Injection molding machines
Tailored solutions for various industrial sectors
Injection molding presses are among the most advanced solutions for large-scale production of plastic components. This process relies on molds into which molten plastic material is injected, solidifies, and becomes the finished product.
At GVR, our injection molding stands out for its ability to produce complex, detailed parts, while ensuring fast, repeatable output.
Advanced precision for defect-free products
The technology behind injection molding presses is based on two main operational units.
the injection unit, which melts the plastic material and injects it into the mold under high pressure, and the clamping unit, which keeps the mold firmly shut, counteracting the force exerted during injection.
The balance between clamping force and injection precision is essential to achieve high-quality, defect-free products.
Injection molding in the era of Industry 4.0
In recent years, advanced technologies have transformed injection molding presses, improving both precision and efficiency. The introduction of CNC systems and automation has enabled programmed control of the various phases, making high-speed injection possible with optimized parameters.
These developments are aligned with the principles of Industry 4.0, where connectivity and intelligent data management help increase productivity and reduce waste.
The operating phases
The functioning of an injection press involves several stages.
Plastic material, usually in pellet form, is fed into the plasticizing screw via a hopper.
This is where it is progressively heated and rendered fluid, assisted by a rotating screw that also homogenizes it.
The molten plastic is then injected under pressure into the mold, where it remains until it has completely solidified. Once cooled, the part is ejected and the cycle can begin again.
A process for different thermoplastic materials
Injection presses are used to process many types of polymers.
The most common thermoplastics include polystyrene, ABS and polypropylene, but the process can also be applied to engineering plastics and thermosetting materials.
Some materials, such as rigid PVC, require special care to avoid problems with thermal stability.
Polyethylene too requires careful control of mold temperatures to ensure the final product meets the required specifications.
Trust GVR for injection molding
Thanks to their versatility and continuous innovation, injection molding presses have become a benchmark for many industrial sectors, from automotive components to everyday plastic objects. At GVR we provide efficient, reliable and increasingly sustainable solutions. Contact us to find out how we can help you develop high-quality plastic components and products.