drum mixer The mixers are widely used in pharmaceutical, chemical, food, dye, feed, chemical fertilizer and pesticide industries and especially suitable for mixing various solid materials with large volume (100 -100L ). The mixing barrel swings while rotates so that the materials in the barrel can be fully mixed. Because the discharge port of the barrel is out of spire-vane, the mixer features quick mixing and discharging, high volume mixing capacity, as well as convenient discharging.