Cut tooling costs with Oemeta’s sustainable new cutting fluid

Oemeta says manufacturers seeking exceptional cutting performance and improved tool life now have a proven solution with Estramet S95. According to the company, this translucent, water-miscible metalworking fluid based on synthetic ester technology can transform how companies approach demanding operations on difficult materials.

A true ‘all-rounder’ with high performance on everything from turning and milling to drilling, threading, honing and grinding, Estramet S95 is a sustainable coolant delivering superior lubrication characteristics. Completely free from mineral oil, boron, formaldehyde, fungicide and active sulphur, Estramet S95 puts employee and environmental welfare first.

Suitable for demanding machining operations on high-alloy steels, stainless steels and aluminium alloys such as titanium and Inconel, Estramet S95 delivers sustainability credentials without compromising on performance or cost-effectiveness, reports Oemeta. Traditional mineral oil-free coolants, particularly polymer-based alternatives, often struggle to match the lubricity and tool life performance of conventional products. However, Estramet S95  is said to break this boundary its synthetic ester formulation.

With carbide prices reaching unprecedented levels and cutting tool costs escalating, Estramet S95 is a simple solution to halt the impact of rising tooling costs. With carbide tooling costs climbing by more than 25%, the tool wear reduction characteristics of Estramet S95 are proving to reduce tool wear by more than 25%.

At the heart of Estramet S95’s performance is its high-performance ester oil base, making it better for companies, workers, the environment and the shop floor. Unlike standard ester coolants, Oemeta says the formulation provides superior lubricity even at lower oil concentrations. For manufacturers, there are a multitude of operational benefits. The low oil content reduces drag-out and carry-out on components, translating to lower consumption rates and extended sump life. Despite the reduced oil loading, tapping torque analysis consistently demonstrates Estramet S95’s lubrication performance exceeds alternatives with much higher oil content.

The translucent, semi-transparent appearance provides immediate visual feedback on sump condition and contamination levels, making maintenance monitoring straightforward. This clarity, combined with stability, contributes to a service life that exceeds competing products, reports Oemeta. The formulation maintains its performance characteristics with high foaming resistance.

Estramet S95 is said to excel in demanding operations, including deep drilling and reaming, where consistent lubrication and effective chip evacuation are critical to component quality and tool life. Its pH value of 9.3 at 5% concentration provides corrosion protection, with corrosion test results meeting the stringent K0 4.0 classification under DIN 51 360/2.

One of the most valued characteristics is its washing power. Components emerge from machine tools noticeably cleaner than with conventional coolants, frequently eliminating the need for subsequent washing cycles. This attribute removes an entire process step from the production sequence, reducing both cycle time and environmental impact. Machine sumps and work areas remain cleaner, reducing maintenance requirements and improving the working environment.

For manufacturers operating lights-out machining, Estramet S95 combines superior lubricity and low consumption characteristics, which means machines can run extended periods without interruption. Tool wear alarms and low-volume tank alerts are two primary causes of unattended operation interruption – Estramet S95 minimises the frequency of both, making it suitable for manufacturers implementing automated production.

Tramp oil rejection characteristics represent another operational benefit. The synthetic ester emulsifiers effectively separate hydraulic oils that inevitably enter coolant systems. This capability prevents smoking and burning issues that plague facilities running conventional coolants with poor tramp oil rejection.

Estramet S95 is supplied as a concentrate with a density of 984 kg/m³ and a kinematic viscosity of 51 mm²/s at 40°C. The recommended concentration range of 5 to 15% provides flexibility to optimise performance for specific applications, with higher concentrations available for particularly demanding operations. The product’s refractive index of 1.437 enables straightforward concentration monitoring using standard refractometers.

The product is particularly suited to manufacturers seeking to balance sustainable machining with improved workplace conditions and machining performance, with Oemeta presenting a product that targets productivity gains rather than competing on price per litre. For manufacturers processing aerospace, automotive or medical components where tolerances must be maintained over long cycles, Estramet S95 delivers benefits in both productivity and component quality. With supply chain issues from the Middle East conflict hitting cutting fluids reliant on mineral oils, the ester-based Estramet 95 is unimpacted, delivering supply chain security and continuity for manufacturers.