Blog Archives
WIPER PO2 – NBR
STANDARD SEAL DIMENSIONS
DESCRIPTION
The function of the PO2-NBR wiper is cleaning the rod while return into position, blocking external impurities. It is made up of an external, grinded metal cage core part glued to a NBR element. The groove is open and makes easier the design of the seat.TECHNICAL DATA
Speed: < 1 [m/s]] Temperature: - 30 °C . +100 °C mescola NBR Fluids: atmospheric factors ,water, sand,etc.
MATERIAL
The wiper material is a nitrile rubber NBR 90 Shore A with steel core AISI 1010.ASSEMBLING
The assembling is done in open groove. Remove flashes and cutting edges to allow better installation of the wiper. Warning: The housing of the wiper must be within the machining tolerance. Not observed tolerances may cause the extrusion of the product during the operations.WIPER PO2
STANDARD SEAL DIMENSIONS
DESCRIPTION
The function of the PO2 wiper is to clean the rod while returning to position, blocking external impurities. It is made up of a metal core bonded to a polyurethane element. The groove is open and allows easier design of the seat.
TECHNICAL DATA
Speed: < 0.8 m/s
Temperature: from – 35° C to + 100 ° C with peaks till 110° C.
Fluids: atmospheric factors, water at a temperature below 60° C, mineral oils
MATERIAL
The material of the wiper is a polyurethane with a hardness of 93 Shore A and steel core.
ASSEMBLING
The assembling is done in open groove. Remove flashes and cutting edges to allow better installation of the wiper. Warning: The housing of the wiper must be within the machining tolerance. Not observed tolerances may cause the extrusion of the product during the operations.
WIPER PO16
STANDARD SEAL DIMENSIONS
DESCRIPTION
The PO16 wiper has a high flexible wiping lip on the dynamic side and a strong, shorter, protruding lip on the static side. This special profile keeps the rod and the static side where it is housed free from any impurity, waste or water. Impurities would damage the seal and corrode the inner part of the cylinder.
TECHNICAL DATA
Speed: < 1 m/s
Temperature: from – 35° C to + 100° C with peaks till +110° C
Fluids: water at room temperature, mineral oils
MATERIAL
The material used is a polyurethane with a high modulus of elasticity, low compression set and high wear resistance. Its hardness is 93 Shore A ± 2.
ASSEMBLING
It is not very problematic as it can be done in semiopen groove located in the nearest part outside the cylinder. Remove cutting edges and flashes to avoid the scratching of the wiper during the installation.
PISTON SEAL DU3
STANDARD SEAL DIMENSIONS
DESCRIPTION
The DU3 type mono-block piston type DU3 is made of NBR nitrile rubber hardness 75 Shore A vulcanized on a metal insert. It is normally used in pneumatic applications, in single and double effect cylinders. The profile with rounded edges improves the sliding and avoids Stick-Slip. The groove leads lubricant through the two sealing lips, ensuring the axial movements linearity for long time. The sliding direction spacers, self-align piston and sleeve in case of heavy radial loads. The piston presents, on both sides of the internal part, some grooves helping breakaway during the first reverse gear.
TECHNICAL DATA
Pressure: < 20 bar
Speed: < 1 m/s
Temperature: from – 30° C up to + 100° C
Fluids: air (lubricated or not), grase, etc.
MATERIAL
The material used is a combination of nitrile rubber NBR 75 Shore A and steel insert.For high temperature application we could also provide FKM compound instead of NBR compound.
ASSEMBLING
Remove sharp edges at the Bore-Cylinder entry to avoid seal damages. Grease the piston before installation.
PISTON SEAL SPS/N
STANDARD SEAL DIMENSIONS
DESCRIPTION
The seal type SPS / N is a rod seal for pneumatic cylinders. The SPS/N can also be used for pneumatic valves where allowed by the overall dimensions.The reduced dimensions of the seat allows fast and simple machining operations. This symmetric profile allows easier installation. The special spring shape ensure a system sliding even at very low pressure.
TECHNICAL DATA
Pressure: < 12 [bar]
Speed: < 1 [m/s]]
Temperature: from – 20 °C to +100 °C mescola NBR from -15 °C to +150 °C mescola FKM
Fluids: Lubricated air, grease and mineral oils
MATERIAL
Standard material is NBR 70 Shore A.
On demand material FKM 75 Shore A
ASSEMBLING
It is important to remove flashes or cutting edges in the housing to avoid damages.
PISTON SEAL SPS
STANDARD SEAL DIMENSIONS
DESCRIPTION
The SPS rod seal has been designed for pneumatic cylinder applications. The SPS can also be used for pneumatic valves where allowed by the overall dimensions. Moreover a shorter machining of the system can be obtained thanks to the reduced overall dimensions. The profile is rounded in the middle of the dynamic lip and it has two projections on the static lip. This symmetric shape allows easier installation. The special spring shaped profile ensures high flexibility in the system even at low pressure.TECHNICAL DATA
Pressure: < 20 bar Speed: < 1 m/s Temperature: from -30° C up to +90° C Fluids: air with or without lubrication, mineral oils or grease
MATERIAL
Standard polyurethane 90 Shore A.
Alternative polyurethane 85 Shore A.
ASSEMBLING
It is important to remove flashes or cutting edges in the housing to avoid damages.PISTON SEAL MA23
STANDARD SEAL DIMENSIONS
DESCRIPTION
The MA23 seal has been specifically designed either for pneumatic compact short stroke cylinders and single/double effect cylinders. The guiding element is integrated on the seal. Specific notches keep the lubricant grease maintaining a sliding effect on the piston for long time. The magnet is located between the two opposed gaskets. For specific needs or problems, our technical office is at your complete disposal with tailor made solutions.TECHNICAL DATA
Pressure: < 20 bar Speed: < 1 m/s Temperature: from -30° C up to +90° C Fluids: air with or without lubrication, mineral oils or grease
MATERIAL
Standard polyurethane 90 Shore A.
Alternative polyurethane 85 Shore A.
ASSEMBLING
It is important to remove flashes or cutting edges in the housing to avoid damages. The installation is made by overlapping the seal on the piston diameter. Warning: the piston must be correctly shaped according to the drawing of the MPS dimensions table.PISTON SEAL MA22
STANDARD SEAL DIMENSIONS
DESCRIPTION
The MA22 seal has been specifically designed either for pneumatic compact short stroke cylinders and single/double effect cylinders. The guiding element is integrated on the seal. Specific notches keep the lubricant grease maintaining a sliding effect on the piston for long time. The magnet is located between the two opposed gaskets.TECHNICAL DATA
Pressure: < 20 bar Speed: < 1 m/s Temperature: from -30° C up to +90° C Fluids: air with or without lubrication, mineral oils or grease
MATERIAL
Standard polyurethane 90 Shore A.
Alternative polyurethane 85 Shore A.
ASSEMBLING
It is important to remove flashes or cutting edges in the housing to avoid damages.The installation is made by overlapping the seal on the piston diameter. Warning: the piston must be correctly shaped according to the drawing of the MPS dimensions table.
PISTON SEAL MA21-NBR
STANDARD SEAL DIMENSIONS
DESCRIPTION
The MA21-NBR is a lip seal in NBR 70 Shore A used in single cylinder and double effect pistons. Created with a rounded dynamic lip which moves even at very low pressure. On the static and dynamic lip, there’re protrusions avoiding any possibility of reversion in the groove, even case of inversion without pressure. There are also notches on the base and on the side avoiding the possibility of seal ejection when, in consequence of micro-leakages, there’s pressure between the two seals.TECHNICAL DATA
Pressure: < 20 bar Speed: <= 1 m/s Temperature: from - 30° C up to + 100° C Fluids: lubricated air
MATERIAL
Standard material is a compound NBR 70 Shore A. For different applications HNBR, EPDM, FKM and VMQ compounds can be also supplied.ASSEMBLING
Eliminate sharp edges and protrusions on the piston to avoid, seal damages during the assembling. Grease the seal on the piston before fitting.PISTON SEAL MA21
STANDARD SEAL DIMENSIONS
DESCRIPTION
The MA21 piston seal has been designed for single and double action pneumatic cylinders. The deep groove between the dynamic and the static lip, together with back-to-back lips radius, enhance seal sliding, even where there is a lack of environmental lubrication. The reduced dimensions, together with the high flexibility of theMATERIAL
, also facilitate installation in closed grooves.TECHNICAL DATA
Pressure: < 20 bar Speed: < 1 m/s Temperature: from - 30° C up to + 90° C Fluids: air with or without lubrication, mineral oils or grease
MATERIAL
Standard polyurethane 90 Shore A.
Alternative polyurethane 85 Shore A.











