The vacuum granulator is used to produce high quality and homogenous master grains and alloy grains, starting from raw material molten by induction heating in a protective atmosphere, and then poured into a water tank passing through a multi-hollowed crucible that acts as flow breaker.
The vacuum granulator adopts fully vacuum and inert gas melting and granulating, the machine can automatically stir in melting and the finished products have no oxidization, producing equal particles, good color and good sphere.
The vacuum granulator is especially suitable for the easily oxidized metals and alloys.
Details of vacuum granulator
Parameter of vacuum granulator
|Power source||Three phase 380V, 50/60Hz||Three phase 380V, 50/60Hz||Three phase 380V, 50/60Hz|
|Power||15 kw||15 kw||25kw|
|Casting system||Vacuum casting system||Vacuum casting system||Vacuum casting system|
|Applicable metal||Gold, K-Gold, Silver, Copper, Brass, Bronze, and their alloys||Gold, K-Gold, Silver, Copper, Brass, Bronze, and their alloys||Gold, K-Gold, Silver, Copper, Brass, Bronze, and their alloys|
|Melting time||5-6 min||5-6 min||5-6 min|
|The Max capacity||24K Gold: 5.0 kg
925 Silver: 2.5 kg
|24K Gold: 10.0 kg
925 Silver: 5.0 kg
|24K Gold: 20.0 kg
925 Silver: 10.0 kg
|Max heating temperature||1600℃||1600℃||1600℃|
|Max. temp control k-type||1100℃||1100℃||1100℃|
|Casting chamber size||D275*H1100mm||D330*H840mm||D385*H1000mm|
|Vacuum pump (Optional)||63 m³/hour||63 m³/hour||63 m³/hour|
|Control of temperature||by PID||by PID||by PID|
|Accuracy of temperature||±2 degrees Celsius||±2 degrees Celsius||±2 degrees Celsius|
|Vacuum leakage detector||Y||Y||Y|
|Casting chamber lift||Y||Y||Y|
Features of vacuum granulator
- Heating coil with low-voltage design, insulted heating, safe, and table.
- The induction generator is designed to allow the homogenization of the alloy thanks to the stirring effect of the magnetic field which works while the metal is being melted in the crucible.
- Water in the tank is continuously circulating and it is cooled by a powerful chiller to keep the process variables under control and obtaining consistency and quality in the produced grains.
- Easy to get materials from granulating barrel and can supplement cooling water.
- The finished products have no oxidization, producing equal particles, good color and good sphere.
- The equipment is equipped with a water pump in the water tank. The vortex is generated by the water pump to keep the water flowing, which prevents the particles from sticking together during the granulation process and ensures the granules more independent.
Application of vacuum granulator