Industrial Silicone Rubber O-Rings
- YiDa
- Dalian,China
- 15-20 days
- 2 billion/year
1. Our silicone rubber o-ring, depending on material, can survive the extreme temperature ranges of -60°C to 230°C very stably, including sealing capability.
2. Before releasing each batch of our silicone o rings, in addition to appearance + critical dimension, we perform the performance tests randomly only on some batches.
3. We provide performance and quality test report as well as the related test video, that enables customers to check and purchase not hesitatefully.
As industrial sealing components, silicone rubber O-rings are indeed very simple parts at first sight. But even very small variations can lead to leaking media, damaged seals, or even failure of the entire equipment. Therefore, in order to avoid occurrences of this nature, we produce the silicone O rings from extremely refined molds and perform thorough inspections at the key points. Selecting the right materials is our top priority, we always opt for high-performance silicone compounds enabling the seals to operate in a wide temperature range without becoming hardened or brittle even in very harsh environments.
Silicone Rubber O-Ring Overview:
We manufacture our transparent silicone O rings either with food-grade or industrial-grade materials.
They have a wonderful elasticity and excellent sealing properties. Besides that, they are very versatile, kind to the environment, and resistant to sealing at high temperatures.
Specifications and Parameters:
| Categories | Options/Standards | Description |
| Material | Silicone rubber | Manufactured via vulcanization using food-grade or industrial-grade formulations. |
| Standard System | GB / ASTM / JIS standards | Inner diameter, outer diameter, and cross-section diameter all meet standard specifications. |
| Hardness Range | Shore A 40–85 | 70 Shore A is the standard choice; 60 Shore A is suitable for low-pressure vacuum applications. |
| Standard Colors | Transparent / White / Black / Red | Custom colors available. |
| Product Style | O-rings / Flat washers / Custom-shaped rings | Comprehensive range of styles; custom molds available for non-standard shapes. |
| Common Wire Diameters | 1.0mm / 1.5mm / 1.8mm / 2.0mm / 2.62mm / 3.53mm / 5.33mm / 7.00mm | Full range of cross-section sizes supported; custom diameters available upon request. |
| Quantity/Delivery | In-stock (immediate shipment) / Made-to-order (MOQ: 1,000) | Standard sizes ship within 15 days; please contact us for non-standard custom orders. |
| Temperature Range | -60°C to 230°C (depending on compound formulation) | Resistant to hardening, softening, and cracking in both cold and hot environments. |
| Tensile Strength and Elongation | 5.0 MPa – 12.0 MPa;150% – 400% | Tensile strength and elongation vary depending on hardness and formulation. |
| Compression Set | 15% – 25% (120°C × 1,000h) | Deformation increases with higher temperatures and prolonged compression. |
| Media Compatibility | Resistant to fresh water, air, and weak acids/alkalis | Suitable for sealing standard industrial fluids. |
| Environmental Compliance Rating | Uses FDA-compliant compounds and REACH-compliant materials. | Pure material—odorless and free from harmful substances. |
Key Performance Characteristics:
1. Wide Operating Temperature Range.
It still retains its shape rather well when the temperature ranges from -60°C to 230°C. This is why it is great for diverse uses like extremely cold storages in the polar regions and top temperature ovens. Also, the matter doesn't suffer from cold-induced brittleness, so the facilities may be both physically and functionally in more spots without being worried about the composition as a limiting element.
2. Safety and Durability.
Transparent silicone O rings made out of FDA-certified materials are extremely safe for use in contact with food and drinking water. Besides, the product is very resistant to UV and ozone, so it will not yellow or crack even after a long period of being outdoors or in a sealed, hot, high-pressure environment. That is why it is helpful in lengthening the intervals between equipment maintenance and decreasing the replacement costs over the long term.
3. Sealing Performance.
When the compression set is at the level of 15%-25% (120°C x 1000h), the O-ring will be capable of regaining its original shape fast enough to ensure that the sealing surfaces inside it are tightly sealed. Also, the O-ring enables the sealing to be water- and dust-proof, and it will hardly be affected by changes in the air and fluid pressure. This is why it is a good choice for sealing purposes both at the standstill and with a slight speed of movement. In addition to sealing, the silicone O-ring is able to provide electrical insulation and vibration-dampening features, which are helpful for anti-slip and noise-reduction effects.
4. Flexible Delivery Options.
Our way of working consists of two sides: standard and customized solutions. We have a huge number of standard size products (which conform to the GB, ASTM/AS568, and JIS standards) in stock that can be sold immediately. Besides, we are capable of making bespoke products with different hardness degree (40-85 Shore A), colors and even unusual shapes made according to customer drawings for the special needs of the particular machinery.
The Silicone Sealing Rings We Supply Are Suitable for the Following Industrial Applications:
1. Household appliances (e.g., coffee machines, rice cookers): This is a great choice for items exposed to the direct contact of hot steam or acidic liquids such as coffee oils or fruit juices.
2. Plumbing, sanitary ware, and water purification equipment: Its sealing features are top-notch, completely sealed without leaving room for valve cores or filter cartridge interfaces even during rapid temperature changes.
3. Instrumentation and fan ducting: Thanks to its vibration-damping properties, it prevents the transfer of pipeline vibrations and thus protects very sensitive measurement elements.
4. Electronics, electrical appliances, and lighting fixtures: It keeps dust and insects out, while at the same time it provides a cushion against the stress of thermal expansion and contraction, hence protecting fragile electronic solder joints.
5. Automation equipment and hardware components: This can also reduce machine downtime due to adjustments with low-to-medium speed automation devices and at the same time, it provides the anti-slip positioning feature.
Yida Rubber: Your Premier Choice for Silicone Sealing Rings.
Our company was established in 2006 by a team of professionals who have a combined experience of 30 years in the manufacturing sector. We are operating a large production plant, covering an area of 37,000 square meters, with a staff of 450 individuals.
We not only have branches in Vietnam and Japan but also besides those 2 locations, our annual production capacity exceeds 2 billion units, which places us among the major first-tier manufacturers of rubber sealing rings.
Partnerships and Exports.
Our products feature incomparable quality and competitiveness. At present, we export our products to different regions, including Southeast Asia, Europe, South Africa, etc. Moreover, we have been cooperating for a long time with different huge companies, locally and internationally, such as SMC, Omron, Siemens, Panasonic, Minebea, Eppendorf, ALPINE, etc. Some of our milestones were being granted the title "Excellent Supplier" by SMC in 2023 and also we were recognized as "Global Strategic Partner" by Omron.
Our Certifications.
The company has received several certificates, including ISO9001, ISO14001, and IATF16949, and runs a CNAS-accredited lab. We have 52 patents, 4 software copyrights and over 1,000 secret recipes for materials, making sure we deliver good quality to our customers.
FAQ:
1. Is it normal for silicone sealing rings to turn yellow after use?
The faint yellowing of heat resistant silicone O rings after prolonged exposure to high temperatures or certain medias is typically an indication of aging, which is a natural process, and the sealing performance in the short term remains unaffected; if the application is going to be long term, we recommend selecting translucent or high-temperature specifically formulated ones.
2. Can your heat resistant silicone O rings withstand long-term use at 230°C? Will they age rapidly?
If the equipment is only used occasionally, the seals at 230°C will still keep their dimensions almost unchanged. On the other hand, if you are planning to run the equipment for extended periods in very hot atmosphere (e.g. ovens constantly above 200°C), then it would be a good idea to go for our FKM (fluoroelastomer) and special high temperature grade silicone products.
3. How should I choose between Shore A hardness levels of 40 and 85?
· Shore 70A: Suitable for most static sealing and general industrial fluid sealing applications.
· Shore 60A: Suitable for low-pressure vacuum systems or applications involving uneven sealing surfaces.
· Shore 80–85A: Suitable for high-pressure hydraulic systems or dynamic sealing applications involving frequent reciprocating motion.
If you could tell us the exact details of the conditions under which the equipment will operate (pressure, medium, temperature, and type of motion), then we could suggest the best solution.
4. Can food-grade materials be used for direct contact with drinking water or food? Is there any certification related to this?
Certainly. Our whole assortment has been certified for environmental compliance by FDA as well as REACH. On top of that, our products perfectly fit the following applications: water purifier seals, coffee machine, rice cooker/kitchenware seals, and other drinking-water-contact uses.
