The cooling furnaces consist of furnace modules that have a standard length of 2.25m. Pennekamp has incorporated other proven details into the furnace design to increase the performance as well as the productivity of the furnaces while reducing energy consumption.
Features
Band widths up to 5.5m
Gas or electric heating
Heated zones with inner hoods as well as circulation fans and belt grates made of heat-resistant stainless steel
Entrance door made of stainless steel
Gas heating system with compact burners and all safety devices
Electric heating system based on thyristor control
Furnace completely insulated up to the cold end (approx. 300mm mineral wool)
Circulating fan with direct shaft, no V-belts (maintenance free)
Automatically controlled air intake dampers in the rapid cooling zones, i.e. in case of production stop direct reaction of the furnace to maintain the set temperature curve
Automatic control and regulation of the furnace temperature
Electronic control system for automatic optimization of air movements (drift) inside the furnace to reduce consumption (supply and exhaust air dampers)
Special fan wheels at the cold end for mixing the cold air with the air inside the furnace before contact with the glassware
Optimal temperature distribution over the furnace belt width
Easily adjustable belt run adjustment at the furnace belt drive
Optional additional cooling system at the furnace outlet
Communication link to the charging system
Conveyor return inside the furnace with self-cleaning effect
Adjustable tunnel exit temperatures, important for cold end tempering
