The bell type furnace consists of a heating cover, two furnace bases and valve racks. The furnace lining is composed of fiber aluminum silicate needle felt folding block, which greatly reduces the weight of the cover body, improves the heat preservation effect and reduces the energy consumption. The heating element is hung evenly around the furnace jaw with resistance belt and fixed with ceramic screws, which is firm and durable. The furnace base is in a round shape, made of refractory materials, with sand sealing groove reserved, so as to achieve the sealing effect. The electric control cabinet adopts PID zero crossing temperature controller to adjust the power and temperature in the furnace
And it has over temperature alarm function. And according to the needs of customers to make pull-up machine, configuration software dynamic display.