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1.FKM (Viton)O-Ring Performance Specifications
FKM(Fluoroelastomer),often referred to by the brand name Viton,is engineered for high- temperature and chemically aggressive environments.The fkm o-rings temperature range is rated for continuous service from-20℃ to+200℃,with some grades up to +205℃or higher for short periods.Fluorocarbon (FKM)has excellent resistance to high temperatures,ozone,oxygen,mineral oil,synthetic hydraulic fluids,fuels,aromatics and many organic solvents and chemicals.These as-109 o-ring components offer superior resistance to aggressive solvents,harsh chemicals,and high heat.With high chemical stability,low compression set,and excellent aging characteristics,FKM ensures reliable sealing in delicate pneumatic and fluid systems under thermal load.
2.3D Printer,SMT Machine,and Paste Printer Working Conditions
Advanced manufacturing equipment like industrial 3D printers,SMT machines(Surface Mount Technology),and solder paste printers requires extreme precision and repeatability in high-heat and chemical-exposed environments.In high-end 3D printers,extruder and nozzle assemblies generate localized high temperatures that can degrade standard seals. In SMT machines,vacuum nozzles and pick-and-place actuators operate in environments with solder flux fumes and cleaning solvents,demanding seals that resist chemical attack. FKM o-rings are selected for their outstanding resistance to chemicals,fuels,and aggressive fluxes common in electronics assembly.The AS-109 size is commonly used in precision pneumatic valves,miniature fluid connectors,and compact actuators in these high-tech systems to maintain perfect seals and prevent failures from heat or chemical exposure.
3.AS-109 Size Chart &Dimensions for Precision Electronics
The AS-109 is a small-cross-section O-ring designed for compact spaces and high- accuracy equipment.
|
AS568 Dash No. |
Inside Diameter (ID) |
Cross Section (CS) |
Material |
Hardness |
|
AS-108 |
0.237 in (6.02 mm) |
0.103 in (2.62 mm) |
FKM (Viton) |
75 Shore A |
|
AS-109 |
0.299 in (7.59 mm) |
0.103 in (2.62 mm) |
FKM (Viton) |
75 Shore A |
|
AS-110 |
0.362 in (9.19 mm) |
0.103 in (2.62 mm) |
FKM (Viton) |
75 Shore A |
Conclusion
For the delicate operations of SMT machines,solder paste printers,and high-temperature 3D printing,the fkm o-rings temperature range and chemical resistance provided by the as-109 o-ring are critical for long-term reliability and machine uptime.These seals protect precision pick-and-place systems and ensure consistent performance in thermal and chemical environments.When sourcing parts for high-tech maintenance,always choose FKM to prevent degradation from modern industrial fluxes,solvents,and resins.
