Circular knife
Precision in round cutting
For industry and food processing
Our circular knives stand for the highest cutting precision, long service life, and universal application possibilities. Whether in the food processing, paper, or plastics industries – we offer custom-made circular knives tailored to your application, machine, and production environment.
Circular knife for food
For processing bread, meat, and fish, we offer specially developed stainless steel circular knives. These food-grade knives meet the highest hygiene standards and ensure clean, even cuts. In the bread and baked goods industry, non-stick coated (e.g., Teflon) circular knives are available upon request, reducing sticking and ensuring efficient cutting processes. This coating has also proven its worth in the packaging industry.
Circular knives for industry
Our industrial knives cover a wide range of applications – from paper, plastics, and rubber to technical textiles. We offer circular knives in sizes from 50 mm to 1000 mm in diameter, manufactured from robust materials such as wear-resistant tool steel 1.2379. High concentricity and axial runout accuracy, as well as optional coatings, ensure optimal cutting performance on demanding materials.
Circular knives – custom-made
In addition to our standard range, we also offer custom manufacturing. Upon customer request, we produce circular knives based on drawings, sketches, or specific dimensions. Special materials, coatings, and tooth geometries can be accommodated. Whether custom-made or in series production, we deliver tailor-made solutions tailored to your machine and application.
We are happy to create a drawing in advance for an additional fee to clarify details and obtain approval. The costs will be credited back upon order placement.
Durable & robust
We process particularly wear-resistant steels, such as the proven 1.2379 tool steel, which is characterized by its hardness, edge retention, and versatility. This material is ideal for demanding cutting processes that demand consistent quality and durability. Even with high cutting frequencies or abrasive materials, our circular blades retain their shape and cutting performance – for consistently economical and reliable results in industrial applications.
Contact us – we would be happy to advise you and manufacture the right circular blade for your application!
FAQ – Quick Guide
Why must the diameter, bore and mounting holes of a circular knife match the machine?
The dimensions of a circular knife must be precisely matched to the respective machine mounting system. In addition to the outer diameter, the bore, mounting holes and other fastening features are essential for the correct fit of the knife. Deviations can affect installation, blade running accuracy and ultimately the cutting result. For custom-made knives, these dimensions are therefore produced to match the existing machine.
Why are radial runout and axial runout so important for circular knives?
Circular knives rotate at high speed and must run as accurately as possible in their intended position. Deviations in radial or axial runout can affect the cutting gap, cause instability during cutting and lead to uneven cut edges or increased wear. Precise manufacturing is therefore particularly important in applications where tight tolerances and consistent cutting results are required.
When is a coating useful for circular knives?
A coating can be useful when the material being cut tends to stick, when friction needs to be reduced or when additional wear protection is required. In bread and bakery applications, for example, non-stick coatings can help reduce product adhesion to the knife. The most suitable coating depends on the material, the process and the specific requirements of the application.
When is a toothed circular knife used and when is a smooth-edged circular knife more suitable?
This mainly depends on the material being cut and the cutting process. Toothed designs can make it easier to penetrate tough, fibrous or difficult-to-cut materials. A continuously sharpened cutting edge is more suitable for applications where a clean and uniform cut edge is the main priority. Tooth profile and cutting geometry should therefore always be matched to the specific application.
Which factors influence the service life and cutting quality of a circular knife?
In addition to the blade material and cutting geometry, correct machine settings and the condition of the equipment also play an important role. Radial runout, axial runout, cutting speed, contamination, deposits and correct knife adjustment can all influence cutting quality and wear. A circular knife can only perform reliably when the knife, machine and cutting process are properly matched.
Which material is suitable for a circular knife?
The appropriate material depends on the application and the requirements of the cutting process. Corrosion-resistant steels are commonly used in food processing, while wear-resistant tool steels such as 1.2379 may be suitable for industrial applications. The material, hardness and cutting geometry should always be matched to the material being cut, the operating conditions and the specific application.
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Circular knife
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