Aluminium Oxide  Manufacturers, Traders, Suppliers

Al2O3 99.7%

• High temperature application 1700°C,
• Electrical insulator,
• Thin-wall constructions,
• chem. resistant,
• good thermal conductivity,
• gastight

• Wear component,
• Furnace heating coil support,
• Wire guides
• etc

Due to the outstanding homogeneity of the manufactured products, NABALOX®
raw materials are characterised by their highly consistent properties.
This provides significant advantages in their mechanical, thermal,
electrical and chemical properties along with a good price to
performance ratio. These characteristics make the NABALOX® aluminas the ideal raw material for the international ceramics industry.

one of the raw materials of our products.

Alumina ceramic, also known as aluminum oxide ceramic, is a high-performance material widely used in industrial and technical applications due to its excellent mechanical, thermal, and electrical properties. It is composed primarily of aluminum oxide (Al₂O₃) and is manufactured through processes such as dry pressing, isostatic pressing, or injection molding, followed by sintering at high temperatures.

Key Properties of Alumina Ceramic:

• High Hardness & Wear Resistance – Alumina ceramic exhibits exceptional hardness, making it suitable for abrasive environments.
• Excellent Thermal Stability– It maintains structural integrity at temperatures up to 1600°C, with low thermal expansion.
• Superior Electrical Insulation – With high dielectric strength, it is widely used in electronic and electrical applications.
• Chemical Inertness – Resistant to acids, alkalis, and corrosive substances, ensuring long-term durability.
• Good Mechanical Strength – High compressive strength and rigidity enable its use in demanding mechanical applications.

• Electronics & Electrical: Insulators, substrates, and spark plugs.
• Industrial Components:Wear-resistant linings, cutting tools, and seals.
• Medical Devices: Biocompatible implants and surgical tools.
• High-Temperature Environments: Furnace components and thermocouple tubes.
• Chemical Processing: Corrosion-resistant labware and pump components.

Material:Alumina, zirconium oxide etc
Certificate:ISO9001 & 16949
Inspecting: Carl Zeiss/Hexagon CMM
Machining center: 3-4-5 Axis Machining center, Mazak,Hass,and brothers brand

1、Materials and Processing Techniques
Ceramic materials such as alumina and zirconia have corrosion resistance and oxidation resistance properties, with a dimensional accuracy of up to 1 micron and a mirror level smoothness
Ceramic tiles should pay attention to their water absorption rate (fine water tiles 3% -6%, ceramic tiles>10%), dimensional error (national standard ≤± 0.3%), and flatness (deviation ≤ 0.5%)
Core processing technology
Laser cutting: used for high-precision molding, combined with gold carving grinding to achieve micrometer level tolerances (such as cylindricity of 0.5 micrometers)
CNC machining:
The recommended speed for a flat bottomed knife (diameter 6mm) is 14000 revolutions per minute, with a feed rate of 0.1-0.5 millimeters per minute
Rough machining allowance of 0.15-0.25mm, precision machining of 0.02-0.04mm, surface roughness can be controlled below 0.2 microns
2、Process optimization and equipment requirements
Tools and Parameters
The ball head knife needs a thin blade design to reduce friction and is suitable for areas with small curvature.
The five axis linkage technology can control the angle deviation within 0.1 ° and process micro holes (depth to diameter ratio 10:1).
.
Equipment performance
Positioning accuracy ± 0.005mm, repeated positioning accuracy ± 0.003mm/300mm.
Magnetic positioning reduces clamping errors and pneumatic fixtures shorten clamping time by 70%.
3、 Quality Inspection Standards
Dimensional inspection: CMM ensures a tolerance of ± 0.005mm.
Surface quality: Ultrasonic assisted technology controls roughness ≤ 0.2 μ m.

1. Medical and health field
Orthopedic implants: Ceramic artificial joints (such as hip joint ball heads) need to achieve a surface roughness of Ra0.01 μ m. The precision engraving machine uses elastic polishing technology to reduce wear rate by 60% and extend service life to 30 years.
Dental restoration: Zirconia crowns achieve a precision of 0.02mm through five axis linkage processing, with a 70% improvement in edge fit and an aesthetic score of 9.1/10.
Neurointerventional instruments: Ceramic catheter with an outer diameter of 0.5mm, laser cutting technology ensures wall thickness uniformity of ± 2 μ m, and the success rate of blood vessel passage is increased to 92%.
2. Electronics and Semiconductors
Ceramic substrate: Aluminum nitride substrate is used for LED heat dissipation, and the wiring groove error processed by engraving and milling machine is ≤± 0.01mm to ensure thermal conductivity.
Electronic packaging: HTCC/LTCC ceramic substrates are precisely trimmed to meet the requirements of multi-layer circuit connections.
3. Aerospace and Military Industry
High temperature resistant components: The rocket engine nozzle is made of special ceramics (such as silicon carbide), which can withstand a high temperature of 3000 ℃.
Bulletproof material: Zirconia ceramic is used for armor in armed helicopters, with a hardness second only to diamond.
4. New Energy and Industry
Solar photovoltaics: Ceramic electrodes and packaging substrates improve battery efficiency, while engraving and milling machines ensure structural accuracy.
Wear resistant components: Alumina ceramic rods are used for lining chemical reactors, with better corrosion resistance than metals.
5. Other innovative applications
Bioactive coating: Hydroxyapatite ceramic coating accelerates bone integration by 40% and is used for surface treatment of implants.
Porous ceramic beads: As a catalyst carrier, with an opening rate of over 50%, they enhance the efficiency of chemical reactions.

Aluminum oxide, also known as alumina, is one of the most common precision engineering ceramics. It has extremely high hardness, high temperature resistance, and insulation, so it is widely used in various types of highly precise equipment.

• Alumina Content: 95%-99.8%
• Density: 3.7-3.92(g/cm³)
• Vickers Hardness(HV50): 15.7(Gpa)
• MaximumTemperature: 1650(℃)
• Thermal Conductivity @ 20°C: 27.5(W/mK)
• Dielectric Strength: ＞10(KV/mm)
• Volume Resistivity @ 20°C : ＞1014(Ω.cm)