Trolley furnaces are only necessary in certain situations. When choosing a furnace, the first thing to consider is the furnace type. The basic principle for choosing a trolley furnace type is: for fixed-product, batch production, consider a continuous furnace or rotary hearth furnace with high productivity and thermal efficiency.
For non-specialized forging shops without a dedicated furnace model, the productivity of the forging equipment can fluctuate due to frequent changes in product type and billet size. This requires adapting the heating equipment, and a trolley furnace should offer greater flexibility. For shops producing single pieces or small batches with frequent changes in product types, a box furnace should be considered first.
The fuel type used in a trolley furnace should comply with national energy policies while also using local materials whenever possible. If you have special requirements for heating quality and productivity, consider the fuel type. For example, if you want to use a trolley furnace for batch heating, you cannot use coal. The heating process varies depending on the type of metal being heated.
For non-ferrous metals, their alloys, heat-resistant steel, etc., consider using electric heating instead of a flame furnace. When alloy steel requires preheating, a double-chamber furnace is used. For larger workpieces, a semi-continuous pusher furnace can be used. For large workpieces (over 1 ton) or large ingots, a bottom furnace of an industrial furnace can be considered for ease of loading and unloading. Therefore, it is necessary to select the appropriate trolley furnace type based on the type of metal being heated.
