Do You Know The Six Categories of Plastic Moulds?

Plastic moulds, which are matched with plastic moulding machines in plastic processing industry, give plastic products complete configuration and accurate size tools. According to the different forming methods, it can be divided into different types of moulds.


mold making


  1. Injection Mould

It is mainly a kind of mould which is widely used in the production of thermoplastic parts. The corresponding processing equipment of injection moulds is injection moulding machine. Plastics are heated and melted in the heating barrel of the bottom of the injection moulding machine, then driven by the screw or plunger of the injection moulding machine, through the injection moulding machine nozzle and the pouring system of the mould, the plastic is cooled and hardened and demoulded. Products. Its structure usually consists of forming parts, pouring system, guiding parts, pushing mechanism, temperature regulating system, exhaust system, supporting parts and so on. Plastic mould steel is used for manufacturing. Injection moulding process is usually only suitable for the production of thermoplastic products. Plastic products produced by injection moulding process are very extensive. From daily necessities to various complex electrical appliances, automotive parts and other parts are all moulded by injection moulding. It is a widely used processing method in the production of plastic products.


  1. Blow Mould


A kind of mould used for forming hollow products of plastic containers (such as beverage bottles, daily chemicals and other packaging containers). According to the principle of technology, the form of blow molding mainly includes extrusion blow molding hollow forming, injection blow moulding hollow forming, injection extension blow molding hollow forming (commonly known as injection pull blow), multi-layer blow molding hollow forming. Type, sheet blow moulding, hollow moulding, etc. The equipment corresponding to blow moulding of hollow products is usually called plastic blow moulding machine. Blow moulding is only suitable for the production of thermoplastic products. The structure of blow moulds is relatively simple, and most of the materials used are made of carbon.


  1. ExtrusionMould


A kind of mould, also known as extrusion moulding head, is widely used in the processing of pipes, bars, monofilaments, sheets, films, wire and cable cladding, profiles and so on. The corresponding production equipment is the plastic extruder. Its principle is that solid plastic melts and plasticizes under the conditions of heating and screw rotating pressure of the extruder. Continuous plastic products with the same cross-section and die shape are made by special shape die. Its main manufacturing materials are carbon structural steel, alloy tools, etc. Some extrusion dies will be inlaid with diamond and other wear-resistant materials on parts that need wear-resistant. Extrusion process is usually only suitable for the production of thermoplastic products, which is obviously different from injection and compression moulds in structure.


  1. Plastic-absorbing mould


A kind of mould for some simple plastic products is made from plastic sheets and sheets. Its principle is to make the plastic sheets and sheets fixed on the concave or punch die deform under the condition of heating and softening and stick them to the cavity of the mould by means of vacuum blooming or compressed air forming. It is mainly used for some daily necessities, food and toy packaging products. In terms of production. Because of the low pressure in the forming process, the suction mold is made of cast aluminium or non-metallic materials, and its structure is relatively simple.


  1. Compression Mould


It includes compression and injection moulding. They are mainly used to form thermosetting plastic molds, and the corresponding equipment is the pressure moulding machine. According to the characteristics of plastics, the mould is heated to the forming temperature (103 108). Then the measured powder is put into the cavity and charging chamber of the mould, and the mould is closed. Under the action of high heat and high pressure, the plastics are softened and viscous flow. After a certain period of time, the mould is solidified and shaped to become the required shape of the product. Compression injection molding differs from compression molding in that there is no separate feeding chamber. Before forming, the mould closes first, and the plastic preheates in the feeding chamber in a viscous flow state. Under the action of pressure, it is adjusted to squeeze into the cavity and harden to form. Compression mold is mainly composed of cavity, feeding cavity, guiding mechanism, pushing parts, heating system and so on. Injection moulds are widely used in packaging electrical components. The material used in the manufacture of compression moulds is basically the same as that of injection moulds.


  1. Mould of Highly Foamed Polystyrene


It is a kind of mold that uses the raw material of EPS (beaded material composed of polystyrene and foaming agent) to form foam plastic packaging materials of various shapes. The principle is that EPS can be steam-formed in the die, including two types of simple manual operation die and hydraulic press through foam plastic mould, which are mainly used to produce packaging products for industrial products. The materials for making this kind of mould are cast aluminium, stainless steel, bronze and so on.



JasonMould Industrial Company Limited, established in 2010, is a leading China mold factory. JasonMould specializes in plastic mould production for household appliances, medical equipments, electronic equipments, safety equipments as well as monitoring system.

The company has over 15000 square metres factory. With plastic injection tooling divisions possessing different machinery and expertise, JasonMould offers tools from small and precise mobile phone parts to as big as automotive parts. Our tools are mainly exported to U.S.A., Europe, Japan and UK. JasonMould’s diversification strategy and full service has won compliment from customers all over the world.

Our mission is to provide our customers high quality moulding products and services. We aim to exceed our customers’ expectations of pricing, quality and on-time delivery. To achieve our mission, JasonMould:

  • Commits to continually improve employee skills and efficiency,
  • Provides our employees a clean and safe working environment,
  • Upgrades machine technology and support equipment through a strict maintenance program, and
  • Maintains customers’ tooling to its highest peak of performance

For more about China injection molding cost,please visit

Inquiry Contact:

Contact person: James Yuan

Company name: JasonMould Industrial Company Limited

Address: LongGang Village,LongXi Town,BoLuo County,HuiZhou City,GuangDong Province, China

Telephone: 86-752-6682869

Email: [email protected]


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