Wear-resistant parts

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About Wear-resistant parts

Such as medical and acid resistance, these are wear-resistant components used in a special occasion. Depending on the application, different ceramic materials are used.

Main Products

Plungers for pumps

  • Artificial dialysis
  • Pumps

Application

This plunger pump is used for agrochemical spraying, washing machines, and artificial dialysis.

Material

Aluminas KP-95 and KP-990, zirconia etc., are used according to applications that require corrosion resistance or wear resistance.

Features

Thanks to the use of ceramics having stable chemical properties, these plungers for pumps are less susceptible to corrosion and can be used for many years to come. They are also free of effluent and available for medical use. Distinguished dimensional accuracy can be achieved by high-accuracy grinding.

*This is one of our group companies, NTK CERATEC CO., LTD's product line.

NTK CERATEC

Fluid control valves

  • Valves

Application

This product is used as a regulator of fluids at chemical plants.

Material

When resistance to chemicals, such as alkalis and acids, and resistance to corrosion are required, alumina UHA-99 is used. When resistance to heat is required, silicon nitride EC-141 is used.

Features

Both alumina and silicon nitride are ground with high precision and each part has high system accuracy.

*This is one of our group companies, NTK CERATEC CO., LTD's product line.

NTK CERATEC

Balls and rollers for bearings

  • Machine Tools

Application

This spherical ball for bearing is used for machine tools, such as spindles that rotate at high speeds and for semiconductor manufacturing equipment that can be damaged by metal dust. It is also used in a special environment, such as in high-temperature chemicals.

Material

EC-141 manufactured from silicon nitride with the special gas-pressure sintering method.

Features

It excels in mechanical strength and rolling fatigue life.

Liner bricks for ball mill

  • Material Grinding

Application

Liner bricks are used as inner linings for grinding machines vulnerable to the mixing of foreign bodies such as ball mills, tube mills, and vibrating mills.

Material

This product is made of Corundit-W (C-W) material having an α-alumina as the main component.

Features

Because of its good wear resistance, the liner brick causes less contamination and helps maintain the purity of the ground materials.

*This is one of our group companies, NTK CERATEC CO., LTD's product line.

NTK CERATEC

Nozzles for paper manufacturing machines

  • Paper Manufacturing Machines

Application

These nozzles are designed for centrifugal separators for foreign substances used in the papermaking process.

Material

Alumina KP-95, which is characterized by distinguished wear resistance, is used.

Features

Nozzles come in various discharge internal diameters, lengths, and external diameters fit for applications.

*This is one of our group companies, NTK CERATEC CO., LTD's product line.

NTK CERATEC

Ceramics for air bearings

  • Printer

Application

These ceramics are used for air bearings for copying machines, etc.

Material

Alumina KP-95 combining outstanding wear resistance, high rigidity, and low thermal expansion is used.

Features

Bearings made of lightweight, high-rigidity ceramics and processed by high-accuracy grinding to the submicron level can rotate at speeds as fast as 50,000 rpm.

*This is one of our group companies, NTK CERATEC CO., LTD's product line.

NTK CERATEC

Plungers for pumps (high-purity alumina)

  • Artificial Heart Lung Apparatus

Application

These plungers for pumps are intended for medical use and artificial dialyzers.

Material

Alumina KP-990 has a strong rigidity, outstanding wear resistance and chemical resistance. In addition to these properties, alumina KP-999T is pore-free and has an affinity to blood. UHA-99 is a low-α material.

Features

The newly developed KP-999T is compliant with ASTMF603, which is the standard specification for high-purity dense aluminum oxide for medical application. High-accuracy grinding realizes excellent dimensional accuracy.

*This is one of our group companies, NTK CERATEC CO., LTD's product line.

NTK CERATEC