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Cutting oils can be categorized into water-soluble cutting oils, which are designed to be diluted with water, and oil-based non-water-soluble cutting oils. Initially, only non-water-soluble cutting oils were used to prevent tool seizure and wear. As the era of mass production arrived, the demand for increased processing speeds grew, leading to the development of ceramic tools such as carbide tools that enabled high-temperature cutting. However, oil cooling was insufficient for cooling and posed a fire hazard, which led to the practical application of water-soluble cutting oils that allow for rapid cooling. Oil-based cutting oils excel in lubricity and penetrability, providing finishing precision, rust resistance, and resistance to spoilage. In other words, non-water-soluble cutting oils possess excellent cutting functionality, while the development of water-soluble cutting oils has progressed from the perspective of how to incorporate the characteristics of oil. 【Features of Water-Soluble Cutting Oils】 ■ High cooling speed - Water has a specific heat that is twice that of oil, allowing the same volume of coolant to absorb twice the heat. - The heat absorption capacity during water evaporation (latent heat of vaporization) is very large (the latent heat of vaporization of water is approximately 540 kcal/kg). *For more details, please refer to the PDF document or feel free to contact us.

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Cutting oils can be broadly classified into "non-water-soluble cutting oils," which are oil-based, and "water-soluble cutting oils," which are diluted with water. The composition of the two types differs significantly. "Non-water-soluble cutting oils" are basically used in their concentrated form, and the oils can be derived from petroleum-based mineral oils or animal and vegetable fats. Mineral oils have high thermal stability, while fats excel in lubricity and permeability. Additionally, when heavy machining is performed, sulfur-based extreme pressure additives are added to the concentrated oil. In other words, "non-water-soluble cutting oils" consist of three types of components: mineral oils, fats, and extreme pressure additives, and the ratio of these components is adjusted based on the machining target and content. "Water-soluble cutting oils," on the other hand, are generally used by diluting the concentrated oil to an appropriate concentration. They significantly enhance cooling properties with water, but to achieve lubricity based on water, mineral oils and fats are added. Furthermore, surfactants are included to solubilize, emulsify, and enhance permeability of the oil in water, along with rust inhibitors and preservatives to prevent rust and spoilage due to oil-water mixing. *For more details, please refer to the PDF document or feel free to contact us.*

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Cutting oils can be based on oils such as fats and mineral oils, or they can be water-based with added functions for lubrication, rust prevention, and preservation. The water-based ones are soluble in water, hence they are called "water-soluble cutting oils." Conventional cutting oils are oil-based and do not dissolve in water, so they are referred to as "non-water-soluble cutting oils." According to JIS standards, there are four types of "non-water-soluble cutting oils" (one type without sulfur-based extreme pressure additives and three types with sulfur-based extreme pressure additives depending on the amount added), and three types of "water-soluble cutting oils" (based on oil quantity: emulsion/soluble/solution). *For more details, please refer to the PDF document or feel free to contact us.*

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When performing machining with lathes, milling machines, and grinding machines, applying liquid to the workpiece improves machining efficiency and finishing quality. The liquid used is typically a lubricant known as "cutting oil." Subsequently, due to the demand for improved machining efficiency, cutting fluids that can be diluted with water for rapid cooling were developed, and these are collectively referred to as "cutting fluids." In other words, cutting fluids can be divided into oil-based non-water-soluble cutting fluids that are used undiluted and water-soluble cutting fluids that are used when diluted with water. In recent years, with the demands for high quality, high precision, cost reduction, and shorter delivery times in industrial processing (QCD), the importance of cutting fluids has also increased. Due to the differences in cutting fluids, not only the finishing quality but also tool life and the machining environment can be affected, making it essential to choose cutting fluids suitable for the machining methods and conditions. *For more details, please refer to the PDF document or feel free to contact us.*

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Introducing the water-soluble mist coolant supply device M-1 (single pump type). The M series, floor-mounted type, is a standard model compatible with a wide range of machine tools. It is installed next to the machine and supplies a large volume of mist (up to 40cc/min). Main benefits include: ◆ Lubrication effect → Water-soluble mist enhances the penetration of mist at the machining point and improves the adhesion of mist at the cutting edge, reducing cutting resistance! ◆ Cooling effect → High-efficiency vapor cooling is executed at the cutting edge. It causes thermal deformation of chips, making discharge easier. In other words, this leads to extended tool life and reduced cutting power, resulting in significant cost savings. There is no need to recover coolant fluid. (= Reduction in industrial costs!) For more details, please contact us or download the catalog to view.

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Introducing the water-soluble mist coolant supply device M-1s (onboard type). The S series onboard type consists of an onboard unit compatible with large machinery and a replenishment tank. It is a large mist system composed of a small onboard unit and a floor-standing tank for mist liquid replenishment. Main benefits include: ◆ Lubrication effect → Water-soluble mist enhances the penetration of mist to the machining point and improves the adhesion of mist at the cutting edge, reducing cutting resistance! ◆ Cooling effect → High-efficiency vapor cooling is executed at the cutting edge. It applies thermal deformation to the chips, making discharge easier. In other words, this leads to an extension of tool life and a reduction in cutting power, allowing for significant cost savings. There is also no need to recover coolant liquid. (= Reduction in industrial costs!) For more details, please contact us or download the catalog to view.

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Introducing the water-soluble mist coolant supply device M-2 (2-pump type). The M series, floor-mounted type, is a standard model compatible with a wide range of machine tools. It is installed beside the machine and supplies a large volume of mist (MAX 40cc/min). Main benefits include: ◆ Lubrication effect → Water-soluble mist enhances the penetration of mist at the processing point and increases the adhesion of mist at the cutting edge, reducing cutting resistance! ◆ Cooling effect → Implements high-efficiency vapor cooling at the cutting edge. It causes thermal deformation in chips, making discharge easier. In other words, it leads to an extension of tool life and a reduction in cutting power, allowing for significant cost savings. There is also no need for coolant liquid recovery. (= Reduction in industrial costs!) For more details, please contact us or download the catalog to view.

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"Semidry processing (MQL)" is a method that sprays cutting fluid in mist form at the processing point, significantly reducing the amount of oil used while maintaining cutting performance. There are two types of semidry processing: "water-soluble mist," which excels in cooling properties, and "oil mist," which excels in lubrication properties. The equipment from Cool Tech is designed for water-soluble mist. This document introduces "examples of equipment usage" and "four features of Cool Tech's water-soluble mist processing." We encourage you to read it. [Contents] ■ What is semidry processing (MQL)? ■ Types of semidry processing ■ Examples of equipment usage ■ Four features of Cool Tech's water-soluble mist processing ■ Improvement of machining efficiency in drilling *For more details, please refer to the PDF document or feel free to contact us.

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Kiswell welding materials, known for their overwhelming cost performance, are widely adopted by major users. Cool Tech is the official distributor of Kiswell.

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