Blind Hole Balls

blind hole balls

Ruby blind-hole balls are based on Ruby Balls and Sapphire Balls, using high purity man-made blue/ruby single crystal as material. Ruby balls and blind-hole balls are made by utilizing the characteristics of Ruby materials such as corrosion resistance, abrasion resistance, and good optical transmission performance.

GELINDE’s blind hole balls are often used in flow meters for liquids or gases in highly corrosive environments, precision measurements, microfluidic spools, ball valves for flow meters, plugs for optical fiber communication equipment, and linear code readers.

Diameter(mm) Diameter of blind holed(mm) Height of blind holed
0.30~1.20 0.15~0.80 Approx. SΦ/2, invalid depth not more than 0.20
1.20~8.00 0.80~5.00
8.00~12.00 3.00~7.00

Material: ruby, sapphire( if you need silicon nitride, zirconium oxide and other ceramic materials, please contact with our sales).

Inspection and Packaging
100% under microscopic inspection before delivery
100% clean room inspection and packing
Packing Method:
– Clean Vacuum Plastic Bag
– Clean Glass Bottle + Plastic Bag
– Clean Waffle Tray