Are you looking for the best high-temperature furnace manufacturers in China? If so, you’re in the right place. In this article, we’ll compare the top factories that are setting the standard for high-quality, reliable, and innovative furnace solutions. Let’s dive into the leading names and what they have to offer.

High Temperature O-Rings

Product Details: High Temperature O-Rings are made from materials such as Perfluorinated (FFKM) and Tetrafluoroethylene-Propylene (TFE, AFLAS®). FFKM materials can withstand temperatures up to 600°F (316°C), while TFE materials can handle temperatures up to 450°F (232°C). These O-rings are designed to maintain a strong seal through a wide range of temperatures and are suitable for applications that involve significant temperature fluctuations. The maximum temperature recommendations are based on long-term functional service, ensuring reliability for 1,000 hours of continuous exposure. The selection of O-ring material must consider factors such as media (fluid and gas), wear, and application requirements in addition to temperature.

Pros:
– High temperature resistance: FFKM up to 600°F (316°C) and TFE up to 450°F (232°C…
– Strong seal through a wide range of temperatures.
– Suitable for applications with significant temperature fluctuations.
– Reliable for 1,000 hours of continuous exposure at maximum temperature.

Cons:
– Temperature exceeding the maximum rating can cause hardening, embrittlement, and…
– Compression set can occur due to loss of elasticity when exposed to high tempera…
– Material selection requires careful analysis of all application aspects, includi…

High Temp O Rings

Product Details: High-temperature O-rings are designed to withstand elevated temperatures, often up to 450°F (232°C) or more. They are made from materials such as Viton (FKM), PTFE, silicone, HNBR, Kalrez®, and Chemraz®. These O-rings are available in various sizes, including standard, inch, and metric sizes, and can be used in applications like machine design, chemical processing, oil and gas, aerospace, and life sciences. They are also available in different profiles, such as round and square, and can be made to order for non-standard sizes.

Pros:
– High temperature resistance up to 450°F (232°C) or more
– Excellent chemical resistance, especially with materials like Viton, PTFE, and K…
– Low friction coefficient, particularly with PTFE, ensuring easy installation and…
– Ability to maintain seal integrity in harsh environments, including exposure to…
– Available in various materials and profiles to suit different applications
– High purity options available for clean room environments

Cons:
– Material properties can change with increased temperatures, leading to potential…
– Some materials may soften or harden at high temperatures, affecting sealing effe…
– Incorrect material selection for the application can lead to accelerated wear, l…
– Higher cost compared to standard O-rings due to the specialized materials used
– Potential for uneven thermal expansion affecting contact pressure and seal integ…

Perfluoroelastomer FFKM O ring Manufacturer

Product Details: FFKM O-rings are made of perfluoroelastomer compounds with a higher fluorine content than FKM fluoroelastomers. They are known for their excellent resistance to chemical corrosion, organic and inorganic acids, alkali, ester, ether, ketone, aldehyde, superheated water, and steam. The maximum operating temperature is 230 °C (446 °F), and they can be fabricated into various forms such as O-rings, diaphragms, gaskets, rubber strips, and rubber plates. Key mechanical properties include a hardness of Shore A 78, 100% modulus of 9.4 MPa, tensile strength of 15.9 MPa, elongation at break of 130%, and a compression set of 20.7% after 70 hours at

204 °C[1].

Pros:
– High temperature resistance up to 620 °F (326 °C)[1][3] – Excellent chemical resistance to a wide range of aggressive chemicals, including…
– Long service life and reliability in dynamic and static applications[3] – Low off-gassing and extractable levels, making them suitable for clean environme…
– Excellent compression set resistance, ensuring long-term sealing efficiency[4]

Cons:
– Significantly more costly than standard FKM materials[3] – Poor low temperature performance[3] – Lower tensile strength compared to some other elastomers[4]

Stainless O Ring Manufacturer in China – HM

Product Details: The manufacturing process of stainless steel O rings at HM involves precision CNC machining, starting with the selection of high-quality stainless steel material. HM offers custom and standard designs to cater to various industries. The O rings are made from different grades of stainless steel, including 302, 303, 301, 304, 304L, 316, and 316L. These O rings are known for their corrosion resistance, high strength, and durability, making them suitable for applications in marine, chemical, and other harsh environments.

Pros:
– Made from high-quality stainless steel material for corrosion resistance and hig…
– Custom and standard designs available to meet various industry needs.
– Precision CNC machining ensures high accuracy and reliability.
– Suitable for use in harsh environments such as marine and chemical industries.

Cons:
– No specific information on cons is provided on the website, but potential drawba…

High-quality O-ring Seals Manufacturer-Topa

Product Details: O-rings are round seals that create a mechanical seal between objects to prevent leakage of liquids and gases. They are available in various materials such as polyurethane, neoprene, silicone, Buna-N, PTFE, etc., depending on the environment, pressure, and temperature. O-rings are commonly used in gas cylinders, pumps, connectors, and other appliances across industries like agriculture, industry, oil and gas, food, and construction.

Pros:
– Stop foreign contaminants
– Maintain lubrication between objects
– Lighter in weight
– Easy to install and remove
– Resistant to abrasion
– Adaptable to extreme environments

Cons:
– Can leak due to incorrect installation, wrong size, excessive pressure, chemical…
– Require proper selection of size and material to function effectively
– May have limited lifespan depending on the material used

Custom O-ring Manufacturer and Wholesale Supplier

Product Details: Hongju Silicone offers custom and wholesale O-ring seals made from high-quality silicone and rubber materials. These O-rings are designed for various applications, including engines, pumps, cylinders, connectors, and valves. They are available in standard and custom sizes, and the company follows ISO3601 standards for dimensions and tolerances. The manufacturing process includes O-ring design, tool making, color mixing, compression molding, quality inspection, and packaging. Hongju also uses liquid silicone rubber upon request and provides free samples for testing[1][2][5].

Pros:
– High-quality raw materials and precision molds ensure strong resistance to water…
– Wide selection of stock items at wholesale prices, along with customization capa…
– Strict quality control over the production process, including manual and machine…
– Fast delivery and good customer service.
– Low minimum order quantities (MOQs) and free samples for testing.
– Ability to meet special needs by redesigning the mold.

Cons:
– Silicone O-rings have poor tear resistance and are not ideal for dynamic applica…
– Fluorosilicone O-rings have poor hot air resistance compared to silicone rubber[…

China Silicone O Ring

Product Details: Silicone O-rings are synthetic elastomers based on silicon with pendant organic groups such as methyl, phenyl, and vinyl. They are known for their excellent heat, ozone, and corona resistance, good dielectric stability, and resistance to many oils, chemicals, and solvents. They maintain flexibility at low temperatures but have low tensile strength and wear and tear resistance. Silicone O-rings are available in various types, including VMQ, PVMQ, and fluorosilicone, and can be formulated to meet FDA, USP Class VI, and other industry standards.

Pros:
– Excellent heat, ozone, and corona resistance
– Good dielectric stability and resistance to many oils, chemicals, and solvents
– Maintains flexibility at low temperatures
– Non-toxic and biocompatible, suitable for medical and food applications
– Can be formulated to meet specific requirements such as color, temperature range…
– Resistant to UV light, water, oxygen, moisture, and steam

Cons:
– Low tensile strength
– Low wear and tear resistance
– Not suitable for concentrated acids and alkalis, steam over 120°C (248°F), petro…

O-Rings, Rubber Seals – Best China Manufacturer & …

Product Details: Savvy manufactures a wide range of o-rings, including traditional standard o-rings, encapsulated o-rings, backup-rings, and x-rings. They offer various materials such as NBR, FKM (Viton), Silicone, EPDM, HNBR, CR, Aflas, and more. The hardness of o-rings is measured in Shore A, typically ranging from 40 to 90, with 70 being the most commonly used. O-rings can be produced in various colors, and custom colors are available with a provided RAL or Pantone color number. Savvy has thousands of molds and can arrange fast delivery via door-to-door courier.

Pros:
– High-quality and diverse range of o-ring materials and shapes
– Fast delivery options via door-to-door courier
– Low mold/tooling cost for custom o-rings
– Good wear resistance, oil resistance, and corrosion resistance depending on the…
– Wide application in various industries such as automotive, machinery, and food i…

Cons:
– Low hardness o-rings can be prone to peeling, installation damage, extrusion, an…
– High hardness o-rings can be inconvenient to install
– Specific materials have limitations, e.g., silicone o-rings have a different har…

Top 10 Viton O-ring Manufacturers and Suppliers in China …

Product Details: Viton® O-Rings are made from fluorocarbon materials, specifically fluoroelastomers (FKM), known for their excellent chemical and temperature resistance. They are available in various types such as A, B, F, GLT, and GFLT, each with different fluorine content and properties. Standard temperature range is -20°F to 400°F (-29°C to 204°C), and standard hardness is 70-75 Shore A. They are widely used in chemical, automotive, aerospace, and industrial applications.

Pros:
– Excellent resistance to acids, fuels, mineral and vegetable oils and greases, al…
– High heat resistance with situational service life above 200°C.
– Excellent resistance to aging and ozone.
– Low gas permeability and low compression set.
– Available in various formulations to meet specific application needs, including…
– High chemical resistance and durability in demanding industrial applications.

Cons:
– Not recommended for use with steam, amines, or polar solvents.
– Limited low-temperature flexibility in some types, though improved in GLT and GF…
– Fair to good cold resistance and water steam resistance.
– Fair electrical properties.

China Supplier High Temperature Rubber O Rings For Sale

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About High-Temp O-Rings Factories in China

What materials are commonly used for high-temperature O-rings in Chinese factories?

High-temperature O-rings in Chinese factories are often made from materials like FKM (Viton), FFKM (Perfluoroelastomer), and silicone. FKM is known for its excellent resistance to high temperatures and chemicals, while FFKM offers even higher temperature and chemical resistance. Silicone is also popular, especially in medical and food industries, due to its non-toxic and high-temperature resistant properties.

How do Chinese manufacturers ensure the quality of their high-temperature O-rings?

Chinese manufacturers like Hongju and Savvy Rubber ensure quality through strict quality control processes. This includes designing and testing the O-rings, using high-quality raw materials, and employing precision molds. They also conduct both manual and machine testing to ensure the products meet the required standards, such as those specified by ISO3601.

Can I customize the size, material, and color of my high-temperature O-rings?

Yes, you can customize your high-temperature O-rings to meet your specific needs. Manufacturers like Hongju and Savvy Rubber offer customization options for size, material, and color. They can produce O-rings in various standard and metric sizes, use different materials such as NBR, FKM, and silicone, and even offer various colors based on your requirements.

What is the typical hardness range for high-temperature O-rings, and how is it measured?

The typical hardness range for high-temperature O-rings is usually between Shore A 60 to 90. The hardness is measured using a Shore A scale durometer. For most applications, a hardness of 70 is generally suitable, but this can vary depending on the specific use and sealing pressure requirements.

How long does it take to manufacture and ship high-temperature O-rings from China?

The manufacturing and shipping time for high-temperature O-rings from China can vary but is generally not very long. Production typically takes a few days to a few weeks, depending on the complexity of the order and the manufacturer’s workload. Shipping times can range from a few days to a couple of weeks, depending on the shipping method chosen. Manufacturers often provide estimates based on your specific order requirements.