According to Zeller + Gmelin, the new water-miscible Zubora cooling lubricants make a convincing contribution to economical and sustainable production for a wide range of machining tasks. Products from this new series can be used even for the most demanding machining operations.

For example, Zubora 57 H Plus is also ideally suited for grinding as a lubricant for medium-duty machining operations. The Extra and Ultra products are even more powerful.

Due to a high proportion of polar additives, Zubora 57 H Extra guarantees an outstanding reliability even for difficult machining tasks. With additional EP/AW additives, Zubora 57 H Ultra (for hard water) or Zubora 57 S Ultra (for soft water) ensures maximum process reliability even for the most difficult machining tasks. In addition, the semi-synthetic lubricants with a mineral oil content of 30 percent offer excellent corrosion protection.

As studies from the development of lubricants at Zeller + Gmelin show, the products have a good long-term stability. Various 5 and 10 percent emulsions were tested, made up with water at 40°dH. The samples were then subjected to an aging test. The samples were stored over a period of four weeks at room temperature or at 40°C. Even in the “endurance test” at 40°C, the samples show no optical changes after four weeks, which has shown a good long-term stability. This significantly extends the maintenance intervals, which leads to long-term cost savings for the equipment.