Technical characteristics of coal-fired hot air rotary furnace : (1) Specialized stainless steel material with special combustion design, heat resistance, corrosion resistance and heat dissipation. It has high heating efficiency, high permanent burning, clean and environmental protection and no pollution. (2) Microcomputer digital display automatic temperature control, hot air circulation, car rotation, uniform air supply device to make the fire color more uniform and gorgeous. (3) The coal-fired hot-air rotary furnace is issued with a timed alarm, and the 32-disc whole-carriage is in and out of the baking, which has low energy consumption and large output, saving time and labor and labor. (4) Both self-contained and sub-packaged designs. If the machine cannot enter the machine due to the size of the door of the user's workshop, sub-assembly on-site assembly is optional. (5) The coal-fired hot-air rotary furnace adopts the national patent technology, the furnace is not burnt permanently, the effect of burning coal and fuel is the same, and the temperature control precision is within 5 degrees. (6) The coal-fired hot air rotary furnace has unique core expertise and won the national patent technology. Its high thermal efficiency, uniformity of fire color and reliability of use are not comparable to other similar products. (7) High-density nano-insulation layer, good thermal insulation effect. (8) The Siemens turntable stops the positioning device to make the operation easier. (9) The energy-saving and consumption-reducing effect of the coal-fired hot-air rotary furnace is obvious, and the average coal consumption for 30 hours is about 30 kg. (10) Intelligent humidification system can adjust the humidity inside the furnace to meet the process requirements of special products. (11) High temperature resistant tempered glass door with built-in fluorescent lamp to observe the whole barbecue process.