The Pressovac Max Dual Touch incorporates state-of-the-art features for high-production casting of platinum, gold, silver and steel with extremely fast cycle times: 3–4 minutes for gold and platinum.
- Full vacuum casting chamber to radically enhance crucible life and to remove gases from the flask, minimizing or eliminating gas porosity.
- After vacuuming, the casting chamber is flooded with inert gas to prevent oxidation of gold and platinum/cobalt alloys.
- Medium-frequency induction melting with self-stirring effect for homogeneous melts.
- Produces extremely dense castings.
Cast pieces have a very smooth surface, a very dense molecular structure and no defects such as improper filling, porosity or shrinkage.
Metal is inserted into the crucible and the flask is positioned on the cradle inside the casting chamber. The casting chamber is fully evacuated by vacuum before melting followed by an inert gas supply to create a free atmosphere.
When the casting temperature is attained, low-frequency pulses are given to vibrate and mix the molten metal, keeping it homogeneous.
Temperature is controlled by an optical pyrometer up to 2,100°C for platinum and steel, and by an immersion type-K thermocouple inside the graphite crucible up to 1,150°C for gold, silver, and bronze.
The whole crucible flask system will automatically rotate through 90 degrees and the metal, when poured in a homogeneous and controlled way into the flask, is automatically pressurized to 3 bars by inert gas. This high and quick pressurization is indispensable to obtain a proper and homogeneous filling even at low metal flask temperatures for gold, silver and bronze alloys; and above all, for platinum and special steels, which have a very narrow melting interval; thus a very quick solidification.
This results in a very smooth surface due to the effect of the vacuum and a dense, well-compacted casting due to the over-pressure of 3 bars, which benefits both thick and thin sections.
Backed by a one-year warranty. Made in Italy. Ships Truck Only.
|Galloni Pressovac MAX|
|Max. Crucible Capacity:||350g PT
600g 18K Au
|Max Flask Size: (Dia. x H)||4″ x 5″|
|Air Requirement:||100 – 120 PSI|
|Water Requirement:||3 liters/minute @ 45 PSI|
|Vacuum Requirement:||7 CFM (254-2406), (pump sold separately, see Related Products)|
|Inert Gas Requirement:||Nitrogen, helium or argon|
|Electrical*:||230V, 50/60 Hz, 3 Phase|
|Dimensions: (W x D x H)||26.8″ x 19.7″ x 47.2″
(680.75 x 500 x 1199mm)
|Net Weight:||353 lbs. (160kg)|