Injection Molding

The impact of injection molding on the economy is even bigger than you think. As its invention in 1872, the injection molding process (along with the plastics industry) has transformed into a multi billion dollar industry. Injection molding manufactures around 32 % of plastics by weight. Due to this process, the construction of a large amount of durable consumer and industrial items essential to us are made cheap.

Specifications and components of the machine

A typical injection molding machine is made up of the following components: the injection system, mold system, hydraulic system, clamping system and control system. For thermoplastics, the injection molding machine turns pelleted or even granular raw plastics into final molded parts using of the following: melt, inject pack and cool cycle.

Clamping tonnage and shot size are mostly used to quickly identify the size of the injection molding machine for thermoplastics.

Other variables are as follows: injection rate, screw design, injection pressure, thickness of mold as well as the distance between tie bars.

Functions of the machine

Injection molding machines are classified into 3 categories namely based on machine function: general purpose machines, precision tight tolerance machines and high speed, thin-wall machines.

Injection moldings machines also operate using auxiliary equipment, the most crucial of which include resin dryers, part-removal robots, granulators, materials-handling equipment, mold temperature controllers and chillers and part-handling equipment.

Expert injection molding companies

Some companies are experts in plastic molding injections. They will be able to manufacture plastics of difficult or high volume parts from a great deal of engineering resins.

They also offer plastic injection molding and tooling services. These companies typically have a design group which can assist you with plastic mold and parts designs you require. They’ve factory controls that can inspect and monitor the process of the parts along with the latest in inspection equipment. This makes it possible for them to match probably the closest tolerance and provide quality that is consistent.
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