The cylinder refers to the cylindrical metal part that guides the piston to reciprocate linearly in the cylinder. The thermal energy of the air is expanded into mechanical energy in the engine cylinder; the gas compressor cylinder is compressed by the piston to increase the pressure.
Housings for turbines, rotary piston formula engines, etc. Also known as the “cylinder”. Application fields of cylinder: printing (tension control), semiconductor (spot welding machine, chip grinding), automation control, robot, etc.
Komora u klipu smještena je na blok cilindra motora s unutrašnjim sagorijevanjem. To je putanja kretanja klipa. U toj putanji se širi izgaranje plinova, a kroz stijenku cilindra dio eksplozivne otpadne topline prenesene plinom može se raspršiti, tako da motor može održavati normalnu radnu temperaturu. Cilindri su dostupni u cjelovitim i jednodijelnim lijevanim modelima. Jednodijelni lijevani cilindri se dijele na suhi tip i mokri tip. Kada su cilindar i blok motora izliveni kao cjelina, to se naziva cjeloviti cilindar; kada su cilindar i blok motora izliveni odvojeno, blok motora od jednodijelnih lijevanih cilindara naziva se skup cilindara. Grupa cilindara koja je u direktnom kontaktu sa rashladnom vodom naziva se mokra grupa cilindara; grupa cilindara koja nije u direktnom kontaktu sa rashladnom vodom naziva se suha grupa cilindara. Kako bi se održala zbijenost kontakta između cilindra i klipa i smanjili gubici trenjem uzrokovani kretanjem klipa u njemu, unutrašnji zid cilindra treba imati visoku preciznost obrade te precizan oblik i dimenzije.
Pneumatski aktuator koji pretvara energiju pritiska komprimiranog gasa u mehaničku energiju u pneumatskom prijenosu. Postoje dvije vrste cilindara: cilindri s reciprocirajućim linearnim kretanjem i cilindri s reciprocirajućim rotacijskim kretanjem. Cilindri s reciprocirajućim linearnim kretanjem mogu se podijeliti na četiri vrste: jednostruko djelujući cilindri, dvostruko djelujući cilindri, dijafragmni cilindri i udarni cilindri.
①Jednodjelujući cilindar: samo je jedan kraj opremljen klipnjačom, a zračni pritisak se stvara na strani klipa putem dovoda plina i akumulacije energije. Zračni pritisak gura klip za stvaranje potiska, a povratak se vrši pomoću opruge ili vlastite težine.
②Cilindar dvostrukog djelovanja: naizmjenično dovodi zrak na obje strane klipa i izbacuje silu u jednom ili dva smjera.
③ Cilindar tipa dijafragme: Dijafragma se koristi umjesto klipa, sila se prenosi samo u jednom smjeru, a opruga se koristi za povratak. Njegova zaptivna svojstva su dobra, ali je hod kratak.
④ Udarn cilindar: Ovo je novi tip elementa. Pretvara energiju pritiska komprimiranog plina u kinetičku energiju klipa koji se kreće velikom brzinom (10 ~ 20 m/s) kako bi obavljao rad.
⑤ Cilindar bez klipnjače: Opći naziv za cilindre bez klipnjače. Postoje dvije vrste: magnetni cilindri i kablovski cilindri.
Ključajući cilindar se naziva ključajući cilindar, unutrašnja šupljina je podijeljena na dvije komore pomoću lopatica, te komore naizmjenično opskrbljuju zrakom, izlazna osovina se njiše, a ugao njiha je manji od 280°. Osim toga, postoje rotacijski cilindri, plinsko-hidraulični amortizacijski cilindri, korakni cilindri itd.
2026 selection update: a cylinder is a motion system
A pneumatic cilindar needs a matched force calculation i maintenance plan. Bore and stroke are only the starting fields; mounting, side load, cushioning, sensing, pressure, speed and contamination determine whether the actuator will run reliably.
| Design field | Verify before release |
|---|---|
| Load | Force direction, effective area, friction, acceleration and guidance. |
| Motion | Stroke, speed, cushioning, cycle rate and end-position sensing. |
| Usluga | Air quality, temperature, washdown, seal kit and access for inspection. |
Use the basic force relationship for an initial estimate, then confirm the exact manufacturer’s force table and mounting limits. The pneumatic parts range can be matched after the valve, tube and sensor requirements are known.
Why can a correctly sized cylinder still stall?
Side load, guide friction, low supply pressure, flow restriction, valve switching or a binding mechanism can remove the expected margin.
What does a cycle counter add?
It helps expose drift or missed strokes earlier, but it does not replace alignment checks, leak inspection or the supplier’s maintenance instructions.
Which standard should be quoted?
Use the standard applicable to the cylinder family and project; ISO 15552 is a dimensional reference for its scope, not a universal seal or pressure rating.
Frequently asked questions about pneumatic cylinders
What does a pneumatic cylinder do?
It converts compressed-air energy into controlled linear motion through a piston and rod assembly.
How is cylinder force estimated?
Use pressure multiplied by effective piston area, then account for friction, return-spring effects, side loads and the project safety factor.
When should a single-acting cylinder be selected?
Choose it when the process needs powered motion in one direction and a spring or external force can provide the return, subject to the load and cycle requirements.
Why are sensors added to cylinders?
Sensors can confirm end position or cycle state for the controller. They do not correct poor alignment, excessive side load or an undersized actuator.
How do cushioning and speed relate?
Cushioning controls end-of-stroke impact. Set it with the actual load and speed; excessive cushioning can slow the cycle.
What should be included in a cylinder quotation?
Include bore, stroke, mounting, rod and thread details, pressure, speed, load, sensor requirement, environment and expected cycle rate.
Reference
- ISO 15552:2018 — official cylinder dimensional reference.
- ISO 4414:2010 — official pneumatic system safety reference.
Summary
Select a cylinder from the actual load and motion, not from bore alone. Confirm force, mounting, guidance, speed, cushioning, sensing and environment, then commission it under the real load. A small record of cycle count, leaks and end-position signals makes maintenance more useful and avoids promising a force or life value that belongs to another model.
