2026-04-10Views：
The medium pressure air compressor produced by Grencklin Group is widely used in the PET bottle blowing industry. The compressed gas of the water-lubricated air compressor does not contain oil, and the bottle blowing is more in line with the requirements of food safety production.
PET is the most widely used beverage packaging material today. PET bottles originated in the early 1980 s. Because of its light weight, easy forming, low price, and easy mass production, it has developed rapidly with an unstoppable momentum since its inception. In just 20 years or so, it has developed into the world's most important form of beverage packaging. PET is not only widely used in the packaging of medicines, carbonated beverages, bottled water, condiments, cosmetics, liquor, dried fruit candies, edible oils, pesticides and detergents, but also specially processed special filling bottles can also be used in the packaging of juice and tea drinks.
PET material is how to make a plastic bottle?
It is roughly divided into two steps: injection molding and blow molding. First, the PET particles are melted at high temperature to make the preform. The preform is like a test tube with a bottle mouth. There is a protruding ring on the bottle mouth, which is called a supporting ring. This part is very important in the blow molding process. This supporting ring can be used to hold the preform. After blowing out the bottle, the filling machine also needs to fix the bottle by the supporting ring for filling.
The process of blow molding can be imagined as blowing a balloon. The heated preform is inserted into the mold, a metal rod is inserted into the preform, and high-pressure air is injected into the bottle instantly. The preform is blown up until the edge of the mold is stuck and a specified shape is formed. After demoulding, a plastic bottle is completed.
To blow up the test tube-shaped PET bottle blank instantly, high-pressure air is required to complete it. Therefore, the air compressor matched with it must be a medium and high-pressure series, and the recommended pressure is 3-4Mpa. If PET bottles are used for filling food, medicine, and beverages, there are higher requirements for air cleanliness-sterile, dust-free, and oil-free.
granklin water-lubricated air compressor uses pure water as the medium for lubricating, sealing and cooling the main engine of the air compressor head, which can ensure that the produced air does not contain a drop of oil. The air will pass through the air filter element before entering the compressor chamber to remove most of the dust. Higher sterility and dust-free requirements can also be completed by supporting post-processing equipment. The pressure of GW series medium pressure oil-free screw air compressor series can reach up to 4Mpa, and the displacement range covers 2.8m & sup3;/min-22m & sup3;/min, meeting the needs of most bottle blowing industries.
The safety of food and drugs is the most important point for every production enterprise. Whether it is the production process of food and drugs, or the filling and packaging process, every careful equipment selection is responsible for the customer. Because we are not only producers, but also users. Granklin will always adhere to the initial heart, do not forget the mission, and advocate more enterprises to use truly oil-free air compression equipment!
Enterprises that need pet bottle blowing to purchase air compressors may wish to choose granklin group to make an inquiry. we will give you a satisfactory quotation and high-quality water lubricated air compressors.
The water-lubricated compressor produced by Shanghai Granklin Group generally uses air as the compression medium. This is because it is compressible, clear and transparent, and it is convenient to transport (non-condensing), harmless, safe, and inexhaustible. An inert gas is a gas that has no chemical effect on the environment, and a standard compressor can compress an inert gas as well.
View detailsWhere there is a screw air compressor in Guangzhou, where there is a screw compressor in Guangzhou to buy in the air, because of the factors of airflow and strong wind, where there is a screw air compressor in Guangzhou, the air always contains different degrees of dust, lime sand and other impurities.
shanghai granklin group engaged in water lubrication oil-free screw air compressor production, research and development, sales. Permanent magnet variable frequency air compressor manufacturers, water lubricated air compressor manufacturers, variable frequency air compressor manufacturers, factory price direct national delivery, there are cases.
View detailsCompressor dynamic equipment does not belong to special equipment, but as long as the working pressure of the gas storage tank and the connected pipeline is greater than or equal to 0.1Mpa, the volume and pipe diameter are greater than or equal to 25mm, it belongs to special equipment. In the air compressor system, it can be simply considered as "the design pressure is less than or equal to 1.6MPa, the volume is less than or equal to 1000L, the product of working pressure and container is greater than or equal to 2.5MPa.L, and less than or equal to 1000MPa.L".
Air compressors are generally classified into the following categories: 1. According to the gas transmission volume, to put it bluntly, the gas transmission volume refers to the volume of the gas discharged from each minute of the air compressor during operation, calculated to be sucked in. The small and medium-sized exhaust volume is less than 10 cubic meters/minute, and the small and medium-sized exhaust volume is 10~100 cubic meters
Shenzhen Air Compressor Equipment Factory and Shenzhen Screw Air Compressor Factory have a pressure gauge in front of the filter element at the time of ordinary screw air pressure. Shenzhen Air Compressor Equipment Factory stops changing the oil core when the pressure difference between the pressure gauge in front of the filter element and the air supply pressure gauge reaches 0.08MPa. When the oil core is damaged, it will be found that the oil consumption of the air compressor is very serious, and there will be a small amount of oil in the gas storage tank and pipeline in Shenzhen Air Compressor Equipment Factory. In severe cases, discharge the air compressor oil at the discharge time of the air tank drain valve.
Need to purchase a water-lubricated air compressor, provided that the oil-free compressor brand which is better? Choose the water-lubricated oil-free air compressor produced by Shanghai Granklin Group.
Shanghai Granklin Group is engaged in the production of "oil-free air compressor", integrating R & D, production, sales and after-sales. As a member of domestic air compressors, the brand of "Granklin air compressor" has gradually occupied a place in the domestic "oil-free air compressor" market after years of operation and development.
In the field of air compressor, there are not many manufacturers that can use real frequency conversion motors. Shanghai Granklin Group produces water-lubricated variable frequency air compressors. Through the use of permanent magnet motors and variable frequency controllers, it has achieved the effect of energy saving and emission reduction. General frequency conversion means can suppress frequent loading and unloading of equipment, and can also save a lot of power, improve reliability and reduce noise. If the air compressor uses frequency conversion, it can also stabilize the system pressure.
Oil-free, oil-free air water-lubricated screw air compressors are becoming more and more popular in the market, so what are the options for manufacturers of this series of screw air compressors? Shanghai Granklin Group is a professional manufacturer of "screw air compressors", as a brand enterprise. Granklin production of water-lubricated screw air compressor, oil-free air compressor market sales are rising year by year, more and more popular with users.
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