Forming machines are divided into overturning forming type, rotary forming type and reciprocating forming type. Overturning forming type is the most popular one; it features fast speed, high efficiency, none-overflow of pulp, even thickness of finished products as well as easy mould changing and maintenance. This machine can be equipped with different moulds to produce different products, especially is suitable for producing egg tray and other kinds of trays. Rotary forming type also has advantages of fast speed and high efficiency, but it is difficult to maintain and the cost of mould is high. Reciprocating forming type is suitable for producing industrial packing materials and inner packagings for electronic products and household appliances.