Jewellery Machines
Jewellery Recycling and Precious Metal Refining Solutions
Proses Makina provides advanced jewellery recycling and precious metal refining solutions according to customer needs, process capacity and material type. Our systems are designed for safe operation, high recovery efficiency and high purity precious metal production.
Jewellery scraps, polishing dust, precious metal residues and production waste can contain valuable metals such as gold, silver, platinum, palladium and rhodium. With the right refining technology, these metals can be recovered safely and efficiently through physical, pyrometallurgical, electrolytic and chemical processes.
Along with each refining solution, Proses Makina provides auxiliary equipment such as assay control systems, centrifuge systems, liquid neutralization units and induction melting units. These systems help improve process control, operator safety and overall production performance.
Safe Jewellery Refining Systems
During chemical refining operations, hazardous fumes, acid loading and liquid discharge must be controlled carefully. Proses Makina systems are designed with process control units, vacuum transfer systems, safety panels, emergency stop buttons, temperature control and residence time control panels.
Our systems allow operators to process jewellery materials under safer conditions with minimum direct contact with chemicals. This supports cleaner production, safer working conditions and more efficient precious metal recovery.
What Are Our Jewellery Refining Solutions?
Proses Makina offers different refining and recycling process solutions for jewellery manufacturers, precious metal refineries and recycling companies.
- Cupellation Process
- Electrolytic Refining Process
- Aqua Regia Process
- Nitric Acid Process
- Chemical Brightening System
Cupellation Process
The cupellation process is a pyrometallurgical method used to separate precious metals from impurities. In this process, jewellery scrap or precious metal-bearing material is treated with lead-based material under high temperature conditions. Impurities are removed while precious metals are collected for further refining.
After cupellation, precious metals can be processed separately through chemical refining methods to achieve the required purity level.
Electrolytic Refining Process
The electrolytic refining process is used to obtain high purity precious metals such as 99.999% gold and 99.99% silver. Under proper process conditions, valuable metals are transferred from the anode to the cathode, while impurities are separated from the refined metal.
This method is widely used by precious metal refineries to produce high purity copper, gold and silver. Proses Makina provides electrolysis systems with self-control technology, low electricity consumption, easy waste water discharge and user-friendly control panels.
Aqua Regia Process
The aqua regia process is one of the traditional chemical refining methods used for jewellery materials and precious metal recovery. Proses Makina develops process solutions for different jewellery material types, from low carat to high carat materials.
Some jewellery materials with high silver content can be difficult to process with standard systems. Proses Makina offers custom-designed refining systems according to customer demand, material composition and production capacity. Process steps, production materials and equipment types can be adapted to the project requirements.
Nitric Acid Process
The nitric acid process is commonly used for the recovery of silver and copper from jewellery scraps and precious metal-bearing materials. After dissolution, the process may include sedimentation, powder conversion, neutralization, melting and final purity control.
Proses Makina designs closed-loop and safe refining machinery for nitric acid-based recovery processes. These systems are engineered to reduce operator risk, improve process control and support efficient metal recovery.
Chemical Brightening System
Chemical brightening systems, also known as bombing systems, are designed to brighten jewellery products through controlled chemical reaction. During this process, dense fumes may occur. Proses Makina systems include hood and air treatment solutions to capture fumes before they spread into the working environment.
In order to prevent the loss of precious metals dissolved during the brightening process, the system includes a storage and recovery tank. This helps support safer operation and valuable metal recovery from process liquids.
Turn-Key Jewellery Recycling and Refining Systems
Proses Makina provides turn-key jewellery recycling and refining systems, including engineering, machinery production, process design, installation and technical training. Our solutions are suitable for jewellery manufacturers, precious metal refineries, recycling companies and industrial recovery facilities.
For companies looking for reliable jewellery recycling machines, gold refining systems, silver refining systems or complete precious metal recovery solutions, Proses Makina offers custom-designed technologies and professional process support.
