Cut-Length Drift and Saw Stoppage
Buyers order fixed lengths and reject short or long pieces, so the flying saw must cut accurately while the line runs. Saw systems that lose sync with line speed produce off-length tube, and slow reset after each cut caps throughput.
Why Fixed-Length Cutting Drifts
A saw that does not track line speed cuts while the tube keeps moving, so length varies with speed changes. Slow reset between cuts also forces the line to pause, and mechanical backlash accumulates error over a full production shift.
The ZY20 Flying Saw Tube Mill Solution
A microcomputer-controlled flying saw tracks line speed and synchronizes each cut, holding fixed lengths of 4-8m to ±3mm.
Rapid reset returns the saw to the start position quickly, so the line runs continuously at up to 90 m/min without waiting on the saw.
The Turk head straightens the tube and feeds it accurately into the saw, further improving cut-length consistency.
Technical Specifications of the ZY20 Tube Mill
| Parameter | Specification |
|---|
| Tube outside diameter | φ10–26 mm |
| Wall thickness | 0.4–1.5 mm |
| Rated production speed | up to 90 m/min |
| Raw material | HR / CR low-carbon steel, galvanized steel |
| HF welder power | 100 kW solid-state |
| Forming stands | 5 rough + 3 finish |
| Sizing stands | 6 horizontal + 6 vertical |
| Leveling rolls | 7-roll precision leveler |
| Cut length / precision | 4–8 m, ±3 mm |
| Coolant flow | ≥10 t/h spray + overflow pool |
| Roll shaft material | 42CrMo quenched & tempered + HF hardened |
Complete Continuous Production Process
Every ZY20 runs one continuous flow from coil to finished cut tube. An uncoiler feeds strip through a 7-roll precision leveler that removes coil-set, then double-radius forming shapes it in 5 rough and 3 finish stands without edge wave. A 100 kW solid-state HF welder fuses the seam under squeeze pressure with a dedicated seam guide, and an automatic outside-burr unit clears the bead immediately. ≥10 t/h spray plus overflow-pool cooling locks the shape, the 6-horizontal + 6-vertical sizing train sets the diameter, and a 4-roll Turk head straightens the tube before the microcomputer flying saw cuts 4–8m lengths to ±3mm. Overload-protected stands and 42CrMo hardened shafts keep the whole line stable over long runs.
Where the ZY20 Flying Saw Tube Mill Is Applied
Tube producers supplying fixed-length orders for furniture, structural and precision applications where ±3mm length accuracy is required.
How to Select a Flying Saw Tube Mill
Confirm your length range (4-8m on the ZY20) and accuracy (±3mm), and check that the saw is microcomputer-controlled for line-speed tracking and rapid reset.
Installation, Support and After-Sales
The ZY20 ships as a turnkey package with layout and foundation drawings so you can prepare the site before delivery. Engineer-led on-site installation and commissioning bring the line to rated output, with operator training to hand over a running mill. A one-year warranty with spare-parts support protects the investment, and because the line accepts HR, CR and galvanized coil, you can adapt to changing material costs and market demand without re-tooling.
Frequently Asked Questions About the ZY20 Flying Saw Tube Mill
What cut accuracy does the ZY20 achieve?
±3mm over 4-8m fixed lengths.
How does the saw stay accurate at speed?
A microcomputer tracks line speed for synchronized cutting with rapid reset.
Does the saw slow the line?
No — rapid reset keeps the line running at up to 90 m/min.
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