| Material: | Graphite PTFE |
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| Application: | Compressor |
| Engine Type: | CNG |
| Transport Package: | Export Carton |
| Specification: | customized by drawing |
| Trademark: | hongda |
| Samples: |
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| Customization: |
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Audited Supplier PTFE piston ring are made of polymer materials and prevent metal-to-metal contact between moving parts in a working hydraulic cylinder. Compared to metal guides, polymer guides provide the following advantages in hydraulic cylinders:
significantly longer service life
work more smoothly against the cylinder bore and the sealing surfaces
avoid wear of cylinder surfaces despite the presence of contamination particles
high resistance to insufficient lubrication at low speeds
larger contact area due to higher degree of elastic deformation distributes the load and reduces stress to counter-surface
certain self-lubricating properties
Hongda supplies different precision machined guide rings with different polymer materials and sizes, which make them appropriate for a wide variety of operating conditions and applications.
PTFE + bronze
Used preferably for hard counter running surfaces; is a standard material in hydraulics
PTFE + carbon/graphite
Used with softer counter running surfaces such as stainless steels, aluminum and bronze, also preferably where the media water and steam play a role.
• by keeping a large stock of the semi-finished materials used by our regular customers, we can meet urgent requests and have quick turnaround
• In-house manufacturing of semi-finished rods/tubes for CNC,with multiple tools ensure the best optimization of nominal diameters so as to offer dimensions as close as possible to the finished products to be made,reducing swarf,machining times and related costs.
• In-house CNC machining of all kinds of soft seal materials including seats&inserts,O-rings,back-up rings,piston seals,gasket,bearing... according to customers' drawing.Production facilities are equipped with last generation machinery (CNC milling and turning, automatic and sliding head stock lathes) that work round the clock for high volume production.
• a wide range of sizes up to a diameter of 650mm,make us the partner of choice for industrial machined parts of high-end OEMs.
• with multiple tools ensure the best optimization of nominal diameters so as to offer dimensions as close as possible to the finished products to be made,reducing swarf,machining times and related costs.
Production facility
Suppliers with verified business licenses
Audited Supplier 
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