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The three roller machine is open grinding, and the sand mill is sealed grinding. The three roller machine is used for grinding high viscosity materials, but its disadvantage is that it is highly volatile and easy to crust. The sand mill is suitable for wet grinding of medium and high viscosity, with a wide range of applications and high production capacity.

Sand mill: sand mill, also known as bead mill, is mainly used for wet grinding of chemical liquid products. It can be divided into horizontal sand mill, basket sand mill, vertical sand mill, etc. according to its performance. It is mainly composed of machine body, grinding cylinder, sanding disc (paddle), grinding medium, motor and feeding pump. The feeding speed is controlled by the feeding pump. The grinding medium of the equipment is generally divided into zirconia beads, glass beads, zirconium silicate beads, etc. At present, the sand mill is a grinding equipment with wide adaptability and high efficiency of materials. The grinding cavity is narrow, the clearance of the paddle is small, and the grinding energy is dense. With the high-performance cooling system and automatic control system, it can realize the continuous processing and continuous discharge of materials, which greatly improves the production efficiency.

Application: compared with ball mill, roller mill, colloid mill and other grinding equipment, sand mill has the advantages of high production efficiency, strong continuity, low cost and high product fineness. The process conditions vary greatly, and the fineness requirements can be adjusted and classified by adding or subtracting grinding media appropriately. Generally, there are vertical sand mills, horizontal sand mills, basket sand mills, double cone rod sand mills, and nano horizontal sand mills. Except that the vertical sand mills use ordinary 2-3/3-4mm glass beads, other equipment uses 0.8-2.4mm zirconia beads.

Three roll grinder: three roll grinder is referred to as three roll grinder for short. Three roll grinder can be divided into experimental three roll grinder and production three roll grinder. The three roll grinder is suitable for the manufacture of paints, inks, pigments, plastics and other pastes.

Working principle of three roll grinder: the three roll grinder achieves the grinding effect through mutual extrusion of the surfaces of three horizontal rollers and friction at different speeds. Three roll grinder is an effective grinding and dispersion equipment for high viscosity materials.

Working principle: the grinding effect is achieved by mutual extrusion of the surfaces of three horizontal rollers and friction at different speeds. The roller of the three roll grinder is made of chilled alloy cast iron by centrifugal casting.

Features: three roll grinder is an effective grinding and dispersion equipment for high viscosity materials. It is mainly used for grinding various liquid pastes and paste materials such as paints, inks, pigments, plastics, cosmetics, soap, ceramics, rubber, etc. Of course, the prices between them vary according to the specifications!