Using the correct prelube oil increases tool service life

Tech Focus Using the correct prelube oil increases tool service life

10.07.2017Author / Editor: Katrin Hommel / Rosemarie Stahl

Lubricants are essential for optimising tool life and for raising productivity. In an analysis of Zeller + Gmelin's second generation prelube oil Multidraw PL 61 SE in comparison with its previous product, the prelube oil PL 61, significant improvements have been verified.

Related Vendors

Zeller + Gmelin GmbH & Co. KG

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Smooth process flow during forming by using Multidraw PL 61 SE: The figure depicts the inside door panel for a Fabia II model from a test series at Skoda.
(Source: Zeller + Gmelin)

Because of their enormous lightweight construction potential, and the general interest in saving material, the metal forming industry increasingly relies on high-strength and ultra high-strength steel grades. To help customers meet increased demands placed on press shops, the lubricant experts from Zeller + Gmelin have developed "Multidraw PL 61 SE", a 2nd generation prelube oil.

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Zeller + Gmelin - the lubricant experts

Zeller+Gmelin GmbH & Co. KG, founded in 1866, employs 900 staff globally, and almost half of them at its headquarters in Eislingen. With its 16 subsidiaries, the medium-sized company operates globally. The product portfolio is split into corporate sectors lubricants, industrial chemicals and printing inks. The high-quality products have acquired a leading position on the international market. Zeller+Gmelin offers both individual and holistic solutions from a single source ranging from research and development to production. The size of the R&D share is shown, not least, by the fact that around 20% of employees in Esslingen are involved in this sector to continually further develop and optimise innovative products to meet market and customer requirements.

The increasing use of high-strength and ultra high-strength steel grades in automotive body press shops presents new challenges. Its VDA Working Group, responsible for forming lubricants, demanded an improved prelube oil. In essence, prelube oils are anticorrosion oils with additional additives, which can act simultaneously as forming oils in the press shop. In this market, Zeller + Gmelin's Multidraw PL 61 has been a successful prelube solution for many years.

Requirements for a second prelube oil generation included, on the one hand, further good compatibility with downstream processes of the painted body and, on the other hand, the improved tribological properties, in particular, on hot-dip galvanized surfaces. We developed the new Multidraw PL 61 SE to meet precisely these requirements. Its application to the rolling mill allows press shops to operate without additional lubrication, which must be eventually removed through a cleaning process before painting.

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