Coolant for CNC machines

CNC machines are numerically controlled equipment that directly works without direct human participation. liquid, namely coolant for CNC machines.

Such progressive equipment is used in various industries. For example: metalworking, woodworking, stone processing, plastic processing and even jewelry processing. Such machines can saw, drill and engrave the workpiece. In addition, laser cutting and milling can be performed. Some machines are able to combine different types of workpiece processing. Such devices are called CNC-based machining centers.

Why you need coolant for a CNC machine:

• reduces friction between the machine and the product during processing
• keeps workpiece temperature low to improve surface quality
• lubricates slip points outside the cutting area
• washes away chips from workpieces
• protects metalworking equipment from rust and corrosion
• increases tool life
• increases the intensity of the workflow (increases processing speed).

High-quality coolant prevents early tool wear, increases the productivity of plastic deformation equipment and changes in metal properties due to overheating of the workpiece. As a result, the intensity of the technological process and the productivity of the machines are improved. The clarity and purity of workpiece processing increases.

Which coolants are used for CNC machines

Several types of coolant are used in production:

• ready-to-use oil (non-water-miscible)
• Water-miscible oil coolants
• synthetic and semi-synthetic water miscibles.

Ready-to-Use Oil Coolants is an oil-based process fluid, insoluble in water.

Earlier, oil was used in its pure form at some metalworking enterprises. However, without anti-seize, anti-corrosion and other additives, it does not work effectively. Therefore, nowadays pure oil has been replaced by progressive fluids with complex composition, especially for high-tech machine tools.
Such coolants are recommended for heavy metalworking operations. For example, gear cutting, milling, threading, deep drilling. Because it is here that strong lubricating properties and reduced chip ejection are very important, while cutting speed and temperature are low.

Water-miscible oil coolants – are a water-oil emulsion. The composition uses mineral oils (usually from 50%), alcohols, surfactants and additives. This coolant has high lubricity, which is necessary for heavy-duty operations and protection of parts from corrosion. However, soluble oils are more prone to bacterial damage and the manufacturer should take this into account and introduce more bactericidal additives.

Synthetic coolants – unlike other types of coolants, they do not contain oils. These coolants are highly resistant to contamination and last twice as long as soluble oils. They are usually used for grinding and other light operations. Synthetic coolants have excellent cooling and washing properties.

Semi-synthetic coolants – has an average mineral oil content of 10-25%. Such coolant washes well, has strong cooling properties and lubricates better, in comparison with synthetic solutions. Semi-synthetic coolants have fairly strong antibacterial properties. Their working solutions practically do not have bacterial contamination.

In order for your coolant to work well, you must follow the culture of production, namely:

7 golden rules for coolant maintenance

1. To store and prepare the coolant solution in a separate clean container, preferably with graduation.
2. During cooking, use regular tap water with normal hardness.
3. Maintain the concentration of the working solution recommended by the manufacturer by topping up with a weak coolant solution, not water.
4. Monitor the main coolant parameters daily or at least 3 times a week (solution color and smell, concentration, pH and water hardness).
5. Assign an employee to measure indicators and record the results of monitoring the state of the working coolant solution in a special journal.
6. Use filtration equipment or periodically clean the machine tank from chips, oil and other debris.
7. Change the coolant on time and correctly.

Click on the link and see the instructions for changing the coolant in the machine.< /span>

Follow the link and read the full recommendations coolant

If you follow all these rules, coolant solution and expensive tools will last twice or more longer.

On modern equipment such as CNC machines, it is essential to use high quality coolant with complex composition and additives. What are these additives, let’s look at.

The main additives that are part of coolant for machine tools CNC:

1. Anti-corrosion – protect cutting metal blanks from corrosion;
2. Anti-seize – reduce work loads on cutting surfaces, components and assemblies involved in metalworking;
3. Anti-foam – reduces foam formation during operation. Lubricants that do not foam last longer.

Novohim offers several types of coolants for CNC machines. For example, semi-synthetic cutting fluid Defender “Pro” with a high oil content.
High class coolant Defender “Pro”< /span> has the strongest composition reinforced with additives and acticides from the world’s best manufacturers. Suitable for any heavy metalworking operations: turning, milling, deep drilling, broaching, engraving, drilling, thread rolling and more.

The price and high quality of this coolant for a CNC machine makes it quite possible to buy it for processing all grades of steel, including high-alloy steel, aluminum, cast iron, stainless steel, titanium and other metals.

Follow the link and see all the benefits of Defender coolant “Pro”

Table 1. Quality indicators of Defender “Pro”: