Category Archives: Products
ROD SEAL RBR
STANDARD SEAL DIMENSIONS
DESCRIPTION
The RBR ring, working as buffer ring, has been specially designed to work as main seal, to be used in combination with asymmetrical lip seals. Its function is to maintain working pressure for the second seal. It does not provide full sealing effect so an oil chamber will thus form between the two seals. Thanks to the special profile of the RBR ring, the growing pressure in the space will be released into the cylinder once a certain value is achieved. It works as a valve. It has been also designed to compensate pressure peaks.
TECHNICAL DATA
Pressure: < 400 bar at a temperature of 60° C
Speed: < 0.8 m/s
Temperature: from – 35° C to + 100° C with peaks till 110° C
Fluids: HL and HLP mineral oil
MATERIAL
The proposed material is polyurethane, with high elasticity modulus, fundamental for the sealing, low compression-set and high abrasion resistance. The hardness is 93 Shore A ± 2. For the anti-extrusion ring we propose a polyacetalic resin with high tensile strength.
ASSEMBLING
The assembling is done in closed groove. The polyurethane seal must therefore be fitted before the anti-extrusion ring.
ROD SEAL KO1
STANDARD SEAL DIMENSIONS
DESCRIPTION
The KO1 seal type has been developed to replace or work jointly with stepseals in PTFE, because of the same groove dimension. Internally it has a round groove where an O-ring, can be inserted and housed. The O-Ring acts as energizer for the static and dynamic sealing lips even without pressure. This profile has also excellent results at very low speed and pressure, because of the low friction. The machining of the groove is easier thanks to the reduced axial dimension.
TECHNICAL DATA
Pressure: < 250 bar at a temperature of 60° C Speed: < 0.5 m/s Temperature: from - 35° C to + 100° C, with peaks till 110° C Fluids: mineral oils (see TABLE I, pages 12-13)
MATERIAL
The proposed material is polyurethane, with high elasticity modulus, low compression-set and high abrasion resistance. The hardness is 93 Shore A ± 2, energized with
O-ring in NBR 70.
ASSEMBLING
As for all seal housings, remove any flash or cutting edges.
ROD SEAL DT4
STANDARD SEAL DIMENSIONS
DESCRIPTION
The DT4 rod seal is composed of two rings. The dynamic seal is a ring in filled PTFE while the static seal is an O-Ring also acting as energizer.
TECHNICAL DATA
Pressure: < 600 bar
Speed: < 15 m/s
Temperature: from – 30° C up to + 100° C for the standard type with nitrile OR. Short peaks till 120° C. For a different temperature range, the O-Ring should be replaced by a more suitable model.
MATERIAL
Bronze-filled PTFE for the standard type, and is NBR (Nitrile butadiene rubber) O-Ring
ASSEMBLING
PTFE seals require careful assembling operations in comparison to other types of seals It is necessary to remove flashes and/or cutting edges in the grooves.
The rod seal is usually assembled in the following sequence:
• fit the O-Ring into the groove
• twist the PTFE ring using a mandrel and a
expansion bush;
• calibrate with a plastic conical tool
ROD SEAL KO10
STANDARD SEAL DIMENSIONS
DESCRIPTION
The KO10 seal has small dimensions and has been developed for cylinders used in presence of pressure variation and high speed. The profile has been designed with a shallow groove to ensure tight contact between the static and dynamic part, even in zero pressure situations.
TECHNICAL DATA
Pressure: < 400 bar at a temperature of 60° C
Speed: < 0.5 m/s
Temperature: from – 35° C to + 100° C, with peaks till 110° C
Fluids: mineral oils and fluids
MATERIAL
The proposed
MATERIAL
is polyurethane, with high elasticity modulus, low compression-set and high abrasion resistance. The hardness is 93 Shore A ± 2.
ASSEMBLING
To prevent any damage to the seal, remove any flash and cutting edges in the housing and on the rod. The seal should always be lubricated before
ASSEMBLING
in order to have easier insertion of the rod.
ROD SEAL MA24
STANDARD SEAL DIMENSIONS
DESCRIPTION
The MA24 seal type is similar to the MA5 type with anti-extrusion ring. This seal is recommended when the coupling clearance between the head and the rod cannot be reduced and in the event of high pressure peaks.
TECHNICAL DATA
Pressure: 400 bar with peaks till 500 bar at 60°C
Speed : < 0.5 [m/s]
Temperature: – 35 °C . +100 °C with peaks till +110°C
Fluids : mineral hydraulic fluids
MATERIAL
The proposed
MATERIAL
is polyurethane, with high elasticity modulus, low compression-set and high abrasion resistance. The hardness is 93 Shore A ± 2.
ASSEMBLING
To prevent any damage to the seal, remove any flash and cutting edges in the housing and on the rod. The seal should always be lubricated before
ASSEMBLING
in order to have easier insertion of the rod.
ROD SEAL MA5
STANDARD SEAL DIMENSIONS
DESCRIPTION
The MA5 seal type is similar to the MA1 type, but on the dynamic side, it presents a multifunctional double lip which:
– reduces stick-slip effects thanks because it keeps oil between the secondary lip and the main one;
– stops any external impurities;
– faces the material shrinkage at low temperatures;
– acts as a stabilizer.
TECHNICAL DATA
Pressure: < 400 bar at a temperature of 60° C
Speed: < 0.5 m/s
Temperature: from – 35° C to + 100° C with peaks till 110° C
Fluids: mineral hydraulic fluids
MATERIAL
The proposed material is polyurethane, with high elasticity modulus, low compression-set and high abrasion resistance. The hardness is 93 Shore A ± 2.
ASSEMBLING
To prevent any damage to the seal, remove any flash and cutting edges in the housing and on the rod. The seal should always be lubricated before assembling in order to have easier insertion of the rod.
ROD SEAL MA1
STANDARD SEAL DIMENSIONS
DESCRIPTION
The MA1 seal has a dynamic lip shorter than the static one and it is used in cases of high rod misalignments and possible high pressure.
TECHNICAL DATA
Pressure: < 400 bar, at a temperature of 60° C
Speed: < 0.5 m/s
Temperature: from – 35° C to + 100° C, with peaks up to 110° C
Fluids: mineral hydraulic fluids
MATERIAL
The proposed material is polyurethane, with high elasticity modulus, low compression-set and high abrasion resistance.
The hardness is 93 Shore A ± 2.
ASSEMBLING
To prevent any damage to the seal, remove any flash and cutting edges in the housing and on the rod. The seal should always be lubricated before assembling in order to have easier insertion of the rod.
SEALS ACCORDING TO DRAWINGS
We manufacture and supply seals and other rubber-technical products of all sizes, shapes, materials and quantities. We always find the most economical solution for our clients.
We are experts in the field of sealing so we use a variety of industry standards such as ISO, VDA, internal standards of our customers, etc. All our seals and raw materials are of European origin and are in accordance with REACH and RoHS Directive.
Every day we use various tools such as FMEA analysis, PPAP, the IMF, 8D, etc. We take care of the entire process: from the development of tools to packing the seals. We can also make various rubber products.
Smaller quantities of non-standard seals are produced on our CNC machine which is specifically designed to manufacture industrial seals. Production is immediate and without tooling cost.
EXPRESS SEALS PRODUCTION
We can provide any kind of seal within an hour with the latest and fastest seal producing machine. We can produce different seal sizes – ranging from 4mm in diameter to over 1 meter. We use more than 20 different materials that are always on stock, so we can produce the seals as soon as you need them.
In the below attached PDF file you can see the standard profiles of all sizes that can be machined at our express service. All other profiles and preferences can be programmed quickly, according to your application. Your profile is stored under your code, this way it is always available later on.
We offer the most economical solution with the most modern machinery for rapid production of seals because there are no tooling costs and minimum quantities. We can produce various sizes and profiles of your choice in the immediate time, which means you do not waste your valuable time waiting or processing piston rods, pistons, appliances, etc.
EXPRESS SEALS PRODUCTION
PISTON SEALS
We offer a wide selection of high-quality piston seals. You can choose between hydraulic and pneumatic seals.
Hydraulic piston seals
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Pneumatic piston seals
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