Ceramic Materials  Manufacturers, Traders, Suppliers

oxide ceramics:
AluminaAl2O3 99.7%

• High temperature application 1700°C, electrical insulator, thin-wall construction, chem. resistant, good thermal conductivity, gas tight
• Application areas:
• Wear component, furnace heating coil support, wire guides etc.

Substrates Al2O3 96%

• electrical printer carriers, insulators

Zirconia ZrO2 y- or MgO-rod.

• very high surface qualities Ra

Fused silica SiO2

• very poor heat conductor, very low thermal expansion; max. 1000°C applicable
• Use as thermal insulators

Non-oxide ceramics:
Aluminium nitride AlN

• very good heat conductor, very good thermal shock resistance
• Use as heat conductors and boards

Silicon nitride Si3N4

• very wear resistant, high toughness and hardness
• for wear parts

Silicon carbide SiC, SiSiC

• High-temperature application, very good resistance to temperature changes; high thermal conductivity, extremely good oxidation resistance
• Examples of use: Slide bearings, guide rails

boron nitride BN+AlN

• low thermal expansion, low density
• for use in glass nozzles

Silicate ceramics:
Aluminium silicate Al2O3 60%

• very high thermal shock resistance, gas-tight; high electrical insulation even at high temperatures 1400°C
• Examples of use: Thermal engineering, wear component, resistance body

cordierite/mullite

• porous
• for filter ceramics

Steatite

• High temperature application
• for use in furnace construction or catalysts

Glasses and other ceramics:
Sapphire Al2O3 99.99%

• very good sliding properties, very good chemical resistance
• Light guides, sliding bodies, insulators, cutting components

Quartz glass SiO2 99.99%

• high temperature resistance 1000°C
• Application examples light guides and chemical use

Borosilicate for use in fibre optics
Macor

• max. 1000°C applicable, conditionally workable with conventional tools!
• For use in radiators and insulators

Our processing techniques:

• cut-off grinding max. diameter 70mm; max. length 250mm
• Surface and groove grinding max. length 300mm
• CNC contour grinding max. 200 x 130mm
• cylindrical grinding max. diameter 150mm; max. length between centres 350mm
• Centerless grinding max. diameter 50mm
• CNC round profile grinding max. diameter 100mm
• Internal honing max. inner diameter 25mm
• Flat lapping; -Polishing does not mean optical polishing for sapphire!
• Round polishing min. diameter 5mm; max. diameter 30mm

Intelligent Alternatives to Metals and Plastics
New procedures and production technologies today require the use of highly wear-resistant components. They must be able to withstand mechanical and chemical attacks or operate reliably on a low-maintenance level in high-frequency ranges.
Thanks to their diverse properties, ceramics have become an increasingly popular alternative to metals and plastics.
We offer our customers products made to measure, for application in areas with those specific conditions. Our customers can rely on our expertise in construction, material selection and production techniques that stems from 120 years of experience in the industry. We offer a varied range of silicate and oxide ceramics with different material systems and their modifications. Our own mould and prototype construction facilities provide an important foundation for the optimal use of our casting technology.
Finishing processes like grinding, cementing, gluing, reinforcing or metallising provide a wide range of possibilities for shaping and completing of the ceramic components.
Also items manufactured in small batches, or even individually, are likely to make economic sense because of their high wear, temperature and deformation resistance.

Jundro’s precision ceramic parts serve key industries, including semiconductors, medical devices, automation, defense and military, aerospace, and quantum research. The company has established strong partnerships with world-renowned enterprises and academic institutions, such as ABB,  General Electric, CETC, the Nuclear Power Research Institute, Tsinghua University, and Duke University, supplying them with high-precision ceramic components tailored to their needs.

Materials
Macor
Zerodur
Aluminum nitride
95-98% alumina
zirconia
Silicon nitride
Silicon carbide
Boron carbide
Quartz glass
Sapphire glass
Shapal-HI-M

Aerospace
semiconductor
medical field
National defense and security
Electronic field
Optical field
Energy and Automation
Scientific quantum computing and other fields

Advanced ceramics have many different chemical compositions and organizational structures, with different properties and functions, such as high hardness, corrosion resistance, and electrical insulation. It is widely used in machinery, electronics, chemical industry, smelting, energy, medicine, laser, nuclear reaction, etc.

Great Ceramic focus on ceramic materials, ceramic products, mechanical parts of the development, technical advice and sales. Compared with traditional metals, precision ceramics have high hardness, wear resistance, high temperature resistance, insulation and other superior characteristics, widely used in information and communication, aerospace, machinery manufacturing, electronic chemicals, food and medical care and other fields.

Alumina ( Al2O3 Alpha-form), Aluminum Nitride (hexagonal) , Boron Powder,
Boron Nitride Powder (hexagonal) , Titanium Diboride Powder , Titanium Nitride , Zirconium Boride Powder

Applications: refractory materials, grind porcelain, engineering ceramics etc