The de-coating is a thermal treatment applied on the aluminium scrap, used to remove from the surface of the material all the contaminants as paper, oil, links, paint, plastic.

The aluminium scrap is used as “raw material” to produce new aluminium but before to be molten again has to be “cleaned”, i.e. treated inside a de-coating unit, in order to reach the specific characteristics requested. If the scrap is not cleaned (de-coated) and is molten directly inside the furnace, the metal loss increases and the presence of contaminants in the furnace might create problems to the use of the regenerative burners, producing at the same time an additional cost of the natural gas used in the melting. The cleaning process is based on heating the aluminium scraps in a controlled low oxygen atmosphere, through direct convective exchange with exhaust fumes, which have been processed into post-combustion chamber. The experience on existing pyrolysis plants, allow to cover the following scraps: turning, cover, ground, cans, tubes or caps, cables, sheets laminated with paper or plastic, sheets coated.

Hengyang Industry is an Chinese Company based in Zhengzhou city that manufactures, on proprietary technology, plants and equipment for waste recycling and recovery with energy production, material recovery or production of finished goods.

Innovation, R&D, passionate and skilled team along with the customer satisfaction have always been the success of Hengyang and they still are the peculiarities of our Company. Besides the historical Hengyang equipment, like single and double shafts shredders, Crushing machine, briquetting machines, separators, squeezers and centrifuges, the Company offers a wide range of turn-key plants, among which:

• briquetting and pelletizing plants
• shredding plants
• Waste Sorting Plants
• Bio-fuel Plants
• Waste to Power Recycling Plants
• Mining Plants
• OEM Equipments
……..
Hengyang is able to develop customized solutions too.
Designed, constructed and assembled by the same Hengyang

The Company policy focuses on product quality: robustness and functionality of the machines that maintain their value over time.
The ability to challenge ideas and concepts and to interact with partners worldwide has allowed and still allows Hengyang to stay highly competitive and to be an ideal partner for the world market.