Plastic Injection Molding Companies

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Plastic Injection Molding Machine

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Plastic injection molding machine plays a very important part in our daily lives. Most of the machinery we use has come out of these machines, be it the computer, the air conditioner or your car, most parts have come out of this machine yet most of us are unaware of what these machines are and what they do. So here are some basic facts to get you better acquainted with this molding machine.

These machines range in size from a table top to a garage. Tiny plastic products like medical parts are made in micro molding machines. Micro machines make parts so small in size that microscopes are needed just to see them. These machines are very accurate and the details on the parts they produce are always precise. The medical grade plastic used to make these parts can cost up $5000 per pound.


The production range of these machines varies from normal to very high. Some high production molding machines can produce up to 200million parts per year. High quality molding machines can cost around $750,000. This is usually the price of the machine without any mold or accessories. The molds, an absolute must for every machine are installed later. A plastic molding machine has to be able to heat the plastic at very high temperatures in order to melt it and at the same time work efficiently at high temperatures. The molten plastic is then poured into the molds. The molds have to be of high quality and very precisely made in order for the finished product to be accurate and detailed.

The two halves of the mould close with immense pressure, so much so that if a human gets caught between the two halves he will be crushed. The machines are equipped with pressure sensors but if the sensors are switched off or not working everything that comes in the press or the molding section of the machine is crushed. These days some machines operate 24/7 without any human presence. This is known as “lights out”.

These days the plastic injection molding machine has become very environment friendly. If they are set up properly there is very little pollution. The newer machines are specially eco friendly. Even the plastic used can be recycled and biodegradable. These machines are responsible for making a wide range of products, from soda bottles, gun parts, shoes, endoscopic devices to space shuttle components.

A god quality molding machine can operate profitably for decades. The molding business is very profitable at times but the competition is high and many companies have to go into merger to survive. The international competition has become fierce as new companies making high quality machines have come up. Some of the most popular companies in the plastic injection moulding machines are Husky, Engel, Battenfeld, Demag, Boy, Arburg, Milicron, Netstal, Negri, Bossi, Nissei, Toshiba and VanDorn. In the modern world, the plastic injection molding machine has become the new workhorse that is providing us with many daily uses, technical and luxury items.