Long reach excavators should not be confused with high reach vehicles (a common mistake.) Long reach machines are best used for dredging because the long reach arm can remove a lot of material underwater while the vehicle itself is kept away from the water. The reason these are specifically used is because they have a large radius that other forms of excavator don't have. For the full range of used long reach excavators check this category on the Totallyplant.com on a regular basis to find the ideal vehicle to suit your particular needs.