Slit Coil for Spiral Pipe

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SMACNA approves 28 ga on 14” diameter Spiral and smaller but fabricators use 26ga instead


Here is the feedback we’ve received that makes that understandable:

1.  The min of the Spiral Helix TF3600, the runaway top seller of Spiral Pipe Tubeformers, is .016 thickness. That’s on the heavy side of 28 ga which means if the 5.394” Slit Coil comes in closer to .015 (which it most likely will) the pipe will not form properly in the machine.
2.  There’s a lot more 26 ga (.019) being used for 5.394” which has, in turn, made it more of a commodity.  It’s stocked at high levels at most steel service centers that cater to HVAC.
 
5.394 Slit Coil for Spiral Feeding off of reel

 

Spiral Helix TF 3600 Technical Data

Diameter Range: 80 – 1600 mm (4” – 64”)

Strip Thickness:

0.4 – 1.3 mm (0.016”- 0.051”) galvanized steel
0.4 – 0.8 mm (0.016”- 0.031”) stainless steel
0.4 – 1.3 mm (0.016”- 0.051”) aluminium

Cutting System: Flying slitter

Slitter – Smooth and Noiseless Cut

Basic Machine Frequency controlled main drive:

Vertical decoiler & Run-off table
Hydraulically operated clinching roller
Hydraulically controlled drive roller pressure
Automatic length measurement system

Performance Tested / Guaranteed (duct of 3 m length):
0.5 mm (0.020”) thickness – 100 mm (4”) diameter – 195 Ducts/hour
0.7 mm (0.028”) thickness – 500 mm (20”) diameter – 60 Ducts/hour
0.9 mm (0.035”) thickness – 1250 mm (50”) diameter – 24 Ducts/hour
1.25 mm (0.049”) thickness – 1600 mm (64”) diameter – 19 Ducts/hour