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Product Description
 | Alumina ceramics friction ring advantages： It has excellent electrical insulation and chemical stability, good heat resistance, excellent dielectric, high thermal conductivity and excellent heat dissipation. |
Features of Al2O3 ceramic burr • Non-corrosive material won't absorb flavors or odors • Ceramic cores do not heat will not damage the original flavor and baking degree of coffee beans. • Cost-effectiv e than metal ones and easy protyping to mass production. |  |
 | Main performance of the Alumina Ceramic: Good thermal conductivity, high insulation strength, high resistivity, low dielectric loss, dielectric constant is generally between 8-10; |
Alumina ceramic Introduction: In terms of wear resistance, the hardness can reach 9 degrees on the Mohs hardness; Small coefficient of thermal expansion, good thermal conductivity and strong heat resistance. |  |
Alumina Purity | 92% | 95% | 96% | 99% | 99.6% |
Color | White | White | White | Ivory White | White |
Volume density(g/cm3) | 3.45 | 3.5 | 3.7 | 3.75 | 3.9 |
Water Absorption | 0 | 0 | 0 | 0 | 0 |
Flexural Strength | 300Mpa | 300Mpa | 320Mpa | 330Mpa | 330Mpa |
Vickers hardness | 1300 | 1400 | 1400 | 1800 | 1800 |
Dielectric Constant (at 1MHZ 25℃) | 10 | 10 | 10 | 10 | 10 |
Modulus of elasticity | 350Gpa | 350Gpa | 350Gpa | 370Gpa | 370Gpa |
thermal conductivity (30℃) | 18W/M.K | 24W/M.K | 24W/M.K | 25W/M.K | 28W/M.K |
Volume resistivity | 10^14Ω•cm | 10^14Ω•cm | 10^14Ω•cm | 10^14Ω•cm | 10^15Ω•cm |
Dielectric strength | 20KV/mm | 20KV/mm | 20KV/mm | 20KV/mm | 30KV/mm |
Company Profile
Packaging & Shipping
Packing Details | We will packing by professional export packing,safety against breakage, finally into the wooden cases/ carton/pallet or customized package. We have ERP authentication. |
Delivery Details | We can deliver by SEA,air,rail transportation,the China-Europe Railway Express etc. TNT, DHL,UPS, FEDEX, EMS，S.F EXPRESS etc. |
| 1. Sample service | 2. Optimal price | 3. Customized logo |
| 4. Fast feedback | 5. Customized size | 6. Safety package |
| 7. ISO9001 | 8. Aftersale service | 9. Low procurement risk |
