Plastic injection machines produce different shapes and sizes of plastic products in large volumes. They have an injection device and a clamping unit. Most plastic manufacturing industries use cheap plastic injection machines because they are cost-effective, efficient, and ensure fast processing.
These machines work by melting plastic pellets and molding them into the desired shape. The process starts when a hopper feeds plastic pellets into the machine, which are heated into a molten state. After this, the molten plastic goes into a mold under high pressure. The plastic then cools off and hardens, taking the shape of a mold cavity. A part of the molding injection machine then ejects the finished product.
There are three main types of plastic injection machines for sale: hydraulic, electric, and hybrid. Hydraulic plastic injection machine equipment uses hydraulic power to operate. They are simple to operate and maintain, making them an ideal option for smaller industries or startups. These machines offer quick, efficient, and consistent performance. However, they tend to be noisy during operation. Electric plastic injection machines are more expensive than hydraulic machines and cost up to 900,000 USD. They respond quickly to speed and pressure changes to ensure maximum productivity. These electric injection machines are energy-efficient, accurate, low maintenance, and generate less noise. Hybrid or servo hybrid plastic mold injection machines integrate the best features of hydraulic and electric machines. These machines are energy-efficient and have exceptional clamping force. They offer a wide design variety as they can accommodate thin and thick-walled plastic parts.
Vertical plastic injection machines operate vertically and have a small footprint to fit in tight spaces. They are mostly used to produce small plastic parts. The price for vertical injection machines ranges from 600 to 30,000 USD. Horizontal mold injection machines have low body height, simple feeding, and are easier to operate and maintain. These machines cost up to 474,400 USD.