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| Seals |
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| Steel Strapping |
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| The choice of a specific seal is often most strongly influenced by the type of tool or machine selected to apply it. |
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| Five standard seal types |
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| Snap-on seals |
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| Placed over the overlapping strap ends either during or after tensioning the strapping. Eliminates pre-threading. Speeds the strapping operation. |
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| Thread-on seals |
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| Must be threaded over the overlapping strap ends before the tensioning tool is applied. Generally used on bales, bundles
and the larger strap sizes. |
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| Open-flange seals |
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| Heavy-duty version of the snap-on. Requires no pre-threading. |
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| Push-type seals |
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| Used where strap is tensioned by butting the nose of the tensioner against the seal. Overlapping flanges withstand the higher stress. |
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| Nestack seals |
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| Held together by interlocking nibs. This Signode development permits loading partial stacks into magazines of
seal feed combination tools and power strapping machines |
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| Microgrip seals |
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| For severe impact applications using waxed strapping. Microgrip seals are coated inside with a high-friction grit which bites through the wax to provide maximum holding power. |
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