Ceramic grind core is the key functional part of the coffee grinder. How to find a suitable grinding burr? This ceramic flat burr is suitable for commercial or household electric coffee grinders. It is made of 99% alumina ceramics. The material has no coating, no heavy metals, no rust, and strong corrosion resistance.The surface area is large, the outer diameter reaches 64mm, and the contact surface have many sharp blades. In the grinding machine, the two products are in contact with each other and used together. By adjusting the distance between the two parts, the size of the grinding coffee beans powder can be adjusted.When the coffee beans are ground accurately, it is not easy to generate heat, and the coffee beans ground with coffee oil can be extracted evenly, and the original flavor of coffee can be preserved. The environmentally friendly ceramic burr has a high heat capacity, so it can keep its original sharp edge for a long time, and it can also remain relatively quiet during grinding work.The comparative properties of related materials are shown below, and can be produced according to the customer’s material requirements.
Mechanical Property |
Ceramic Material |
99.5%
Al2O3 |
99%
Al2O3 |
95%
Al2O3 |
MgO.SiO2
(Steatite) |
Density (g/cm3) |
≥3.90 |
≥3.85 |
≥3.65 |
≥2.70 |
Water absorption (%) |
0 |
0 |
0 |
0 |
Hardness (HV) |
1700 |
1700 |
1500 |
800 |
Flexural strength (Mpa) |
≥379 |
≥338 |
≥320 |
≥190 |
Compressive strength ( Mpa) |
≥2240 |
≥2240 |
≥2000 |
≥551 |
Fracture toughness (Mpam1/2) |
4-5 |
4-5 |
3-4 |
– |
Standard products are well stocked to meet customers’ short-term needs, and we also serve customers’ prototype custom-designed products. In order to ensure the quality, a comprehensive quality inspection will be carried out before shipment.