Heavy-Duty Hydraulic Seal for Coal Mine Cylinder Applications

• Customization: Available
• Material: NBR
• Usage: Engine, Transmission, Rear Axle, Gearbox
• Type: Haplotype
• Speed: High Speed
• Pressure: Pressure Type
• Lip: Composite Lip
• Standard: Standard, Nonstandard
• Applicable Temperature: From Minus 60 Degrees to Plus 300 Degrees
• Scope of Application: Various Chemical Substances
• Custom Specifications: Customizability Can Reach up to 500 Centimeters.
• Transport Package: Packaging Bag, Cardboard Box
• Trademark: Anran
• Origin: China Hebei
• HS Code: 4016931000
• Production Capacity: 100000pieces/Year

Product Description

Product Description

Oil seals, often termed as rotary shaft seals, are indispensable in maintaining the integrity of mechanical systems by effectively sealing grease, liquids, or dirt. As a critical component in rotating and moving assemblies, oil seals ensure a seamless interface between stationary and moving parts within mechanical equipment. Their ingenious design typically comprises three essential elements:
an adaptable sealing material (rubber component), robust metal casings, and resilient springs, making it a highly versatile sealing assembly.
Our range includes a plethora of types such as TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and the innovative TC4, among others.
We present an extensive selection of premium rubber materials meticulously chosen for the fabrication of oil seals, ensuring unparalleled compatibility with diverse operating environments. These high-performance materials are engineered to withstand a wide spectrum of chemicals and extreme temperatures, from blistering heat to frigid cold.
[Oil Seal Material Introduction]

Ding Rubber (NBR)	Temperature resistance of 100ºC, good oil resistance, wear resistance, anti-aging, good sealing effect.
silica gel (VMQ)	Temperature resistance of 200ºC, general oil resistance, high temperature resistance, good waterproof, non-toxic.
Fluorogel (FKM)	Temperature resistance of 280ºC, good oil resistance, wear resistance, high pressure resistance, corrosion resistance.
ethylene-propylene-diene misch-polymere (EPDM)	Temperature resistance of 150ºC, general oil resistance, corrosion resistance.
(PTFE)	Temperature resistance of 280ºC, good oil resistance, wear resistance, high pressure and corrosion resistance.
polyurethane (PU)	Temperature resistance of 90ºC, good oil resistance, wear resistance.

Our expertise allows for the customization of non-standard oil seals, crafted with advanced materials like fluorine rubber, silicone rubber, fine rubber, and propylene rubber, tailored to meet specific requirements.

[Oil Seal Core Structure Type]

Single lip structure	Single channel sealing lip for low pressure reciprocating motion (e. g. automotive crankshaft oil seal)
Double lip structure	Two upper and lower sealing lips, a main seal (contact shaft), a secondary seal (dust), often used in high pressure environment
Composite lip structure	Main lip + dust lip + buffer spring (like type NOK TCV), can withstand both radial and axial forces
labyrinth packing	Multi-channel ring groove design to block oil by throttling effect (suitable for high-speed rotating axis)
Seal the oil swing ring	Metal ring rotating centrifugal oil swing with shaft (commonly used in gearbox gearbox)

[Key Structural Components of the Oil Seal]

Component name	Material selection	function declaration
seal(ing)lip	NBR/FKM/PTFE	Main seal surface, the contact shaft forms a dynamic seal
spring	Stainless steel / carbon steel	Provide lip pretension to compensate for wear
skeleton	PA6/PC	Fixed the sealing lip shape and transfer the mounting stress
Dust-proof lips	polyurethane elastomer	Blocking the entry of solid impurities (optional)
Self-lubricating coating	plumbago/PTFE	Reduce the friction coefficient and extend the life life

[Oil Seal and Sealing Principle]
The oil seal functions by creating a protective oil film through the precise contact between the lip and the shaft, achieving superior dynamic sealing with the aid of spring tension and the inherent elasticity of the material. During rotation, frictional heat causes the lip to contract, optimizing the sealing effect, while maintaining contact when stationary to ensure a continuous seal.

[Oil Seal Application Fields]
Our oil seals find extensive applications in engines, gearboxes, hydraulic pumps, reducers, and other critical equipment. They excel in challenging conditions involving high temperatures, high speeds, corrosive media, and scenarios where conventional rubber oil seals may falter. Notably, PTFE oil seals offer remarkable durability, lasting up to 20 times longer than traditional alternatives, while effectively sealing water, acid, gas, and other media.

[Oil Seal Selection and Installation]
When selecting and installing oil seals, consider the shaft's rotation speed, temperature, pressure, and medium properties comprehensively. Ensure the vertical shaft is installed properly to avoid tilting, and apply grease to the lip to minimize dry friction.
Product Superiority:

1. We meticulously select the most advanced materials and craft parts that exemplify superior performance, stability, and are enhanced with cutting-edge automation technology.
2. Our products are renowned for their exceptional elasticity and wear resistance, guaranteeing consistent performance even in the harshest of environments.
3. Backed by a robust team of technical experts, we provide bespoke product customization and timely solutions tailored to our clients' needs.
4. We adhere stringently to our rigorous quality control system, earning us the status of being a trusted supplier, directly or indirectly, to numerous esteemed enterprises globally.