The HLK-4600 camera boom arm has been designed for pipeline inspection work. Using a pair of these arms, pipelines of up to 36 can be easily inspected. Its unique design allows the camera mount to stay at the same angle through the entire 120deg of angular movement of the arm. The camera mount can be tilted through a 120deg. The arm uses Hydro-Leks standard HLK-1300 hydraulic cylinders.