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The Basics of a Plastic Bag Making Machine
A plastic bag making machine is a machine used for producing plastic bags. The plastic film used for making bags is available in two basic forms: folded longitudinally and molded in tubular form. The cutting/sealing device in a plastic bag making machine usually involves two moving parts: an upper section and a lower section. The upper section seals the ends of the plastic film while the lower section cuts the plastic film.
The cutting/sealing area of a plastic bag making machine has a trapezoidal cross section. This piece of equipment is supported by a support member and sits on the heating bar. A heated knife cuts through the film roll to seal the sides of the plastic bag. The heat from the knife also helps in adding special characters to the plastic bag, such as logos and designs.
Once the material is ready, it is passed to the extruder. The extruder heats the polyethylene plastic pellets to a temperature of 500 degrees Fahrenheit. The plastic is then pushed through a die which determines the thickness of the plastic bag. Outside air then pushes the plastic film into a bubble. Once it has cooled, it is cut into the desired size and shape.
Several types of plastic bag making machines are available, including zip lock and carry bag machines. The S-DAI brand, one of the world's leading plastic bag machine manufacturers, offers all types of machines for making polythene bags. Its leading technology keeps it at the forefront of the plastic bag making machine industry.
The cutting/sealing area of a plastic bag making machine has a trapezoidal cross section. This piece of equipment is supported by a support member and sits on the heating bar. A heated knife cuts through the film roll to seal the sides of the plastic bag. The heat from the knife also helps in adding special characters to the plastic bag, such as logos and designs.
Once the material is ready, it is passed to the extruder. The extruder heats the polyethylene plastic pellets to a temperature of 500 degrees Fahrenheit. The plastic is then pushed through a die which determines the thickness of the plastic bag. Outside air then pushes the plastic film into a bubble. Once it has cooled, it is cut into the desired size and shape.
Several types of plastic bag making machines are available, including zip lock and carry bag machines. The S-DAI brand, one of the world's leading plastic bag machine manufacturers, offers all types of machines for making polythene bags. Its leading technology keeps it at the forefront of the plastic bag making machine industry.
