Ertegha Sanat Roshd

  • About Ertegha Sanat Roshd
  • Miscible Cutting
    Fluid & related Data
  • 2008 - 2024

About Us

Since 2008, Ertegha Sanat Roshd, a subsidiary of ESA Holding, has led the development of industrial coolant and lubricant fluid in Iran. Our flagship product, “SARAD,” embodies our commitment to providing innovative, eco-friendly, and safe solutions in industrial Collant & Lubricant fluid technology. Founded on a strong foundation of knowledge and experience, Ertegha Sanat Roshd was established by university faculty members. They reverse-engineered leading Swiss brands to create high-quality water-miscible cutting fluid. With a unique formula and access to local raw materials at reasonable prices, our specialists have succeeded in producing water-miscible cutting fluid that is both cost-effective and of excellent quality. We take pride in being the sole producer of environmentally friendly coolants in Iran, collaborating extensively with notable domestic and international manufacturers. Our service goes beyond simply selling the product. We visit customers’ production lines to provide solutions for any issues and to enhance machinery performance. To meet client needs, Ertegha Sanat Roshd has also developed the Magnetic Chip Removal Machine, offering customers an efficient solution for seamless chip removal while improving productivity and optimizing performance. At Ertegha Sanat Roshd, our mission is to lead the industry by providing innovative, eco-friendly, and high-quality coolant and lubricant fluids. We are committed to developing efficient, safe, and sustainable solutions while offering unparalleled customer support. By fostering strong collaborations and delivering cutting-edge technology, we aim to optimize performance and productivity for our clients worldwide.

An overview about industrial lubricant and coolant Fluids (water-based)

Water-soluble oil, also known as soluble oil or oil-in-water emulsion, is a type of oil that is mixable with water and forms a stable emulsion. Typically, it appears as a milky solution and exhibits suitable emulsion stability, corrosion protection, and anti-rust properties as essential features. Normally, oil does not dissolve in water; when oil is added to water, its particles disperse as fine droplets that remain suspended. The conversion of oil into very fine particles is achieved through a chemical compound called an emulsifier, which is responsible for creating the oil-in-water emulsion. This oil easily blends with water in various ratios, creating a milky and homogeneous mixture. Water-soluble oil, with its ideal lubrication properties, facilitates metalworking processes and prevents the generation of excessive heat due to its cooling effects. It possesses anti-rust and anti-foam properties as well, making it suitable for various metalworking operations that require a water and oil mixture. In essence, the oil present in the emulsion provides lubrication, while the water in the mixture serves the purpose of cooling. In 2008, Ertegha Sanat Roshd initiated production of SARAD cutting fluid, the first environmentally friendly water-miscible coolant & lubricant fluid compatible with operators. Sarad Cutting Fluids can be used in all machinery process such as cold forming, cutting, grinding, glass-making, etc., and are suitable for various ferrous and non-ferrous metals. They demonstrate high emulsion stability, even when mixed with very hard water. Another advantage of Sarad is its longer lifespan compared to conventional Cutting Fluids and its lack of unpleasant odor without the need to add antibacterial agents.

SARAD Cutting Fluid Technical Specifications

Why SARAD stands out?

– With our cutting-edge magnetic chip and tramp oil separator made by Ertegha Sanat Roshd specialists, we offer clients an efficient solution for seamless chip and tramp oil separator, providing optimized performance and productivity.
  • Having a unique, signature formula that enables recycling at very low disposal price
  • Easy maintenance and simple quality control – No need to add antifoam and antibacterial agents
  • High mixability with water
  • Excellent lubrication between the workpiece and the tool
  • Excellent surface finish for the machined workpiece
  • Increasing tool lifetime
  • Usable for all machining processes
  • Highly suitable for all metal types such as Aluminum, still, cast iron , copper, bronze and etc.
  • High corrosion protection ( no corrosion)
  • High performance even in high dilution to %3 without corrosion in ductile cast iron
  • Easy storage

Material Safety Data Sheet (MsDs)

Manual for Proper Maintenance of Sarad Water-Miscible Cutting Fluid

How to properly mix and prepare cutting fluid

Cutting fluid is prepared by mixing water with a certain amount of soluble oil, where the amount of oil added can vary from 3 to 15 percent depending on the type of machining process. The milky color of the cutting fluid is a result of the emulsion formed by the dispersion (spreading) of oil particles in the water, and the uniformity of this dispersion is important. The finer the particles of soluble oil in the water, the more efficient and desirable the prepared cutting fluid will be. Therefore, observing the following points is crucial. Since water is one of the main and influential factors in the preparation of cutting fluid, using water of suitable quality has a significant impact on preparing the appropriate cutting fluidWhere possible, the use of a jet mixer is recommended to prepare a uniform and stable emulsion. If a jet mixer is not available, it is essential to pour oil into the water while stirring. (Pouring water into the oil causes the oil to clump and does not form a desirable emulsion.)

How to charge the new cutting fluid

Before draining the old cutting fluid, the transfer channels and hard-to-reach areas of the machine’s tank should be thoroughly cleaned of bacterial and fungal colonies using alkaline cleaning agents. For this purpose, before draining the old cutting fluid, 1% alkaline cleaning agents should be added to the tank, and circulation should be carried out for 2 to 8 hours, depending on the level of contamination. After completing the above steps, the used cutting fluid and chips inside the machine’s tank should be completely drained, and the tank should be washed with water. The prepared cutting fluid with the appropriate concentration should be charged into the machine’s tank Under no circumstances should water and cutting fluid oil be mixed inside the machine’s tank. If the concentration of the cutting fluid in the machine increases due to water evaporation, to adjust the concentration, cutting fluid with a lower concentration (1 to 3 percent) should be prepared and topped up, and adding pure water directly into the cutting fluid tank should be avoided as much as possible.

Daily operation before starting the device

The general process of controlling cutting fluid

Concentration control

Why should the concentration be controlled?

For the stability and long-term life of the used emulsion, the correct concentration is the main factor. In other words, the presence or absence of a suitable stabilizer, PH regulator and other compounds needed in cutting fluid formulation is determined by measuring the concentration

How to measure:

  1. Set the refractometer to zero with pure water
  2. Put a drop of cutting fluid on the glass part of the refractometer
  3. Read the observed surface value in the refractometer
  4. The obtained number should be multiplied by the refractometric coefficient of the cutting fluid
  5. The values should be written in the control sheet
  6. The refractometer should be washed and cleaned

How to measure?

  • Calibrate the refractometer with pure water to zero
  • Place a drop of the cutting fluid solution on the glass part of the refractometer
  • Read the value observed on the refractometer
  • Multiply the obtained value by the refractometer factor of the cutting fluid
  • Write the values on the control sheet
  • Clean and rinse the refractometer

Important note:

Contamination can affect the accurate reading of the refractometer, so that the accurate reading of the refractometer number will not be possible in the emulsion contaminated with oil. In other words, a suitable emulsion with accurate mixing will show a sharp line in the refractometer.

PH value control

Why PH should be controlled?

PH indicate us how affectual of our emulsion is. The low PH is the first sign of a decrease in the quality of the emulsion. The suitable range for cutting fluid emulsion is between 8.7 to 9.6.

How to set up PH

  1. Insert the PH test strip into the clean emulsion and hold it for about 30 seconds.
  2. Compare the color shown on the paper with the standard colors on the box.
  3. Record the values in the control sheet.

Consequences of high or low PH

Odor control and appearance quality

The bad smell sometimes indicates the imbalance of the emulsion and it can happen when the emulsion remains stagnant, in which case a 30minutes circulation of cutting fluid through the circulation system can solve the problem. The proper appearance gives good information about the stability of the emulsion, so a stable appearance is a good indication of the stability of the emulsion. The amount of change that can be detected by the eye or the formation of a significant floating layer is the first sign of an unstable emulsion.

Important note: Record the changes in the control sheet.

Optional Control

Emulsion Hardness

In some systems, controlling the hardness level may be beneficial. Controlling the hardness can significantly affect the foaming of the cutting fluid.

How to measure hardness

  1. Place the hardness test strip into the emulsion. (There should be no contaminants in the emulsion)
  2. Wait for one minute and compare the color of the strip with the colors on the box.

Periodic control of important parameters

The control of changes in effective parameters in cutting fluid depends on the size of the tank. In large tanks, it is necessary to control the changes more than in small tanks.

Important note: check the data and contact by supplier when you see a discrepancy.

Removing excess oils

Waste oils floating on the surface of the coolant may provide conditions for the anaerobic growth of microorganisms in the tank and spoil the cutting fluid, especially when the coolant remains stagnant, the oil slowly moves to the surface and aggravates the spoilage of the cutting fluid. When the cutting fluid in the tank is stagnant, use a skimmer to collect waste oils from the surface of the cutting fluid in the tank. If you do not have access to the above device, you can do this manually.

Removal of chips and microchips

Chips and microchips are deposited at the bottom of the tank, especially when the coolant is not circulating. Removing sediments from the bottom of the tank increases stability. Also prevents corrosion and the growth of microorganisms.

Preventing the corruption of cutting fluid

To extend the life of the cutting fluid, prevent the entering of spoiled oils, cigarette butts, coffee or tea residues, chocolate, and other food materials into the cutting fluid tan