Oemetol: High-Performance GTL & Ester Straight Oils
The Oemeta Oemetol Series represents the next generation of straight cutting oils (non-water miscible). Unlike traditional mineral oils derived from crude petroleum, the Oemetol 700 Series utilizes advanced Gas-to-Liquid (GTL)technology. This process synthesizes pure, crystal-clear base oils from natural gas, resulting in fluids that are virtually free of aromatics and heavy metals. Manufactured in Salt Lake City, Utah, Oemetol delivers the extreme lubricity required for Swiss turning, gear hobbing, and honing—without the smoke, mist, and smell of conventional oils.
Why Shops Choose the Oemetol Series
The Oemetol platform is the standard for "Lights-Out" manufacturing where tool life and fire safety are critical.
1. The "No-Smoke" Shop Environment
The Problem: Standard mineral oils contain volatile molecules that burn off easily, creating a haze of blue smoke and oil mist across the shop floor. The Oemetol Solution: GTL base oils have a significantly higher Flash Point and lower evaporation rate than mineral oils of the same viscosity. This means the oil stays liquid on the tool instead of vaporizing into smoke, keeping your shop air breathable and your mist collectors clean.
2. Extreme Pressure (EP) Performance
The Problem: In difficult applications like broaching, deep-hole drilling (gun drilling), or machining titanium, water-based coolants simply cannot provide enough lubrication to prevent the tool from welding to the part. The Oemetol Solution: Oemetol fluids (such as Oemetol 720 EP) are packed with high-performance sulfur and phosphorus additives. These create a sacrificial lubricating layer that withstands massive friction, dramatically extending tool life in hard alloys.
3. Reduced Consumption
The Problem: With standard oils, you lose a significant amount of fluid simply due to evaporation (the "Angel's Share").The Oemetol Solution: Because GTL oils have such low volatility, evaporation losses are cut drastically. Shops switching to Oemetol often report a 20% to 30% reduction in makeup fluid, as the oil stays in the sump rather than vanishing into the ventilation system.
Technical Insights: GTL vs. Mineral Oil
Why the molecular structure matters.
The "Uniform Molecule" Advantage
Crude-based mineral oil is a "soup" of different molecules—some large, some small. The small ones burn up quickly (smoke), while the large ones cause drag. GTL oils are synthesized to have Uniform Molecular Structures.
- Result: You get the low viscosity needed for flushing chips in Swiss lathes, combined with the high flash point usually only found in much thicker oils. It is the "Best of Both Worlds" for safety and performance.
Yellow Metal Compatibility
Not all straight oils are safe for brass or copper.
- Standard Series: High-performance on steel/carbide.
- "Y" Series (e.g., Oemetol 720 Y): Specifically formulated with "inactive sulfur" to be Non-Staining to Yellow Metals, making them ideal for brass connectors and aerospace components.
Tech Tool Support & Availability
When you source Oemeta products through Tech Tool, you gain a national fluid management partner:
- Rapid Deployment: Inventory is stocked in US Distribution Centers (Pails, Drums, and Totes).
- Fluid Lab Access: Need to match an oil to a competitor's spec? Send us the data sheet, and we will cross-reference the viscosity and additive package.
- Compliance Ready: We provide dedicated SDS compliance support (GTL oils are skin-friendly and free of harsh aromatics).
Recommended Equipment
Running straight oil requires specific safety and maintenance protocols.
- Air Quality: A high-efficiency Mist Collector is strongly recommended to capture the small amount of aerosol generated during high-speed cutting.
- Safety: Ensure your machine's Fire Suppression System is active and calibrated, as all straight oils (even high-flash ones) are combustible under extreme conditions.
- Filtration: Use Depth Filtration (5–10 micron) to remove fine metal particles, as straight oils do not "settle" fines as quickly as water-based coolants.
Frequently Asked Questions
Do I mix Oemetol with water?
A: NO. Oemetol is a "Straight Oil." It is used Pure (100%). Do not add water. If you need a water-mixable coolant, look at our Unimet or Novamet series.
What does "705" vs "720" mean?
A: These numbers generally indicate viscosity.
- 705 Series: Very Low viscosity (~4–5 cSt). Ideal for Honing, Grinding, and super-finishing where flushing is key.
- 720 Series: Medium viscosity (~22 cSt). The standard for Swiss Turning, Milling, and General Machining.
Is GTL better for my skin?
A: Yes. GTL oils are free of "Aromatics" and Polycyclic Aromatic Hydrocarbons (PAHs), which are the compounds in old mineral oils that often cause dermatitis and skin irritation. Operators prefer Oemetol because it is odorless and clear.
