How is a CNC grinding machine built and what does it do?

What is a CNC grinding machine, how is it structured, and what are its functions? Let’s explore the answers in the following article.

1.  What Is a CNC Grinding Machine?

A CNC grinding machine is a general term for equipment capable of operating based on pre-programmed instructions, fully automated, without the need for manual force. CNC stands for Computer Numerical Control. CNC machining is the process of creating customized shapes from a workpiece according to programmed designs stored in the computer.

The product surface is perfectly machined using a CNC grinding machine.

Automation through CNC technology is applied across many fields, from milling, turning, laser cutting, and printing to surface finishing of metal products. For large, wide format metal materials such as steel, stainless steel, iron, aluminum sheets, and box sections, manual polishing is not feasible. CNC grinding offers significantly higher efficiency while saving time and labor costs. Therefore, this type of machine is indispensable in metal and mechanical production lines.

A CNC grinding machine can be simply understood as a high tech metal polishing machine that operates based on computer programming controlled by humans. Its surface finishing process is fully automated, ensuring 100 percent accuracy with no errors like those that occur during manual grinding. It is highly suitable for large scale mechanical workshops with high output, aiming to optimize the production process

2. How Is a CNC Grinding Machine Structured?

 The general structure of CNC grinding machines is divided into two main parts: the control unit and the execution unit (mechanical components). The control unit connects to the computer and transmits signals to the execution unit, which then processes the product surface according to the pre established workflow

The structure of a CNC grinding machine consists of the control unit (electrical box) and the execution unit (mechanical components).

The most common CNC grinding machine is the surface grinding machine. The mechanical structure of a CNC surface grinder includes the grinding wheel, the chuck, and the rotary table. The chuck holds the workpiece in place. The grinding wheel in the mechanical unit rotates to create friction, flattening the surface of metal or non metal materials and removing oxides and impurities from the workpiece surface. This equipment belongs to the group of dry grinding machines.

The mechanical unit of a 4/6/8 head polishing machine with a continuously rotating chuck design.

The grinding wheels can be made from materials such as felt wheels, cloth wheels, or sandpaper. Sandpaper is used to remove rust, dirt, and surface defects, providing a clean and smooth finish on the workpiece. Felt wheels are commonly used to create hairline or satin scratches, enhancing the appearance of steel and stainless steel surfaces. Cloth wheels are used to increase smoothness and shine on the product surface.

In addition, some high tech CNC grinding machines use water in the grinding process. These are called wet grinding machines. Water not only effectively processes the workpiece surface but also cools it and prevents fine dust, protecting the environment. The mechanical units of these machines have a more specialized structure compared to machines using conventional consumable materials.

Some modern CNC grinding machines are capable of both wet and dry grinding, though they are not yet widely used. In most mechanical workshops, dry grinding machines are typically employed.

3. Where to Buy CNC Grinding Machines to Ensure Quality?

 The function of a CNC grinding machine is to process flat, sheet, or box shaped metal surfaces through grinding, using friction (for dry grinding) or the impact of water jets (for wet grinding). This is specialized equipment for large metal and non metal products that semi automatic or manual grinders cannot handle.

Therefore, when purchasing this equipment, customers should seek reputable distributors to ensure the machine operates well and experiences minimal errors or breakdowns during use. In Vietnam, LEKAR GROUP is one of the most reputable importers and distributors of CNC surface grinding machines. All LEKAR grinding machines are imported from Thailand and China.

LEKAR GROUP imports and distributes high tech CNC grinding machines.

LEKAR GROUP currently distributes the following CNC grinding machines: single side automatic polishing machines, two head wet belt grinding machines, single side automatic polishing machines with one felt head and vibration function, triangular flat surface scratch polishing machines, four head wet belt grinding machines, single side automatic scratch machines, automatic flat surface polishing machines, along with many other modern devices to support product surface finishing processes for businesses.

For detailed information on the structure of CNC grinding machines or other machinery, consumables, and services from LEKAR GROUP, customers are kindly requested to contact:

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