Zeller+Gmelin Expands Metalworking Fluid Range with Zubora 35 Series

Enhances machining efficiency Zeller+Gmelin expands its cooling fluid portfolio

2025-07-29 Source: Zeller + Gmelin 1 min Reading Time

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Zeller+Gmelin expands its metalworking fluid range with the launch of the Zubora 35 series. The two new high-performance cooling fluids are engineered for demanding machining applications and deliver a strong balance of technical performance, process stability and cost-efficiency

The cooling fluids of the new Zubora 35 series ensure reliable machining results - even with difficult materials and water hardness.(Source: Zeller + Gmelin) — The cooling fluids of the new Zubora 35 series ensure reliable machining results - even with difficult materials and water hardness.
(Source: Zeller + Gmelin)

With the new Zubora 35 series, Zeller+Gmelin is launching two high-performance cooling fluids (CSF) specifically developed for demanding machining tasks in contract and series production. The two versions — Zubora 35 H Ultra and Zubora 35 M Ultra — are characterised by a balanced combination of technical performance, process reliability and economic efficiency.

Both cooling fluids cover a wide range of applications — from machining cast iron and high-strength steels to more demanding aluminium alloys such as AL 2024 or AL 7075. The formulations are based on proven EP/AW additives and polar components that ensure reliable lubrication and contribute to increased tool life.

The practical suitability has now also been confirmed by Grob’s current technical customer documentation: Zubora 35 H Ultra is listed there in combination with the slideway oil Divinol T 12 EP ISO 220. Thus makes the cooling fluids suitable for use with Grob machines. Other water-miscible cooling fluids for metal cutting from Zeller+Gmelin are already listed in the machine manufacturer's customer documentation, including the established cooling fluids Zubora 65 H Ultra, Zubora 67 H Ultra, and Zubora 65 M Ultra L.

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