Crucible Furnaces, Furnaces for Melting Precious Metals like Silver and Gold
A crucible furnace is primarily used as a casting furnace for melting non-ferrous metals in jewelry production and other applications. It operates by heating a coil, which transfers heat through the crucible where the metals are placed for melting.
The metals or alloys to be melted are placed inside the crucible. With the heat generated by the heated crucible and the coil, the temperature inside the furnace gradually rises. Once it reaches the melting point of the specific alloy or metal, the substance becomes liquid.
Melting Furnace
Electrocast crucible furnaces heat up to maximum temperature within just 15 minutes. Temperature is controlled via a PID controller. Maintaining a stable temperature is crucial when melting precious metals. For example, too high a temperature when melting gold or silver can lead to material loss through evaporation. This effect often occurs with torch melting, where temperature control requires experience. In contrast, a PID-controlled furnace maintains the set temperature, eliminating the risk of material loss.
A crucible furnace is an advanced device designed for professional thermal processing of metals, such as gold (Au) and silver (Ag). With its precise technical parameters, this furnace is an ideal choice for jewelry workshops, small production facilities, and any place where precise and efficient processing of precious metals is required.
Technical Specifications:
- Power supply: 230V
- Power: 2,5 kW
- Chamber Dimensions: Diameter 90 mm x Height 180 mm under flange
- Crucible Size Range: Complete plates for each crucible size (1-5 kg)
- Maximum Temperature: 1100°C (for gold and silver)
- Time to Reach Maximum Temperature: 15 minutes (for an empty chamber)
Key Advantages:
- Energy Efficiency: The furnace runs on 230V and has a power output of 2.5 kW, allowing for rapid heating with low energy consumption.
- Quick Temperature Achievement: The empty furnace reaches 1100°C in just 15 minutes, enabling quick start-up of the processing.
- Versatility: Complete plates allow for fitting crucibles of various sizes (1-5 kg), increasing the versatility of the device.
- Compact Design: With chamber dimensions of 90 mm diameter x 180 mm height, the furnace is compact and easy to place even in small workshops.
A crucible furnace designed for melting small quantities of precious metals. It’s ideal for casting jewelry using centrifugal, tilting, or vacuum casting machines.
Specification:
- Temperature: from 20 to 1300°C
- Power: 1600 W
- Supply Voltage: 230 V
- Crucible: 5 kg
- Temperature Controller: PID type
Top-loading crucible furnaces with dimensions of 400 x 400 x 600 mm are essential tools in the art, craft, and jewelry industries for firing non-ferrous metals. These furnaces, controlled by a PID regulator, offer precise temperature management, which is crucial for firing non-ferrous metals such as bronze, brass, or copper.
Specification:
- Temperature: from 20 to 1100°C
- Chamber Dimensions: 400 x 400 x 600 mm
- Temperature Controller: PID type
- Crucible Material: Ceramic, graphite
