Pneumatic Seals
We offer Freudenberg Sealing Technologies makes a comprehensive range of pneumatic seals, such as piston and rod seals, damper seals as well as grippers and suction caps for automation. In addition to the standard products, Freudenberg Sealing Technologies offers individual solutions tailored specifically for the corresponding application. All products are characterized by their long service life.
Applications:
- Most commonly used in the following applications:
- Handling systems
- Packaging machinery
- Pneumatic cylinders in automation technology
- Pneumatic cylinders in plant and mechanical engineering
Rod Seals (Pneumatic)
NIPSL 310
The state-of-the-art pneumatic seals of Freudenberg Sealing Technologies are used in dynamic applications and employ combined wiping/sealing elements due to the lower operating pressures in comparison with those arising in hydraulics. In connection with special materials, the use of the pneumatic seal therefore leads to the development of a high-performance sealing system with an excellent price/performance ratio.
Types:
AIRZET PR AU NIPSL NIPSL NIPSL 300 NIPSL 210
. 
Piston Seals (Pneumatic)
NAP210
The pneumatic piston seals of Freudenberg Sealing Technologie seal the piston reliably against the cylinder tube and guarantee its movement efficiently with minimum friction and no drift. They are used in a variety of modern sealing systems. The pneumatic piston seals are adapted to the respective operating conditions and tasks and persuade due to their high functionality.
Types:
NAP300 NAPN AIRZET PK TDUOP
Damping Seals (Pneumatic)
AU DIP
The 3-in-1 Damp & Seal damper seal of Freudenberg Sealing Technologies combines the functions of three components in a single one, which extremely simplifies processes in the manufacturing of pneumatic cylinders, thereby relieving purchasing, warehouse and logistics departments. In addition, the 3-in-1 Damp & Seal damper seals offer excellent damping properties due to their specific design and highly loadable materials.
Types:
AU DIP DIP D&S 300
. 
Applications:
Most commonly used in the following applications:
- Agricultural, forestry, and construction machinery
- Construction machinery
- Fork lifts
- Hydraulic motors
- Hydraulic stands
- Hydraulic systems
- Industrial trucks
- Injection moulding machines
- Loading cranes
- Piston rods
- Presses
- Rolling mills
- Standard cylinders
Standard Cylinder
A standard cylinder design is shown → Fig. The rod is guided in a bronze, plastic or brass bush and is fitted with a combined wiper and rod seal (Merkel Combination Seal AUNIPSL).
The piston is sealed using two pneumatic U-rings (Merkel U-Ring NAP 300, Merkel U-Ring NAP 310). A separate guide is installed between the U-rings.
Radial Shaft Seals
SIMRIT MODULAR SEALING SOLUTION 1 (MSS 1)
- Outer casing: elastomer (smooth)
- Spring-loaded sealing lip and sealing lip with helix edge without spring
- Additional dust lip
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SIMRIT COMBI SEAL
- Design: special types , on enquiry
- Combination of a simmering and on additional seal against dirt from the outside in one housing
- Spring-loaded sealing lip
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SIMRIT CASSETTE SEAL TYPE 3
- Design: special types , on enquiry
- Outer casing: elastomer (smooth)
- Spring-loaded sealing lip
- Additional dust lips
- High resistance to dirt ingress
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SIMRIT OIL SEAL BABSLTO DIN 3760 AS (CLASSICAL PRESSURE SEAL)
- Outer casing: elastomer
- Short flexible, spring-loaded sealing lip
- Additional dust lip.
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SIMRIT OIL SEAL BA…/SL TO DIN 3760 A/AS
- Outer casing: elastomer
- Spring-loaded sealing lip
- Additional dust lip (BA…SL)
- Sealing lip profile, sealing lip machined on the front face
- Sealing lip profile, finished sealing lip (BA FUDX7/BA FUDSLX7).
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SIMRIT OIL SEAL B2…/SL TO DIN 3761 C/CS
- Outer casing: metal, machined
- Metal insert
- Spring-loaded sealing lip
- Additional dust lip (B2…SL)
- Sealing lip profile, sealing lip machined on the front face
- Sealing lip profile, finished sealing lip (B2 FUD/B2 FUDSL).
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SIMRIT OIL SEAL TYPE B1…/SL TO DIN 3761 B/BS
- Outer casing: metal, machined
- Spring-loaded sealing lip
- Additional dust lip (B1…SL)
- Sealing lip profile, sealing lip machined on the front face
- Sealing lip profile, finished sealing lip (B1 FUD/B1 FUDSL).
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Radiamatic Seals
SIMMERRING RADIAMATIC R RHS 51
High speed simmering made from two functionally suitable elastomer components and an integrated steel strip. Two interleaved tension springs ensure an even radial force over the entire circumference length of the sealing edge even with high shaft center offset.
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SIMMERRING RADIAMATIC R R 58
Simmering with a fabric reinforced static part that is securely joined to the elastomer sealing lip. The sealing lip is also pre-loaded with a garter spring.
SIMMERRING RADIAMATIC R R 37
Simmering with a fabric reinforced static part that is securely joined to the elastomer sealing lip. The sealing lip is also pre-loaded with a garter spring.
SIMMERRING RADIAMATIC R R 36
Simmering with a fabric reinforced static part that is securely joined to the elastomer sealing lip. The sealing lip is also pre-loaded with a garter spring.
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SIMMERRING RADIAMATIC R R 35
Simmering with a fabric reinforced static part that is securely joined to the elastomer sealing lip. The sealing lip is also pre-loaded with a garter spring.
View Products
Pneumatic Seals
We offer Freudenberg Sealing Technologies makes a comprehensive range of pneumatic seals, such as piston and rod seals, damper seals as well as grippers and suction caps for automation. In addition to the standard products, Freudenberg Sealing Technologies offers individual solutions tailored specifically for the corresponding application. All products are characterized by their long service life.
Applications:
- Most commonly used in the following applications:
- Handling systems
- Packaging machinery
- Pneumatic cylinders in automation technology
- Pneumatic cylinders in plant and mechanical engineering
Rod Seals (Pneumatic)
NIPSL 310
The state-of-the-art pneumatic seals of Freudenberg Sealing Technologies are used in dynamic applications and employ combined wiping/sealing elements due to the lower operating pressures in comparison with those arising in hydraulics. In connection with special materials, the use of the pneumatic seal therefore leads to the development of a high-performance sealing system with an excellent price/performance ratio.
Types:
AIRZET PR AU NIPSL NIPSL NIPSL 300 NIPSL 210
.
Piston Seals (Pneumatic)
NAP210
The pneumatic piston seals of Freudenberg Sealing Technologie seal the piston reliably against the cylinder tube and guarantee its movement efficiently with minimum friction and no drift. They are used in a variety of modern sealing systems. The pneumatic piston seals are adapted to the respective operating conditions and tasks and persuade due to their high functionality.
Types:
NAP300 NAPN AIRZET PK TDUOP
Damping Seals (Pneumatic)
AU DIP
The 3-in-1 Damp & Seal damper seal of Freudenberg Sealing Technologies combines the functions of three components in a single one, which extremely simplifies processes in the manufacturing of pneumatic cylinders, thereby relieving purchasing, warehouse and logistics departments. In addition, the 3-in-1 Damp & Seal damper seals offer excellent damping properties due to their specific design and highly loadable materials.
Types:
AU DIP DIP D&S 300
.
Applications:
Most commonly used in the following applications:
- Agricultural, forestry, and construction machinery
- Construction machinery
- Fork lifts
- Hydraulic motors
- Hydraulic stands
- Hydraulic systems
- Industrial trucks
- Injection moulding machines
- Loading cranes
- Piston rods
- Presses
- Rolling mills
- Standard cylinders
Standard Cylinder
A standard cylinder design is shown → Fig. The rod is guided in a bronze, plastic or brass bush and is fitted with a combined wiper and rod seal (Merkel Combination Seal AUNIPSL).
The piston is sealed using two pneumatic U-rings (Merkel U-Ring NAP 300, Merkel U-Ring NAP 310). A separate guide is installed between the U-rings.
Radial Shaft Seals
SIMRIT MODULAR SEALING SOLUTION 1 (MSS 1)
- Outer casing: elastomer (smooth)
- Spring-loaded sealing lip and sealing lip with helix edge without spring
- Additional dust lip
SIMRIT COMBI SEAL
- Design: special types , on enquiry
- Combination of a simmering and on additional seal against dirt from the outside in one housing
- Spring-loaded sealing lip
SIMRIT CASSETTE SEAL TYPE 3
- Design: special types , on enquiry
- Outer casing: elastomer (smooth)
- Spring-loaded sealing lip
- Additional dust lips
- High resistance to dirt ingress
SIMRIT OIL SEAL BABSLTO DIN 3760 AS (CLASSICAL PRESSURE SEAL)
- Outer casing: elastomer
- Short flexible, spring-loaded sealing lip
- Additional dust lip.
SIMRIT OIL SEAL BA…/SL TO DIN 3760 A/AS
- Outer casing: elastomer
- Spring-loaded sealing lip
- Additional dust lip (BA…SL)
- Sealing lip profile, sealing lip machined on the front face
- Sealing lip profile, finished sealing lip (BA FUDX7/BA FUDSLX7).
SIMRIT OIL SEAL B2…/SL TO DIN 3761 C/CS
- Outer casing: metal, machined
- Metal insert
- Spring-loaded sealing lip
- Additional dust lip (B2…SL)
- Sealing lip profile, sealing lip machined on the front face
- Sealing lip profile, finished sealing lip (B2 FUD/B2 FUDSL).
SIMRIT OIL SEAL TYPE B1…/SL TO DIN 3761 B/BS
- Outer casing: metal, machined
- Spring-loaded sealing lip
- Additional dust lip (B1…SL)
- Sealing lip profile, sealing lip machined on the front face
- Sealing lip profile, finished sealing lip (B1 FUD/B1 FUDSL).
Radiamatic Seals
SIMMERRING RADIAMATIC R RHS 51
High speed simmering made from two functionally suitable elastomer components and an integrated steel strip. Two interleaved tension springs ensure an even radial force over the entire circumference length of the sealing edge even with high shaft center offset.
SIMMERRING RADIAMATIC R R 58
Simmering with a fabric reinforced static part that is securely joined to the elastomer sealing lip. The sealing lip is also pre-loaded with a garter spring.
SIMMERRING RADIAMATIC R R 37
Simmering with a fabric reinforced static part that is securely joined to the elastomer sealing lip. The sealing lip is also pre-loaded with a garter spring.
SIMMERRING RADIAMATIC R R 36
Simmering with a fabric reinforced static part that is securely joined to the elastomer sealing lip. The sealing lip is also pre-loaded with a garter spring.
SIMMERRING RADIAMATIC R R 35
Simmering with a fabric reinforced static part that is securely joined to the elastomer sealing lip. The sealing lip is also pre-loaded with a garter spring.
We offer Freudenberg Sealing Technologies to make Packings for static and dynamic applications with an excellent sealing effect and remain elastic even with continuous changes in temperature and pressure. They are also characterized by their resistance to chemicals, are flexible, have a long service life, and high extrusion resistance.
Applications:
- Most commonly used in the following applications:
- Propeller shafts Cardan shaft
- Rolling mills
- Shafts and propeller shafts against dust
Stuffing Box Packings
Consisting of various materials, the packings of Freudenberg Sealing Technologies have a wide variety of applications. They are flexible and characterized by their long service life. Packings are used in a number of applications in the process industry. Packings offer an excellent sealing effect with constant elasticity. They are firmly pressed into the installation space, remaining elastic even when temperature and pressure are changing constantly. Added to these features are a high extrusion resistance and dry-running capability.
