No DramaBuyer guide · Metal & CNC
A decoiler straightener feeder only works as part of your press line, so the question is not its own specification but whether it straightens your coil flat and feeds the right length in step with your press, every stroke.
01
Width, thickness and yield strength together. The number and diameter of straightening rolls decide how thick and how hard a coil it can flatten. One listing stated 0.3 to 3.2 mm; ask at your grade.
A compact unit suits thin coil and short feeds. Thick coil and long feeds usually need a loop between straightener and feeder.
Feed length accuracy at your strokes per minute, and the signals exchanged with the press: feed start, feed complete, pilot release, misfeed stop.
Maximum coil weight and inner diameter, a hold-down arm, and guards over the straightener rolls.
02
Send these with the enquiry. Without them, any number a factory gives you is a guess dressed as a quotation.
03
| Require this | A pass looks like |
|---|---|
| Feed your thickest, hardest coil at your stroke rate for an hour. | Strip flat to your spec and feed length inside your tolerance over the run. |
| Connect to a press or a signal simulator and force a misfeed. | Feeder stops the press before the next stroke. |
| Open a roll guard and press the emergency stop mid-feed. | Rolls stop at once and restart only after reset. |
04
05
A separate heavy decoiler, straightener and servo feeder with a loop.
Keep hand feeding, or a simple air feeder.
06
We name the kind of source, how many and when, and never the factory. Listed prices are asking prices, not landed cost. Where we do not hold a fact we say so: that is a GAP, not an estimate.
07
Every machine we source in this area is on the Metal & CNC page. How a project runs, stage by stage, is on how it works, and what it costs is on pricing.
Straight answers
Servo drives often match. Roll hardness, straightening results and the press interface are where they differ.
The three tests above, roll count and diameter against the offer, and servo nameplates.
A Declaration of Conformity, a technical file, and a manual in your language, plus a plan for the combined line with the press.
If you import it yourself, you are: check the documents and put your name and address on it.
Contact
Send a machine, a quotation you want checked, or a question. We reply with what we would look at first.
Sent
A person reads every message. You will hear back within one working day.
Not sent
Please email info@nodramachina.com directly and we will pick it up from there.