The robust traction eye is a steel clamp assembled underneath the robust T300 or T500 chipper to couple a trailer. In this way the wood chips are blown directly into the trailer, saving time and effort. By changing the position of the ejection cap till, the chips can be ejected till 8 or 9 meter. With other words, the trailer is not suspended at the chipper, but at the clamp! The lifting kit is converted into the coupling between tractor and trailer, and not the chipper itself!