Hydraulic Cylinders – Drives for Machines and Equipment

Power you can rely on. We offer a wide selection of hydraulic cylinders: from standard models for agricultural machinery to reinforced heavy-duty industrial cylinders. Our offerings include single- and double-acting, telescopic, and plunger cylinders. We guarantee high-quality seals, precision workmanship, and durability in harsh operating conditions.
Skip to results list
25 items

Filter

Dimensions of hydraulic cylinders
Siłownik - przekrój

K – Inner diameter of the pipe

P – Piston rod diameter

MJ – Thread on the piston rod

S – Jump

C – Outer diameter of the pipe

FG – Outer dimensions of the bottle

H – Thickness of the bottle

D – Connection thread

L – Length of the folded actuator

LS – Length of the extended actuator

K/S MJ P C FG KO H D L LS A
50/100 M27*2 28 60 120 40 15 M18*1.5 300 400 40
50/300 M27*2 28 60 120 40 15 M18*1.5 500 800 40
50/500 M27*2 28 60 120 40 15 M18*1.5 700 1200 40
50/700 M27*2 28 60 120 40 15 M18*1.5 900 1600 40
50/900 M27*2 28 60 120 40 15 M18*1.5 1100 2000 40
63/100 M27*2 35 73 140 40 15 M18*1.5 320 420 40
63/300 M27*2 35 73 140 40 15 M18*1.5 520 820 40
63/500 M27*2 35 73 140 40 15 M18*1.5 720 1220 40
63/700 M27*2 35 73 140 40 15 M18*1.5 920 1620 40
63/900 M27*2 35 73 140 40 15 M18*1.5 1120 2020 40
80/100 M33*2 50 92 160 40 15 M18*1.5 355 455 40
80/300 M33*2 50 92 160 40 15 M18*1.5 555 855 40
80/500 M33*2 50 92 160 40 15 M18*1.5 755 1255 40
80/700 M33*2 50 92 160 40 15 M18*1.5 955 1655 40
80/900 M33*2 50 92 160 40 15 M18*1.5 1155 2055 40
100/100 M42*2 60 114 180 50 20 M22*1.5 375 475 50
100/300 M42*2 60 114 180 50 20 M22*1.5 575 875 50
100/500 M42*2 60 114 180 50 20 M22*1.5 775 1275 50
100/700 M42*2 60 114 180 50 20 M22*1.5 975 1675 50
100/900 M42*2 60 114 180 50 20 M22*1.5 1175 2075 50
125/100 M60*2 70 145 250 40 25 M22*1.5 375 475 40
125/300 M60*2 70 145 250 40 25 M22*1.5 575 875 40
125/500 M60*2 70 145 250 40 25 M22*1.5 775 1275 40
125/700 M60*2 70 145 250 40 25 M22*1.5 975 1675 40
125/900 M60*2 70 145 250 40 25 M22*1.5 1175 2075 40
  • K – Internal tube diameter
  • P – Piston rod diameter
  • MJ – Piston rod thread
  • S – Stroke
  • C – Outer tube diameter
  • FG – Outer flange dimension
  • KO – Piston rod thread length
  • H – Flange thickness
  • D – Connection thread
  • L – Retracted cylinder length
  • LS – Extended cylinder length

Flange dimensions
siłownik hydrauliczny

Q1 - hole diameter

Q2 - outer diameter

Q3 - hole spacing

Cylinder inner diameter Q1 Q2 Q3
50 4 x 14 95 120
63 4 x 14 115 140
80 4 x 16 135 160
100 4 x 20 150 210
125 4 x 20 210 250

Hydraulic Cylinders – The Heart of Your Machine

A hydraulic cylinder is an actuator that converts the energy of compressed oil into linear motion. Its efficiency and tightness determine the performance of excavators, loaders, balers, agricultural machinery, and production lines. In this category, we've gathered proven solutions that combine mechanical durability with precise operation.

Types of actuators in our offer

To make it easier to choose the right component, we have divided the range into key subcategories:

  • Double-acting cylinders: The most common type, in which the working fluid forces movement in both directions (extends and retracts). Ideal for controlling machine arms, plows, or downforce systems.
  • Single-acting cylinders: They operate under pressure only in one direction (usually extension), the return is due to gravity or spring force (e.g. in tipper trucks).
  • Telescopic cylinders: Consisting of several sections, which allows for a very large stroke while maintaining a short length when folded.
  • Plunger cylinders: Designs with increased buckling resistance, used in lifts.

Construction and build quality

We know that actuator failure means costly downtime. That's why the products we offer are characterized by:

  1. Piston rods: Made of high-quality steel (e.g. C45, 20MnV6), coated with technical chrome, which ensures surface hardness and corrosion resistance.
  2. Cylinder tubes: Internally honed (H8 finish) to minimize friction and extend seal life.
  3. Seals: We use sealing packages from renowned manufacturers, resistant to high pressures, temperature fluctuations and contact with hydraulic oils.

Application

Our hydraulic cylinders are used in a wide range of industries:

  • Agriculture: Tury (front loaders), aggregates, sprayers, trailers, tractors (Ursus, Zetor and others).
  • Construction: Excavators, bulldozers, cranes, concrete mixers.
  • Industry: Hydraulic presses, workshop lifts, log splitters, material handling systems.
  • Transport: Tail lifts, trailers, HDS trucks.

Not sure which cylinder to choose? Consider the piston diameter, piston rod diameter, and required stroke. Our technical team will be happy to help you select a replacement or propose a custom solution.

FAQ: Hydraulic Cylinders – Questions and Answers
1. How to choose a hydraulic cylinder for a splitter, baler or front loader (Tura)?

The correct selection of the actuator depends on three key dimensions and the operating pressure of the pump:

  • Cylinder (piston) internal diameter: This determines the pressing force/lifting capacity. BRhydraulic offers popular diameters ranging from 50 mm (for lighter agricultural machinery) to 125 mm (powerful cylinders for heavy balers and splitters with pressures exceeding 20-30 tons).
  • Piston rod diameter: This determines the cylinder's resistance to buckling. The thicker the piston rod, the less likely it is to bend under heavy loads.
  • Cylinder Stroke: The difference between the cylinder when fully retracted and fully extended. This determines the machine's operating range.
2. What is the difference between a single-acting and a double-acting cylinder?

This is the basic division of hydraulic drives, determining the method of controlling the machine:

  • Single-acting cylinder: Pressurized oil extends the piston rod in one direction only. Return to the starting position is achieved by the weight of the load (e.g., a falling dump truck bed) or a built-in spring.
  • Double-acting cylinder: Equipped with two hydraulic ports, pressurized oil is alternately pumped from one side of the piston, allowing for controlled extension and retraction using system power (e.g., excavator arm, press, log splitter).
3. How to calculate the pressing force (lifting capacity) of a hydraulic cylinder?

The force generated by the actuator depends on the system pressure (in bar) and the piston surface area (in cm²).
The simplified formula is: Force (in kg) = Pressure (bar) x Piston area (cm²) x 1.02.
Example: With a pump delivering 200 bar of pressure and a cylinder with an internal cylinder diameter of 100 mm (area of ​​approximately 78.5 cm²), you'll achieve a pressure of over 15 tons! If you're having trouble with the calculations, contact BRhydraulic experts – we'll help you choose the right drive for your machine.
4. Why does a hydraulic cylinder sag under load or not hold pressure?

Spontaneous arm drop (e.g. in a loader) or piston rod retraction most often results from two causes:

  1. Worn internal seals (piston seal packs): Oil leaks inside the cylinder between the chambers. This requires disassembly of the cylinder and replacement of the seals.
  2. Distributor leak: Often it is not the actuator that is to blame, but a worn-out slider in the solenoid valve (distributor) that allows oil to flow back.

BRhydraulic Expert Advice: To completely eliminate the problem of the cylinder sagging under load (which is crucial for safety), we recommend installing hydraulic locks (twin check valves) directly on the cylinder ports. The lock mechanically blocks oil flow until pressure is applied from the distributor.
5. How to properly measure a damaged actuator before purchasing a new one?

To help us choose the perfect replacement in the BRhydraulic store, please provide us with the following dimensions:

  • Folded Length: Distance from the center of the mounting eye at the bottom to the center of the eye on the piston rod (when the cylinder is fully retracted).
  • Rod Stroke: Measure the difference in overall length between the retracted and fully extended positions (or simply measure the visible, shiny part of the extended rod).
  • Eyelet/pin diameter: Make sure you know what thickness of mounting pins (e.g. Ø 30, Ø 40) your machine has.

Featured products