An injection molding machine (IMM), commonly known as plastic injection molding machine, takes in plastic/polymer pellets, melts them, and injects the molten material into a mold under high pressure. Once the plastic cools and solidifies, the part is ejected. This is the process behind almost all the rigid plastic parts and enclosures you see and use every day

The price of an injection molding machine varies widely depending on tonnage and type. Hydraulic machines are generally more cost-effective than all-electric ones. For example, a 100-ton hydraulic machine starts around 65 million PKR (~$20,000), while all-electric machines start at about $100,000.

An injection molding machine has three to four major parts. First is the injection and plastizing unit, where the plastic pellets are melted and pushed forward into the mold. Second is the clamping unit, which holds the mold. Third is the mold itself, customized for the required part. And the fourth is the hydraulic unit, which supplies the pressure and lubrication needed to move the machine’s running components

Injection molding is used to make rigid plastic parts. For example, preforms for bottles, toys, enclosures, chairs, auto parts, and almost any other plastic part you use every day.

Cycle time is the time it takes to complete one molding cycle, from the mold closing to the part being ejected. Our machines have lower cycle times thanks to modern technology. However, cycle time is variable and depends on the mold design, cavity count, part geometry, and size. It could range from a few seconds to several minutes.

Hydraulic machines use hydraulic (oil) pressure for clamping and injection, are cost-effective, but less energy-efficient. Electric machines use servo motors only, making them precise, clean, and ideal for medical or food applications. Hybrid machines combine hydraulics with servo pumps to save energy while maintaining hydraulic power.