High Pressure Hydraulic O-Rings
- YiDa
- Dalian,China
- 15-20 days
- 2 billion/year
1. We offer high pressure hydraulic o-rings with wire diameters ranging from 1mm to 10mm, able to be customized according to shallow or deep groove types.
2. In our high pressure hydraulic o-ring kit, we have applied a formula specific for high pressure situations, which has resulted in excellent pressure resistance and the ability to prevent leaks.
3. Our products allow for mass customization as well as customization of non-standard sizes, thereby being proper for various kinds of heavy and light-duty hydraulic machinery and equipment.
In construction machinery, injection molding machines or hydraulic power systems, a failure of the seal can cause a chain of problems. First, equipment efficiency will be compromised. Continuing on without fixing the problem, at some point, equipment will break down and be out of service. In the worst case scenarios, safety incidents can occur.
Our high pressure o ring seals make use of high-hardness rubber (Shore A 70~90) as a tough extrusion-resistant supporting structure that is able to effectively resist the impact oil. Being very low compression set ≤25% is a deformation control stabilizer. It guarantees complete rebound of the seal even after the high-pressure release without any gap opening due to relaxation. Besides, you have an option to either opt for single or double PTFE retaining rings which serve as a physical stop to sealing the extrusion channel directly.
What Are High-Quality High Pressure Hydraulic O-Rings?
Their production involves high-strength, oil-resistant rubber raw materials and a precision vulcanization process. They are specially tailored for high-pressure hydraulic systems with features such as strong pressure resistance, oil and wear resistance, and low compression set. The hydraulic sealing elements made from them play a pivotal role in ensuring leak-free hydraulic equipment operation. The standards and specifications that they comply with, include the following:
Item | Details/Specifications |
| Standards | GB/T3452.1, ISO3601, AS568, JIS B2401 |
| Common Materials | NBR, FKM, fabric-reinforced/back-up ring combined O-rings |
| Dimension System | Full range of metric and inch sizes, covering international mainstream cylinder and valve interfaces; customizable |
Cross-section Diameter Range | Full range of conventional cross-section diameters customizable (1.0mm-10mm, etc.), suitable for shallow and deep groove designs |
| Inner Diameter Range | Wide range of inner diameters available, suitable for applications from miniature hydraulic valves to large construction machinery cylinders |
Temperature Range | -30℃~120℃ |
| Compression Set | ≤25% for NBR at 100°C×24h; for FKM at 150°C×24h |
| Hardness Options | Shore A70/A80/A90 available; customizable. (Higher hardness provides better extrusion resistance and pressure capacity |
| Pressure Range | Static ~14MPa, Dynamic ~7MPa Static ~21MPa, Dynamic ~10MPa Static ~35MPa, Dynamic ~14MPa |
| Combination Solutions | Can be used with PTFE back-up rings, double-sided or single-sided configuration, to increase pressure limits and prevent O-ring extrusion under high pressure |
Compatible Media | NBR: compatible with mineral oil-based hydraulic fluids, lubricating oils, gear oils; FKM: compatible with high-temperature hydraulic fluids, phosphate ester hydraulic fluids, and some chemical media |
What Are the Advantages of High Pressure Hydraulic O-Rings?
1. Superior Pressure Resistance and Structural Stability:
The high-grade hydraulic O ring set we provide is made from a hard compound of a very high degree of stiffness (Shore A70-90) and a compact, strong frame, which enables it to endure the impacts of high pressure oil. It is hardly cracked or changed in shape under very high pressure and is quite effective in resisting pressure shocks for instance ensuring a very stable and leak-proof seal.
2. Stable Oil Resistance Across the Entire Temperature Range, Compatible with Various Media.
It is compatible with various hydraulic media such as hydraulic oil, engine oil, and gear oil at a temperature range from -30℃ to 120℃. Its sealing performance stays consistent over time when exposed to cycles of hot and cold, as it is not prone to hardening or swelling, thus being dependable for the sealing function in all types of weather.
3. Extremely Low Compression Set, Long-Lasting Seal.
We produce our high pressure O rings by a precision vulcanization method, having a permanent deformation rate of ≤25% (better than ≤30% for common products).
Long-term repeated pressurization of the product demonstrates its outstanding regenerative ability which results in negligible deformation; therefore such products can resist collapse and loosening and at the same time maintain sealing strength for a long period of time.
4. Customized Solutions for All Scenarios.
We provide different types of materials such as NBR and FKM; support all metric/imperial sizes and non-standard customization, and can be accompanied by PTFE retaining rings to further increase the pressure resistance limit, suitable for all kinds of hydraulic equipment, from light-duty to heavy-duty.
What Industries Can High Pressure O Rings Be Used In?
Our high pressure hydraulic O ring kit is several hydraulics cylinders, pumps, and solenoid valves, also all kinds of construction machinery, injection molding machines, die-casting machines, forklifts and cranes, mining machinery, high-pressure pneumatic and hydraulic pipelines, and other high-pressure hydraulic power equipment respectively, among others, in general.
About Yida Rubber:
We Possess Large-Scale Intelligent Manufacturing Capabilities and Core Qualifications.
Established in 2006, our main group has accumulated more than 30 years of expertise in the rubber field. Presently, we have offices located in Vietnam and Japan. Our main factory complex is spread over 37,000 square meters and has a workforce of about 450 people. Besides, we have our overseas factories in Vietnam and Japan, and production capability is more than 2 billion units. Besides that, the company has secured ISO 9001, ISO 14001, IATF 16949, and CNAS national laboratory certification.
We Have Participated in Exhibitions Showcasing Our Precision Products.
Since then, we have not only participated in many domestic and international exhibitions but also have been invited to January 2025 as participants of 27th Dalian International Industrial Expo. At this exhibition were demonstrated local cheaper industries such as automotive parts, high-end equipment, petrochemicals, and shipbuilding. Therefore, based on our 30 years of continuous technological development and capacity to compose more than 1,000 material formulations, we were able to meet the need for highly reliable seals in many different sectors.
We Have Earned the Trust of Global Customers and Achieved Market Coverage.
Throughout 30 plus years of continuous expansion, we have built deeply rooted partnerships with international brands including SMC, Panasonic and Minebea. Besides our products being exported to Europe and Southeast Asia, we have also been honored with awards like the “Omron Global Strategic Partner Certificate.” This award not only put the company on firm footing for development but also enhanced our capability to venture into the international markets.
FAQ:
1. How to prevent high pressure O ring seals from cracking during use?
Prioritize using a Shore A90 high-hardness, high-pressure formula combined with a PTFE retainer ring; secondly, check the sealing groove design for rationality; finally, ensure no twisting or scratches during installation.
2. What is the difference between high pressure O ring seals and ordinary O-rings?
Ordinary O-rings are prone to extrusion, deformation, and tearing under high-pressure environments. High-pressure hydraulic O-rings, on the other hand, possess low compression set, extrusion resistance, oil resistance, and wear resistance, enabling stable operation in high-pressure, high-frequency hydraulic systems.
3. What precautions should be taken when installing high pressure O ring seals?
When installing the most important things that you have to do are use grease that is compatible with the media, absolutely don't twist or knot, and meticulously examine the metal grooves. The inside of the grooves, chamfers, and all surfaces of metal in contact must be deburred and perfectly smooth. Also, the grooves should be cleaned thoroughly, getting rid of any metal shavings, dust, fibers, or other impurities.
4. How to determine if an O-ring needs replacement?
• Visible oil leakage: Continuous oil droplets or obvious traces of oil seepage appear at the connection or edge of the sealing groove.
• Physical damage and deformation: Serrated notches appear on the high-pressure side of the O-ring, or it is squeezed into the gap; the cross-section loses its roundness; the rubber hardens, loses its luster, and fine cracks appear on the surface.
·Degraded system performance: The hydraulic cylinder exhibits creeping, slow pressure build-up, or poor pressure holding performance.
