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  • Pressovac MAX
  • Pressovac_MAX_gallery02
  • Pressovac_MAX_gallery01

Pressovac Max

The system used by our Pressovac series casting machines was specially developped for dental labs where casting perfection is absolute: casting pieces have a very smooth surface, a very dense molecular structure and without defects like unproper filling,porosity and shrinkage. Metal is inserted into the crucible and the flask positioned on the cradle inside the casting chamber.

Product Description

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CASTING CYCLE is fully automatic

The casting chamber is fully evacuated by vacuum before melting, followed by helium gas supply to create an inert atmosphere.Helium gas has an excellent gas fluidity which provides a cleaning effect of the molten metal and mould and guarantees a smooth filling of metal even of the most intricate patterns.The casting temperature is attained and low frequency pulses are given to vibrate and mix the molten metal by keeping it homogeneous. Temperature is controlled by an optical pyrometer up to 2100°C for platinum and steel and by an immersion type “S” thermocouple inside the graphite crucible up to 1450°C for gold,silver and bronze.

At this stage, just by pushing a button, the whole crucible/flask system will automatically rotate 90° and the metal, once poured in an homogeneous and controlled way into the flask, it is automatically pressurized to 4 bars by argon 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 4 bars, which benefits both thick and thin sections.

FEATURES OF THE PRESSOVAC SERIES

– Extremely robust water-cooled casting chamber
– Autimatic tilt
– Rapid pressurization up to 3 bar, permitting lower metal and flask temperatures

COMPETITORS

Most of our competitors machines have relatively weak casting chambers which cannot, thus, be pressurized up to 4 bar; gas pressure has to be applied slowly to the molten metal after pouring.This necessitates significant raising of both flask and metal temperatures in order to achieve adequate filling, leading to porosity and rough surface problems due to these high temperatures. Also – the manual tilt which is also a feature of other machines can lead to inadequate filling due to slow pouring or, alternatively, metal spillage due this this being too rapid.

CRUCIBLES KIT

Au KIT

Au KIT

A100.576 Graphite crucible cemented with its container for gold and silver (60 cc)
A100.577 Lid cover for crucible
A100.575 Graphite thermocouple sheath
A083.049 Spare thermocouple type “S” 1450 °C
P05042 Melting coil (3647.1)
P005062 Crucible holging plate complete with crucible lid cover holder mechanism
Pt KIT

Pt KIT

A100.512 Ceramic crucible (20 cc)
P05058 Melting coil (3650.1)
P05061 Crucible holging plate complete with crucible lid cover holder mechanism
Acciaio / Pd KIT

Acciaio / Pd KIT

A100.568 Silicon carbide crucible (40 cc)
P05058 Melting coil (3650.1)
P05058 Crucible holging plate complete with crucible lid cover holder mechanism
Acciaio / Pd KIT (grande)

Acciaio / Pd KIT (grande)

A100.578 Silicon carbide crucible (75 cc)
P05080 Melting coil (3656.1)
P05091 Crucible holging plate complete with crucible lid cover holder mechanism
La PRESSOVAC MAX will be supplied outfitted with one kit choosen by customer. Extra kits on request must be ordered separatly

Additional Information

Alimentazione / Electrical

Trifase 230/400 V – 50/60 Hz – 6 kW / Threefase 230/400 V – 50/60 Hz – 6 Kw

Volume Crogioli / Crucible Volume

Au/Ag – A100.594 (60 cc) Graphite
Pt – A100.512 (20 cc) Ceramic
Steel/Pd – A100.568 (40 cc) Silicon carbide
Steel/Pd – A100.578 (75 cc) Silicon carbide

Cilindri / Flasks Size

Ø min. 80 mm – Ø max. 100 mm
h min. 80 mm – h max. 150 mm

Max temperature

2150 °C

Controllo ottico / Optical Control

Pirometro ottico infrarosso (± 2% – 5%) per platino e acciaio fino a 2100°C – Termocoppia ad immersione tipo “S” fino a 1450°C per oro e argento / Optical infrared pyrometer (± 2% – 5%) for Platinium and Steel till 2100°C – Thermocouple Type “S” till 1450°C for Gold and Ag

Vuoto / External Vacuum Pump

con pompa esterna / external vacuum pump 8 m3/h – 0,005 mbar

Raffreddamento / Water Cooling Supply

ad acqua 2 litri/min. con 3~4 bar con pompa ad acqua a circuito chiuso (su richiesta cliente) / 2 litres/min. 3~4 bars with closed circuit water pump (optional)

Aria Compressa / Compressed Air Supply

8 bar

Gas / Inert Gas Supply

Elio, Argon, Azoto / Helium, Argon, Nitrogen

Dimensioni / Dimensions

base mm 680 x 490 – h mm 1200

Peso / Weight

160 kg

Garanzia / Guarantee

12 mesi / 12 months

Download

Pressovac_ITPressovac IT
Pressovac_ENPressovac EN

Video

Video amatorialeItaliano 3DEnglish 3DEspañol 3DRussian 3D
Brochure PRESSOVAC 2013 ING FRONTEBrochure PRESSOVAC 2013 ING FRONTE
Brochure PRESSOVAC 2013 ING RETROBrochure PRESSOVAC 2013 ING RETRO
Brochure PRESSOVAC 2013 ITA  FRONTE@Brochure PRESSOVAC 2013 ITA FRONTE@
Brochure PRESSOVAC 2013 ITA  RETRO@Brochure PRESSOVAC 2013 ITA RETRO@

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