Imperial Standard Precision O-ring
- YiDa
- Dalian,China
- 15-20 days
- 2 billion/year
1. Flashless process: Ultra-precise mold design reduces parting line scars to a minimum.
2. AI-supported complete visual inspection: Inspection features are relying on the exact size, color, shape of the precision O-ring, and the inspection protocol to be followed. Automatic CCD inspection spots major faults; the system automatically detects and rejects defective parts with tiny bubbles, impurities, or burrs.
3. CPK control: We not only provide products that meet specifications; properties of SPC and CPK monitoring are involved in rechecking product specifications in order to standardize them.
"Seal Failure and Assembly Line Stoppage" Caused by Dimensional Deviations
Imperial (AS568) and British (BS 1806) have very stringent dimensional tolerances. Buyers of Imperial O-rings, for instance, medical instrument, precision hydraulics, and aerospace sectors, often find it difficult to get a perfect fit. A mere dimensional difference of 0.05mm can cause:
1. Insufficient compression or over-compression within the sealing groove.
2. Binding or the need for forced installation during assembly.
3. Micro-leaks or pressure decay during long-term operation.
Usually, these problems are not detected during the first trials but they gradually arise throughout the equipment's service life. Eventually, they cause a reduction in sealing efficiency or in some cases, lead to local system shutdowns.
Yida’s Solution:
Our solution combines "micron-level mold precision" with "CCD visual inspection":
We control the precision of mold machining to an accuracy of 0.005mm: To make molds, we use Japanese Makino machining centers which allow us to maintain very good consistency for the O ring imperial cross-section measurement. This ensures the O rings meet the AS568 standard and work with the standard groove designs, thus reducing the chances of assembly problems and sealing failure due to dimensional variations.
Technical Specifications:
| Attribute Name | Details |
| Processing Service | Cutting/Molding |
| Brand Name | Yida / EDA |
| Standard | AS568 and BS 1806 |
| Material | NBR (Nitrile Rubber): Oil- and wear-resistant; suitable for general hydraulic/pneumatic systems and industrial equipment. |
| FKM (Fluoroelastomer): High-temperature and corrosion-resistant; suitable for automotive applications, precision heavy industry, and high-temperature operating conditions. | |
| EPDM (Ethylene Propylene Diene Monomer): Water- and aging-resistant; suitable for outdoor use, plumbing, and electrical appliances. | |
| VMQ (Silicone Rubber): Resistant to high and low temperatures; suitable for food-grade applications, electronics, and precision instruments. | |
| Hardness Range | NBR: 70 ± 5 Shore A (Available: 40 - 90 Shore A) |
| FKM: 75 ± 5 Shore A (Available: 60 - 90 Shore A) | |
| EPDM: 70 ± 5 Shore A (Available: 40 - 90 Shore A) | |
| VMQ: 60 ± 5 Shore A (Available: 30 - 80 Shore A) | |
| OEM/ODM Service | Acceptable |
| Color | NBR: Black (Standard) |
| FKM: Brown, Green, Black | |
| EPDM: Black | |
| VMQ: Red, Rust, Translucent, White | |
| Other colors can be customized. | |
| Operating Temperature | NBR: -30°F to +250°F |
| FKM: -15°F to +450°F (Intermittent to 500°F) | |
| EPDM: -65°F to +300°F (Steam up to 400°F) | |
| VMQ : -75°F to +450°F | |
| Shape | Customized |
| Size | 1. Standards: US AS568, UK BS series |
| 2. Unit of measurement: Imperial (inches); precision tolerances as standard | |
| 3. Common cross-section diameters: 1.78mm, 2.62mm, 3.53mm, 5.33mm, etc. | |
| Tolerance Standard | Made to customer specifications / As per customer design |
| Quality | 100% inspection |
| Design Format | 2D & 3D drawings available |
| Compression Set | NBR: ≤ 25% (Tested at 212°F) |
| FKM: ≤ 15% (Tested at 392°F) | |
| EPDM: ≤ 20% (Tested at 257°F) | |
| VMQ: ≤ 20% (Tested at 347°F) | |
| Tensile Strength | Executive Standard: ASTM D412 |
| NBR: ≥ 2,000 psi | |
| FKM: ≥ 1,750 psi | |
| EPDM: ≥ 1,450 psi | |
| VMQ: ≥ 1,000 psi | |
| Elongation at Break | Test Standard: ASTM D412, Unit: % |
| NBR: ≥ 300% | |
| FKM: ≥ 175% | |
| EPDM : ≥ 250% | |
| VMQ: ≥ 250% | |
| Typical Static Pressure Capability | The actual operating pressure depends on the seal configuration, installation clearance, and whether a back-up ring is used. |
| Performance Characteristics | 1. Precision dimensions with tight tolerances ensure a snug fit and excellent leak prevention. |
| 2. Free of burrs and defects; offers good elasticity, low compression set, and a long service life. | |
| 3. Manufactured to original standard dimensions; | |
| Allows for direct replacement of seals in imported equipment meeting the same specifications, without requiring dimensional modifications. | |
| 4. Resistant to high and low temperatures as well as chemical media; suitable for a wide range of complex operating conditions. | |
| Main Applications | A few sectors are European and American machinery and equipment, hydraulic valves, pneumatic components, automotive parts, precision instruments, and construction machinery. |
| Warranty | Provided the product is stored under the specified conditions (temperature <30°C, humidity <70%, protected from light), we offer a free replacement for any unopened product that fails due to material aging—provided the failure is not caused by human error and is confirmed upon inspection—within three years of the delivery date. The warranty does not cover failures resulting from improper installation or use beyond the specified scope. |
| Production Capacity | Monthly production exceeds 300 tons. |
| Lead Time | For standard sizes, the lead time is 15 days after order confirmation. The average production cycle for prototypes or first-article samples is 1–2 weeks; if mold development is involved, the production mold takes 10 days to manufacture; and the average lead time for mass production following sample approval is 2–3 weeks. |
| Packaging | Packed in a PE bag, then placed in a carton |
| Selling Units | Single item / 1 pc |
| Single Package Size | As per the buyer's request |
| Single Gross Weight | As per the buyer's request |
| Shipping Method | By sea, air, or express |
| Port of Loading | Dalian Port or as per the buyer's request |
| Certificates | IATF 16949 Automotive Quality Management System |
| AS9100D Aerospace Quality Management System | |
| ISO 14001 | |
| ISO 9001 | |
| RoHS 2.0 |
Scope of Application:
Machinery machinery and equipment from different places mainly in Europe and the USA, hydraulic valves, pneumatic components, auto parts, precision instruments, construction machinery and other sectors.
Automation
Automotive
Aerospace
Semiconductor
New Energy
Medical
Technical Advantages:
Reverse Analysis: Finding materials that match by refering to a selection of1471 verified recipes, customized for particular media, temperatures, and working conditions.
Raw Material Property Testing: Automated barcode-based error prevention and the use of imported raw materials ensure product consistency and stability. In-house mold machining center.
Over 20 years of experience; Makino machining centers and EDM machines ensure mold precision within 0.005mm.
AI-Powered Visual Quality Inspection: Comprehensive material performance testing; CPK, SPC, and MSA analysis; AI visual inspection; 2D inspection; and 100% manual inspection.
Manufacturing Center:
Rubber compounding
Vulcanization
Mold
Injection molding
Testing Center:
Materials analysis equipment
Automatic inspection equipment
About Yida:
Yida, a family-run enterprise, was first launched in 1993 and the rubber manufacturing company Dalian Yida Precision Rubber Products Co., Ltd. was later established in 2006. The company has a long history of more than 20 years in the manufacturing of the industrial rubber sector. Its main office is in Dalian, where the business has more than 450 employees working for and a workshop of 37,000 square meters. Besides that, Yida has set up factories in Vietnam and Japan. The business having 1,000+ compound formulations validated and a run rate of production capacity at 300 ton per month has the capability for stable, large-scale delivery. Its products are distributed to the United States, Germany, Saudi Arabia, Russia, Mexico, Japan, Thailand, the UAE, France, Vietnam, and other countries.
Certifications:
Yida holds certifications including IATF16949, ISO9001, ISO14001, AS9100D, RoHS 2.0, UL, and NSF/WRAS.
Certificate Numbers:
AS9100D & ISO 9001:2015
Key Partners:
Yida keeps supplying dependable products and services to the customers in the global industries of industrial manufacturing, automation control, new energy, electrical equipment, and automotive parts, by partnering for a long time with lots of internationally well-known enterprises. Our customers industry-wise are very diverse, covering automotive electronics, industrial automation, intelligent manufacturing, new energy, power equipment, and fluid control sectors, and among those companies are Delphi Technologies, Alpine Electronics, Nidec, Siemens, Panasonic, Omron, SMC Corporation, CATL, China Electric Equipment Group, and Rongke Power.
14th Shanghai International Long-Duration Energy Storage Technology Conference.
By participating in this high-level industry conference, Yida was able to showcase its capabilities in supplying rubber sealing components for emerging sectors—such as flow batteries—on a prestigious platform, thereby enhancing the company's industry recognition and brand influence.
