GM2000 High Shear Colloid Mill Grinding and Dispersion Machine

The GM2000 series is particularly suitable for the production of colloidal solutions, ultra-fine suspensions, and emulsions. In addition to high rotational speed and flexibly adjustable rotor-stator gap, it operates under friction conditions, also known as wet grinding (Note: It must be wet grinding with a water content of 150% or higher). There is a wide inlet gap and a narrow outlet gap between the conical rotor and stator. During operation, the eccentric movement of the dispersion head creates vortices in the solution, thereby achieving better grinding and dispersion effects. The entire machine adopts geometrically structured grinding rotors and stators, medical-grade surface treatment, and high-quality materials, meeting diverse needs across various industries.

【Equipment Working Principle】
Under the high-speed rotation of the motor, materials directly enter the high-shear crushing zone from the inlet. Through a special crushing device, large agglomerates, sticky lumps, and clusters in the fluid are rapidly broken down. They are then drawn into the shear crushing zone, where intense friction and grinding occur due to the high-speed cutting between the rotor blades and stator blades in a very narrow working passage. Under mechanical motion and centrifugal force, the finely crushed materials are pressed back into the precision grinding zone for further grinding. The precision grinding zone is divided into three stages, with each outer stage having higher grinding precision, smaller tooth gaps, and longer linear speeds, resulting in progressively finer materials. Simultaneously, the fluid gradually extends radially in a curved path. At each stage, the direction and speed of the fluid change instantaneously, undergoing tens of millions of high-speed shearing, intense friction, extrusion grinding, and particle crushing actions per minute. After passing through the three precision grinding zones and undergoing tens of millions of high-speed shearing and grinding actions, the molecular chains of the liquid material break, particles are crushed, and liquid droplets are torn apart, achieving thorough dispersion, crushing, emulsification, homogenization, and refinement. The minimum fineness of the liquid material can reach 0.5μm.

I. Powerful Work Efficiency

1.Ultra-High Rotational Speed: This colloid mill grinder can reach speeds of up to 14,000 rpm, significantly improving efficiency compared to ordinary industrial colloid mills with speeds of 0–3,000 rpm. High-speed operation allows materials to undergo intensive processing in a short time, greatly shortening the production cycle. For example, in the food industry for producing fruit juices and jams, it quickly refines fruit pulp particles, efficiently transforming raw materials into smooth jams.

2.Precise Rotor-Stator Gap: The rotor-stator gap can be precisely adjusted to 0.2–0.3 mm, combined with a linear speed of up to 41 m/s. Materials passing through experience ultra-high shear rates, resulting in extremely intense shearing and grinding actions between the rotor and stator. This refines materials to very small particle sizes, with the minimum fineness of the liquid material reaching 0.5μm, meeting stringent requirements for product fineness. For instance, in cosmetics production, it uniformly disperses and refines various raw materials to produce skincare products with fine texture and smooth application.

3.Unique Work Chamber Design: The work chamber adopts a jacketed design, cleverly ensuring that the medium in the jacket does not come into contact with the materials. In the chemical industry, when producing temperature-sensitive products such as certain special resins, precise temperature control during material processing is achieved by circulating a suitable temperature heat or cold medium through the jacket, ensuring stable product quality.

4.Efficient Workflow: Materials enter from the inlet and first enter the high-shear crushing zone. Equipped with a special crushing device, this zone instantly breaks down large agglomerates, sticky lumps, and clusters in the fluid. The crushed materials are then drawn into the shear crushing zone. In this very narrow working passage, high-speed rotating rotor blades and stationary stator blades cut against each other at high speeds, generating intense friction and grinding effects. Subsequently, under the combined action of mechanical motion and centrifugal force, the initially crushed and refined materials are pressed back into the precision grinding zone. The precision grinding zone is divided into three stages, with progressively higher grinding precision, smaller tooth gaps, and longer linear speeds toward the outer stages. Here, materials undergo tens of millions of high-speed shearing, intense friction, extrusion grinding, and particle crushing actions, thoroughly achieving dispersion, crushing, emulsification, homogenization, and refinement.

II. High-Quality Structural Design

1.Unique Rotor-Stator Structure: The rotor and stator are meticulously designed into conical shapes with finely graded three-stage serrated protrusions and grooves. This special structural design ensures that materials experience more complex and intense shearing and grinding actions when passing through the rotor-stator gap, significantly enhancing the grinding effect. Additionally, the stator can be infinitely adjusted to the desired distance from the rotor, allowing flexible and precise adjustment of the rotor-stator gap based on the characteristics of different materials and processing requirements to achieve optimal processing results.

2.Reasonable Tooth Depth: The tooth depth ranges from 2.7 mm at the beginning to 0.7 mm at the end, covering a wide span. This broad range of tooth depths means it can handle materials with extremely wide particle size distributions. Whether processing coarse-grained materials like pigments or extremely fine materials like nanomaterial slurries, the GM2000 series handles them with ease, demonstrating strong versatility.

3.Scientific Groove Design: The grooves adopt a helical tooth structure, with each grinding head having different groove depths. The flow channel volume of the helical teeth decreases from top to bottom. This unique design ensures that materials experience varying degrees of shearing and extrusion at different depths and flow channel spaces during passage, further improving grinding uniformity and efficiency while ensuring consistent product quality.

III. Stable and Reliable Operation

1.Vertical Split Structure: The GM2000 series adopts a vertical split structure, ensuring that the精密 components inside the machine remain stable during operation. Practical tests show that the operating noise is below 73 dB, providing a relatively quiet production environment while reducing adverse effects of vibration and noise on the equipment itself and the surrounding work environment.

2.Advanced Sealing Technology: It uses German Burgmann double mechanical seals, which offer extremely high sealing performance. Simultaneously, cooling the sealing parts with a cold medium significantly reduces the risk of seal damage due to high temperatures, minimizing the probability of leakage and ensuring stable 24-hour continuous operation. In industries with high demands for production continuity, such as chemicals and pharmaceuticals, it effectively ensures smooth production processes, avoiding production interruptions due to equipment failures and saving substantial time and costs.

3.High-Quality Material Selection: The entire machine adopts geometrically structured grinding rotors and stators made from high-quality materials. The parts in contact with materials are specially made of 316L stainless steel, which offers excellent corrosion resistance, adapts to the processing of various corrosive materials, and is non-toxic and harmless, complying with strict national hygiene standards. In industries such as food and pharmaceuticals, it ensures products remain uncontaminated, safeguarding consumer health and safety. Moreover, the high-quality materials significantly improve the equipment's wear resistance, extending its service life and reducing maintenance and replacement costs.

Colloid mills are widely used in various fields, mainly including the following aspects1:

·Food Industry: Can be used for processing raw materials like aloe vera, pollen wall breaking, pineapple, sesame, etc., as well as producing fruit teas, ice cream, mooncake fillings, fruit milk, jams, juices, etc. It is also suitable for soybean products like soy sauce, bean paste, peanut milk, protein milk, soy milk, etc., dairy products, malted milk, flavor enhancers, etc., and for emulsifying animal proteins like chicken bone paste, emulsified pork skin, and other animal skins.

·Chemical Industry: Commonly used in the production of paints, pigments, dyes, coatings, oils, lubricants, diesel, petroleum catalysts, emulsified asphalt, modified asphalt, etc. It can also process products like adhesive pastes, detergents, plastics, fiberglass raw materials, leather, etc.

·Medical Industry: Can be used for preparing various ointments, oral liquids, injections, intravenous drips, formulations, emulsions, veterinary drugs, etc. It is also suitable for producing fish liver oil, pollen, royal jelly, vaccines, syrups, nutritional liquids, traditional Chinese medicines, etc.

·Fine Daily Chemical Industry: Widely used in the field of daily cosmetics and hygiene products, such as shower gels, soaps, creams, toothpaste, detergents, shampoo concentrates, shoe polish, etc.

·Other Industries: In the environmental protection and energy-saving field, it can be used for preparing coal flotation agents; in the new materials industry, it can process nanomaterials like lithium battery anode and cathode materials. Additionally, it is applied in scientific research experiments in universities and research institutions, as well as in the textile industry, paper industry, biochemical engineering, etc.

GM2000 Series Parameters: