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DEPA.620D Precision Cutting Oil - Heavy-Duty Mineral Oil from China Suppliers and Factory for Superior Machining Performance

DEPA.620D is a premium heavy-duty mineral cutting oil formulated from highly refined base oils and superior EP additives, including active sulfur and fatty oils. This cutting oil significantly enhances tool life and surface finish by effectively preventing localized welding between chips and tools. With its medium viscosity and exceptional additive package, DEPA.620D offers outstanding lubricity, making it a preferred choice among manufacturers for high-speed, high-precision turning operations on automatics and multi-spindle lathes. This product is especially suitable for machining free-cutting titanium, steel with tensile strengths up to 80 tons, and even stainless steel. As a leading supplier from China, our factory guarantees top-quality cutting oils like DEPA.620D to meet the demands of the manufacturing industry

    Advantages
    • 🔧

      Very good lubricity and EP property to enhance surface finishing and dimensional control of components.

    • ⚙️

      Excellent performance for heavy duty cutting of high hardness ferrous metals.

    • 💧

      Good defoaming performance.

    • 🛡️

      Excellent anti-rust property to protect the metal parts from rusting even after machining.

    Typical Data
    Test Unit Typical
    Density(g/cm³)@20℃ / 0.86
    Viscosity @40℃ CSt 17.8
    Open flash point ≥180
    Colour / Brown transparent

    While the information and figures given here are typical of current production and confirm to specification, minor variations may occur. No warranty expressed or implied is given concerning the accuracy of the information or the suitability of the products.

    Take Care
    Small details that prevent you from wasting money unnecessarily
    • Each type of machinery is marked with a simple diagram indicating the parts that need to be refueled, the name of the oil product, the refueling cycle, etc., and is managed by a dedicated person to avoid using the wrong oil product.

    • Use dedicated containers for each type of oil, and label the container with the name of the oil to prevent contamination.

    • After each addition or replacement of lubricating oil, keep a mechanical maintenance record.

    • Rust inhibitor must be added to the cooling water circulation system of the injection molding machine to prevent the formation of scale, which can cause corrosion and leakage of the heat exchanger into the hydraulic system.

    • Keep the fuel tank sealed to prevent the entry of dust and moisture.

    ⚠️

    Attention must be paid to using specialized oil pumps for various types, especially for pure oil and water-based coolant. Mixing oil pumps is extremely avoided, as it may cause corrosion and increased wear of metal parts in the equipment lubrication system. It is also possible to mix cutting fluid with miscellaneous oil, which can easily breed bacteria and shorten the service life.

    Frequently Asked Questions
    What makes this cutting oil suitable for heavy-duty machining of ferrous metals?
    This cutting oil is formulated with excellent lubricity and extreme pressure (EP) additives that reduce friction and heat during heavy-duty cutting operations. Its properties are specifically optimized for high-hardness ferrous metals, ensuring superior surface finishing and precise dimensional control.
    How does the anti-rust property work after machining is complete?
    The oil contains high-performance rust inhibitor additives that form a protective film on metal surfaces. This film remains effective even after the machining process is finished, shielding components from oxidation and corrosion during storage or transport.
    What is the recommended viscosity and why does it matter?
    The typical viscosity is 17.8 CSt at 40℃, which provides an optimal balance between flow ability and film strength. A proper viscosity ensures the oil reaches all contact surfaces efficiently while maintaining a strong lubricating film under cutting pressure.
    Why should dedicated containers and oil pumps be used for each type of oil?
    Cross-contamination between different oil types can degrade performance significantly. Mixing cutting fluid with other oils can promote bacterial growth, reduce lubrication effectiveness, and cause corrosion or accelerated wear in the equipment's lubrication system. Dedicated containers and pumps prevent these risks entirely.
    How should the fuel tank be maintained to extend the oil's service life?
    The fuel tank should always be kept sealed to prevent dust, moisture, and airborne contaminants from entering. Moisture ingress can promote rust and bacterial growth, while dust particles can accelerate wear on machined surfaces. Regular maintenance records should also be kept after each oil addition or replacement.
    Why is rust inhibitor necessary in the cooling water circulation system of injection molding machines?
    Without a rust inhibitor, mineral deposits and scale can form inside the cooling water system. This scale causes corrosion and can lead to leakage in the heat exchanger, potentially allowing water to contaminate the hydraulic system. Adding a rust inhibitor protects the internal components and ensures stable, long-term operation of the machine.

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