Industrial automation today rests on three main pillars: electric drives, hydraulics and pneumatics. It is pneumatic systems that control the vast majority of linear and rotary movements in modern production lines – from the automotive industry to packaging technology. Their heart consists of pneumatic valves and cylinders, which efficiently convert compressed air into controlled mechanical movement. With the help of these devices you will be absolutely amazed at the way they simplify complicated processes, make production more efficient and raise its quality. This article is therefore for anyone starting up an industrial business or who has taken a job where automation technology is used and needs to learn more.
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Key facts about pneumatics
- ✅ Economy: Pneumatics is 30–40 % cheaper to maintain than electric drives, which saves your company budget in the long term and reduces downtime.
- 🔹 Performance: The response time of modern valves is under 50 ms, for a lightning-fast reaction of your line.
- ✔️ Savings: Intelligent compressed air control (IoT) brings energy savings of up to 34 %.
- 🔹 Market: The market for pneumatic cylinders is growing steadily (in 2026 it will exceed USD 17.37 billion), with reliable double-acting cylinders accounting for over 65 % of the market.
Why choose pneumatics? A comparison with hydraulics and electric drives
Pneumatics wins wherever fast, simple and robust movement at low acquisition cost is required. Thanks to generally good tightness, pneumatic systems are resistant to dust and moisture and are ideal for environments with a risk of explosion (ATEX). For the whole pneumatic system to work properly you of course also need a suitable compressor and its accessories, for example an adequately large air receiver and compressed air treatment, so that the air is harmless and clean for the pneumatic system. The following table shows what a win pneumatics is for the business and for your wallet.
Parameter |
Pneumatics |
Hydraulics |
Electric drives |
|---|---|---|---|
| Maintenance costs | 30–40 % lower | High (oil, seals) | Medium |
| Footprint | 60 % less space | Large distribution lines | Compact |
| Response speed | < 50 ms | Slower | Very fast |
| Safety (EX zones) | Yes (ideal) | Yes, with limitations | Limited |
| Acquisition costs | Low to medium | High | Medium to high |
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Pneumatic valves: the brain of air distribution
A pneumatic valve acts as a distributor that determines the direction, flow and pressure of the air. Today we divide valves into several categories. You will find all kinds, including the currently very popular electromagnetic solenoid valves, in our online shop as well. They allow digital control and diagnostics (used in 78 % of new installations) for a perfect overview of the system. According to the number of connected inlets and outlets we then come across 3/2, 5/2 or 5/3 valves, where the first number gives the number of connections and the second the number of valve positions.
Basic types of valves and their function:
- ✅ 3/2 valve (3 ways / 2 positions): Ideal for controlling single-acting cylinders. In the rest position it either lets air in or vents it.
- ✅ 5/2 valve (5 ways / 2 positions): The industrial standard for double-acting cylinders. The most widely used element in automation.
- ✅ 5/3 valve (5 ways / 3 positions): The centre position makes it possible to stop the piston at any point or to vent both sides of the cylinder, which brings maximum control.
- ✅ Throttle and check valves: Key to the precise regulation of movement speed and to ensuring one-way flow.
Tip for choosing: When selecting a valve, watch the flow, which determines the speed of the cylinder, and the working pressure (commonly 2–10 bar). The right choice will fundamentally extend the service life of the system.
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Pneumatic cylinders: strength in motion
Cylinders are the end elements (actuators) that perform the actual work for which the compressed air is led from the compressor. You will most often find them right on the production line. We divide pneumatic cylinders primarily according to the way they work:
- 🔹 Single-acting cylinder: The air acts from one side only, the return is provided by a spring. This ensures safety and a fail-safe return in the event of a pressure loss.
- 🔹 Double-acting cylinder: The air acts on both sides of the piston. This allows full control over both force and speed in both directions for precise handling.
Moreover, cylinders are not only about linear movement. They can also generate rotary or swivel movement. A great advantage of pneumatic cylinders is their absolute cleanliness and harmlessness compared with their hydraulic colleagues. There is no risk of oil leaks that could damage the products. You will appreciate that especially in hygienically demanding operations such as the food or pharmaceutical industry.
Standardisation to ISO standards for easy service:
For easy interchangeability and to reduce maintenance costs, cylinders are manufactured to international standards:
- ✔️ ISO 6432: Round cylinders (light series, diameters 10–25 mm).
- ✔️ ISO 15552: Profile cylinders (the industrial standard, 32–125 mm).
- ✔️ ISO 21287: Compact cylinders for confined spaces, ideal where you are fighting for every millimetre on the line.
- ✔️ Rodless cylinders: Extreme space saving; the movement is transmitted mechanically or magnetically.
Energy saving and the future (Industry 4.0)
Compressed air can be fairly expensive when it is managed badly. It usually accounts for 10–30 % of the electricity consumption in plants, and that is why it is essential to use every opportunity to reduce costs without the performance of your system falling.
- ✅ Reducing the pressure: Reducing the pressure by just 1 bar saves 7 % of the compressor's energy, which in the annual accounts represents a massive financial saving.
- ✅ Predictive maintenance: Deploying sensors reduces unplanned downtime by 42 % – your line will thus run reliably and without outages.
- ✅ Frequency converters: Screw compressors (for example the SCR and ABAC brands) with a converter save 20–35 % of the costs compared with conventional control.
Complete solutions from Kompresory-vzduchotechnika.cz
Configuring an automation system correctly and thinking everything through to the last detail is a difficult task. With a portfolio of over 143 000 products and experience with more than 15 000 customers, we are your reliable partner. With us you will get complete pneumatic systems and expert help with the selection:
- 🔹 A wide range: From 2/2 to 5/3 solenoid valves to special rodless cylinders, so that you find exactly what your production requires.
- 🔹 Leading brands: ABAC and Atmos compressors and highly efficient SCR screw compressors.
- 🔹 Tailored services: Design of distribution lines (the Tectite, SICOAIR and AIRnet systems), energy audits and turnkey manufacture of automation for maximum peace of mind.
Do you need a technical consultation for your operation? Just let us know, we will gladly help you with the design.
