Piston seals

Pneumatic piston seals for reliable cylinder movements

Pneumatic piston seals perform a central function in pneumatic cylinders. They ensure that stroke and pulling movements are properly sealed and that the required operating pressure can be built up in the system.

If a pneumatic piston seal is no longer fully functional, this often does not become apparent immediately. A typical first sign is that the full operating pressure is no longer reached. The right seal profile is therefore essential – matched to the sealing system, temperature, medium, and operating conditions.

INNSEALS pneumatic piston seals
Trenner

The right pneumatic piston seal for your application

We provide personal consulting

Send us your inquiry with dimensions, material, medium, temperature range, pressure, and operating conditions. Our team will review the right solution for your application.

Pneumatic piston seals from INNSEALS

Pneumatic piston seals are used in the piston of a pneumatic cylinder. They separate the pressure chambers from each other and ensure that compressed air is converted into controlled linear motion.

Different seal profiles are used depending on the cylinder design. It is important whether the sealing system is designed as single-acting or double-acting. Operating pressure, temperature, medium, movement speed, and installation space also influence the selection of the right piston seal.

Trenner

Piston seals in the pneumatic sealing system

Pneumatic piston seals often work together in the system with guide elements, wipers, and other sealing elements. Guide elements stabilize the piston, while the piston seal seals the pressure chambers.

Only the interaction of the individual components ensures reliable function, low friction, and a long service life of the pneumatic cylinder.

Functions

  • Sealing of the pressure chambers in the pneumatic cylinder
  • Ensuring stroke and pulling movements
  • Build-up and maintenance of operating pressure
  • support for controlled motion sequences
  • prevention of internal leakage
  • contribution to the mechanical function of the sealing system

Application

  • pneumatic cylinders
  • automation technology
  • mechanical and plant engineering
  • handling technology
  • packaging machines
  • manufacturing technology
  • linear pneumatic systems
  • stroke and pulling movements
  • single- and double-acting cylinders
INNSEALS pneumatic piston seals

Single-acting and double-acting piston seals

The selection of the right pneumatic piston seal depends heavily on the cylinder design. In single-acting systems, pressure acts in only one direction of movement. In double-acting systems, the piston seal must provide reliable sealing in both directions.

Key distinctions

  • single-acting piston seals
  • double-acting piston seals
  • sealing systems with guide elements
  • combinations with wipers and other sealing elements
  • profiles for different pressure and movement requirements

Variants

INNSEALS pneumatic piston seal PK02

Piston seal profile PK02

INNSEALS pneumatic piston seal PK03

Piston seal profile PK03

INNSEALS pneumatic piston seal PK05

Piston seal profile PK05

INNSEALS pneumatic piston seal PK06

Piston seal profile PK06

INNSEALS pneumatic piston seal PK07

Piston seal profile PK07

INNSEALS pneumatic piston seal PK08

Piston seal profile PK08

INNSEALS pneumatic piston seal PK10

Piston seal profile PK10

INNSEALS pneumatic piston seal PK11

Piston seal profile PK11

INNSEALS pneumatic piston seal PK12

Piston seal profile PK12

INNSEALS pneumatic piston seal PK13

Piston seal profile PK13

INNSEALS pneumatic piston seal PK14

Piston seal profile PK14

INNSEALS pneumatic piston seal PK15

Piston seal profile PK15

INNSEALS pneumatic piston seal PK16

Piston seal profile PK16

INNSEALS pneumatic piston seal PK18

Piston seal profile PK18

INNSEALS pneumatic piston seal PK19

Piston seal profile PK19

INNSEALS pneumatic piston seal PK20

Piston seal profile PK20

INNSEALS pneumatic piston seal PK21

Piston seal profile PK21

INNSEALS pneumatic piston seal PK24

Piston seal profile PK24

INNSEALS pneumatic piston seal PK25

Piston seal profile PK25

INNSEALS pneumatic piston seal PK26

Piston seal profile PK26

INNSEALS pneumatic piston seal PK27

Piston seal profile PK27

INNSEALS pneumatic piston seal PK92

Piston seal profile PK92

Your FAQs answered

Frequently asked questions:

Der Einsatz ist notwendig, sobald ein pneumatischer Zylinder verwendet wird. Ohne Kolbendichtung kann kein ausreichender Druck aufgebaut oder gehalten werden.

Yes, leakages lead to pressure loss and inaccurate movement. This reduces efficiency and can lead to functional malfunctions.

Pneumatic seals are designed for lower pressures and drier conditions. They often require lower friction and are more sensitive to lubrication.

An optimally matched seal reduces air losses and friction. This makes the system work more efficiently and requires less energy for the same output.

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