Injection molding is a versatile manufacturing process with a long history.

From the time first injection molding machine was patented in 1872 until the creation of the screw injection molding machine, a standard piece of molding equipment in the industry today, the injection molding industry has expanded tremendously by satisfying high volume, low cost manufacturing requirements.

Originally used to manufacture relatively simple products, such as buttons and combs, the injection molding process has evolved considerably over the years. Decatur Mold has been a part of this history since 1966.

Basics of the Injection Molding Process

At its core, the injection molding process is a relatively simple one. Molten plastic is forced into a mold, often called a die or a tool, shaped like the desired finished product. The plastic cools in the mold, taking the shape of the product, and is ejected. The part is completed after minimal secondary processing.

Injection molding allows for the use of a large diversity of materials — plastic pellets can be premixed, or mixed directly into the hopper of a molding machine, to meet virtually any specification. The process can also produce parts of extremely complex geometries which would be difficult, costly, or impossible to produce by other means.

Other benefits of injection molding include very high production rates, long tool lifespan, minimal tool maintenance, and excellent repeatability.

Injection Molding with Decatur

At Decatur Mold, we operate a state-of-the-art 87,000 square foot production facility, fully climate controlled to protect the lifespan of your tool, 24 hours a day, seven days a week.

Our primary molding equipment includes nine Nissei injection molding machines ranging in tonnage from 72 to 946, with optional RJG eDART process control systems, 13 dryers, and a range of inspection equipment. Operating this molding equipment is a highly expert team of designers, engineers, technicians, and quality control specialists.

Over the last half century, we have produced parts of industry leading quality for a range of fields, from the consumer and appliance industries to the automotive industry, and from the military and defense industry to the medical industry.

To learn more about Decatur Mold and our injection molding services, including mold design, contact us today.