Profile: Vortex Mixing Technology Co., Limited is a manufacturer of powder mixing machinery. We also offer ribbon blenders, paddles, plough blenders, rotary batch mixers and double cone blenders. Conical screw mixer are made using steel, stainless steel, hastelloy and other alloys. The basic design consists of two cylindrical screws located at the vessel wall that conveys product from the bottom of the conical vessel to the product surface. The screw is attached to an arm which rotates around the perimeter of the vessel causing convective mixing and shear. The particles at the surface opposite the screw accelerate downward in a mass flow by gravity as the diameter of the vessel decreases. The three actions result in a unique three dimensional mixing action.