How To Choose The Right Used Injection Molding Machines

 

Used Injection Molding Machines

Are you looking for the right used injection molding machine to use in the production of plastic products in your business? Since there are many varieties of used plastic machinery on the market, you need to know how to separate the good from the bad and choose the most suitable one for your production needs. The following are some of the factors you should take into consideration when looking for the right machine to buy.

Shot size is one of the things that you should definitely pay attention to when you are looking for the right used injection molding machines to buy. This is best defined as the maximum amount of plastic that the injection molding machinery can inject into the molding cavity during one molding cycle. The amount is rated in ounces of GPPS for U.S. machines, and cm3 for European and Asian machines. Before you settle for any machine, it is good to check if it is capable of producing 30 to 40 percent greater shot sizes compared to what your parts require.

Another factor you should consider when looking for a good used plastic injection molder to buy is ejector stroke. This is the action of the machine pushing out (ejecting) the final workpiece from the platens using ejector pins. The ejector in the injection molder pushes against an ejector plate on the mold. Ejector pins or rods are attached to this plate and perform a pushing operation on the molded part after the plastic has hardened and the mold has opened.

After the action of molding the workpiece is completed, the mold opens and then the ejector pins slowly extend outwards, pushing finished part out of the mold cavity. The pin movement is timed with the mold opening, since the pins that move too quickly could impact the plastic workpiece and damage the final product and pins that move too slowly may not eject the molded part fully.

For more tips on how to choose the right used injection molding machines, visit our website at https://www.premierplasticsnj.com/

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