Jinghui Industry Limited
| Payment Terms | T/T, Western Union, MoneyGram, Paypal, , L/C |
| Supply Ability | 20000 Piece/Pieces per Month |
| Delivery Time | 4~5 weeks |
| Packaging Details | Vacuum packing with desiccant |
| Product name | Alumina Ceramic Bush |
| Material | Alumina Ceramic |
| Color | Pure white |
| Shape | Ceramic cylinder, ceramic tube |
| Size | Size Customized |
| Type | Ceramic Parts |
| Certificate | ISO9001:2008/SGS/ROHS |
| Application | Industrial Ceramic |
| Brand Name | Jinghui ceramics |
| Model Number | JH.ACT.003 |
| Certification | RoHS, REACH, ISO |
| Place of Origin | Hunan, China |
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Product Specification
| Payment Terms | T/T, Western Union, MoneyGram, Paypal, , L/C | Supply Ability | 20000 Piece/Pieces per Month |
| Delivery Time | 4~5 weeks | Packaging Details | Vacuum packing with desiccant |
| Product name | Alumina Ceramic Bush | Material | Alumina Ceramic |
| Color | Pure white | Shape | Ceramic cylinder, ceramic tube |
| Size | Size Customized | Type | Ceramic Parts |
| Certificate | ISO9001:2008/SGS/ROHS | Application | Industrial Ceramic |
| Brand Name | Jinghui ceramics | Model Number | JH.ACT.003 |
| Certification | RoHS, REACH, ISO | Place of Origin | Hunan, China |
| High Light | aluminum oxide tube ，ceramic insulator tube | ||
Main characteristics of alumina ceramic bush
1. Outstanding wear resistance, over 276 times in comparison with stainless steel
2. Great mechanical properties, hardness, compressive and flexural strength are much higher stainless steel
3. Exceptional corrosion resistance, it can withstand various strong acid and alkali, like HF, H2SO4
4. Extraordinary electrical insulation, it always us in many high voltage, high-current application
Specification of the ceramic bush
1. Material options: different purity alumina (from 95% to 99.8%), zirconia, Silicon carbide, steatite
2. Forming methods: Extrusion, Dry pressed, Hot pressed, Ceramic Injection molding, ISO pressed
3. Dimension capability: Min. the inner diameter can be 1mm, Max. the outer diameter can be 800mm
4. Tolerance: outer diameter can be 0.005mm, the inner diameter can be 0.01mm, the overall length can be 0.01mm
5. Surface treatment: External and internal surface to be polished, glazed or metallized
6. Secondary processing: CNC machining, lapping, grinding, precision cutting and so on
Aluminum Oxide (Alumina, Al2O3) is the most extensively used advanced ceramic material due to their outstanding property characteristics and cost-effective advantage. As with the purity increases, both wear resistance and corrosion resistance also increases, so alumina are grouped together based on purity levels, including 75% alumina, 85% alumina, 90% alumina, 95% alumina, 99% alumina, 99.5% alumina, 99.8% alumina, 99.9% alumina.
Alumina ceramic tubes generally used as a kind of standard protection part, so our facility has many selections of stocks. Our vast, readily-available inventory allows us to supply our customer’s ceramic tube needs immediately, even for hard-to-find or specialty products. Aluminas are used in a variety of general-purpose applications, and their grade is chosen based on the application environment. Additionally, different purity alumina can be formulated in our factory if needed for more demand applications
| General | Property | Units | 99.5% alumina | 99% alumina | 95% alumina |
| Mechanical | Density | g/cm3 | ≥3.85 | ≥3.80 | ≥3.60 |
| Water absorption | % | 0 | 0 | 0 | |
| Hardness | HV | 1700 | 1700 | 1500 | |
| Flexural strength | Mpa | ≥379 | ≥338 | ≥320 | |
| Compressive strength | Mpa | ≥2240 | ≥2240 | ≥2000 | |
| Fracture toughness | Mpa m 1/2 | 4-5 | 4-5 | 3-4 | |
| Thermal | Max. service temperature (Non-loading) | ℃ | 1650 | 1600 | 1450 |
| CTE (20-800℃) | 1×10 -6 /℃ | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | |
| Thermal shock | T(℃) | ≥250 | ≥200 | ≥220 | |
| Thermal conductivity (25℃ ) | W/m.k | 30 | 29 | 24 | |
| Specific heat | 1 x 10 3 J/(kg·K) | 0.78 | 0.78 | 0.78 | |
| Electrical | Volume resistivity (25℃ ) | ohm.cm | ＞1 x 10 14 | ＞1 x 10 14 | ＞1 x 10 14 |
| Insulation strength | KV/mm | 19 | 18 | 18 | |
| Dielectric constant (1Mhz) | (E) | 9.7 | 9.5 | 9.5 |
We also produce lots of different types of ceramic tubes, including threaded tube, half tube, one end tubes and so on.
1. Vacuum packing with desiccant as an inner package;
2. Then, exported carton as an outer package.
3. Finally, it will be packed with a wooden case if needed.
4. We regularly use DHL, UPS, FedEx, and TNT to ship small parcels.
5. For large volume order, we could ship it by sea as per customers' needs.
Q1: Is it available to produce customized products?
A: We always support custom-made metallic coated ceramic insulators as per different dimensions, designs, metallization, and platings.
Q2. When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price, please call us or tell us in your email so that we will proceed with your inquiry as a priority.
Q3. How long can I expect to get the sample?
A: After you pay the sample charge and send us confirmed files, the samples will be ready for delivery in 4 weeks. The samples will be sent to you via express and arrive in 3-5 workdays. You can use your own express account or prepay us if you do not have an account.
Q4. How long does the whole procedure being worked out?
A: After you place an order, the manufacturing time is about 25 working days.
Q5. How to ensure quality?
A: The dimension out of any batch will be carried out sampling inspection per International AQL standard. A 100% cosmetic inspection will be done.
Q6. Are you a factory or trading company?
A: We are a professional manufacturer. We are warmly welcome clients from worldwide to visit our factory and cooperate with us.
Company Details
Business Type:
Manufacturer
Year Established:
2005
Total Annual:
6000000-7000000
Employee Number:
180~200
Ecer Certification：
Active Member
Jinghui Industry Ltd is a trusted and professional manufacturer of technical ceramic components, we dedicated to developing, manufacturing, sales, and service of a variety of industrial ceramic parts over 15 years since its establishment in 2005. The facility focus on producing metalized ceramics... Jinghui Industry Ltd is a trusted and professional manufacturer of technical ceramic components, we dedicated to developing, manufacturing, sales, and service of a variety of industrial ceramic parts over 15 years since its establishment in 2005. The facility focus on producing metalized ceramics...
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