What are the advantages of using rotational molding equipment to process products?

Suitable for molding large and oversized parts

The vast majority of plastic molding processes, during which plastic and molds are subjected to considerable pressure (pressure), such as injection molding, compression molding, extrusion, blow molding, etc., are widely used. Therefore, when using these molding processes to produce large plastic parts, not only must molds that can withstand great pressure be used, making the molds bulky and complex, but also plastic molding equipment must be designed and manufactured very firmly, The difficulty of machining and manufacturing the machine model correspondingly increases, and the cost increases.

On the contrary, due to the rotational molding process of rotational molding equipment manufacturers, only the strength of the frame is required to support the weight of the material, mold, and frame itself, as well as the clamping force to prevent material leakage. Therefore, even for large and extra large plastic parts, there is no need to use very bulky equipment and molds. The processing and manufacturing of the machine mold is very convenient, with a short manufacturing cycle and low cost. In theory, there is almost no upper limit on the size of parts formed by the rotational molding process. It is impossible to produce such a large plastic container using blow molding without the need for expensive and bulky blow molding equipment.

2. Suitable for the production of multiple varieties and small batches of plastic products.

Due to the fact that the mold used for rotational molding is not subjected to external forces, the mold is simple, inexpensive, and easy to manufacture. In addition, the rotational molding equipment also has great maneuverability. A rotational molding machine can install a large mold or arrange multiple small molds. It can not only mold parts of different sizes, but also simultaneously shape products of extremely different sizes and shapes. As long as the raw materials used for the rotational molding products are the same and the thickness of the products is the same, they can be formed simultaneously, Therefore, the rotational molding process has greater flexibility compared to other molding methods.

3. Rotational molding can easily change the color of the product.

Rotational molding directly adds materials to the mold each time, which allows all materials to enter the product. After being removed from the mold, the materials required for the next molding are added. Therefore, when we need to change the color of the product, we do not waste any raw materials, nor do we need to spend time cleaning the machine and mold. When we use multiple molds to roll shape the same plastic product, we can also add different colored materials to different molds and roll shape different colored plastic products.

4. Suitable for forming hollow parts of various complex shapes. In the process of rotational molding, materials are gradually coated and deposited on the inner surface of the mold. The products have a strong replication ability for Fine structure such as patterns on the mold cavity. At the same time, because the mold is not subject to external pressure during the molding process, the mold with Fine structure and complex shape can be made directly by precision casting and other methods.

5. Save raw materials. The wall thickness of the rotational molding product is relatively uniform and the chamfer is slightly thicker, so it can fully utilize the efficiency of the material, which is beneficial for saving raw materials. In addition, during the rotational molding process, there are no waste materials such as runners and gates. Once debugged, there is almost no furnace material returned during the production process, so the utilization rate of the material in this process is extremely high.

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