99% 95% Al2O3 Alumina Ceramic Ring
Dense alumina rings for pump seals, insulators and wear seats, in 95% and 99% grades.
- MaterialAlumina ceramic
- SizeCustomized
- ShapeRing

Seventeen standard ranges in zirconia, alumina, steatite, silicon carbide and silicon nitride, plus anything made to drawing.
Every part below is photographed as it ships. Sizes outside the listed range are made to your drawing.
Dense alumina rings for pump seals, insulators and wear seats, in 95% and 99% grades.
Ground and polished zirconia plungers for dosing pumps and high pressure cleaners.
Made to drawing zirconia structural components for machinery, fibre optics and food equipment.
Lapped alumina discs for pump and tap cartridges that have to seal on water for years.
Bush, bead and fish spine steatite insulators for heating element leads.
Sticks, strips, channels, bricks, knuckles, tiles and blocks for 1100°C electrical service.
Alumina yarn guides and eyelets in standard D6*5 to D10*10 sizes or to your drawing.
Furnace work tubes and thermocouple protection tubes rated to 1650°C.
Substrates from 0.1mm thick, with in-house laser cutting, drilling, scribing and marking.
Non-magnetic zirconia blades that hold an edge in wet and corrosive cutting.
Black Si3N4 blades with the best all-round mechanical package in structural ceramics.
Mo/Mn metallized and Ni, Cu, Ag or Au plated rings ready to braze.
Silicon carbide rings and cylinders held to ±0.005mm.
1 to 8 hole ceramic heating strips for flexible pad heaters up to 1650°C.
18th and 25th replacement clipper blades with up to 5x the life of steel.
Injection moulded 99% alumina blanks and finished plates, MOQ 1 piece.
Centreless ground zirconia rod, custom size and colour, low MOQ.












We specialize in zirconia ceramic, alumina ceramic parts, steatite ceramic and SIC SI3N4 parts. Find a reliable precision ceramics manufacturer for you.
Yes. Our main business is OEM and ODM. Please show us your drawing.
Sample delivery in 4-7 working days. It is 15-30 days if the goods are not in stock, according to the dimension and quantity.
Yes, we could offer the sample free of charge but do not pay the cost of freight.
Payment <= 1000USD, 100% in advance. Payment >= 1000USD, 50% T/T in advance, balance before shipment.
We follow standard packaging protocols to protect your products during transit and will provide photographic documentation of the packing and shipping process for your reference. In the event of transportation damage caused by non-human factors, we will promptly arrange a free replacement shipment to ensure your order is not affected.
Of course, we will consider discounts for large-volume orders.
Yes, we promise to provide quality assurance for all products, inspect according to your drawings and issue an inspection report. If you are not satisfied with our product quality or service, please feel free to give us feedback.
Most of what we ship is made to a customer drawing rather than picked from this list. Send yours.