KORAS® offer complex solutions in the field of the precious metal recycling technology, including also refining, wastewater treatment, incinerators, exhaust systems and laboratory technology.
Thorsten Koras, founder of the company, is in touch with the market and understands the needs of customers.
He is a technology expert with more than 30 years of experience: Customers on all five continents benefit from his expertise, reliable advice and economic solutions.
For more than six years, KORAS® GmbH is active on the market and is continuously developing several innovative and economic systems in the premium class. This year in spring, we launched two new products on the market, the GRC Gold Recovery System especially to recover gold from different kind of wastes. In addition to our well-known electro-polishing machine Aqua-Pol® the Aqua-Pol® Micro.
Precouis Metall Refining:
The GRC Gold Recovery System is especially to recover gold from grinding and polishing sludge, scraps, sweepings and ashes. As a matter of course the recovery of gold from solutions such as rinsing baths, polishing baths etc. is also possible.
It consists of a completely new concept of a dissolving unit and an electrolytic cell. In one step, the precious metals can be recovered directly from the above mentioned waste.
The dissolving at room temperature additionally saves energy costs.
Electro-polishing is the most gentle and cleanest way to give jewelry pieces a pure surface, for further process. The new Aqua-Pol® compact system achieves this quickly and economically with precision and only requires little space. Furthermore KORAS® has developed process liquids whose qualities are considerably superior to standard electrolyte. Effectiveness in a wide range of applications, easy handling and a long service life – the electrolyte from Koras GmbH achieves measureable advantages.
This gold refining tumbler is a new technology compared to the static refining plants. This refining unit consists of a PPH-tumbler inclined to 30° and rotated by a motor, with the possibility to adjust the rotation speed. Thanks to the rotation forces, the gold grains continuously rub against each other and remove the silver chloride. This procedure reduces the complete dissolution time. The unit is available in different sizes from 2,5 kg to max. 360 kg output per production period.
especially for small parts
Electro-polishing is the most gentle and cleanest way to give jewelry pieces in an industrial production process a smooth, ultra-pure surface, for further processes. Our Aqua-Pol® product lines achieve this very efficiently with precision and the system requires only a small amount of space. This is possible by its ingenious design with internal running rotors.
Suitable especially for very small parts without hanger or loop
(bulk volume 250 – 300 ml per process)
Jewelry and medical pieces made of
• silver etc.
• polishing of cast, 3D-printing, electroforming pieces
• polishing of filigree parts without changing the shape
• cleaning of tarnished pieces
Decisive: the electrolyte
We have developed process liquids whose qualities are considerably superior to standard electrolyte. Effectiveness in a wide range of applications, easy handling and a long service life – the electrolyte from Koras GmbH achieves measureable advantages.