Chromed Bars - Tubes for Hydraulic Cylinders

Piston rods, chromed bars, H8-H9 honed tubes, ground bar and pressure pipes for the manufacture, repair and maintenance of hydraulic and pneumatic cylinders. Technomatic Group offers high-strength, European-origin materials with quality certifications, and can support the selection of the right dimensions, tolerances and technical characteristics for each application.

Rods and tubes for hydraulic cylinders

The Rod - Tube category includes essential materials for manufacturing and repairing hydraulic and pneumatic cylinders. Rods, chromed bars and honed tubes are critical components for a cylinder's strength, alignment and long-term operation, especially in applications subject to high pressures, loads and continuous operating cycles.

Chromed bars and H8-H9 tubes

At Technomatic Group you will find chromed bars and rods in various dimensions, for hydraulic pistons. These materials are used when precision, good surface quality, wear resistance and proper compatibility with the cylinder's seals are required.

H8-H9 honed tubes and chromed bars are selected based on internal diameter, tolerance, operating pressure, piston type and application requirements. The right choice directly affects the cylinder's performance and service life.

High pressure tubes and installation accessories

The range also includes high pressure tubes for hydraulic installations and materials that can be used both in new constructions and in repairs of existing cylinders. In many cases, replacing a worn rod, tube or pipe can restore a cylinder's function without requiring full equipment replacement.

The choice must be based on diameter, length, tolerance, surface treatment, load, pressure and operating environment.

Technical support for material selection

To select the right rod or tube, it is important to know the diameter, length, application type, operating pressure, surface-protection requirements and environment of use. Technomatic Group can support the selection of the right materials for every application, whether it concerns industrial equipment, machinery, vehicles or special constructions.

FAQ
What is a rod in a hydraulic cylinder?

The rod is the shaft that transfers the cylinder’s motion to the external load. It must have the correct diameter, alignment, strength and surface quality so that it works correctly with the seals and ensures smooth operation.

What do the H8 and H9 tolerances on tubes mean?

The H8 and H9 tolerances relate to the precision of the tube’s internal diameter. The choice depends on the application, sealing requirements, operating pressure and cylinder characteristics.

When is a chromed bar needed?

A chromed bar is used when wear resistance, surface protection and proper compatibility with the seals are required. It is a fundamental choice for hydraulic and pneumatic cylinders operating under load or in demanding environments.

Can rods and tubes be used to repair an old cylinder?

Yes. Rods and tubes are often used in cylinder repairs and rebuilds, when there is wear, leakage, low performance or mechanical damage to individual cylinder components.

What information is needed to request a quote?

Useful information includes the diameter, length, required tolerance, material, surface treatment, quantity and the application the product will be used for. A technical drawing, an old sample or a photo can significantly help with the selection.

Are rods and chromed bars available in different dimensions?

The choice is based on internal diameter, tolerance, length, operating pressure, piston type and sealing requirements. In high-pressure or continuous-operation applications, the right choice is especially important.

Is there technical support for selecting dimensions?

Yes, the Technomatic Group team can help select the right dimensions and materials based on the application’s technical requirements.

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