High Density Polyethylene Plastic Bucket Mold

rotational molding is ideal for creating large, hollow parts with complex shapes, such as tanks, containers, and playground equipment. It is a cost-effective and efficient manufacturing process that can produce high-quality parts with consistent wall thickness and strength. Zhejiang Ceeto Mold Co., Ltd. is professtional to make high quality Rotational molds refers to many different kinds of tanks and containers.

Why is there a thread on the top? 

For the top of the barrel, we use a threaded connection. The lid thread will be tightly combined with the screw rotation at the barrel mouth, which can effectively prevent liquid and other particles from overflowing. Better retention of raw materials.

In the production of chemical plastic drums, polyethylene and polypropylene and HDPE are the most common raw materials. Like most plastic parts and components, plastic drums are produced using injection, blow molding, or rotary molding, and other methods are variations of these common methods.

Mold processing includes milling machine processing, wire cutting, electric discharge, polishing and other processes. The first is the machining process of the lathe and the milling machine, and the basic parts of the mold are milling to achieve the size of the design requirements.

Then, wire cutting is carried out to cut the outline of the mold. The next step is EDM, which processes small parts of the mold by means of discharge corrosion, and finally polishes to make the surface of the mold smooth and smooth.

After plastic mold processing is completed,, various components are assembled according to mold design requirements, and then the mold is going to be fully tested. The mold test mainly includes the opening and closing action of the mold, the adjustment of the ejector mechanism,  inspection of the cooling system,  inspection of the hot runner system of the hot runner mold, and so on

After the completion of the mold assembly and debugging, the mold injection molding began. First of all, the plastic particles are added to the bucket of the injection molding machine, and then through heating and the push of the screw, the plastic is melted and injected into the mold cavity, in the mold, the plastic gradually cools and solidifies, and finally forms the shape of the required product.