| Customization: | Available |
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| Material: | NBR |
| Application: | Excavator |
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| Applicable standards | Class | ||||||||||||||
| JIS B 2401 | NBR-70-1 | NBR-90 | NBR-70-2 | HNBR-70 | HNBR-90 | SBR-703) | VMQ-70 | FKM-70 | FKM-90 | ACM-70 | EPDM-70 | - | EPDM-90 | ||
| JASO F 404 | Class 1-A | - | Class 2 | - | - | Class 3 | Class 4-C | Class 4-D | - | Class 4-E | - | Class 5 | - | ||
| Rubber materials, Applications Test items |
Nitrile rubber (NBR) |
Nitrile rubber (NBR) |
Nitrile rubber (NBR) |
Hydrogenated nitrile rubber (HNBR) |
Hydrogenated nitrile rubber (HNBR) |
Styrene-buta- diene rubber (SBR) |
Silicone rubber (VMQ) |
Fluoro rubber (FKM) |
Fluoro rubber (FKM) |
Acrylic rubber (ACM) |
Ethylene- propylene rubber (EPDM) |
Ethylene- propylene rubber (EPDM) |
Ethylene- propylene rubber (EPDM) |
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| Mineral oil resistance | Gasoline resistance |
Mineral oil and high-temperature application resistance | Animal oil and veg- etable oil resistance | High-temperature application resistance | Animal oil, vegetable oil, and brake fluid resistance | Coolant resistance | Animal oil, vegetable oil, and brake fluid resistance | ||||||||
| Normal proper- ties | Hardness by durometer type A1) | A70 ± 5 | A90 ± 5 | A70 ± 5 | A70 ± 5 | A90 ± 5 | A70 ± 5 | A70 ± 5 | A70 ± 5 | A90 ± 5 | A70 ± 5 | A70 ± 5 | A70 ± 5 | A90 ± 5 | |
| Tensile strength (MPa), min. | 10.0 | 14.0 | 10.0 | 16.0 | 16.0 | 9.8 | 3.5 | 10.0 | 10.0 | 6.0 | 10.0 | 9.8 | 10.0 | ||
| Elongation (%), min. | 250 | 100 | 200 | 180 | 100 | 150 | 60 | 170 | 80 | 100 | 150 | 150 | 80 | ||
| Tensile stress (MPa), min. (at 100 % elongation) | 2.5 | - | 2.5 | 2.5 | - | 2.7 | - | 2.0 | - | - | - | 2.7 | - | ||
| Aging tests | Temperature and duration | 120 ˚C, 72h | 100 ˚C, 72h | 150 ˚C, 72h | 100 ˚C, 70h | 230 ˚C, 72h | 230 ˚C, 72h | 150 ˚C, 72h | 100 ˚C, 72h | 120 ˚C, 70h | 100 ˚C, 72h | ||||
| Change in hardness, max. | + 10 | + 10 | + 10 | + 15 | + 15 | + 10 | + 10 | + 5 | + 5 | + 10 | + 10 | + 10 | + 10 | ||
| Change in tensile strength (%), max. | - 15 | - 25 | - 15 | - 30 | - 30 | - 15 | - 10 | - 10 | - 10 | - 30 | - 15 | - 20 | - 15 | ||
| Change in elongation (%), max. | - 45 | - 55 | - 40 | - 40 | - 40 | - 45 | - 25 | - 25 | - 25 | - 40 | - 45 | - 40 | - 45 | ||
| Compression set test | Temperature and duration | 120 ˚C, 72h | 100 ˚C, 72h | 150 ˚C, 72h | 100 ˚C, 70h | 175 ˚C, 72h | 200 ˚C, 72h | 200 ˚C, 72h | 150 ˚C, 72h | 100 ˚C, 72h | 120 ˚C, 70h | 100 ˚C, 72h | |||
| Compression set (%), max. | 40 | 40 | 25 | 40 | 40 | 25 | 30 | 40 | 40 | 60 | 25 | 40 | 30 | ||
| Immersion test | Temperature, duration, and testing oil | 120 ˚C, 72h 2) IRM901 |
23 ˚C, 72h fuel oil No.12) | 150 ˚C, 72h 2) IRM901 |
100 ˚C, 70h brake fluid2) | 175 ˚C, 72h IRM9012) |
175 ˚C, 72h IRM9012) | 150 ˚C, 72h 2) IRM901 |
100 ˚C, 72h brake fluid2) | 100 ˚C, 70h coolant | 100 ˚C, 72h brake fluid2) | ||||
| Change in hardness | - 5 ~ + 8 | - 5 ~ + 8 | - 8 ~ 0 | -5 ~ + 10 | -5 ~ + 10 | - 15 ~ 0 | - 10 ~ + 5 | - 10 ~ + 5 | - 10 ~ + 5 | - 7 ~ + 10 | - 15 ~ 0 | - 5 ~ + 5 | - 15 ~ 0 | ||
| Change in tensile strength (%), max. | - 15 | - 20 | - 15 | - 20 | - 20 | - 40 | - 20 | - 20 | - 20 | - 30 | - 40 | - 40 | - 40 | ||
| Change in elongation (%), max. | - 40 | - 40 | - 25 | - 40 | - 40 | - 40 | - 20 | - 20 | - 20 | - 40 | - 40 | - 40 | - 40 | ||
| Change in volume (%) | - 8 ~ + 5 | - 8 ~ + 5 | - 3 ~ + 5 | -10 ~ + 5 | -10 ~ + 5 | 0 ~ + 12 | 0 ~ + 10 | - 5 ~ + 5 | - 5 ~ + 5 | - 5 ~ + 5 | 0 ~ + 12 | - 5 ~ + 5 | 0 ~ + 12 | ||
| Temperature, duration, and testing oil | 120 ˚C, 72h 2) IRM903 |
23 ˚C, 72h fuel oil No.22) | 150 ˚C, 72h IRM9032) |
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175 ˚C, 72h 2) IRM903 |
175 ˚C, 72h 2) IRM903 |
150 ˚C, 72h 2) IRM903 |
- |
- |
- |
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| Change in hardness | - 15 ~ 0 | - 10 ~ + 5 | - 20 ~ 0 | - 15 ~ + 5 | - 15 ~ + 5 | -10 ~ + 5 | - 10 ~ + 5 | - 20 ~ 0 | |||||||
| Change in tensile strength (%), max. | - 25 | - 35 | - 45 | - 30 | - 35 | - 20 | - 20 | - 40 | |||||||
| Change in elongation (%), max. | - 35 | - 35 | - 45 | - 40 | - 40 | - 20 | - 20 | - 40 | |||||||
| Change in volume (%) | 0 ~ + 20 | 0 ~ + 20 | 0 ~ + 30 | 0 ~ + 30 | 0 ~ + 25 | - 5 ~ + 5 | - 5 ~ + 5 | 0 ~ + 30 | |||||||
| Low-temperature brittleness test | Brittleness limit temperature (˚C), max. | - 13 | - | - 10 | - | - | - 40 | - 50 | - 15 | - | - 1 | - | - 40 | - | |
| Low-temperature elastic recovery test | TR10 value (˚C), max. | - 15 | - 15 | - 10 | - 15 | - 15 | - | - 30 | - 10 | - 10 | - 10 | - 30 | - | - 25 | |
| Corrosion test | Temperature and duration | 70 ± 1 ˚C, 24h | |||||||||||||
| Appearance | The rubber shall not corrode the metal with which it is in contact nor shall the rubber become sticky. However, changes in metal surface color shall not be judged as corrosion. |
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| Product name | Rubber o ring box |
| Material | NBR,FKM,FFKM,EPDM,Silicon,HNBR······ |
| Colour | Black, Brown, Green, etc. Customized |
| MOQ | 20 |
| Working Temperature | -50ºC to +250ºC |
| Durometer | 70 ShA |
| Size | Standard and Non-standard |
| Sample | Free Available |
| Tolerance Standard | ISO2768-M or ISO3302-1:2014 CLASS M2 |
| Lead Time | 10 days for prototype tooling & samples, 15 days for production mold, 15-30 days for MOQ |
| Packing Details | Paper bags, plastic bags, cartons, can be customized |
| Payment Terms | T/T, Paypal, Western Union······ |
Since its establishment in 2008, Hebei Michu Technology Co., Ltd. has focused on processing and production and accumulated many years of technical experience. In 2014, we successfully developed from a factory into an oil seal supplier integrating production and trade.
Main products: various types of rubber products and seals, such as O-ring, TC oil seal, gasket, PTFE oil seal, coupling, UN, hydraulic seal, mechanical seal, etc
Company strength:
Production area of 5000+ square meters
Warehouse area 2000+ square meters
Number of employees 50+
Production equipment 50+
Testing equipment 10+
Export countries and regions 150+
Our Advantages:
1. Accurate delivery time: The delivery time provided for you is real and reliable, and timely delivery is guaranteed
2. Stable quality assurance: Strict quality testing is carried out before each batch of goods leaves the factory to ensure that the products meet the requirements of use
3. Meet various customization needs: In addition to color, size, material can be customized on the product packaging of your exclusive logo, company name, etc
4. More competitive price: Own factory production and sales, to provide you with a better price, to help you in your market more competitive advantage
5. Improve after-sales service: 7*24 hours manual online, product problems can contact us at any time, and for you to solve the problem
Main rubber material: NBR, FKM, silicone rubber, EPDM, HNBR, FFKM, etc
Production process: Select mold → make skeleton → glue rubber → high temperature molding → remove excess parts → combine packaging → pack and box → start transportation
We have won the praise of our customers for our excellent service ability, and we will continue to work hard in the future.
Q:Are your company a factory or trade company?
A: We are an integrated enterprise of industry and trade, with both processing and trading departments.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we are glad to offer the sample for free charge but don't pay the cost of freight.
Q: What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery.
Q:What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
Q:How about your delivery time?
A: Usually it will take 7 to 25 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of the order.
Q: Can you produce according to the samples?
A: Yes, we can produce by your samples or drawings.
Q:If any Quality problem of the goods have what can I do?
A:Feel free to contact us. we will help you solve this prombles.
Q: Why we choose you ?(Our advantages)
A: 1)We are professional manufacturer more than 10 years.Compound from world class suppliers, NBR, EPDM,FKM , FVMQ,PU,Aflas,HNBR, Silicone,etc material, hardness from 30 to 95 Shore.We have more than 10000 molds for orings,oil seal and mechanical seal .
2)We promise we will quick delivery as soon as the contract is effetive.
3)Good quality & reasonable price.
4)Big stock goods .
Our price is best in China, and it is competitive all over the world.If you have another question, please feel free to contact us,We will reply you for your inquiry in 24 hours.
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