Vacuum Crucible 

High purity 99.95%  Vacuum Crucible 

1. High purity machined graphite crucible, which is machined according to customers' drawing from large graphite blocks. 

it is widely used in melting of glass, precious metals, rare earth, zinc, silver, gold, ceramics etc. 

2. Graphite clay crucible.This kind of graphite crucible is pressed in mold of mixtures of graphite powder and clay. 

3. Graphite SiC crucible. This kind of crucible is isostatic pressed in mold of mixtures of graphite powder and Silicon carbide. 

The second and third kinds crucibles are widely used in melting iron, steel, copper, aluminum, tin, zinc, silver and gold etc.