Trelleborg Hydraulic Cylinder Calculator: Size & Force

🔧 Trelleborg Hydraulic Cylinder Calculator

Calculate cylinder bore, rod diameter, extend/retract force, flow rate & cycle time — metric & imperial

Quick Presets
⚙️ Cylinder Parameters
📊 Calculation Results
⚠️ Safety Notice: Always apply an appropriate safety factor for dynamic and shock-load applications. Never exceed the rated working pressure of seals, hoses, and cylinder body. Verify all results with a qualified hydraulic engineer before commissioning.
📋 Cylinder Size Quick Reference
25–500
Bore Range (mm)
350 bar
Max Working Pressure
0.5 m/s
Typical Max Speed
≤3000mm
Standard Max Stroke
ISO 3320
Bore Standard
ISO 3321
Rod Standard
≥95%
Seal Efficiency (Turcon)
–40—+200°C
Turcon Temp Range
📐 Standard Bore & Rod Diameter Pairs (ISO 3320/3321)
Bore (mm) Std Rod (mm) Area Extend (cm²) Area Retract (cm²) Force @ 200 bar Extend (kN) Force @ 200 bar Retract (kN)
32188.045.5016.111.0
402212.578.7725.117.5
502819.6313.4739.326.9
633631.1721.9762.343.9
804550.2734.35100.568.7
1005678.5454.00157.1108.0
12570122.7284.23245.4168.5
16090201.06137.44402.1274.9
200110314.16219.23628.3438.5
250140490.87336.67981.7673.3
🧲 Trelleborg Seal Series Specifications
Seal Series Material Max Pressure (bar) Temp Range (°C) Max Speed (m/s) Friction Best Application
Turcon®PTFE Composite600–40 to +20015Very LowHigh-speed, low friction
Stepseal® 2KPTFE + PU400–35 to +1101.0LowHigh pressure cylinders
Glyd Ring®PTFE + NBR350–35 to +1201.0LowPiston sealing
Zurcon®Polyurethane400–30 to +1000.5MediumHeavy duty, abrasion resist.
Rimseal®PU / Rubber200–35 to +900.5MediumRod wipers/scrapers
Orkot®PTFE Composite250–200 to +2505.0Very LowBearings & guide rings
💧 Flow Rate Reference — Bore vs Speed (L/min)
Bore (mm) 50 mm/s 100 mm/s 200 mm/s 500 mm/s Pump Size Est. (kW @200 bar)
505.911.823.658.93.9 kW
639.418.737.593.66.2 kW
8015.130.260.3150.810.1 kW
10023.647.194.2235.615.7 kW
12536.873.6147.2368.224.5 kW
16060.3120.6241.3603.240.2 kW
20094.2188.5377.0942.562.8 kW
🏭 Common Hydraulic Cylinder Applications
Application Typical Bore (mm) Typical Pressure (bar) Stroke (mm) Rec. Seal
Excavator Arm100–160250–350800–1400Stepseal® 2K
Hydraulic Press160–250250–315200–800Glyd Ring®
Tipper/Dumper100–160150–2501000–3000Zurcon®
Forklift Mast50–80150–2501500–3000Turcon®
Agricultural Loader63–100200–280600–1200Zurcon®
Injection Moulding80–200280–400100–600Turcon®
Steering Cylinder32–63150–200100–350Rimseal®
Log Splitter63–100170–220400–700Glyd Ring®
💡 Rod Diameter Rule of Thumb: For standard duty, rod diameter should be approximately 0.56–0.63 times the bore diameter. For heavy or long-stroke cylinders subject to buckling, increase to 0.7–0.8× bore. Always check Euler column buckling load for strokes above 500 mm.
💡 Flow Rate Sizing: Required pump flow (L/min) = Bore Area (cm²) × Speed (cm/s) × 0.6. Add 10–20% for internal leakage, line losses, and simultaneous actuator use. Oversizing pump capacity reduces heat generation and extends system life.

Trelleborg Sealing Solutions offer a big selection of seals, made for various uses in hydraulic cylinders. Among the available products are polyurethane U-cup RU9 seals together with several other types. One finds also some fairly new models in that set for example the triangular elastomer-loaded Turcon Wedgpak and the spring-loaded Turcon Variseal.

Those seals are designed to handle the harsh conditions of hydraulic devices.

Trelleborg seals for hydraulic cylinders

The piston seals of Trelleborg aim to reach the best control of leakage. The design of them focuses on low friction, small size and easy fitting. This is important when one works with hydraulic cylinders, that need to move smooth and reliably.

Seals together with lubricants must work for good sealing in harsh hydraulic uses. Trelleborg own technology for managed lubrication, that considers the sealing from a broader view. Every part of the device helps the others, what results in less wear, better friction performance and more life of the products.

That way of approach alters the whole way of sealing systems, pushing them safer and longer lasting.

Also off-road vehicles use the Trelleborg Hydraulic Cylinder seals. A common example is the seal for hydraulic cylinders outside of highways, that requires its own conditions. Scrapers or wipers form another key part.

They remove dirt, fragments, metal chips and moisture from the piston rods, while they enter back in the cylinder. Like this one stops contamination reach the interior and cause crashes.

Contamination by oil in cylinders deserves attention. The kind of setting, to which the seal is exposed, and the model of used wipers or scrapers also our decisive factors. Makers of seals normally include advice in their catalogs for handling those themes.

From the engineering viewpoint, Trelleborg deliver the Hydraulic Systematic Calculator. It forms a simple tool, that backs design engineers in work with hydraulic cylinders, pumps, engines and tubes. The online calculator fits to estimate different values for cylinders, engines, pumps, presses and tubing.

It has a simple interface and delivers exact results in metric and imperial measures.

There is especially the Hydraulic Cylinder Calculator app. It helps in computation of surfaces and volumes of the cylinder, forces for extraction and retraction, movement speed and injection. The app follows the standards ISO 3320, ISO 3321 and ISO 4393.

It starts by means of input of the cylinder dimensions, including rod diameter, bore diameter, stroke, pressure and oil flow. It works for single-acting and double-acting cylinders, and it is free. The new app of Trelleborg aims to back engineers in choice of seals and in understanding of the difficult needs of hydraulic cylinder function.

The outputs of thoseresources are based on usual formulas for hydraulic systematic calculators, even so users themselves should check the accuracy of any information.

Trelleborg Hydraulic Cylinder Calculator: Size & Force

Author

  • Thomas Martinez

    Hi, I am Thomas Martinez, the owner of ToolCroze.com! As a passionate DIY enthusiast and a firm believer in the power of quality tools, I created this platform to share my knowledge and experiences with fellow craftsmen and handywomen alike.

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