Industrial knives for the packaging industry for cutting in longitudinal and transverse direction, e.g. of poly-tube-bags or foils in various material combinations. No matter if horizontal or vertical form-, fill- and seal- (wrapping) packaging machines, CASTER GmbH offers you the perfect solution.




Toothed / serrated long knives cut poly-tube-bags, foils, paper and composite in various material combinations in longitudinal and transverse direction. The design of the toothing can be individually worked out with you and adapted on your needs. Currently, more than 20 different types of toothing have proven themselves in operation at our customers. Due to the increasing individual wishes in packaging design, more are added constantly.
With our manufacturing capabilities we are able to produce simple straight contours up to complex shapes of toothed long knives.
Even unusual cutting edges (custom-shaped cuts) can be produced.
Our blades are made from the following materials:
Spring strip steel (hardened and unhardened up to 55 HRC)
Alloyed chrome steels (hardened and unhardened up to 65 HRC)
Our serrated machine blades can be manufactured from the desired material depending on the specific application. The selection of materials ranges from hardened strip material to corrosion-resistant, hardenable tool steels and high-speed steels. By carefully selecting the appropriate materials, we ensure your blade achieves the desired service life.
In addition to these high-quality materials, we offer a wide variety of tooth profiles, many of which are highly complex and intricate. These complex tooth profiles can be manufactured not only in straight lines but also in a roof-shaped configuration. Because we use specialized machines designed for tooth profiling, we can produce many different variants of blades.
The design of the tooth profile can be individually coordinated or developed with us upon request. Over 20 different types of toothing have proven themselves in use with our customers. Well-known manufacturers of packaging machines use our toothed machine knives or knife blades.
Increasingly customized packaging design requirements demand flexibility in planning and manufacturing. Our manufacturing capabilities are tailored to a wide variety of requirements. We produce serrated industrial blades ranging from simple straight contours to complex circumferential shapes—from single pieces to large-scale production runs.
Additional technical specifications for serrated blades:
Length: Up to 1,850 mm
Width: Max. 130 mm
Thickness: Max. 4 mm
Tooth pitch: 20 mm
Coating (Teflon, TiN, TiCN, etc.)
Custom labeling (logo, production codes, drawing number)
Cut-resistant packaging upon request




The straight long knives are characterized by two different types, one with a one-sided bevel and the other with a double-sided bevel. The chamfer angle is decisive for the cutting result in the packaging machine and varies depending on the application. In our machine park we produce single-sided or double-sided chamfers at any desired angle. Therefore you achieve an optimal cutting result, no matter whether you want to cut foils, poly-tube-bags, aluminium or other materials. There are almost no limits to the contour of the straight long machine knives. From sickle-shaped to oblique chamfers up to simple straight chamfers you will find all kinds of long knives at CASTER.
Another factor that is crucial to the cutting performance of an untoothed industrial blade is the chosen bevel angle. This varies depending on the specific application in the packaging machine. Using our machinery, we produce single-sided and double-sided bevels at any desired angle. This allows you to achieve optimal cutting results, whether you’re cutting film, tubular pouches, aluminum, or other materials.
There are virtually no limits to the contours of non-toothed long blades. From crescent-shaped and angled bevels to simple straight bevels, you’ll find every type of long blade in our product range.
Through the interplay of bevel geometry and bevel angle, we achieve optimal sharpness while maximizing the service life of your non-toothed machine blade.
Our blades are made from the following materials:
Spring strip steel (hardened and unhardened up to 55 HRC)
Alloyed chrome steels (hardened and unhardened up to 65 HRC)
Additional technical specifications for toothed blades:
Length: Up to 3,200 mm
Width: Up to 200 mm
Thickness: Up to 15 mm
Coating (Teflon, TiN, TiCN, etc.)
Custom labeling (logo, production codes, drawing number)
Cut-resistant packaging upon request
CASTER GmbH
Birkerfeld 37
83627 Warngau
Telefon: +49 (0) 80 24 / 9 97 00
Fax: +49 (0) 80 24 / 9 97 09
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