How to choose an oscillating knife cutting machine?

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Author : Jack
Update time : 2023-04-01 22:43:04
How to choose an oscillating knife cutting machine- choose the right cutting tool
If you are purchasing a CNC oscillating knife cutting machine, then you must be thinking: How should I choose? What is its cutting speed? What is its cutting accuracy? How it works? Can it cut my material…

 In this article, I will mainly explain to you how to choose the right cutting tool for the CNC oscillating knife cutting machine.
Types of cutting tools:
The CNC knife cutting machine can be equipped with various tool combinations. The main types include oscillating knives, round knives, drag knives, creasing knives, beveling knives, semi-permeable cutting knives, marker pens, and other tools to meet the cutting requirements of various materials. Various processes such as creasing, grooving, punching, and scribing.

Divided by power type: oscillating tools are divided into electric oscillating tools (referred to as EOT) and pneumatic oscillating tools (referred to as POT);

Divided by vibration amplitude: it can be divided into small (1mm), medium (3mm-5mm), and large (10mm) oscillation tools with different amplitudes.

So, should I choose EOT or POT? Should I choose a small-amplitude oscillating tool or a large-amplitude oscillating tool?

The difference between EOT and POT

EOT uses a motor drive to make the blade oscillate up and down quickly to achieve rapid cutting of materials. According to the density, hardness, and thickness of the material, different power motors can be used, so it is divided into high-power and low-power electric oscillation tools.
EOT is the smallest and medium amplitude of 1mm-3mm. Due to the high vibration frequency and small amplitude, it is suitable for cutting materials with high density and small thickness. For example, felt acoustic boards, leather, silk ring footpads, corrugated paper, cartons, PVC crystal pads, advertising materials, composite materials, and other flexible materials.

POT uses a compressed gas of ≥0.4MPA to drive the blade to oscillate up and down quickly to achieve rapid cutting of materials. Customers can set the air pressure during cutting according to the graphics, thickness, hardness, density, and other factors of the cutting material to obtain the best cutting experience.

POT tools mostly have a large amplitude of 5mm-10mm. Due to the high vibration frequency and large vibration amplitude, the power generated by the up and down vibration is stronger than POT, thereby reducing the resistance in the cutting process, so it can not only be used for cutting with high hardness and high density. , Materials with large thickness can also meet the requirements of materials with large thickness and low density. For example, sealing gaskets (especially suitable for cutting composite gaskets with built-in metal), EVA foam packaging, multilayer fabric or leather cutting, ultra-thick corrugated cardboard, and other materials.

Disadvantages of EOT and POT
Yes, although our knives are of great quality, each type of tool has its advantages and disadvantages, which is why it is so important to choose the right cutting tool.

Because EOT is driven by a motor, the noise during the cutting process is low, the cutting speed is fast, and the section is smoother. However, because the EOT cutting process will be affected by strong resistance, it will tear when cutting materials with low hardness. Materials that cannot be cut perfectly, such as low-density sponge. For materials with high hardness, we can increase the motor power of EOT, but the long-term cutting of materials with too high density will increase the gap between the internal structure of the tool and damage the cutting accuracy of the tool. Therefore, EOT cutters are better at high-speed cutting, and cannot meet the cutting requirements of ultra-high or ultra-low hardness materials.

POT adopts flexible gas control and is equipped with a larger amplitude. Therefore, compared with EOT, it has better self-protection performance and stronger cutting power, and can quickly penetrate dense and hard materials. Because POT has a stronger impact force, it will not pull the material when cutting soft materials such as sponge, foam, and silicone foam, avoiding deformation or tearing of the material, and ensuring good cutting accuracy; when cutting hard materials At the same time, it will also reduce the damage caused by the resistance to the tool and ensure the stability of the tool. Because POT uses a large amplitude design, when it cuts the same material at the speed of EOT, it will not cut through. Therefore, the POT tool has more powerful destructiveness, but it cannot meet the ultra-high-speed cutting.

The above is about the comparison of the two CNC oscillating tools. I hope it can help you choose the right cutting tool and really solve the cutting problems you face in production. If you want to get more professional advice, you can contact us, we will answer you in time and provide you with a free test report.

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