A hydraulic cylinder is an industrial actuator that converts pressurized fluid energy into linear mechanical motion. It is the most critical component for force generation in heavy industry.
Basic force principle:
Example: 250 bar pressure and 100 mm piston diameter → approximately 19.6 tons of force. Therefore, correct diameter and pressure calculation is essential for system safety.
| Type | Standard | Advantage | Typical Use |
|---|---|---|---|
| Tie-Rod | ISO 6020/2 | Modular, compact | Industrial machinery, presses |
| Welded | — | High pressure resistance | Mobile equipment, heavy-duty |
| Mill-Type | ISO 6022 | Heavy-duty design | Steel production, mining, energy |
| Telescopic | — | Long stroke | Dump trucks, cranes |
| Custom Design | Project-based | Engineering adaptation | Process industry, special machinery |
Operating Pressure: 160 – 350 bar
Stroke Length: 50 – 6000 mm
Piston Diameter: 25 – 500 mm
Rod Surface Hardness: 20–25 micron chrome plating
Sealing Options: NBR, FKM (Viton), PTFE
Standards: ISO 6020/2, ISO 6022, NFPA, CE, PED
Pressure and force calculation (F = P × A)
Rod buckling analysis (Euler approach)
Duty cycle evaluation
Temperature range and corrosion class
Mounting type (flange, trunnion, clevis)
Consequences of incorrect selection:
Internal/external leakage
Rod bending
Premature seal wear
Pressure loss
Leading manufacturers and series in the heavy-duty cylinder segment:
Parker Hannifin: 2H, 3H, HMI, CHE, CHD, PQC series
Bosch Rexroth: Mill-Type Cylinders (ISO 6022)
Eaton: Tie-Rod Cylinders (ISO 6020/2)
Hydac: Telescopic solutions
Liebherr: Heavy-duty custom cylinders
Yeşil Grup Enerji supplies hydraulic cylinder solutions through its global sourcing network:
Europe: Germany, France, Italy, Poland, UK
Middle East: Turkey, Saudi Arabia, UAE, Qatar, Iraq
CIS & Central Asia: Russia, Azerbaijan, Kazakhstan, Uzbekistan
Africa: Algeria, Egypt, Nigeria, South Africa
Americas & Asia: USA, Brazil, China, India, South Korea
Cylinder type
Operating pressure
Stroke length
Piston & rod diameter
Seal type
Operating environment
Preferred brand/series (e.g., Parker 2H, Rexroth Mill-Type)
Yeşil Grup Enerji is not an official distributor of the mentioned brands. With a brand-independent sourcing approach, we provide original products, equivalent alternatives, and technical revision solutions.
Which industries use hydraulic cylinders? Steel production, mining, energy plants, mobile equipment, and process industries.
What is the most critical engineering criterion in cylinder selection? Pressure and force calculation (F = P × A) combined with rod buckling analysis.
Which information speeds up the RFQ process? Cylinder type, operating pressure, stroke length, piston & rod diameter, seal type, and preferred brand/series code.
What are the most common issues with incorrectly selected cylinders? Internal/external leakage, rod bending, premature seal wear, and pressure loss.
Which regions are covered by the global supply network? Europe, Middle East, CIS & Central Asia, Africa, Americas, and Asia.
Hydraulic cylinders:
Are the fundamental components of force generation in heavy industry
Provide solutions across tie-rod, welded, mill-type, and telescopic designs
Cover a wide product range with Parker, Rexroth, Eaton, Hydac, and Liebherr series
With proper engineering calculations and regular maintenance, system safety increases, energy efficiency improves, failure risks decrease, and operating costs are reduced
Correct cylinder selection is critical for safety and efficiency in heavy industry projects.
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