Extreme Temperature Hydraulic Seal for Coal Mine Cylinder Use

• 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, also known as rotary shaft seals, are indispensable for sealing grease, liquids, and dirt. They form a crucial component of any rotating or moving assembly, stabilizing the interface between stationary and dynamic parts in machinery. Typically, an oil seal is composed of three vital elements:
The sealing material, often a robust rubber component, is complemented by sturdy metal casings and resilient springs, crafting a versatile sealing assembly.
Our range includes diverse types like TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and TC4, among others.
We provide a wide array of premium rubber materials tailored for oil seal production, ensuring compatibility with varied operational settings. These top-tier materials withstand a spectrum of chemicals and thrive in extreme temperature conditions, both high and low.
[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.

We offer bespoke non-standard oil seals crafted from specialized materials, including fluorine rubber, silicone rubber, fine rubber, and propylene rubber, to meet unique specifications.

[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 achieves dynamic sealing through the formation of an oil film, facilitated by the interaction between the lip and the shaft. This is enhanced by spring force and the natural elasticity of the materials. Frictional heat during rotation causes the lip to contract, bolstering the seal; while static, it remains in contact, sustaining the seal's integrity.

[Oil seal application fields]
Our oil seals find extensive applications in engines, gearboxes, hydraulic pumps, reducers, and more. They perform exceptionally in environments subject to high temperatures, high speeds, corrosive substances, or where traditional seals have failed. Notably, PTFE oil seals can outlast conventional options by up to 20 times, effectively sealing water, acid, gas, and other challenging media.

[Oil seal selection and installation]
A holistic assessment of shaft rotation speed, temperature, pressure, and medium characteristics is crucial. Install shafts vertically to avoid tilting and lubricate the lip with grease to minimize dry friction.
Product Superiority:

1. We diligently select the finest materials, producing components that exhibit unparalleled performance and stability, enhanced by state-of-the-art automation.
2. Our offerings feature exceptional elasticity and wear resistance, maintaining robustness even in the harshest conditions.
3. With a dedicated team of technical experts, we provide tailored solutions to our clients' specific needs, ensuring timely and effective responses.
4. Our rigorous quality control system underpins our reputation, establishing us as a preferred direct or indirect supplier to esteemed enterprises across the globe.