| size of the channel (mm) | number of pages (80g/m2) |
| 5 | 35 |
| 7 | 60 |
| 10 | 90 |
| 13 | 120 |
| 16 | 150 |
| 20 | 190 |
| 24 | 220 |
| 28 | 260 |
| 32 | 300 |
METALBIND COVERS FROM OPUS
Soft METALBIND covers, such as O.UNIVERSAL, O.CLEAR, O.POPULAR and O.EXCLUSIVE as well as O.SUPERPLAST , can be used whenever You need to bind documents. Their format is exactly A4, that is why binding is very easy. You just place the documents beetwen the covers and use O.SIMPLE CHANNEL 297 mm.
However to be sure that your documentation has really perfect, extraordinary and elegant look use one of our hard covers (O.HARD COVER classic, O.HARD COVER business) or elegant soft covers (O.FLEXI COVER, O.CLEAR COVER classic). The covers of this group have format A4+, which means that the cover is 3,5 mm wider and 7 mm longer than the standard A4. Format A4+ enables You to put the paper in the middle of cover, leaving 3,5 mm distance from each edge. That is why A4+ covers should be used with the longer channel 304 mm. Depending on the cover that you choose, you can use two sorts of channel 304 mm - O. SIMPLE CHANNEL and O.CHANNEL classic.
FORMAT | COVER/CHANNEL | O.SIMPLE CHANNEL 297 mm | O.SIMPLE CHANNEL 304 mm | O.CHANNEL classic 304 mm |
A4 | O.UNIVERSAL | + |
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A4 | O.CLEAR | + |
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A4 | O.POPULAR | + |
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A4 | O.EXCLUSIVE | + |
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A4 | O.SUPERPLAST | + |
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A4+ | O.HARD COVER BUSINESS | + | ||
A4+ | O.FLEXI COVER | + | ||
A4+ | O.HARD COVER classic | + | ||
A4+ | O.CLEAR COVER classic | + |
(+) recomended to be used together
