In the plastic processing sector, plastic mixers play an important role: a homogeneous and constant mixing allows obtaining quality products. In this article, we will see how plastic mixing machines work and all the advantages of a good mixing process. Then we will present the features and advantages of Vismec horizontal mixers.

Mixing machines for plastic granules: how they work

Plastic mixing machine combine different types of plastic granules uniformly. These machines find application in various sectors, such as the production of plastic components for automotive, consumer electronics and packaging industries. The mixing process begins with the introduction of plastic granules into the mixer: once inside, the machine’s rotating blades start to move, mixing the material. Plastic polymers usually melt and mix at high temperatures, so industrial plastic mixers are designed and built to operate at very high temperatures. The result of the mixing, as mentioned, must be as homogeneous as possible. And a uniform mix generates several advantages. Let’s see them all.

  • Product quality. Good mixing preserves the physical and chemical properties of the finished product and makes them durable. Elements like strength, flexibility, and aesthetics can be affected by suboptimal mixing of plastic granules. This characteristic is especially important for technical, engineering and advanced sector applications, where the mechanical properties of plastic products must be consistent and predictable.
  • Colour uniformity. If the plastic granules are not mixed uniformly, the colour of the final product may appear not uniform.
  • Production process efficiency. The reduction of defects through a well-designed mixing process optimises production efficiency, decreases waste, scraps and returns, consequently reducing management costs.
  • Moulding process stability. In injection or extrusion moulding process, that are two of the most common plastic processing methods, a preliminary homogeneous mixing of the plastic granules ensures a more stable melting and material distribution. This reduces process variations and improves product quality.

As we will see in the next paragraph, Vismec mixers have technical characteristics that allow for a qualitatively better mixing when compared to the solutions offered by competitors.

Vismec horizontal mixers: why to choose them

Vismec plastic mixing machines are a key element of the plastic granules dosing systems we design and produce. 

What sets them apart is the mixing system, which is innovative, if compared to similar products available on the market. The material mixing flow occurs along the horizontal axis, unlike in the more common vertical mixers. Operatively, in horizontal mixers, the blades are positioned along a horizontal axis, allowing for a smoother and more continuous movement of the materials. 

This type of mixing is particularly effective in ensuring that all granules are uniformly exposed to the blades, minimising accumulation zones, ensuring better heat distribution, and allowing for a more homogeneous mixing of the material, with the consequent advantages we listed earlier. 

In terms of design and construction, the horizontal mixers produced by our company:

  • have a stainless steel structure;
  • withstand high temperatures, up to 200°C;
  • work in three distinct operating modes: ON, with timer and externally enabled. The timer mode is adjustable.
  • have a 6 languages LED graphic display that allows immediate visualisation of the operating status;
  • allow for easy maintenance without supporting tools.

In addition, optional extras include wear-resistant mixing blades suitable for fiberglass materials, to broaden the application spectrum to the different needs of client companies.

Would you like to know more about the advantages Vismec horizontal plastic mixers can bring to your business? Contact our technical team: we will be happy to provide you with all the relevant specifications.