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What are the advantages of Rotational Molding compared with Traditional Blow Molding and Injection Molding?

Rotational molding process: The rotomolding product is relatively large. The plastic particles are put into the mold to heat, and then the mold is continuously rolled over to make the plastic and the inner wall of the mold form. No need to adjust the mold, the wall thickness of the rotomolded product can be adjusted freely, making the product stronger.


Blow molding process: The blow molding mold is relatively simple, and the product is blown out of shape with air. The field of use is limited. Commonly used disposable cups and household pans are all made with this process.


Injection molding process: It is completed by injection molding machine, and the input cost is relatively high. It is widely used in various fields of auto parts, home appliance shell material packaging boxes, etc.


Compared with the traditional blow molding and injection molding process, the rotational molding process has the following advantages:

1. Cost advantage: In the entire molding process of the rotomolding process, the material is hardly affected by any external force except for the action of natural gravity, so it has the advantages of convenient machining and manufacturing, short cycle and low cost.

2. Quality advantage: During the whole production process, the product of the rotational molding process has no internal stress, and the product quality and structure are more stable and thus more durable.

3. Flexible and changeable advantages: The machine mold of the rotational molding process is convenient to manufacture, and the price is lower than that of the blow molding and injection molding processes, so it is especially suitable for the production of multiple varieties and small batches in the development of new products.

4. Advantages of personalized design: The products in the rotational molding process are easy to change color, and the surface treatment of the products can achieve the effect of pattern, wood, stone and metal, so as to meet the personalized needs of consumers in modern society.

Compared with blow molding products, rotomolding products have stronger impact resistance, less deformation, more durable and excellent corrosion resistance.

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Ningbo Xinghui Rotational Molding Factory