Technology for individual requirements

Our plants and process workflows

By recycling effectively we play an important role in ensuring that raw material for the steel and casting industry and metallurgical plants can continuously be produced from a variety of scrap. GMH Recycling uses technology which facilitates efficient processes and ensures the best solution for the supplied source material.

Scrap storage and handling

Our sites have a total storage capacity for several tens of thousands of tonnes of scrap. This enables us to keep large volumes of scrap available in a wide range of qualities in our warehouses, and respond to requirements at short notice. Clear and transparent storage management and distribution permits the clean separation of the various types of scrap and scrap qualities.

Scrap is stored on suitably reinforced surfaces preventing pollution of the soil and groundwater from any contaminating substances associated with the product. Rainwater is channelled through modern separators to prevent pollution of the successive waste water system. For handling we use cranes, diggers, wheel loaders, materials handling vehicles and on-site trucks. This means that large volumes of scrap can be handled within the shortest period of time. Our warehousing facilities can be reached easily by road and rail, as well as by waterway in some cases.


Briquetting plant for the reworking of grinding sludge

The challenge when reworking iron-containing grinding sludge involves making it an efficient material for further processing industries to use. In our briquetting plant we produce briquettes which are extremely solid and can be used as secondary raw material in electric furnaces.

To achieve this density, the sludge classified as hazardous waste is mixed with swarf and compacted under high pressure to form briquettes. The outgoing emulsions and residual liquids are further processed in a downstream splitting plant, residual oils are thermally recycled. ​


Bailing press

One of the technologies used by GMH Recycling is a press for the production of sheet packs. The source material used is new scrap from industry and metal packaging. The aim of pressing these often bulky materials is to ensure usability in the steel and casting industry  by facilitating overall handling due to the reduction in volume. 


Drop ball area for highly customised comminution

Efficient, safe and reliable: In our drop ball areas we crush bulky cast scrap, steelskulls and desulph skulls , by dropping a 10-tonne ball from a height of 10 metres on the source material which is lying on an anvil.

For this process we make use of material-related properties in order to comminute the source material in accordance with exact needs, and to separate adhering slag from steel and iron. The valuable raw materials are therefore made available again for the steel and casting industry, When in operation the drop ball area is closed on all sides and at the top. Consequently, we ensure that no splinters can escape and that we fully comply with sound insulation targets.


Hood-enclosed torch-cutting installations with a modern filter system

We aim to design each recycling process to be as safe and sustainable as possible. This is why we use flame scarfing in our four hood-enclosed torch-cutting installations for the breakdown of bulky scrap to customer-specified dimensions and weights. Modern exhaust filtration equipment featuring 770 filter tubes ensures that no dust escapes into the environment; approximately 140,000m³ exhaust air is purified per hour. Thus we are well within the requirements of Germany's Technical Instructions on Air Quality Control (TA Luft). We also use our hood-enclosed torch-cutting installations to prepare heavy particles for comminution using flame lances in our blasting demolition chamber.


Blasting demolition chamber

Our blasting demolition chamber is a reinforced concrete monolith built into the ground which, using a crane, is loaded with heavy particles to be comminuted. The blast holes for the cartridge explosives which, prior to this, have been pierced into the part to be comminuted under the hood-enclosed torch-cutting installations, are filled with detonators and explosives. The blasting demolition chamber is then sealed with a 360t movable lid and the explosives are ignited remotely.


Separation system for non-ferrous metals

High quality semi-finished products for the automotive industry and mechanical engineering are made from recycled metals in aluminium smelters and further metallurgical plants. In order to comply with the high quality requirements of metallurgical plants, GMH Recycling utilises the separation system technology. The separation of valuable metals and alloys such as copper, brass, aluminium, zinc and stainless steel from the waste stream of shredding plants, waste incineration plants and mechanical biological treatment plants is a process which implements eddy current separators, induction separators as well as a downstream float-sink plant. The consistently high quality of our products is ensured by the precise control we implement for these operations.