Less than 6 hours total use on a near-new GS5000 Gold Stryker Impact hammer mill. Turns 3-4" rock to -100 mesh on first pass to release the gold in your host material. Unit is Located in Northern Colorado front range. Still on original shipping pallet with Honda gas engine for power. Asking $5900 and is now almost $8k to purchase a new unit. Contact Steve at 1-970-371-9381 cell.