Qisheng Thermoforming Machinery Co.,Ltd

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As an common method in pulp molding industry, vacuum forming is achieved by vacuum filtration technology. Place dies  (also called molds) into approximate 1% concentrated pulp solution, and make sure negative pressure is generated inside the cavity with the help of vacuum. Fiber contained in pulp slurry deposits evenly on the surface of mesh of molds, and finally huge amounts of moisture content is drained off while vacuum suctioning. When required thickness of product is fulfilled, forming mold transfer from pulp and proceed with squeezing and dehydration until moisture of wet product reaches at 75%~80%, and then wet product falls off by the action of compressed air inside cavity of mold.