Nebbie firstimerookie, glad to be apart of the group, and grateful for any input, so here goes. I am looking to build a mini excavator, and I am wanting to know the correct part, that provides the 360 rotation for the boom, and also provides the hydraulics to the final drive track motors. I know that the bigger units use what is called a rotary union, which can have multiple hydraulic ports, but I wasn't sure if the mini excavators used the same thing, and is a swing motor the same thing, which can provide rotation and power the track motors also. Man I hope any of that makes since, and if not, hey constructive criticism is OK to. Thanks
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