Zubora 77 S Ultra

Due to selected highly effective EP additives Zubora 77 S Ultra is suitable for cutting processes of most difficult demand. The product can be used for machining high strength steel, stainless steel, cast iron and aluminium and also for aluminium alloys as AL 2024 and 7075. Furthermore, it is well suited for difficult cutting operations with small diameter (5 mm). Due to a special formulation Zubora 77 S Ultra is particularly long-term stable.
The EP-additives effect a longer tool life and enable the working with high cutting speeds. Thus, a high process security can be guaranteed even for very difficult working operations. Due to the good rinsing capability a high machine cleanliness is achieved. This advantage guarantees high flexibility for different cutting processes mainly in central systems and working centres.
The necessary working concentration depends on the difficulty of the operation and the material.
Recommended hardness of the preparation water: 4 to 8° dH (70 – 140 ppm CaCO_3).