To date, no generally applicable test method has been established for this market. The companies within the CHS group work with a usual force meter with minimum 10.000 Hz frequency of data sampling to determine the tensile forces of the cable tie tools and to guarantee the quality of the cable tie processing tools. It is more difficult to test cable tie tools than would appear at first glance. It is of supreme importance to comply with a standard Lised test procedure and consistent test conditions. This means for example the size and not only the cross-section of the cable ties, but also the water content of the cable tie. A test using different cable ties and/or different conditioning can easily result in two different values.
In general, the speed of cut off, the position of the tool with respect to the cable tie, the condition of the wearing parts in the tool and the state of the cable tie play a fundamental role in the determination of tensile forces. Therefore we must point out that any values we provide can only ever be regarded as guide values for your information. The values cannot be transferred into practice like for like. In our user instructions, we specify an adjustment range for each type of cable tie. If tension values must be documented or comply with a specification, we recommend that you adjust them with the aid of a force meter. Also, as a guideline, half the minimum holding strength of the cable tie should be used as tensile force.
The minimum tensile strength (also referred to as minimum unlocking strength) is the least force which the cable tie can withstand before it tears or stretches.This strength is determined using a threaded cable tie, hence the following formula should be used for guidance as to the correct tensile force of the tool
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