Zeller+Gmelin had already announced last year that it would systematically remove water-miscible metalworking fluids containing boric acid from its product range. Now, with the Zubora 77 series, the next healthy and environmentally friendly high-performance lubricants for metal cutting will follow. According to the lubricant manufacturer, water-miscible metalworking fluids without boric acid are in no way a contradiction to maximum cutting performance with a long service life.
What do cooling lubricants and occupational safety have to do with each other? Quite simply: when employees come into contact with it, it should not cause any damage to health, such as skin irritation. With a growing portfolio of boric acid-free alternatives, lubricant expert Zeller+Gmelin is once again underlining its duty as a manufacturer in terms of health protection and sustainability. The development laboratory in Eislingen is constantly working on continuously increasing the proportion of sustainable, resource-saving and, above all, health and environmentally friendly lubricants. The new boron-free, semi-synthetic, water-miscible high-performance cooling lubricants in the Zubora 77 series also make an important contribution to health and safety in metal cutting.
Skin-friendly and process-safe
The formulation of the new Zubora products not only dispenses with boron, formaldehyde releasers and monoethanolamine (MEA), but also with ingredients that, according to current knowledge, have an increased sensitizing potential, such as abietic acid and rosin. Skin compatibility" was therefore a key criterion during development. The MWFs weredeliberatelyformulated with special additives so that they easily meet the growing requirements in the area of occupational health and safety. The resulting good skin compatibility has been proven by dermatological tests.
An innovative formulation makes the coolants particularly stable over the long term and measurably extends tool life. In addition, highly effective additives make the new lubricants reliable even in the most difficult machining processes - even with small component geometries and diameters and high step speeds. And the good flushing properties of the Zubora lubricants also support chip removal and thus ensure greater machine cleanliness and increased process reliability.
Image 1: Lubricant development/laboratory (Image: Zeller+Gmelin)
Without boron from the laboratory: the Zeller+Gmelin development laboratory in Eislingen has always
attached great importance to the development of skin-friendly and environmentally friendly cooling lubricants such as Zubora 77 H
Ultra and Zubora 77 S Ultra for sustainable machining.
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Image 2: Zubora 77 series
Zubora 77 H Ultra and Zubora 77 S Ultra: Two high-performance cooling lubricants for machining
machining of high-strength and stainless steel, cast iron and aluminum as well as their
alloys.
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