Injection Molding Machine

The injection device and the clamping unit make up the two primary components of the majority of injection molding machines. Turning the plastic pellet material into a liquid falls to the plastic injection molding machines. The clamping unit supplies the force needed for clamping, closing, and other operations, which also holds the mold. Two advantages of small injection molding machines are their fast processing and economical costs. Special attention should be paid to selecting the type and size of an injection molding machine. Larger products require large injection molding machines and usually require more professional attention for proper operation. Special attention must also be paid to manual injection molding machine requirements such as mold opening stroke, mold clamping force, injection volume, screw compression ratio, injection speed, finished product appearance, performance, etc. The desired product range will determine the type of injection machine needed. There are many injection molding machine types.

Hydraulic injection molding machines

Hydraulic injection machines, as the name suggests, are hydraulically propelled. They can't just sit there, which is a disadvantage even if this strategy is quite effective. To keep the melted plastic at a consistent temperature, they must run constantly. It takes time and special care to start and shut down a computer to prevent damage. During startup, plastic that has not reached its proper temperature must be discarded for recycling. During shutdown, a user may need to remove unwanted resin from the barrel and screw to prevent resin from hardening and clogging the barrel during startup.

All-Electric injection molding machines

Compared with hydraulic injection machines, the price of all-electric injection molding machines is higher. Still, all-electric injection molding machines do not need to operate continuously, nor do they need to adjust the temperature. Compared to all-electric, injection molding can be far more effective and is more reliable. Because all-electric injection machines do not have a hydraulic system, there is no chance that liquid may leak inside the device.

Hybrid/Servo hybrid injection molding machines

Hybrid injection molding machines are highly efficient and economical. They integrate the advantages of hydraulic type and all-electric type machines and are commonly used by many companies now. These devices are reasonably priced and highly energy-efficient, which is crucial when energy expenses are a top priority. In hybrid injection molding machines, a servo motor drives a hydraulic pump to provide hydraulic pressure, which powers the machine's parts. The clamping mechanisms are simpler, more accurate, and durable, greatly reducing maintenance costs. The servo hybrid type can supply higher injection and clamping pressure than the all-electric types.