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The splitting band knife (or only band knife) is a kind of knife used in several fields including: tannery, rubber, foam, cork, shoe and leather goods, paper and other sectors.
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Technical characteristics
A splitting band knife can be produced in different sizes (length x width x thickness) according to the splitting machine on which it has to be fitted. Different technical characteristics define the quality of the product (blade)
The blade can be welded and bevelled, toothed not rectified, rectified on both edge and surfaces, with pre-sharpening made by tools or grinding stones.
A splitting band knife can be produced in several dimensions, usually with a length from mm 1000 to 15000, a width between mm 10 and 110, a thickness from mm 0,40 to 1,50.
Tannery sector
In the tannery sector the splitting band knife allows to divide/split leather and textile in its thickness. The final products of this operation are Split and Grain (internal and external parts) of the leather.
Blades can be used to split every kind of material which has to be split in the thickness:
In the tannery sector, splitting band knives can be used in following working: wet blue, lime, dry, wet white and other tannings.
The blades which are mostly used in this sector are rectified on both edge and surfaces in order to guarantee the best splitting, that means a constance in the thickness of the leather that is produced/split (rectification of surfaces), and also to guarantee the maximum linearity during the splitting process ( back edge); the blade must run as stable as possible without oscillations at all, which could create defects on the leather. Moreover, blades are used to be provided pre-bevelled in order to save time to start the blade running up once it is fitted on the splitting machine.
Rubber, cork and foam sectors
In the fields of rubber and cork, splitting band knives can be used on every kind of material that needs to be split in the thickness such as:
In this sector blades can be used according to their application, to the splitting machine, to the material and to the cut/split precision required by the final product.
Shoes and leather goods sectors
In the production linked to shoes and leather goods, the splitting band knives allow to divide/split and equalize or “reduce” the leather in the thickness in order to improve the quality of the finished product.
The final product of this working, equalization or “reduction” is a leather ready to become a shoe or leather goods (for example bags, wallets, belts, etc..) The hides used in this sectors are always finished leathers and in dry.
In this field, splitting band knives can be used on every kind of material that needs to be split in the thickness such as:
The blades which are mostly used in this sector are rectified on both edge and surfaces in order to guarantee the best splitting, that means a constance in the thickness of the leather that is produced/split (rectification of surfaces), and also to guarantee the maximum linearity during the splitting process ( back edge); the blade must run as stable as possible without oscillations at all, which could create defects on the leather. Moreover, blades are used to be provided pre-bevelled in order to save time to start the blade running up once it is fitted on the splitting machine.
Paper sector
The splitting band knife can be used also in paper sector and allows to divide/to split the material in the thickness, for example paper reels (from toilet paper to the reels for industrial use, paper towel rolls for domestic use, etc..)
In this production, the final product obtained by the splitting is:
In this sector blades can be used according to their application, to the splitting machine, to the material and to the cut/split precision required by the final product