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Michael Undén
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- mu@northerngrafics.dk
Circular knives are versatile cutting tools used across multiple industries. Crafted with precision using quality materials like D2 and HSS M2, they undergo machining and grinding to meet stringent standards. Sometimes, they are heat-treated to achieve specific properties like clean cuts and flexibility.
Implementing circular knives in various industries brings benefits such as increased productivity and fewer errors in the production process. These knives perform tasks like cutting, perforating, and trimming and are suited for different machines due to their customized design.
Circular knives are prevalent in industries like paper, packaging, recycling, and plastic extrusion. They play a vital role in delivering precise cuts and enhancing the efficiency of the production process. With their precise design and quality materials, they are indispensable for manufacturers looking to optimize their cutting processes.
Bottom knives are crucial for the efficient and accurate functioning of shear cutting. They work in conjunction with circular top knives to cut various materials like paper, film, and foil into narrow strips. Bottom knives are precision-ground to achieve the best axial/radial runout and parallelism. This ensures smooth operation, resulting in clean and precise cuts.
Circular Bottom knives are produced with various locking options:
The following steel types are offered for our bottom knives: 2067 2080 2379 3343
Core cutters are used in the converting industry to cut clean, precise cores in materials like cardboard, paper, and plastic. Made from high-quality materials, they ensure clean and precise cuts while being durable and long-lasting. These knives are available with a sharp edge and with a radius angle of 30, 45, or 60 degrees.
Cutting edges are available with a radius of:
Crush cutters are among the most well-known and used circular knives across various industries. These knives deliver clean, precise, and burr-free cuts. Crush knives are available in different steel types, ensuring there’s an option for every need, whether for general use or a more specific application. These knives are available with a sharp edge and with a radius angle of 30, 45, or 60 degrees.
Crush knives are available in the following steel types: 2067 2080 2379
Multi-bottom knives are essential tools for slitter/rewinders, ensuring clean and precise cuts when used in combination with top knives or razor blades. Multi-bottom knives are precision-ground for optimal performance and long life between grindings.
Multi-bottom knives are customized to specific client needs.
Multi-knife blocks are available in the following steel types: 2067 2080 2379
For multi-bottom knives with an OD of 250 mm, we recommend the steel type 1.2379 for the best lifespan and stability.
Circular top knives are a critical component in any slitter section, delivering clean, precise, and burr-free cuts. They work in tandem with bottom knives to ensure optimal results. Top knives are ground with bevel geometry, ensuring the best cutting results.
Different types of bevels are available, including:
The choice of bevel type depends on the specific requirements of the cutting task.
Circular top knives are available in the following steel types: 2067 2080 2379 3343
Perforation knives are crucial for creating precise perforations. All perforation is performed by wire cutting, ensuring high quality and performance.
Customization is available for top knives, crush knives, and core cutting knives to fit the specific number and shape of teeth required for your products. Options for micro-perforation and wave perforation are also available to meet unique needs.
Perforation knives are optimized for efficient and precise perforation of materials such as cardboard, paper, and plastic.
All our knives are manufactured to customer specifications. We offer circular knives to both machine manufacturers (OEMs) and production companies (end users). Our goal is to provide versatile and reliable high-quality circular knives. If you’re interested in learning more about our circular knives, please feel free to contact us. Our team will be happy to answer any questions and provide further information about our circular knives.
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