The vacuum granulator uses inert gas to protect the smelting metal. After the smelting is completed, the molten metal is poured into the water tank under the pressure of the upper and lower chambers. In this way, the metal particles we obtain are more uniform and have better roundness.
Secondly, because the vacuum pressurized granulator is protected by inert gas, the metal is casted in the condition of completely isolating the air, so the surface of the casted particles is smooth, free of oxidation, no shrinkage, and extremely high gloss.
Precious metal vacuum granulator, including a crucible for holding metal and a heating device for heating the crucible; a sealing chamber is provided outside the crucible; the sealing chamber is provided with a vacuum tube and an inert gas tube; the sealing chamber is provided with a chamber door for easy metal insertion and a cover plate; the bottom of the crucible is provided with a bottom hole for the outflow of the metal solution; the bottom hole is provided with a graphite stopper; the upper part of the graphite stopper is connected with an electric push rod for driving the graphite stopper to move up and down; a turntable is arranged below the bottom hole; A driving device is connected; a cooling water tank is arranged under the turntable for cooling the metal droplets falling from the turntable; the turntable and the cooling water tank are located in the sealed chamber; the side wall of the cooling water tank is provided with a cooling water inlet and a cooling water outlet; The cooling water inlet is located in the upper part of the cooling water tank, and the cooling water outlet is located in the lower part of the cooling water tank. The formed metal particles are relatively uniform in size. The surface of the metal particles is not easy to be oxidized, and the inside of the metal particles is not easy to generate pores.
1. It’s a Big different. Our vacuum shot maker applies high vacuum degree vacuum pump and vaccum sealing is much tight which enables good casting grains.
2. Stainless steel body ensures high quality materials, external beautiful design utilize ergonomic design. Internal electrical equipment and components are modular designed.
3. Hasung original parts are from well-known Japan and German brands.
4. Pay attention to every detailed part’s quality.
Model No. | HS-VGR20 | HS-VGR30 | HS-VGR50 | HS-VGR100 |
Voltage | 380V 50/60Hz; 3 phases | |||
Power | 30KW | 30KW / 60KW | ||
Capacity (Au) | 20kg | 30kg | 50kg | 100kg |
Application metals | Gold, Silver, Copper, Alloy | |||
Casting time | 10-15 min. | 20-30 min. | ||
Maximum temperature | 1500 ℃ (degrees celsius) | |||
Temperature accuracy | ±1℃ | |||
Control type | Mitsubishi PID control system / Mitsubishi PLC Touch panel | |||
Casting grain size | 1.50 mm – 4.00 mm | |||
Vacuum Pump | High level quality vacuum pump / Germany vacuum pump 98kpa (Optional) | |||
Shielding gas | Nitrogen/Argon | |||
Machine Size | 1250*980*1950mm | |||
Weight | Approx. 700kg |