care of the entire process with precision

What is sleeve lapping in a hydraulic cylinder and when should it be performed?

Liner lapping is an important process in the manufacturing and maintenance of hydraulic cylinders that is performed to improve the quality of internal surfaces, ensure proper sealing, and ensure optimal cylinder performance. It is carried out both in preventive maintenance situations and in repairs when necessary.
The sleeve lapping process is carried out in the following situations:

> MAINTENANCE: It is carried out as part of preventive maintenance of hydraulic cylinders to restore internal surfaces worn or damaged due to use and friction. This helps extend cylinder life and maintain optimal performance.
> REPAIR: When the liners of a hydraulic cylinder are seriously damaged or worn, lapping is necessary to restore them. This may be necessary after a failure or accident that causes damage to the inner surface of the cylinder.
> MANUFACTURING: During the manufacturing of new hydraulic cylinders, liner lapping is used to ensure that internal surfaces meet required design tolerances and specifications.

Is grinding and lapping on a hydraulic cylinder the same thing?

While grinding focuses on removing defects and achieving precise dimensional tolerances, lapping focuses on achieving an exceptionally smooth surface finish. Both processes can complement each other to obtain the best quality on the internal surface of the hydraulic cylinder sleeve, depending on the particular needs and specifications of the cylinder and its application.
• Grinding involves the use of a grinding wheel or grinding tool to remove material from the inner surface of the cylinder liner.
• The main objective of grinding is to achieve a smoother, more uniform and precise internal surface in terms of dimensions.
• Grinding is used to remove irregularities, scratches, excessive wear and other imperfections on the inner surface of the sleeve.
• It is done to restore the cylinder liner to its original tolerances or those specified in the design.


• Lapping, on the other hand, involves the use of a “pencil” or “lapping plate”, which is a cylindrical piece with an abrasive material on its surface, and is moved inside the cylinder jacket with pressure and lubricant.
• The main objective of lapping is to achieve an ultra-fine, polished finish on the inner surface of the cylinder liner.
• Lapping is used to remove small imperfections, roughness and further improve the quality of the internal surface.
• Often done after grinding to achieve a finer finish and better sealing quality.

How can the efficiency of a hydraulic cylinder be improved?

Efficiency can be improved by reducing fluid leaks through high-quality seals, using low-viscosity hydraulic oils, and optimizing cylinder design to reduce friction.

When to consider installing double-acting hydraulic cylinders?

Double-acting cylinders are used when force is required in both the forward and return strokes. They are ideal for applications that require precise control in both directions.

How should hydraulic cylinders be maintained?

Maintenance includes regularly inspecting gaskets and seals for leaks, cleaning the outside of the cylinder to prevent contamination, and checking the quality of the hydraulic fluid.

What is the typical lifespan of a hydraulic cylinder?

Lifespan varies depending on application and environment. Proper maintenance can extend service life, but in general, well-designed cylinders can last several years.

What to do in case of leaks in a hydraulic cylinder?

If leaks occur, defective gaskets or seals must be identified and replaced. It is also important to check for damage to the rod or outer tube that could be causing the leak.

Are hydraulic pistons and hydraulic bottles synonymous?

In the context of hydraulic systems, the terms “hydraulic pistons” and “hydraulic bottles” are not synonymous, although they are often related and used together.

Hydraulic pistons are essential components of hydraulic cylinders. They are elements that move within the cylinder jacket in response to the pressure of the hydraulic fluid. The movement of the piston is what generates the force or motion in a hydraulic application. Hydraulic pistons can come in various shapes and sizes depending on the application, but their primary function is to convert hydraulic energy into mechanical work.

The hydraulic bottle, sometimes simply called the “hydraulic cylinder,” is a fundamental part of a hydraulic system. It consists of a tube or housing that contains the hydraulic piston, sealing the space between the piston and the housing to create an airtight chamber. The hydraulic bottle is the structure that allows the piston to move back and forth within it under the influence of the pressure of the hydraulic fluid. The hydraulic bottle also includes accessories such as gaskets, seals, and fluid inlet and outlet ports.

To sum up, while the “hydraulic piston” refers specifically to the component that moves within the hydraulic bottle and does the mechanical work, the “hydraulic bottle” refers to the structure that houses the piston and facilitates its movement. Both terms are closely related in the context of hydraulic systems and work together to achieve a variety of industrial and mobile applications.

Process machining
Lathe / Milling Machine / Welding / Lapping / Assembly / Test Bench

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