How to Choose a Hydraulic Cylinder? A Guide for Diameters from 50 to 125mm

Wondering which cylinder is right for your log splitter, Tur, or workshop press? Choosing the right diameter is key. In this article, we'll guide you through the most popular hydraulic cylinder sizes available at BRhydraulic.eu and suggest which one will provide the right power.

The hydraulic cylinder is the muscle of your machine. It converts oil pressure into a specific force that lifts, moves, or compresses. Our customers often face the dilemma: "Is an 80 mm cylinder enough, or do I need to buy a hundred?"

The answer depends on two factors: the pressure in your system and the piston's surface area . The larger the diameter, the greater the force, but (with the same pump) the slower the movement.

Piston or Rod? Don't confuse these dimensions!

Before we get into the review, let's explain the most common shopping mistake.

• Piston Diameter (Cylinder): This is the internal dimension of the tube. This parameter determines the actuator's FORCE . Commercially, when we say "80 cylinder," we're referring to the piston diameter.

• Rod Diameter: This is the chrome rod that extends from the housing. Its thickness determines its RESISTANCE to bending.

In the table below we discuss piston (cylinder) diameters.

1. Cylinders Ø 50 mm – Speed ​​and Precision

Small, but crazy. This is the smallest standard size in power hydraulics.

• Force (at 200 bar): approx. 3.9 tons

• Application: Power steering systems (C-330, T-25), seed drill marker control, flap opening, small orchard lifts.

• Who is it for? For those who need very fast action with low oil consumption. Ideal for auxiliary functions where high crushing force is not required.

👉 See Ø 50 mm cylinders at BRhydraulic.eu

2. Cylinders Ø 63 mm – The golden mean for light work

A compact size that offers noticeably more power than the "fifty" while maintaining high work dynamics.

• Force (at 200 bar): approx. 6.2 tons

• Application: Bale wrappers, grippers, support for heavier tractors (C-360, Zetor), opening industrial gates.

• Who is it for? An ideal choice if you're building a lightweight machine and have a pump with a capacity of 20-30 l/min.

👉 See Ø 63 mm cylinders at BRhydraulic.eu

3. Cylinders Ø 80 mm – King of Agriculture (Bestseller)

This is by far the most popular size in Poland. If you see a front-end loader (TUR) in a field, it likely uses cylinders of this diameter.

• Force (at 200 bar): approx. 10 tons

• Applications: Main lifting cylinders in front loaders, fast wood splitters (pressure 8-10 tons), tillage machines, snow plows.

• Who is it for? For farmers and builders. It's the best compromise between power, speed, and price. Its 10-ton force is sufficient to split most logs while maintaining a fast cycle time.

👉 See Ø 80 mm cylinders at BRhydraulic.eu

4. Cylinders Ø 100 mm - Heavy Weight

We're entering the realm of high power. The "hundred" actuator is a powerful tool that requires a solid machine frame.

• Force (at 200 bar): approx. 15.7 tons

• Application: Professional hydraulic splitters (coping with knotty oak), 15-20 ton workshop presses, construction machinery, heavy harrows and subsoilers.

• Who's it for? If you're building a log splitter that will "cut through anything," choose a 100 mm diameter. However, remember that this cylinder has a large capacity – it requires a powerful pump (at least 40 l/min) to keep it from running too slowly.

👉 See Ø 100 mm cylinders at BRhydraulic.eu

5. Cylinders Ø 125 mm – Industrial Giant

The largest standard actuator in our range. This design is for those who refuse to compromise.

• Force (at 200 bar): approx. 24.5 tons (at 300 bar up to 37 tons!)

• Applications: Heavy industrial presses, scrap crushers, pellet production machines, large sawmill equipment.

• Who is it for? For industrial and specialized applications only. Mounting this type of actuator requires the use of large-diameter pins and a very strong supporting structure.

👉 See Ø 125 mm cylinders at BRhydraulic.eu

Force Selection Table (Constructor's Cheat Sheet)

To make your choice easier, we have prepared a simple summary of theoretical (extension) forces for various pressures:

Please note: The values ​​given are theoretical. In practice, approximately 5-10% should be subtracted for seal friction.

Summary

Choosing an actuator is always an art of compromise.

• Want speed? Choose Ø 50 or Ø 63 .

• Looking for versatility for your Tura? Choose Ø 80 .

• Need a powerful crusher for your baler or splitter? Aim for Ø 100 or Ø 125 .

At BRhydraulic.eu, you'll find cylinders in all these sizes, available immediately, with various working strokes. Still unsure? Contact our technical department – ​​we'll help you choose the perfect drive for your machine!