PET bottle blowing machines are divided into two types according to the preform heating mode: rotary and linear.
The rotary blow molding machine has higher capacity, high speed, complex design, and higher price. The typical rotary blow molding machine is the French SIDEL SBO series, and the linear blow molding machine is a typical representative of Japan’s ASB and Aoki.
Generally speaking, this type of machine design is relatively simple, but production will form a bottleneck and it is difficult to exceed 6,000 bottles per hour. Temperature control is directly related to plasticization uniformity and is the key to the success or failure of blow molding products.
The design and precision of the mold and heat flow also determine the quality of the product.
The basic equipment currently used in China for the production of PET blow molding injection is imported products in the world, especially in high-speed and mass production, domestic equipment cannot compete.
It is worth mentioning that there are few manufacturers of blow molding machines capable of producing large-capacity PET hot filling bottles, and it seems that only ASB has repeatedly blown the bottle to obtain satisfactory results. With the rise of aseptic cold filling technology, a new round of battle and blow molding machine market will be opened. Now the one-step blow molding machine in the west has a foothold in Beijing Huiyuan Juice Factory, but this does not mean that the two-step blow molding machine has no chance.
The material of the extrusion blow hollow container production equipment is more flexible, it can produce PE, PS, PVC, PC containers, a variety of materials, such as product application areas are also more extensive, and three-quarters of the blow molding products on the market are made by extrusion blow molding. The crowded blowing method can produce ophthalmic bottles of several milliliters, and can also handle more than 1000L pallets or tons of barrels.
At present, Taizhou Fupusi Machinery Co.,Ltd. China’s crowded blowing hollow container production equipment can fully meet the needs, take Yaqi as an example, the company’s crowded blowing equipment has formed a series, which can produce various blow-molded containers under 200L, and develop mold label extrusion blow molding machines, the products are widely used in cosmetics and lubricants, research, etc.
At present, China’s development of extrusion blow equipment is not perfect enough, especially some equipment with various composite functions cannot be produced, such as widely used in liquid medicine packaging bottles, filling and sealing three equipment.