Industries:
This is the ideal tool for the many applications and challenges faced in plant or container construction, in foundries and fettling shops, boiler and tank construction, structural steel engineering and pipeline construction.

Machine suitability:
The ST21 cutting disc can be used with stationary machines.

Material suitability:
The ST21 is specially designed for use on steel (carbon steel – also termed structural steel, St37, S235JR and 1.0037) and cast steels (ductile or grey cast iron, etc.).

Structure and production:
The cutting disc contains high-quality corundum (aluminium oxide) and 2 full-coverage glass cloth layers. The minimum side load for the cutting disc as defined by EN 12413 and oSa is 40 N (50 N from a diameter of 150 mm). The expiry date (three years) is embossed in the disc hole ring. Consistently high quality is ensured by sophisticated in-process controls applied during manufacturing. To ensure a maximum level of safety, every thousandth disc is tested destructively. This disc features a straight shape (shape 41). Cutting discs with a straight shape enable deeper insertion depths and therefore a greater number of cuts.

Applications:
During use, the ST21 offers a highly aggressive cut, as well as a long lifetime, a low level of sparking and smooth, vibration-free operation. This cutting disc helps to make work especially cost-effective. This high-quality RHODIUS tool is especially suited to cutting structural and tool steel, spring steels and high-alloy steel, as well as high-strength sheet metal, supports and sections.

Dimensions:
The stationary cutting disc is available with a disc width of 3.0 mm to 4.0 mm, in diameters from 300 mm to 400 mm.