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We can quickly manufacture any of the profiles presented in the next pages through our
numerical control system. Usually any profile is made and shipped out in the same day.
Use the references given below to order your seal, along with the type of material to use.
When we do not have it in stock, we make it!
Watch the making of a seal in the video.
The profiles types that we can produce can be divided by the groups present on the PDF file, available for download in the link below. We also can produce special pieces or add a new profile to the software that produces the seals.
| Piston seals
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Rod seals
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| Symmetrical seals (piston and ROD)
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Wipers
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| Rotary seals
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Static Seals
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| Guide rings
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Back-up rings
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The most common materials (with a short technical information) used on the seal combinations we usually have in stock are:
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Polyurethane also known as PU, PUR, Urethane, HPU, polyurethane
| Colour: |
Usually red. Also available in blue and green, with the same performance |
| Max. temperatures: |
-30 to 110 Celcius |
| Used on: |
Universally used material for piston and ROD seals, and also wipers |
| Info: |
Great performance in hydraulic solutions with oils and water-based hydraulic fluids. It also presents physical and chemical resistance to most oils, fuels and gases. It is one of the most popular materials in seals. |
| Physically: |
Elastic, with a smooth surface |
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Nitrile Rubber also known as NBR, Buna-N, Nipol, Krynac and Europrene
| Max. temperatures: |
-30 to 105 Celcius |
| Used on: |
Broad spectrum material. O'rings, wipers, pneumatic seals, low pressure seals. Often used combined with PU elements |
| Info: |
Resilient to most oils, hydraulic fluids (not used for brake oils) and gases. |
| Physically: |
Strong rubber odor, usually without shine |
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Hydrogenated Nitrile Butadiene Rubber also known as HNBR, Hydrogenated Nitrile, Hydrogenated NBR
| Max temperatures: |
-25 to 150 Celcius |
| Used on: |
Replaces NBR in more demanding applications in terms of temperature or chemical resistance |
| Info: |
Similar to NBR mas with a different manufacture process that turns it more resilient to temperature and chemicals. |
| Physically: |
Strong rubber odor, usually without shine |
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Viton® also known as Fluoroelastomer, FKM, Fluorocarbon
| Colour: |
Brown, also in black and green |
| Max temperatures: |
-20 to 200 Celcius |
| Used on: |
Replaces NBR and HNBR in more demanding applications in terms of temperature and chemical resilience. Can also be used as an hydraulic or pneumatic seal. |
| Info: |
Best material for applications where chemical or high temperature resilience is essential. Has little chemical resilience to some ethers, esters and skydrol. Highly used in industries that deal with chemicals. |
| Physically: |
Strong rubber odor, usually without shine and denser than NBR or HNBR |
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Teflon® also known as PTFE, Polytetrafluoroethylene
| Max temperaturas: |
-200 to 260 Celcius |
| Used on: |
Seals, wipers, guide rings, elastic element supports. Needs elastomers for dynamic applications. |
| Info: |
Resilient to a large range of working temperatures. Creates little friction with metallic surfaces. Ideal for guide rings in demanding applications. Strong tolerance for temperatures, chemicals and pressure. |
| Physically: |
Dense, little elastic but looks rigid. |
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PTFE bronze also known as Teflon® bronze filled
| Max. temperatures: |
-200 to 260 Celcius |
| Used on: |
Applications similar to those of PTFE but with a better resilience to abrasion. |
| Info: |
This material is a blend of PTFE with bronze particles. Better resilience to abrasion and extrusion. Used in dynamic sealing along with an elastomer. |
| Physically: |
Dense, little elastic but looks rigid. Bronze particles are visible in its surface. |
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POM
| Max. temperature: |
-50 to 110 Celcius |
| Used on: |
Spacers, guide rings, wear rings, support for elastomers. When the chemical resilience PTFE presents is not necessary, this is the preferred material, due to its low cost. |
| Info: |
Absorbs little water or oils. Excellent to apply in guide rings. |
| Physically: |
Rigid plastic, shiny after machining |
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Other materials by order-only: EPDM rubber, silicone, glass fiber filled PTFE, Nickel filled PTFE among others for special applications.
Viton® e Teflon® are registered trademark from DuPont Dow Elastomers
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