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Used erosion or new Ecut ?

These could be the expressions of those who bought a Used Wire Erosion instead of an Ecut.

The irony is evident, but some simple considerations make the images very plausible.

The following table, allows to compare, in a single and synthetic given the reason.

For wire erosion are considered: wire, distilled water, ion exchange resins, filter cartridges, wear parts. The annual maintenance costs have been calculated as if the machine were new, while the risk with a used machine is much higher, and at higher costs.

For Ecut are considered: Wire, liquid/sap to be emulsified with normal water, wear parts, and routine maintenance. (practically non-existent for several years on new machine)
It is evident that considering a use of 3000 hours, (quite low value for an erosion, machine that operates day and night), the difference in cost of management is over 10,000 € / year.

Other factors must be considered:

1) The management of wire erosion is much more complex and demanding than the management of Ecut.

2) Ecut is more precise than used wire erosion.

3) The smallest Ecut cuts up to 300mm thickness. No wire erosion that cuts this thickness can cost, even if used, less than a new Ecut,

4) Ecut allows to overlap pieces to be cut, without suffering from the barrel effect.

5) Ecut does not work with an immersion tank, so it is possible to cut even large pieces.

6) Ecut technology does not cause surface hardening, nor does it trigger microcracks, allowing it to be used even in sectors where normal wire erosion is prohibited. ( Aviation ).

7) At the price of any used wire erosion, (in good condition), it is possible to buy an Ecut with the possibility of cutting, X,Y,Z, considerably higher.

Take the order!

Perfect and impeccable.

In front of a piece of this kind (about 60×40 mm x 4mm thickness) any good mechanic stops to reflect.

The first question you ask concerns the mind of those who designed it!

Once you have ascertained that this is the way to do it, you begin to think about how to do it. Work center, broach for the teeth of the hole, teeth of the half-corona,.. If then the material is difficult, or must be treated the matter becomes even more complicated.

In the end, only wire erosion remains. If you already have it, that’s fine, otherwise with traditional processes it’s a nice headache,

But with wire erosion, the cost is still high. The removal times are the same as they are, the placing times, with the need to respect guidelines and phases, too. If we put too many pieces one on top of the other to gain some time, there is the trap of the barrel effect, so the precision goes to be blessed …

If your competitor has an E.cut, he’ll almost certainly take the order!

With E.cut you can easily “pack” about fifty pieces and cut them all in one go.
Since there is no beating effect, from the first to the last will be in the couple of hundredths of tolerance.

Add that the hourly cost of exercise is more than ten times lower, so even if you go over it again to bring the roughness up to 0.8 Ra, the final cost will still be extremely low.

I

I’ll cost you.

If you make your customer pay half of what it would cost him with a conventional wire, he’s very happy, and you still earn a lot of money!

Probably that’s why those who own an E.cut don’t care much about letting them know!