Mining or construction vehicle

A boom extending in a first direction, via a first and a second rotation device, the boom is configured to connect to a mining or construction device arranged on a mounting device arranged in connection to a free end of said boom, the first rotation device being arranged to provide a rotation around a first axis that is substantially parallel to the first direction, and the second rotation device being arranged to provide a rotation around a second axis that is arranged at an angle with respect to the first axis, wherein an angle unit with a pivot point is arranged between said first and second rotation devices to enable an angular movement of said second axis of said second rotation device with respect to said first axis of said first rotation device;

• wherein the angle unit comprises a first part and a second part, the first and second parts of the angle unit being connected to each other in the pivot point;
• wherein the first rotation device is connected to the first part of the angle unit and to the free end of said boom, the second rotation device is connected to the second part of the angle unit and to the mounting device;
• wherein the first and second parts of the angle unit enclose at least partly the first and second rotation devices respectively;
• wherein a pressure cylinder is arranged to provide the angular movement of said second axis of said second rotation device with respect to said first axis of said first rotation device around said pivot point;
• and
• wherein a first end of the pressure cylinder is connected to the first part of the angle unit and an opposite second end of the pressure cylinder is connected to the second part of the angle unit.