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Custom Technical Ceramics Machining

Technical ceramic materials generally refer to aluminium oxide (Al2O3), aluminium titanate (Al2TiO5), hybrid/dispersion ceramics, piezoelectric ceramics, silicate ceramics, zirconium oxide (ZrO2), aluminium nitride (AlN), silicon carbide (SiSiC / SSiC), silicon nitride (Si3N4), SiAlON, metal ceramic compounds (MMC) with high hardness and brittle properties.


Material Selection Guide

Custom Technical Ceramic Machining

Aluminium oxide (Al2O3)

Aluminium oxide has a high hardness, high melting point, corrosion resistance, high resistivity, low cost, moderate surface activity, good adhesion, thermal shock resistance and a shielding effect.

Zirconium oxide (ZrO2)

Zirconia has high toughness, high flexural strength, excellent thermal insulation, acid and alkali resistance, and its coefficient of expansion is even close to that of metal.

Aluminium nitride (AlN)

Aluminium nitride (AlN) has high strength, high volume resistivity, high insulation withstand, coefficient of thermal expansion and good matching with silicon.

Silicon carbide (SiSiC / SSiC)

Silicon carbide is almost like a diamond. It is not only the lightest but also the hardest ceramic material, with excellent thermal conductivity, low thermal expansion and very resistant to acids and alkalis.

Silicon nitride (Si3N4)

Silicon nitride ceramics are characterised by high temperature resistance, corrosion resistance, low coefficient of thermal expansion, high thermal conductivity, resistance to thermal shock, chemical stability and high hardness.


Sapphire is extremely hard, very stable at high temperatures, very resistant to chemicals and is a transparent crystal with a transmission rate of over 80% from visible to far infrared light.

Boron Nitride Ceramic

There is a difference between cubic boron nitride and hexagonal boron nitride. Cubic boron nitride is the hardest ceramic material, second only to diamond in hardness.

Boron Carbide Ceramics

Boron carbide ceramic properties and application characteristics boron carbide (B4C) is a high hardness black crystalline powder, its melting point is 2450 degrees, the coefficient of thermal expansion is second only to diamond.

Technical Ceramics

Aluminum Oxide (Al2O3)
Aluminum Nitride (AlN)

Aluminum Titanate (Al2TiO5)

Silicate Ceramics
Silicon Carbide (SiSiC / SSiC)

Mixed / Dispersion Ceramics


Zirconium Oxide (ZrO2)
Silicon Nitride (Si3N4)

Examples of ceramic parts manufacturing

Case study

Positioning pins machined from zirconium oxide ceramics

Case study

Silicon nitride ceramics parts

Case study

Custom alumina ceramic parts

Case study

Custom Silicon carbide ceramic parts

SPP Industry Ltd.

In the 1990s, SPP Industry Ltd was one of the first manufacturers to establish CNC machining in China. The company has now established five major machine parks in China, with significant achievements in the areas of 5-axis machining, precision grinding & honing, gear machining, large parts machining, custom tungsten carbide and new material development respectively.

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