A support gate device that allows iron tubes to be loaded efficiently into a pipe holding bin of a directional drilling machine. The support gate device is a rectangular cartridge the houses a swiveling gate. The swiveling gate has a stop plate and a spring. The support gate device attaches to an end of a horizontal bar of the directional drilling machine. The directional drilling machine has a pair of horizontal bars that are linearly opposed to each other that lead into the pipe holding bin. A pair of support gate devices are installed on the horizontal bars of the directional drilling machine.