Bogie Hearth Furnace

Whenparts or charges that are to be loaded onto a furnace are heavy and requirematerial handling facility for loading and unloading, a moving bogie or hearthis provided to make this easier. Once the hearth moves out of the furnaceheating chamber parts can be loaded by means of an electrical overhead crane(EOT), gantry system or mobile crane / forklift mechanism. If required, specialcharge loading mechanisms can also be provided based on the user’s job profile,lack of material handling facility or overhead space constraint. The bogiemovement is motorized for easy handling. Similarly the door movement would bewith motorized gear drives or hydraulically / pneumatically actuated.

High temperature applications include sintering, hardening, annealing andnormalizing whereas lower temperature applications include tempering and stressrelieving. The control system is provided with options to set and control theramping rate, soaking rate and cooling rate depending on the process cycle, theoption of PLC based control is also available. The furnace can be used in openatmosphere or controlled atmosphere as per application. We provide designs within and out bogie (hearth) movement as well as through and through double doorbogie movement if required for an assembly line or process line.

The mode of heating can be via electrical heaters, gas fired or oil firedburners as per the user’s requirement. The furnaces of J R Furnace are energyefficient achieved by efficient sealing to prevent undue heat losses andthyristor power controls to limit current consumption. Design factors alsoensure excellent temperature uniformity throughout the heating chamber so thatparts are universally and evenly subjected to process parameters and heating cycles.