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  • Pressovac
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Pressovac Dental

GALLONI’S expertise and experience in the design and production of electronic induction casting machines for dental applications date back to the year 1948 (first producer in the world in 1957). Thousand of machines which are functioning on the global market with full satisfaction of the users are the proof of the quality of the Galloni machines. Continuous research has culminated in the development of the OKAY line which offers high work safety and simplicity of use.
In 1992 the electronic tubes were replaced by a modern electronic “solid state” system which features a lower frequency and improves the melting conditions of all alloys available on the dental market.It is important to be aware that the induction melting energy with the frequency used in our new line of machines is the same used by all global manufacturers for the production of dental alloys.

Product Description

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The magnetic field produces a stirring effect throughout the melting mass which is visible during the melting process and which guarantees the temperature uniformity of the molten metal. Moreover unlike the electric casting machines using the heating elements, temperatures over 2000 °C are reached without jeopardizing any part of the machine. For example 50 seconds are sufficient to melt 40 grams chrome-cobalt- molybdenum.
The power output is finely adjustable and works on stepless power positions which is a requirement when melting precious alloys. The high centrifugal acceleration and the vacuum/pressure casting methods are considered the best systems to obtain thin and compact casting pieces, mechanically suitable to the most demanding casting needs.

With the infrared optical temperature controller it is possible to read and hold the casting temperature, to obtain the complete fluidity of the metal which will be cast into the flask and reach the thinnest parts of the model. Each of over 150 dental alloys emits a different light, named “emissivity” that is detected by the photodiode and converted into temperature degrees with a precision ranging from ± 2% – 5%

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An accurate and long research has been carried out into the quality and shape of the crucibles. The quality to ensure the original purity of the alloys and the shape to guarantee a smooth metal flow into the flask.
A special device supplied on request, prints the “CASTING PROTOCOL” on which all casting parameters such as alloy type and quantity, casting temperature, labora- tory name and date are recorded.

Electronic Induction Vacuum/Pressure Casting Machine

It is well known that electronic induction melting is the best system for melting metals and the possi- bility of melting and casting under vacuum allows a higher purity and homogeneity thus exploiting all metallurgical properties of the alloys. Castings of high quality are formed under vacuum since the molten alloys reach the thinnest parts of the model and solidify under pressure.
All dental alloys, non-precious and precious, improve their properties with vacuum which is essen- tial for alloys containing titanium


  • higher purity of casting
  • greater homogeneity
  • better resistance to corrosion
  • prosthetic frames with minimum thickness
  • reduced reaction of molten alloy with investment
  • reduced casting oxide inclusions due to the absence of nitrogen and oxygen


produces casting machines for precious dental alloys


manufactures the world’s first induction centrifugal casting machines for dental applications


creates a new induction vacuum/pressure casting machine by a tilting system


Easy installation and extremely simple to use thanks to a graphic control panel, which supplies the nec- essary information and leads the operator through the complete casting process.
The induction heating has no temperature limits and, unlike machines using electric heating ele- ments, it requires only a little maintenance. Auto-diagnostic device to show irregular functions. Blue filter to protect the eyes from the light resulting from high temperatures.


After having loaded the crucible with metal and placed the mould into the casting chamber, a fully automated electronic control system ensures a successful melting and casting cycle under vacuum. By means of a push- button the molten metal is poured into the mould under vacuum and then pressurized precisely on completion of the pour. After 60 seconds the pressure is released, the casting chamber opened and the machine is ready to begin a new casting cycle.

PRESSOVAC offers a high degree of work safety and ease of use to cast any prosthetic pattern in all dental casting alloys (pure titanium and nickel alloys excluded) without requiring any special sprueing technique.

A metal support table fitted with wheels supplied on request, accepts the PRESSOVAC
unit, the optional ancillary tank of the compressed air, the closed circuit water cooling system and the vacuum pump.




Ceramic silicon nitride crucible with high resistance for c.c.m., titanium alloys – capacity from 5 to 80g and palladium alloys



Ceramic crucible for precious alloys with palladium contents – capacity from 15 to 80g; for no precious alloys – capacity from 15 to 80 g



Ceramic crucible, larger type – capacity 100g of: c.c.m. – titanium alloys – precious alloys containing palladium and for ceramic non precious



Ceramic container for graphite liner
Suitable for normal precious alloys (without palladium)
capacity from 5 to 60g


Interchangeable graphite liner


Special cover for graphite crucible

Additional Information

Alimentazione / Electrical

Monofase 230 V – 50/60 Hz – 3Kw – Singlephase 230 V – 50/60 Hz – 3 kW

Capacità di Fusione / Melting Capacity

da 5 a 80g tutte le leghe auree normali e palladiate, Cr Co Mo, leghe al titanio (escluso il titanio puro e leghe al nichel) / 5 to 80g all gold alloys and palladium normal , Cr Co Mo , titanium alloys (excluding pure titanium and nickel alloys )

Cilindri / Flasks Size

Ø da 30 mm a 90 mm max – altezza max da 55 – Ø 30 mm to 90 mm max – h 55 mm max.

Max Temperature

2.150 °C

Controllo ottico / Optical Control

infrarosso (± 2% – 5%) / infrared (± 2% – 5%)

Vuoto / External Vacuum Pump

con pompa esterna / with external vacuum pump

Raffreddamento / Cooling Water Supply

ad acqua 2 litri/min. con 3 bar / 2 liters/minute – 3 bar

Aria Compressa / Compressed Air Supply

8 bar

Dimensioni / Dimensions

base mm 600 x 500 – alt. mm 580 mm / 600 x 500 mm x 580 mm h.

Peso / Weight

90 kg

Garanzia / Guarantee

24 mesi / 24 months


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