Vacuum investment casting is the process used in lost-wax technique to get a metal replica from wax or resin patterns.
The pattern is designed and then built in wax or resin by different equipment as CNC, 3D printers, by means of wax injection in a mould, or even manually.
You may use either investment molds or metal permanent molds.
Furnaces or complete foundries setup for casting of Au, Ag, Pt or Pd alloys can be supplied for any application, including vacuum melting into permanent molds.
For precious metal powder production, TOPCAST has developed water and gas Atomizing Furnaces, complete with cyclone filtering system and dryer for a key in hands solution. Gold alloy powders and silver alloy powders are commonly used in SLM systems for 3D rapid prototyping of jewellery.
TOPCAST designs and manufactures vacuum and inert-gas furnaces for precious metal ingots, sheets, rods and grains production in batch production.
For the refinery and recovery of precious metals, precious ashes melting, alloy homogenization and scraps melting, TOPCAST proposes its wide line of Induction Melting Furnaces, starting from 5 kW to 500 kW.
Joystick-assisted crucible tilting mechanism is provided either with electro-mechanical or hydraulics control.
Supplies may also include water chillers, fume extraction systems and all ancillary equipment for foundries.
For precious metal assaying TOPCAST proposes a key-in-hand solution for cupellation assay lab. The offer includes: