A fluxer for preparing analytical samples by flux fusion, comprising: a furnace assembly including a furnace chamber provided with heating elements positioned therein for heating an interior of the furnace chamber, the furnace chamber having an access opening; a sample support assembly comprising: a support frame; a crucible support having a crucible holder operatively connected to the support frame at opposite ends thereof, the crucible holder having a plurality of crucible receiving openings for receiving and supporting a plurality of crucibles, each crucible being adapted to receive a mixture of a sample and a flux material; a mold holder operatively connected to the support frame at opposite ends thereof, the mold holder having a plurality of mold receiving openings for receiving and supporting a plurality of molds, each mold being adapted to receive a fused mixture from a corresponding one of the plurality of crucibles upon rotation of the crucible holder; a secondary frame; and a retaining rod pivotally connected to the secondary frame configured to retain the crucibles within the crucible holder upon rotation of the crucible holder, wherein the secondary frame is fixed relative to the furnace chamber, and wherein the retaining rod extends above the crucible holder. a furnace assembly including a furnace chamber provided with heating elements positioned therein for heating an interior of the furnace chamber, the furnace chamber having an access opening; a sample support assembly comprising: a support frame; a crucible support having a crucible holder operatively connected to the support frame at opposite ends thereof, the crucible holder having a plurality of crucible receiving openings for receiving and supporting a plurality of crucibles, each crucible being adapted to receive a mixture of a sample and a flux material; a mold holder operatively connected to the support frame at opposite ends thereof, the mold holder having a plurality of mold receiving openings for receiving and supporting a plurality of molds, each mold being adapted to receive a fused mixture from a corresponding one of the plurality of crucibles upon rotation of the crucible holder; a secondary frame; and a retaining rod pivotally connected to the secondary frame configured to retain the crucibles within the crucible holder upon rotation of the crucible holder, wherein the secondary frame is fixed relative to the furnace chamber, and wherein the retaining rod extends above the crucible holder. a support frame; a crucible support having a crucible holder operatively connected to the support frame at opposite ends thereof, the crucible holder having a plurality of crucible receiving openings for receiving and supporting a plurality of crucibles, each crucible being adapted to receive a mixture of a sample and a flux material; a mold holder operatively connected to the support frame at opposite ends thereof, the mold holder having a plurality of mold receiving openings for receiving and supporting a plurality of molds, each mold being adapted to receive a fused mixture from a corresponding one of the plurality of crucibles upon rotation of the crucible holder; a secondary frame; and a retaining rod pivotally connected to the secondary frame configured to retain the crucibles within the crucible holder upon rotation of the crucible holder, wherein the secondary frame is fixed relative to the furnace chamber, and wherein the retaining rod extends above the crucible holder.