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High Frequency Welded ERW Tube Mill Cold Saw - Quality Cutting Solutions from China Suppliers and Factory
Product Description
Cold cutting saw is based on the principle of cold milling. Carbide saw blades are used to cut materials at a controllable speed and feed rate, similar to milling in mechanical processing. Using servo systems to achieve synchronous movement of the saw blades and steel pipe. In the cutting process, the temperature is low and there is no heat-affect zone, which avoid material changes. The saw blades has a long life, which can be reused. Also energy consumption is reduced more over 50%. With no burrs inside and outside, the incision is smooth. And this pipe can be directly used in high precision scenes, such as automotive oil pipe, medical equipment pipe, eliminating subsequent processing. Also dry cut and trace cooling methods reduce the pollution; no sparks, no noises(less than 80 dB), the saw blades is evenly stressed and has low risk of breakage.
The advantage of cold saw
Using servo systems to achieve synchronous movement of the saw blades and steel pipe. In the cutting process, the temperature is low and there is no heat-affect zone, which avoid material changes.
Compared to flying saw, the incision is smooth with no burrs inside and outside. And this pipe can be directly used in high precision scenes, such as automotive oil pipe, medical equipment pipe, eliminating subsequent processing.
Also dry cut and trace cooling methods reduce the pollution; no sparks, no noises(less than 80 dB), the saw blades is evenly stressed and has low risk of breakage.
The difference between flying saw and cold saw
| Comparison Dimensions | Computerized Saw (Hot Cutting Saw) | Cold Cutting Saw |
|---|---|---|
| Core Principle | A high-speed rotating saw blade (mostly tungsten steel) generates high temperatures through friction, "burning" through the welded pipe. | Cold milling: Using a lower speed and higher feed rate, metal is cut off like a milling cutter, resulting in a lower temperature rise during the process. |
| Cutting effect | The end face has oxidation discoloration (blue-purple), large burrs, and the tube opening is easily deformed. | The end face is flat and smooth, burr-free, and does not deform, and usually requires no secondary processing. |
| Process characteristics | High speed, high temperature, large sparks, loud noise, and smoke. | Low speed, low temperature, virtually no sparks, low noise, more environmentally friendly and safer. |
| Equipment and Costs | The structure is relatively simple, and the initial investment is low; the saw blade has a low cost but wears out quickly. | The equipment is complex (servo-controlled) and requires a high initial investment; specialized saw blades are expensive but have a long lifespan and can be resharpened multiple times. |
| Production efficiency | While it offers fast single-cutting speed, subsequent deburring and other processes are required, impacting overall efficiency. | While the single cutting time is slightly longer, the high quality of the cut eliminates the need for subsequent processes, resulting in high overall efficiency. |
How to choose flying saw?
In summary, the choice between these two types of equipment mainly depends on your production needs and requirements for pipe quality:
In short, if you prioritize pipe quality and long-term benefits, a cold saw should be used; if you prioritize the lowest initial investment and don't have high requirements for the appearance of the pipe ends, a computer-controlled saw remains an economical choice.
If you can provide the specific production materials (such as carbon steel or stainless steel) and the specific requirements for the cut, I can provide you with a more detailed analysis.
Frequently Asked Questions (FAQ)
What is a cold cutting saw and how does it work?
A cold cutting saw operates on the principle of cold milling. It uses carbide blades to cut materials at a controlled speed and feed rate, ensuring the process remains at a low temperature to prevent any heat-affected zones or material changes.
What are the main advantages of a cold saw compared to a hot/flying saw?
Cold saws produce smooth, burr-free incisions with no deformation or oxidation discoloration. They operate with low noise (under 80 dB), produce no sparks or smoke, and eliminate the need for subsequent deburring processes.
Can cold-cut pipes be used directly in high-precision applications?
Yes. Because the cuts are flat, smooth, and burr-free, these pipes can be directly used in high-precision fields such as automotive oil pipes and medical equipment pipes without requiring secondary processing.
Is a cold cutting saw environmentally friendly?
Yes, it is highly environmentally friendly. It uses dry cutting and trace cooling methods to minimize pollution, produces no sparks, generates no smoke, and significantly reduces energy consumption by over 50%.
How does the cost of a cold saw compare to a computerized hot saw?
A computerized hot saw has a simpler structure and lower initial investment, but the blades wear out quickly. A cold saw requires a higher initial investment due to complex servo controls, but the specialized blades have a long lifespan, can be resharpened multiple times, and lower overall operational costs by eliminating subsequent processing.
How do I choose between a computerized hot saw and a cold saw?
Choose a cold saw if you prioritize high pipe quality, smooth end faces, and long-term efficiency. Choose a computerized hot saw if you require a lower initial investment and do not have strict quality requirements for the appearance of the pipe ends.
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