With the continuous advancement of technology, various industries have increasingly high requirements for materials, finer particles, higher uniformity of product particles, and higher production efficiency. Although existing sand mill manufacturers have optimized their product design, manufacturing, and processes, the existing horizontal sand mills inevitably face five major challenges.
In order to solve these five major problems, we have developed the SP series vertical inorganic sealed mesh free sand grinder with a new design concept and bold innovative attempts.

1. Separate NetEase blockage;
2. Mechanical seals are prone to leakage and damage;
3. Difficult to achieve ultrafine bead grinding;
4. Uneven distribution of product particles;
5. The grinding efficiency is not high enough.


1. Non sieve centrifugal separation;
2. The problem of inorganic seal leakage and damage;
3. Ultra fine grinding medium;
4. Graded separation and grinding function;
5. High grinding efficiency.

Batteries/electronic materials, inkjet, ceramics, minerals, photovoltaics, dyes, papermaking, rubber, cosmetics, biology, medicine, traditional Chinese medicine, pesticides, fertilizers, pigments, chemicals, coatings, inks, etc.

Our company's independently produced 0.5L-100L sieve free and shaft sealed sand mill is a specialized machinery for the preparation of nanomaterials. The rotor structure of this sand mill adopts a turbine pin type structure, which greatly enhances the shear force, allowing the material to be cut and dispersed at high speed in the grinding chamber, thus quickly becoming finer, and the grinding fineness can reach sub micron or even nanometer level.
This machine adopts a sieve free centrifugal separation discharge method, which enables this sand mill to use zirconia beads with diameters as small as 0.1-0.2mm, thereby enhancing the grinding efficiency and making the physical particles finer, more uniform, and with a uniform particle size distribution.
The unique design and construction of this model concentrates the main kinetic energy of the entire grinding process on grinding large particle materials, and the grinding efficiency is more than twice that of traditional horizontal sand mills! The vertical nano sand mill is an ultrafine nano sand mill that integrates grinding and dispersion, especially suitable for the production and grinding of small batches and multiple varieties of products. Over the years, it has been successfully applied in various fields such as chemical engineering and pigments.

The rotating parts of the grinder are single axis structures, with holes drilled in the middle for material feeding.
When grinding, the stirring shaft can drive the grinding medium in the entire grinding cylinder, and the high-efficiency centrifugal separator can effectively separate the product and grinding medium, ensuring the good operation of the machine for high viscosity products. According to the specific requirements of the product, the machine can be designed according to different materials (such as polyurethane, polymer, ceramic, etc.), and contains multiple double end mechanical seals.

1. Rotor structure: turbine pin;
2. Grinding chamber components: ceramic/alloy steel/polyurethane;
3. Grinding fineness: micron level, submicron level, nanometer level;
4. Grinding medium: Φ0.1-1.2mm， Can achieve ultrafine grinding of microbeads;
5. Discharge method: Non sieve centrifugal separation, smooth discharge without blockage, no worries about cleaning the separation device;
6. Implement graded separation and graded grinding; Fine particulate materials are discharged and circulated outside the grinding chamber, and are ground very few times to prevent over grinding; Coarse particle materials are repeatedly ground in the grinding chamber and quickly become finer; The product has fine particle size, uniform particle size, and uniform particle size distribution;
7. The entire grinding process is mainly powered by grinding large particles, and the grinding efficiency is increased by more than 50% compared to traditional horizontal machines; High flow discharge can be controlled by adjusting the discharge temperature appropriately, which is important for temperature sensitive materials.

Model	Volume (L)	Power (KW)	Motor speed (r/min)	Flow rate (KG/h)	Bead diameter (mm)	Bead loading (vol%)
SM-1	1	5.5	1450	50-100	0.1-1.2	70%
SM-3	3	7.5	1450	150-250	0.1-1.2	70%
SM-7	7	11	1450	300-400	0.1-1.2	70%
SM-15	15	22	1450	450-550	0.1-1.2	70%
SM-30	30	45	1450	1000-1500	0.1-1.2	70%
SM-50	50	75	960	2500-3500	0.1-1.2	70%