Vacuum cleaning furnace was used for cleaning the ordinary spinning platesabnormal shaped spinneret plate fine denier boardcomponent housing for the terylenepolypropylene fibernon-woven fabrics etc. Of the chemical fiber cleaning industry. It can also be used for washing the filter elements. It applied the principle that the synthetic polymer decomposed under the condition that isolating from the air in the vacuum state and the high temperature around 500 degree celsius. It owns the advantages of little environmental pollution, perfect cleaning of the spinning boardsmoothed nozzle holeextension the life of the spinneret board as well as shorter working hoursenergy saving easy to operate good washing effect and high degree of automation etc. It is the updated products for replacing the triethylene glycol cleaning furnace and salt-bath furnace. Vacuum cleaning furnace is also applicable to the cleaning of the die-head and filter elements in the plastic industry