Original Assignee Chapman Jr Marion R Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US06/285,527 Inventor Marion R. Google Patents Suction dredge cutter headĭownload PDF Info Publication number US4365427A US4365427A US06/285,527 US28552781A US4365427A US 4365427 A US4365427 A US 4365427A US 28552781 A US28552781 A US 28552781A US 4365427 A US4365427 A US 4365427A Authority US United States Prior art keywords head crusher cutter head suction mouth Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Mats or matting systems can be used to traverse over and within the lake, pond, or wetland without sinking in the mud.- Google Patents US4365427A - Suction dredge cutter head Long reach excavators are not as efficient or stable with grading projects and standard earth moving so they are a specialized piece that you typically see within a certain type of project. Furthermore, the excavator can place wet, sloppy sediment away from the machine so that you can continue to work while sediment dewaters off to the side. Often the excavator can load or dispose of material without having to reposition. The advantage is that you can move sediment over 100’ in distance in one rotation, which is impressive. It also allows you to relay or place material the same distance from the machine. The extended boom allows the operator to remove sediment from the stable shoreline up to 70’ out into the lake. Larger excavators are the most commonly types and extend a standard range boom from 20-30’ to 50-70’. Typically, small mini and midi excavators can extend the reach along the ground from 12-15’ to 15-25’. The reach of a standard excavator is doubled or tripled with a long reach boom. Long reach excavators are fitted with a longer boom and smaller bucket to enable it to reach a further distance. The most common type is the long reach excavator. River Sand incorporates the use of several types of specialized excavators for its mechanical dredging projects.
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