SIB, Nr. 2010-1 - Indication of higher maximum load-bearing capacity on new tools
WILA New Standard tools delivered from now on, will indicate a higher maximum load-bearing capacity than was the case in the past. This could lead to some misunderstanding.
Until recently, when the maximum load-bearing capacity was given, one mainly looked at the application of the tools, which for example, meant up to a maximum of 40 T/metre for most of the smaller V-openings. Furthermore the maximum load-bearing capacity of our various clamping systems was also looked at on the basis of the lowest permissible load; this lead, for example, to a maximum of 160 T/metre for various top tools. Moreover, a very wide margin of safety was maintained.
In our most recent product documentation, the Press Brake Productivity Catalog 2010, the permissible load-bearing capacity per metre has been adapted for a number of (mainly -Single V) tools. As a result of this adaptation the actual values are now reflected which will, of course, still keep account of a sound and substantiated margin of safety. For some OZU’s this has lead to some absolutely spectacular adaptations!
This decision was taken for a number of reasons. In common practice in the market, it seemed that tools (from other suppliers) with a higher permissible tonnage per metre, were more or less automatically also ascribed as having higher qualities.
It is also a fact that WILA doesn't want to thwart the application of its tools in borderline cases by a permissible tonnage per metre that has been kept 'artificially' low. The inscription of all New Standard bottom tools that are still to be manufactured, will be adapted to this effect (roughly from May 2010). Due to the extensive size of the product range – having an extremely varied turnover rate – as well as their current stock supplies, it will still take quite a while before the tools with the 'old' inscription have been delivered.
Naturally - nothing on the tools themselves has changed! You may therefore assume that the maximum load abilities currently indicated are fully applicable to all the tools of the same model that have previously been delivered.
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