What are the advantages of rotational molding technology?

What are the advantages of rotational molding technology?

Roto-molding technology has the following advantages:

Low mold cost: For products of the same size, the cost of roto-molding molds is about 1/3 to 1/4 of the cost of blow molding and injection molding molds, which reduces production costs.
Good product edge strength: The thickness of the product edge can exceed 5 mm, which completely solves the problem of thin edges of hollow products and improves the overall strength and durability of the product.
Various inlays can be placed: During the roto-molding process, various inlays, such as metal parts, plastic parts, etc., can be easily placed to meet the functional requirements of the product.
Product shape is complex and thickness is adjustable: Roto-molding can produce products with very complex shapes and a thickness of more than 5 mm, which can meet the design requirements of different products. At the same time, there is no need to adjust the mold, and the wall thickness of the roto-molded product can be freely adjusted to make the product have high strength.
Fully enclosed products can be produced: Roto-molding technology can produce fully enclosed products, such as storage tanks, containers, etc. These products have good sealing properties and can prevent liquid or gas leakage.
Fillable foaming material for insulation: Roto-molded products can be filled with foaming materials, such as polyurethane, to achieve insulation function, and are widely used in insulation boxes, refrigeration equipment and other fields.
Save raw materials: The wall thickness of roto-molded products is relatively uniform and slightly thicker at the chamfer, so the material efficiency can be fully utilized, which is conducive to saving raw materials. In addition, in the roto-molding process, there is no waste such as runners and gates. Once debugged, there is almost no recycled material in the production process, so the process has a very high utilization rate of materials.
Easy to produce multi-layer plastic products: Using the roto-molding process, only reasonably matched materials with different melting temperatures need to be loaded into the mold for roto-molding. The plastic with a lower melting temperature is first heated and melted, adhered to the mold, and formed the outer layer of the product. Then the material with a higher melting temperature is melted on it to form the inner layer of the product. Or first load the outer layer of plastic into the mold, and after the outer layer is roto-molded, add the inner layer material, and then roto-mold to make a multi-layer roto-molded product. No matter which method is used, it can be achieved without complex equipment.
The product is hollow and seamless, with uniform wall thickness: The rotomolded product is hollow and seamless, with uniform wall thickness. The wall thickness can be adjusted to make the product high-strength, improving the quality and performance of the product.
A variety of surface pattern treatments can be provided: A variety of surface pattern treatments can be provided, and products of various colors can be produced. Anti-ultraviolet and anti-aging treatments can be provided, and a variety of stone and wood simulation effects can be made to meet the needs of different customers for product appearance.