A tilting type Rotary Furnace (TTRF or TRF) is in fact an ‘inclined rotating well’ which associates the benefits of Rotary Furnaces, reverberatory furnaces and dry-hearth furnaces in a single machine. In fact, the concept of these furnaces has been around for a long time and was used before the Second World War in the copper industry. However, the technology of the time was not able to extract the full benefit from this simple but ingenious design. Today, with advances in mechanical engineering, hydraulics, refractories and particularly process control, the advantages: concept can reveal all its Eliminating or greatly diminishing the need for salt and/or

* fluxin the melt process

* Improving working conditions for furnacemen

* Melting a wide range of feedstock

* Diminishing or eliminating metal pollution' by trace elements in the charge (by free iron for example)

* Facilitating charge mixing and homogeneity

* Promoting lining 'self cleaning

* Offering low energy consumption and high thermal yields

* Ensuring faster melt rates: 2 to 3 times higher than traditional fumaces