This can be due to various reasons: with plastic strapping, it can be due to a too long welding time and /or high welding temperature. This is easy to adjust via the touch panel in the settings.
In the case of steel strapping, rips may be due to the use of a faulty seal. If you are not sure which seal fits and is suitable for your strapping, please do not hesitate to contact us.
It may also be that the punch/crimp mechanism is worn out. In that case, we recommend service or repair by our strapping specialists.