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High-Quality DEPA.620D Precision Cutting Oil from China Suppliers and Factory for Superior Machining Performance
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
- 1 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.
- 2 Use dedicated containers for each type of oil, and label the container with the name of the oil to prevent contamination.
- 3 After each addition or replacement of lubricating oil, keep a mechanical maintenance record.
- 4 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.
- 5 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
Q
What makes this cutting oil suitable for heavy-duty machining of ferrous metals?
This cutting oil features excellent EP (extreme pressure) additives and lubricity agents that form a protective film on metal surfaces under high-load conditions. This significantly reduces friction and tool wear during heavy-duty cutting of high-hardness ferrous metals, improving both surface finish and dimensional accuracy.
Q
How does the anti-rust property work after machining is complete?
The oil contains corrosion inhibitors that leave a thin protective layer on machined metal surfaces. This layer acts as a barrier against moisture and oxygen, preventing rust formation even after the machining process is finished and the parts are in storage or transit.
Q
What is the recommended viscosity range for this product and why does it matter?
The typical viscosity is 17.8 CSt at 40℃, which is optimized for cutting applications. Proper viscosity ensures the oil flows efficiently to the cutting zone, provides adequate film strength to protect tool edges, and drains cleanly from workpieces without leaving excessive residue.
Q
Why is it important to use dedicated oil containers and pumps for each oil type?
Cross-contamination between different oil types — especially between pure cutting oil and water-based coolants — can degrade the performance of both fluids, promote bacterial growth, accelerate corrosion, and increase wear on machine components. Using dedicated, clearly labeled containers and pumps for each product eliminates this risk entirely.
Q
What is the significance of the open flash point being ≥180℃?
A flash point of ≥180℃ indicates that the oil has a high ignition threshold, making it significantly safer to use in high-temperature machining environments. It reduces fire risk during operations involving friction, heat generation, or proximity to ignition sources, and also contributes to a longer service life of the fluid.
Q
How should the cooling water system of an injection molding machine be maintained when using this oil?
A rust inhibitor must be added to the cooling water circulation system to prevent scale buildup. Scale formation can cause corrosion and eventual leakage in the heat exchanger, which risks contaminating the hydraulic system with water. Regular inspection and maintenance records should be kept to ensure the system remains clean and fully functional.