What are the Slitting Methods for Aluminum Strips?

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Aluminum strips, which are aluminum coils or sheets rolled by casting and cold rolling machines with a thickness of 0.2-4mm, are widely used in the power, construction, and packaging industries. During the production process, aluminum strips need to be slit to meet various specifications and sizes according to different usage requirements. The primary slitting methods for aluminum strips are as follows:


Cross-cutting is a common slitting method primarily used to cut wide aluminum coils into strips of specific lengths. This method is suitable for producing aluminum strips with specific lengths and widths. The cross-cutting machine achieves precise cutting by adjusting the spacing and speed of the blades. This method is typically used to produce standard-sized aluminum strips for use in construction decoration and packaging materials.

Longitudinal Slitting

Longitudinal slitting involves cutting wide aluminum coils along the length to produce multiple narrow aluminum strips. This method is suitable for producing strips of various widths to meet specific production needs. A longitudinal slitting machine uses a combination of multiple blades to cut several strips simultaneously, thereby improving production efficiency. The slit aluminum strips are widely used in power, cable, and automotive manufacturing industries.

Precision Slitting

Precision slitting is a high-precision slitting method used for aluminum strips that require very strict dimensions. This method requires the use of high-precision slitting equipment and cutting tools to ensure cutting accuracy and quality. Precision slitting is commonly used in industries such as electronics and aerospace, where precise dimensions are critical.

Laser Slitting

Laser slitting uses a high-energy laser beam to cut, offering high precision, non-contact cutting, and smooth edges. This method is suitable for complex shapes and high-demand aluminum strip products. Due to its high precision and minimal deformation, laser slitting is widely used in high-end manufacturing industries.

Waterjet Slitting

Waterjet slitting uses a high-pressure water stream to cut, offering advantages such as no heat-affected zones and smooth cutting edges. This method is suitable for cutting heat-sensitive materials. As waterjet cutting does not produce high temperatures, it is particularly suitable for temperature-sensitive aluminum strip materials.

CNC Slitting

CNC (Computer Numerical Control) slitting uses CNC technology to automate the slitting process. By controlling the cutting process through computer programs, CNC slitting achieves high precision and efficiency. This method is suitable for mass production and complex-shaped aluminum strip products. CNC slitting is highly efficient, precise, and repeatable, making it widely used in automotive manufacturing and electronic products.


There are various slitting methods for aluminum strips. Depending on the production requirements and application fields, different slitting methods can be chosen to achieve optimal cutting results. From cross-cutting and longitudinal slitting to precision slitting, laser slitting, waterjet slitting, and CNC slitting, each method has its unique advantages and application scenarios. Choosing the appropriate slitting method can not only improve production efficiency but also ensure the quality and performance of aluminum strip products, meeting the demands of various industries.

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