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High Frequency Welded ERW Tube Mill Cold Saw - China Suppliers & Factory for Precision Cutting Solutions
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
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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 | 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 & 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 saw blades to cut metal pipes at a controlled speed and feed rate. Because it generates very little heat during the process, it prevents thermal deformation and avoids creating a heat-affected zone on the workpiece.
What are the primary benefits of using a cold saw over a hot flying saw?
Cold saws provide flat, smooth, and burr-free cuts that typically require no secondary processing. They are also energy-efficient (reducing consumption by over 50%), produce no sparks or smoke, and operate quietly at noise levels under 80 dB.
Why does a cold cutting saw produce burr-free cuts?
Unlike hot saws that melt or "burn" through the metal using high-speed friction, a cold saw mills the metal away at a lower temperature and precise speed. This prevents the material from warping or forming heavy slag, leaving a clean, smooth edge.
Can cold saw blades be reused?
Yes, the carbide saw blades used in cold cutting machines have a long service life and can be resharpened and reused multiple times, making them highly cost-effective in the long run despite a higher initial purchase price.
How do I choose between a computer-controlled hot saw and a cold saw?
Choose a cold saw if your application demands high precision (such as automotive or medical tubing) and you want to eliminate secondary deburring steps. Choose a computerized hot saw if you require the lowest initial machinery investment and have low requirements for the visual appearance of the pipe ends.
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