Suzhou Yongxin Technology Co., Ltd. is a supplier of sealing components in motion and control systems, providing sealing solutions for transmission control, automation equipment, and aviation. The company sells various seals, hydraulic, pneumatic, and fluid control products and components. In terms of seals, Yongxin offers hydraulic and pneumatic sealing products, including dynamic seals, static seals, sealing rings, oil seals, gaskets, packings, and more.
Due to different environmental and application conditions, the materials used for rubber sealing components vary, which determines the specific environments and applications for which the developed and produced sealing rings are suitable.

EPDM O-rings, HNBR hydrogenated rubber O-rings, wholesale prices for EPDM O-rings, SILME silicone O-rings, EPDM O-rings, FKM (VITON) fluoroelastomer O-rings,
FLS fluorosilicone O-rings, EPDM O-rings, PU polyurethane O-rings, and more. O-rings (O-ring) have passed certifications such as NSF/FDA (USA), DVG/KTW (Germany), and WRAS (UK). Precision O-rings (O-ring) feature smooth surfaces, no pinholes, no burrs, and an accuracy of +/-0.03 mm to +/-0.08 mm. O-rings (O-ring) are characterized by high-temperature resistance, excellent weather resistance, ozone resistance, and chemical resistance, but poor cold resistance. They are resistant to most oils and solvents, especially acids, aliphatic hydrocarbons, aromatic hydrocarbons, and animal and vegetable oils. The general operating temperature range is -50°C to 250°C. O-rings (O-ring) are used in aerospace, automotive, sensors, medical, pharmaceutical, satellites, valves, pumps, plumbing, electronics, bearings, electrical appliances, and other industries. Yongxin produces EPDM O-rings, large-size fluoroelastomer O-rings, large-specification fluoroelastomer O-rings with diameters ranging from 1mm to 9800mm, EPDM O-rings, matching fluoroelastomer O-rings, and supplies over 20,000 types of fluoroelastomer O-rings with fast delivery and reliable quality.
Applications: Sealing components for chemical plants.
Perfluoroelastomer FFPM (Perfluoroelastomer)
Advantages: · Heat resistance · Excellent chemical resistance · Low outgassing · Excellent plasma resistance
Disadvantages: · Poor low-temperature resistance · Higher material cost · Higher production difficulty
Applications: Perfluoroelastomer products are widely used in the semiconductor industry and information-related industries, including applications in thin-film processes such as PVC, CVD, etching processes, and various high-vacuum sealing processes.
Large-size EPDM O-rings, large-size fluoroelastomer O-rings, large-specification fluoroelastomer O-rings with diameters ranging from 1mm to 9800mm,
Producing O-rings, sealing rings for oil fields, imported EPDM O-rings, O-ring seals, rubber O-rings, silicone O-rings, fluoroelastomer O-rings, waterproof O-rings, O-ring flat washers, O-ring rubber rings, O-EPDM O-rings
"O" ring rubber seals comply with national standard: GB/T3452.1-2005
Product use: For dynamic sealing of hydraulic and pneumatic components (piston seals, piston rod seals) and (axial seals)
Materials: Silicone, fluoroelastomer, nitrile rubber
Operating temperature: -50°C to +200°C Standard source: GB3452.1-92
Operating pressure: ≤32Mpa Replaces: GB3452.1-82
Working media: Hydraulic oil, lubricating oil, air, water
Groove compliance: GB3452.3-88
In the industry, common materials for developing and producing sealing rings include rubber sealing materials, acrylate, and fluoroelastomer sealing materials. Beyond rubber, other materials such as silicone rubber, polyurethane, hydrogenated rubber, and PTFE rubber sealing materials (for sealing ring lip parts) can also be used.
Product use: For sealing pistons in reciprocating hydraulic cylinders. Applications: TPU: General hydraulic cylinders, universal equipment hydraulic cylinders. CPU: Hydraulic cylinders for engineering machinery and high-temperature, high-pressure cylinders. Materials: Polyurethane TPU, CPU, rubber.
Product hardness: HS85±2°A Operating temperature: TPU: -40°C to +80°C, CPU: -40°C to +120°C Operating pressure: ≤32Mpa Working media: Hydraulic oil, emulsion.
YX type hole retaining O-ring
Product use: This standard applies to hydraulic cylinders with working pressures greater than 16MPa when used in conjunction with YX type sealing rings, or to protect sealing rings when the cylinder is eccentrically loaded. Operating temperature: -40°C to +100°C. Working media: Hydraulic oil, emulsion, water Product hardness: HS 92±5A Material: Polytetrafluoroethylene.
Shaft YX type O-ring
Product use: For sealing piston rods in reciprocating hydraulic cylinders. Applications: TPU: General hydraulic cylinders, universal equipment hydraulic cylinders. CPU: Hydraulic cylinders for engineering machinery and high-temperature, high-pressure cylinders. Materials: Polyurethane TPU, CPU, rubber Product hardness: HS85±2°A Operating temperature: TPU: -40°C to +80°C, CPU: -40°C to +120°C Operating pressure: ≤32Mpa, Working media: Hydraulic oil, emulsion.