Frequently Asked Questions
Double Notching 90° "T" Joints on Pipe and Tubing
I need to notch more than one size tubing, how many Arc-Twin units do I need?
You can notch MANY different sizes with ONE Arc-Twin die set type tool or self-contained machine, up to the maximum OD and wall thickness shown. Changeover time to swap a set of Arc-Twin inserts is typically 15 minutes or so. Our die set tools are designed so you can perform this changeover without removing the die set from your press (follow all appropriate safety & lockout procedures before performing changeover).
If you have two frequent notching applications, we offer an Arc-Twin Tandem Die Set or Self-Contained machine that accepts TWO sets of tooling, allowing you to install two different sets of tooling.
If I purchase the Arc-Twin Tandem, can I operate both sets of tooling at the same time?
Yes! You can select the left or right hand set of tooling, or if desired use both sets simultaneously. We have customers who have identical tooling installed into Tandem Units and by using both sides with each press stroke, double their productivity.
Since the Arc-Twin notches both walls at once, how do I create a notch and a drainhole, but with the drainhole on one side only?
We can custom make tooling we call "sectional inserts". We create a two piece punch, that is asymmetrical, once side creates a notch and the other a notch + drainhole. Although a more expensive design, this will create the drainhole only on one wall, yet do it all in one press stroke!
I've heard that the Arc-Twin tooling lasts twice as long, why is that?
Our Arc-Fit tooling notches one tube wall at a time. To complete one tube end requires a total of two cuts. With our Arc-Twin tooling, the punch and die have two cutting edges (at "3:00" and "9:00"). As the punch moves sideways, it cuts each wall of the tube within the same stroke. Each cutting edge of the punch has only cut once. In other words, 10,000 tube ends cut with an Arc-Fit tool will expose the one face of the punch & die to 20,000 cuts. The same quantity of tubes cut with our Arc-Twin will only expose each side of the punch & die to 10,000 cuts. So you'll be sharpening the tooling half as frequently with our Arc-Twin tooling and you'll be completing your notched tube ends twice as fast!
How do I sharpen Arc-Twin tooling?
Although we include sharpening instructions in the manual that comes with your Arc-Twin equipment, most customers prefer to send their tooling to Vogel for sharpening. Note that both the Punch and Die are cutting edges, like the two halves of a scissors. Please see our page on sharpening for instructions on returning your tools to Vogel for sharpening.
What do the numbers stamped into my tooling mean?
We assign an Assembly number that is marked into the Punch, Bushing and Die of your Arc-Twin tooling. This number begins with the letter "T" and is followed by three or four digits. All three parts have the same number (Note if your assembly was custom made, we may use a stock bushing and mark the unique assembly number only on the Punch & Die). Because all three parts have the same number, it is easy to make sure you are using the correct parts together. When ordering replacements, be sure to specify whether you wish a new Assembly (three pieces) or wish to order individual parts only (just a punch, for example). If you have several Vogel tools and are not sure of what sizes they are for, you can contact us with the markings on your tool.
If I buy the Arc-Twin die set unit and eventually upgrade to the self-contained machine, do I need different tooling?
No. The Arc-Twin die set units and machines take the same tooling, as long as you are purchasing equipment with the same maximum capacity. I.E. our 101DS unit and 101HPP machine take the same tooling.
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