High Frequency Welded Erw Tube Mill Cold Saw
Product Description
The advantage of cold saw
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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.
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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: Friction Cutting | 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.
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