Category: Blog

Extrusion blow molding equipment can be categorized into two types: multi-layer hollow forming and single-layer hollow forming, depending on the blown products, plastic materials, and extruded plastic preforms. Currently, the most commonly used extrusion blow molding machines are multi-layer hollow forming machines and single-layer hollow forming machines. Both types feature continuous and intermittent extrusion methods. They can also be classified based on the number of mold clamping stations into single-station, double-station, and double-station, with single-station and double-station machines being the…

There are many varieties and specifications of extrusion blow molding machines, and each major manufacturer of hollow molding machines, both domestically and internationally, has its naming methods. The naming methods for extrusion blow molding machines are quite diverse, but currently, there are three main categories in common use: The first category is the scientific naming method; The second category is the manufacturer naming method; The third category is the equipment characteristics naming method. (1) Scientific Naming Method The scientific naming…

(1) The Working Principle of Electromagnetic Induction Heating in Blow Molding Machines ① Electromagnetic Heater An electromagnetic heater is a device that converts electrical energy into thermal energy using the principle of electromagnetic induction. The electromagnetic heating controller rectifies 220V, 50/60Hz AC power into DC and transforms that DC into high-frequency, high-voltage electricity with a frequency of 20-40kHz. It also converts 380V, 50/60Hz three-phase AC into DC and then into high-frequency, low-voltage, high-current electricity ranging from 10-30kHz, which is used…

There’s a whole bunch of different types of plastic water tanks out there, each with its own set of features, and let me tell you, designing a good plastic water tank ain’t no walk in the park. (1) General Principles of Plastic Water Tank Design When it comes to designing plastic water tanks, you gotta start with the intended use. Here are some key principles to keep in mind: ① Make the most of the mechanical properties of plastic while…

There are many factors to consider when selecting plastic packaging container materials. Due to the wide variety of plastics available, selecting the right material can be quite a complex task. You can use different materials to package the same product, or the same material to package different products, but the molding processes might vary. For instance, when packaging shampoo, you might opt for PP or PVC materials; PET is great for packaging cooking oil or carbonated drinks; and HDPE can…

With the rapid development of the petrochemical industry, the plastic industry has also seen explosive growth. Plastic packaging containers have replaced traditional materials like metal, glass, ceramics, and wood in many areas, showcasing their remarkable vitality. The innovation of extruded blow molding plastic packaging containers has brought convenience to our production and daily lives, significantly enhancing our quality of life. 1. Characteristics of Extruded Blow Molding Plastic Packaging Containers The advantages of extruded plastic packaging containers are as follows: ①…

Is a used blow molding machine worth buying? It depends on the situation. First off, the price of a used blow molding machine is usually lower. Compared to brand-new equipment, used machines often come at a fraction of the cost, which is a big win for those of us on a budget. But just because it’s cheaper doesn’t mean it’s automatically junk; the key is to find a reputable seller and do a thorough inspection. Next up, we gotta talk…

As a piece of heavy machinery, there are 10 essential hollow molding blow molding machine precautions that customers need to keep in mind. 1. Before starting up, it’s mandatory to undergo formal training from the blow molding machine manufacturer’s trainers. Informal operators are not allowed on the job. Yankang provides 24-hour technical support for customers and regularly holds technical training sessions; feel free to reach out with any questions. 2. Generally, it’s important to minimize the operation of the machine…

Back pressure is an important parameter for controlling the quality of melt and product in the blow molding process. Appropriate back pressure plays an important role in improving the quality of blow-molded products. Formation of back pressure During the melting and plasticizing process of plastic, the melt continuously moves to the front end of the barrel (inside the metering chamber), and more and more, gradually forming a pressure to push the screw backward. To prevent the screw from retreating too…

Extrusion blow molding is one of the main forming methods for producing hollow plastic products with the largest output and good economic efficiency. It is suitable for hollow-forming materials such as polyethylene, polyvinyl chloride, polypropylene, polystyrene, polyester, polyamide, and polycarbonate. It is mainly used to form container products, the minimum volume of the container can be 1mL, and the maximum volume can reach 20000L. Extrusion blow molding products are widely used in food, beverages, cosmetics, medicines, washing products, children’s toys,…