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Air Classifier
Air classifiers are industrial machines that utilize air flow to precisely separate materials by size, shape, and density. They are ideal for various applications where traditional methods like sieving are impractical due to fine particle size or high processing volume.
Our air classifiers offer several advantages:
- Sharp separations: Achieve narrow particle size distributions for optimal product quality.
- Dry processing: Eliminate the need for water, reducing environmental impact and operating costs.
- Versatility: Handle a wide range of materials, from powders and plastics to minerals and aggregates.
- Scalability: Accommodate large processing capacities for continuous industrial production.
Air classifiers are widely used in industries like:
- Food processing: Separating flour fractions, cocoa powder, spices, and other dry ingredients.
- Plastics: Classifying plastic resins, pellets, and flakes for recycling or manufacturing.
- Chemicals: Segregating pigments, catalysts, and pharmaceutical powders for precise formulation.
- Building materials: Sorting sand, cement, and other aggregates for construction applications.
- Recycling: Separating mixed materials by size and density for efficient recycling processes.
Let us help you select the ideal air classifier for your specific needs. Our team of experts can guide you through the selection process and ensure you achieve the desired results.
Increase your process efficiency and product quality with air classification technology. Contact us today!
DP Air Classifier Mill ACM Standard Type
Product Brochure
| Type Of Machine | Air Classifier Mill |
| Power Source | Electric |
| Brand | DP Pulveriser |
| Machine Capacity(kg/hr) | 100 kg/hr |
| Material | Stainless Steel or Carbon Steel lined with Ceramic Liners/ Tungsten Carbide |
| Usage/Application | Industrial |
| Capacity | 50 kg/hr to 5000 kg/hr |
| Automation Grade | Fully Automatic |
| Power | 0.73 kw - 1118 kw |
| Product Type | DP Pulveriser |
| Classification Method | Air |
| Country of Origin | Made in India |
| Throughput Capacity | 50 kg/hr to 1000 kg/hr |
| Output Fineness | 8-40 microns |
The DP® Air Classifier Mill is a high-speed, screenless hammer mill with an integrated air classifier. It combines impact grinding and dynamic classification in a compact unit for precise 8–40 micron particle reduction. The system ensures sharp top cut control, narrow distribution, and reliable performance—even for heat-sensitive, medium-hard materials.
The DP® Air Classifier Mill integrates continuous grinding and dynamic classification into a single compact unit. The feed material enters through the Feed Hopper (1), where a Screw Feeder (2) delivers it at a regulated rate into the Grinding Zone (3). Inside this zone, a high-speed Rotor Disc (4) fitted with Hammers (5) accelerates the material outward. The Serrated Liner (6), positioned along the chamber wall, enhances impact by deflecting the material back into the hammer path, resulting in efficient size reduction through repeated collisions.
As the particles are ground, a stream of air introduced through the Air Inlet (7) assists in carrying the material upward into the Classification Zone (8). Here, the air/material mixture passes through a Baffle Ring (9) and reaches the rotating Classifier Rotor, housed within the Classifier Shaft & Bearing Housing Assembly (10). Particles of the desired size pass through the classifier and exit with the air stream via the Fine Product & Air Outlet (11), while oversized particles are rejected and returned to the grinding zone for further reduction. This internal loop ensures consistent fine product quality with a sharp particle size cutoff.
The mixture of fine product and air is then conveyed through external piping to a cyclonic separator, where the product is separated and collected. Any remaining ultrafine dust is carried further to a pulse-jet dust collector, ensuring clean and dust-free air discharge. The system also include a conveying blower to maintain controlled airflow. Overall, the integrated design allows for precise particle size control, energy-efficient grinding, and dust-free operation in a compact and maintainable layout.
Features & Benefits- Integrated grinding and dynamic classification in one compact unit
- High-speed rotor with impact hammers or pins
- Stepless easy online particle size adjustment and control
- Narrow particle size distribution
- Suitable for fine and ultrafine particle size up to 8 microns
- Serrated liner for enhanced grinding efficiency
- Suitable for combined grinding and drying
- Construction Materials: Available in carbon steel, stainless steel (SS304, SS316, SS316L), or custom-engineered configurations to meet specific product or regulatory requirements.
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- Pressure Shock Resistance: Can be designed to withstand pressures up to PSR 11 Bar.
- Cooling Technology: Optional integrated airflow cooling or water jacket cooling ensures safe handling of heat-sensitive materials, preserving product quality.
- Hammer Options: Multiple hammer configurations are available (flat, serrated, pin type), in various wear-resistant materials, based on grinding characteristics.
- Classifier Options: Available with dynamic classifier designs featuring variable speeds and material options (carbon steel, hardened steel, ceramics) for precise top-cut control and durability.
- Safety Mechanisms: Can be equipped with vibration sensors, temperature sensors, and safety interlocks to ensure operational safety and equipment protection.
- Combined Functionality: Option for combined drying and pulverising processes.
Air Classifier Machine
Minimum Order Quantity: 1 Piece
Product Brochure
| Capacity | 500 kg/hr |
| Automation Grade | Semi Automatic |
| Capacity(Kg) | 100 |
| Country of Origin | Made in India |
The DP® Aerova Air Classifier is high efficiency air classifier suitable for classifying dry materials in range from 1 - 150 microns designed for throughputs of 5 kgs per hour to 10 tonnes per hour. Aerova classifier is forced-vortex unit which can be operated as stand-alone system or within the milling system.
Material can be fed over wide range of variation and this unit can give accurate product output with required fineness.
The Aerova Classifier is prominently used in classifying the particles in the minerals, chemicals, metal powders, ceramics, plastic and recycling industries.
Principle of Operation
DP Aerova classifiers classifies the particles based on the principle of opposing forces, centrifugal and drag force. As product enters tangentially into the air & material inlet, all the particles are subjected to drag force by the air conveying fan. This drag force varies as it depends upon the size and density of each particles. When the drag force is higher than the centrifugal force caused bythe classifying wheel, particle passes through the classifi[1]er wheel to the fine product outlet. Coarse particles are carried away by the centrifugal force due to inertia and collected at the coarse outlet through conical chamber. Cutpoint is determined when the forces are balanced in which particles passes with 50% chances. Cutpoint can be varied by varying the speed of the classifier wheel. Smaller cutpoints can be achieved efficiently with the help of secondary air inlet as it controls the amount of air in the chamber. By varying the speed of the conveying fan and classifier speed wide range of particle cutpoint is achieved.
Air purging is provided for the prevention of coarse particle to enter into the fine product with the help of compressed air for efficient sealing. Diffirent designs of classifying wheels are also available based on the requirement.
Features & Benefits
· High-efficiency air classifier
· Particle size cut-point from 1-150 microns
· Precise on-stream control of cut-point by variation of rotor speed and airflow
· Low power consumption and Robust construction and build quality for long service life
· Adjustable secondary air-wash system for optimisation of classification efficiency
· Operates under negative pressure promoting dust-free environment
· Can be supplied with a variety of liners and coatings to improve wear resistance
Options & Accessories
· Machine Contact and Non-Contact Parts available in CastIron, Carbon Steel, 304, 304L, 316, 316L.
· The internal surfaces of the classifier canbe lined with ceramic tiles of various grades.
· Wearable parts available in hard materials like Forged Alloy Steel, Welded Hard Facing, Hard Alloy Steel Casting, CastIron.
· The classifying wheel can also be made of wear resistant materials such as ceramic or silicon carbide.