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China, Chinese Cylinder Spgw Bronze PTFE POM Piston Combined Seal1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Sealing GasketsSeal RingSealsHydraulic Seal
Guangzhou NextGen Technology CO.,LTD
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Product Description Hydraulic seals and pneumatic seals are designed as per the cylinder working pressure, cylinder speed, operating temperature, working medium and application.Hydraulic seals are generally relatively soft, non-metallic rings captured in groove or fixed in a combination of rings, forming a seal assembly, to block or separate fluid in reciprocating motion applications. Hydraulic seals are vital in machinery. Their use is critical in providing a way for fluid power to be converted to linear motion. Not only must the hydraulic seals prevent leakage of fluid from the Cylinder, but hydraulic seals must also withstand high pressures, extreme temperatures and transverse forces within the cylinder. In such applications, the function of Hydraulic Seals goes far beyond preventing fluid leakage.Hydraulic seals can be made from a variety of materials such as polyurethane, rubber or PTFE. The type of material is determined by the specific operating conditions or limits due to fluid type, pressure, fluid chemical compatibility or temperature.A static hydraulic seal is located in a groove and sees no movement - only sealing within its confined space, acting like gasket.A type of dynamic hydraulic seal called a rod seal is exposed to movement on its inner diameter along the shaft or rod of a hydraulic cylinder.A type of dynamic hydraulic seal called a piston seal is exposed to movement on its outer diameter along the tube or bore of a hydraulic cylinder.A hydraulic seal is used to contain fluids and maintain the hydraulic pressure (piston seal, rod seal, back-up ring), to stop the inlet of impurities and to preserve the lubricating film on the rod (wiper seal) and to resist any deformation under a radial load by guiding the piston and rod (wear ring and guide strip).NextGen Tech has a complete range of hydraulic seals and we can also assist you in creating custom-made seals for linear and static hydraulic applications. Seal FunctionsEach dynamic seal in a hydraulic cylinder has a special function to contribute to the performance of the system.Piston Seal FunctionsActs as a pressure barrier and prevents fluid passing the piston; important for controlling the cylinder motion or maintaining the position at restRod Seal FunctionsAct as a pressure barrier and keeps the operating fluid inside the cylinderRegulates a film of fluid on the surface of the piston rod as it extends; important to inhibit rod corrosion and lubricate the wiper and rod seal itselfAccept the lubrication film back into the cylinder when the rod retractsBuffer Seal FunctionsProtect the rod seal from fluid pressure spikes in excess of system pressureAttenuate the fluctuations in system pressure, thereby improving rod seal performance by allowing the rod seal to deal with more constant or gradually changing pressureAct as an internal excluder to keep system contaminants, such as metal particles from damaging the rod sealWiper Seal FunctionsPrevent external contaminants from entering the cylinder assembly and hydraulic system (pump, reservoir etc)Accept the lubrication film back into the cylinder when the rod retractsGuide Rings (rod and piston) FunctionsPrevent metal to metal contact between componentsReact to radial loads caused by side loads on the cylinder assemblyDescription Of SPGWThe SPGW Seal is a high-pressure heavy-duty piston seal with excellent leakage control and superior extrusion and wear resistanceThe SPGW seal is a combination of a PTFE based slipper seal energised by an elastomer profile ring and completed with two Back-up rings (POM). It is manufactured with a predefined interference fit, which together with the squeeze of the elastomer part ensures a good sealing effect even at low system pressure. At higher pressures the elastomer part is energised by the system pressure and consequently activates the slipper seal in the radial direction.The Back-up rings prevent the slipper seal from extrusion and ensure a long service life even under harsh conditions. Technical dataTemperature-40°C / +100°CPressureUp to 45MPaSpeedUp to 1.5m/sMediasMineral oil based hydraulic fluids /water oil and glycol / oil emulsionsMaterialElastomer NBRFriction ringBronze-filled PTFEBack-up ringsPolyoxymethylene (POM)AdvantagesLow friction coefficient; no stick-slip effectPossible increase in extrusion gapsExcellent extrusion resistance even during pressure peaksExcellent abrasion resistanceAssembled by deformation ApplicationsThe SPGW seal is the recommended sealing element for double acting pistons of hydraulic cylinder working in very harsh conditions such as: Excavators, Mobile machinery, Heavy duty hydraulic cylinders Part numberBore diameterGroove diameterSeal heightGroove width?D1 H9?d1 h9H1L1 0/+0.20SPGW40*30*940308.59SPGW45*35*945358.59SPGW50*36*950368.59SPGW55*41*955418.59SPGW60*46*960468.59SPGW63*48*11634810.511SPGW65*50*11655010.511SPGW70*55*11705510.511SPGW75*60*11756010.511SPGW80*65*11806510.511SPGW85*70*11857010.511SPGW90*75*11907510.511SPGW95*80*11958010.511SPGW100*85*12.5100851212.5SPGW105*90*12.5105901212.5SPGW110*95*12.5110951212.5SPGW115*100*12.51151001212.5SPGW120*105*12.51201051212.5SPGW125*102*1612510215.516SPGW130*107*1613010715.516SPGW130*116*17.51301161717.5SPGW135*112*1613511215.516SPGW140*115*1614011515.516SPGW140*117*1614011715.516SPGW150*127*1615012715.516SPGW150*134*1615013415.516SPGW160*137*1616013715.516SPGW170*147*1617014715.516SPGW180*157*1618015715.516SPGW185*162*1618516215.516SPGW190*167*1619016715.516SPGW200*177*1620017715.516SPGW210*187*1621018715.516SPGW220*197*1622019715.516SPGW225*202*1622520215.516SPGW230*207*1623020715.516SPGW240*217*1624021715.516SPGW250*222*17.52502221717.5SPGW260*232*17.52602321717.5SPGW270*242*17.52702421717.5SPGW280*252*17.52802521717.5SPGW300*272*17.53002721717.5SPGW320*292*17.53202921717.5Installation InstructionsFAQ1.our price:Our price is not the lowest one, but compared with the same quality level product,ours is the best one.2. how can we guarantee quality?Always a pre-production sample before mass production;Always final Inspection before shipment;3.what can you buy from us?Kind: Oil Seals,O-ring, Rod/Piston seal, Gas seal, Guide elements, Large sized Seals Customized Seals.Material: NBR/EPDM/FKM/Silicone/HNBR/PU4. Shipping:Quickly delivery, with several delivery ways, such as DHL/FEDEX/UPS/TNT express, Air and Ocean shipping way. We have several express accounts and can help you save cost. 5, about customized Service:Drawings or samples, it is enough. We can produce colored rubber seal just based on your drawing or samples with kinds of colors. We also can give the professional advice based on your requirement.
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