Machined Pneumatic Seals

Machined Pneumatic Seals

M Seals manufactures a large number of engineered seals specifically for pneumatic air driven systems. Our engineered pneumatic seals have been used by OEM and cylinder repair customers operating in the pneumatic cylinder industry for many years.

From our wide selection of optimised low-friction materials, we have produced rod seals, piston seals, guide rings, and wiper seals for dynamic pneumatic systems, solving problems for customers operating in the rail industry, steel industry and the automotive industry.

Browse the selection of pneumatic seals shown below for more details or contact us to find out how one of our engineered pneumatic seal solutions can help improve your application.

IMPORTANT - Please Note: The data shown below are maximum values and operating ranges and cannot be used at the same time.

For example: The maximum operating speed will depend on material type chosen, working pressure, application temperature and clearance gap values. The temperature range shown is also dependent on choice of material and media to be sealed.

Profile	Name	Operating Range	Summary
	AB04	Temperature Min: -55 °C Max: 210 °C Speed Max: 5 m/s	The AB04 is a flexible Snap-fit (3 step) wiper seal that has been optimised for pneumatic applications. The seal has tight fit in the groove across the outside diameter to help prevent rolling and a precision machined scraping lip which has a radiused contact point to allow the retention of initial lubrication film which provides lower breakout friction in fast moving pneumatic applications. Standard materials are NBR, FPM and soft PU
	AB05	Temperature Min: -55 °C Max: 210 °C Speed Max: 5 m/s	The AB05 is a flexible Snap-fit wiper seal that has been optimised for pneumatic applications. The seal has tight fit in the groove across the outside diameter to help prevent rolling and a precision machined scraping lip which has a radiused contact point to allow the retention of initial lubrication film which provides lower breakout friction in fast moving pneumatic applications. Standard materials are NBR, FPM and soft PU.
	FB05	Pressure: Max: -- Temperature Min: -200°C Max: 200°C Speed Max: 5 m/s	M Seals piston guide ring / wear ring profile FB05 has the addition of a locating ring on the inside diameter to reduce axial movement in reciprocating applications. Piston guide ring profile FB05 is a tight tolerance ring which is commonly used in pneumatic applications where precise piston movement is critical. This wear ring can be manufactured from several of our high-performance thermoplastic materials to provide precise clearance control and low friction operation. The tight tolerance control on the FB05 profile ensures excellent bearing contact which helps minimise and control misalignment while the rod is under static or dynamic load. This profile is split for ease of installation and normally locates on the piston in the centre of two single acting (uni-directional) piston seals working in a back-to-back configuration. Please contact our technical department for further information on the correct material choice for your application.
	FB06	Pressure: Max: -- Temperature Min: -200°C Max: 200°C Speed Max: 5 m/s	M Seals rod guide ring / wear ring profile FB06 has the addition of a locating ring on the outside diameter to reduce axial movement in reciprocating applications. It is a tight tolerance ring which is commonly used in pneumatic applications where precise calculated movement is critical. This wear ring can be manufactured from several of our high-performance thermoplastic materials to provide precise clearance control and low friction operation. The tight tolerance control on the FB06 profile ensures excellent bearing contact which helps minimise and control misalignment while the rod is under static or dynamic load. This profile is split for ease of installation and locates into the gland and is commonly used in tandem sealing configurations where two single acting (uni-directional) seals are working in-line to provide a level of sealing redundancy. Please contact our technical department for further information on the correct material choice for your application
	KB01A	Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s	KB01A profile is an asymmetric single acting/uni-directional hydraulic piston working u-cup seal. The seal has a shortened dynamic sealing lip and increased groove depth and groove width which offers increased seal deflection while providing improved friction and compression set characteristics in comparison to standard symmetrical u-rings. It has an interference fit along the inside diameter to ensure a stable fit in the housing and to provide a tight static seal across the inside diameter of the seal groove. This profile is available in several of our high-performance seal materials to provide both design engineers or repairers with exceptional extrusion resistance, low compression set and outstanding wear properties.
	KB05	Pressure Max: 25 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 2 m/s	The KB05 Profile is used in pneumatic sealing systems where low friction and high sealing performance are critical. The low footprint, radiused sealing lip gathers fluid film and the undercut on the outside diameter locks in initial lubrication. These features are unique in pneumatic rod seal design and help to considerably lower frictional values. The seal is manufactured with an interference fit along the inside diameter which provides it with excellent stability in the groove while it reciprocates against the cylinder bore. The KB05 profile is available in a variety of our high-performance materials, but our lubricated polyurethane s are most common due to the extra lubrication and abrasion resistance provided.
	KB05A	Pressure Max: 25 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 1 m/s	The KB05A Profile is for use in pneumatic sealing systems where sealing performance is chosen over frictional output. The radiused sealing lip gathers fluid film to help lower frictional values while the piston is reciprocating at high speed. The seal is manufactured with an interference fit across the inside diameter which provides the KB05A with stability in the groove helping to prevent any possible seal roll while under pressure. The KB05A profile is commonly used in our standard Nitrile rubber material, but others are available if the application requires.
	KB16A	Pressure Max: 160 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 2 m/s	Commonly referred to as a Cup seal or Dish ring our KB16A design is a single acting/uni-directional seal with a positive, flared lip design to provide good dynamic sealing force. The Cup seal is traditionally seals from one direction only, it is generally returned to position by a spring situated on the none-pressure side. The KB16A is useful in friction critical applications due to its flexible low contact sealing lip and radiused back heel which helps preserve a fluid film on the cylinder bore.
	KB27	Pressure Max: 400 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 0.7 m/s	The KB27 design is a double acting/bi-directional seal that combines the attributes of our standard KB16 profile but in both directions. The KB27 should be simply attached by retaining plates and locking nut.
	RB09	Pressure Max: 300 bar Temperature Min: -50 °C Max: 210 °C Speed Max: 2 m/s	PTFE composite rotating rod seal, o ring activated. Compact design suitable for small installation spaces where a low friction seal is required. Wide chemical and thermal resistance depending on o ring material selection. Wide range of PTFE compounds.
	RB10	Pressure Max: 300 bar Temperature Min: -50 °C Max: 210 °C Speed Max: 2 m/s	PTFE composite rotating piston seal, o ring activated. Compact design suitable for small installation spaces where a low friction seal is required. Wide chemical and thermal resistance depending on o ring material selection. Wide range of PTFE compounds.
	RB13	Pressure Max: 600 bar Temperature Min: -50 °C Max: 210 °C Speed Max: - m/s	The simple O-Ring is one of the oldest and most trusted static sealing methods available. M Seals can manufacture O-Rings ‘flash-free’ on the outside and inside diameter contact points helping to provide leak-free performance in radial sealing applications. We manufacture Rubber O-Rings, Polyurethane O-Rings, PTFE O-Rings and O-Rings for rapid gas decompression resistance in one of our Norsok compliant RGD / ED resistant materials.
	RB14	Pressure Max: 160 bar Temperature Min: -50 °C Max: 210 °C Speed Max: - m/s	Our RB14 is a simple square section or rectangular profile used for economical sealing of SAE flanges for both internal and external pressure (confirmation of the pressure direction is required). It provides good low-pressure sealing efficiency up to 100 Bar which can be increased through the correct choice of back-up ring. While being economical it isn’t the most robust seal for flange sealing, talk to our technical department about the best choice of seal for your application.
	SB05	Pressure Max: 25 barTemperature Min: -55 °C Max: 210 °C Speed Max: 2 m/s	The SB05 Profile is used in pneumatic sealing systems where low friction and high-speed sealing performance are critical. The low footprint, radiused sealing lip gathers fluid film and the undercut on the inside diameter locks in initial lubrication, both features are unique in pneumatic rod seal design and help to considerably lower frictional values. The seal is manufactured with an interference fit across the outside diameter which provides the SB05 with stability in the groove while the piston rod reciprocates through the seal. The SB05 profile is available in a variety of our high-performance materials, but our lubricated polyurethane is most common
	SB05A	Pressure Max: 25 barTemperature Min: -55 °C Max: 210 °C Speed Max: 1 m/s	The SB05A Profile is for use in pneumatic sealing systems where sealing performance is chosen over frictional output. The radiused sealing lip gathers fluid film to help lower frictional values while the shaft is reciprocating at high speed. The seal is manufactured with an interference fit across the outside diameter which provides the SB05A with stability in the groove helping to prevent any possible seal roll while under pressure. The SB05A profile is commonly used in our standard Nitrile rubber material, but others are available if the application requires
	XB62	Pressure Max: 350 bar Temperature Min: -55 °C Max: 210 °C Speed Max: 15 m/s	XB62 is a double acting / bi-directional piston seal designed for hydraulic and pneumatic dynamic applications and to be installed and operate in standard AS4716 O-Ring and Back-up Ring groove sizes. The seal provides good low-friction dry running properties and reduces stick-slip in operation while being a compact design, which make it ideal for pneumatic applications. The XB63 can be supplied in one of our high-performance PTFE materials complete with O-Ring energiser to operate in aggressive high temperature applications.
	XB63	Pressure Max: 350 bar Temperature Min: -50°C Max: 210°C Speed Max: 15 m/s	XB63 is a double acting / bi-directional seal designed for hydraulic and pneumatic dynamic applications and to be installed and operate in standard AS4716 O-Ring and Back-up Ring groove sizes. The seal provides good low-friction dry running properties and reduces stick-slip in operation while being a compact design, which make it ideal for pneumatic applications. The XB63 can be supplied in one of our high-performance PTFE materials complete with O-Ring energiser to operate in aggressive high temperature applications.

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