Whether it's a concrete batching plant or an asphalt batching plant, both the plan and any component can be customized. SDCAD's service is beyond imagination. We look forward to hearing from you.
Contact UsPneumatic Conveyor
Conveying powders, granules and solid materials is a delicate production phase. Choosing the right conveying system for moving powders between process machineries directly affects final product quality.A pneumatic conveyor system is the safest for product convey, and the only one that avoids product contamination risk. Used across many industries, it can boost the productivity and efficiency of installed machines by up to 30%.Delfin makes complete pneumatic conveyors with loading and unloading systems for all industries.Our pneumatic conveyors have many advantages：
Pneumatic Conveyors: Diluted Phase vs Dense Phase Solutions for Dust, Grains & Solids
When it comes to efficient conveyance of dust, grains, and solids, pneumatic conveyor systems stand out as versatile solutions tailored to diverse industrial needs. Two primary configurations—diluted phase and dense phase—each offer unique advantages, ensuring optimal performance for short or long-distance transport across various applications.
ELECTRICAL PNEUMATIC CONVEYORS: Diluted Phase Conveyance
Diluted phase pneumatic conveyors are engineered for transporting dust, grains, and solids with a distinct approach: they maintain a lower product concentration in the pipes, paired with a higher air percentage compared to dense phase systems. This design enables fast, diluted product movement through the pipes using relatively low pressure, making it ideal for operations where speed is a priority.
In diluted phase conveyance, materials tend to float within the pipeline—a characteristic that makes this configuration less suitable for applications requiring product preservation or preventing material mixing. However, it excels in scenarios where rapid transport is key, with specialized solutions for both short and long distances:
Short-distance conveyors: Extremely compact single-phase units designed for efficient transport of dry, light powders. These systems offer the best value for money in the product range, perfect for tight spaces and quick material transfers.
Long-distance conveyors: Available in single-phase or three-phase options, these conveyors handle powders and granules over extended distances. Their modular component design allows for exceptional customization—including separated or integrated suction units that can be upgraded later without replacing the entire system. Multiple construction options ensure seamless integration with existing machinery, delivering top-quality conveyance tailored to specific operational needs.
CAD280e: A standout electro-pneumatic conveyor system in this category, optimized for short-distance transport of powders and grains, combining compact design with reliable performance.
PNEUMATIC CONVEYORS: Dense Phase Conveyance
Dense phase pneumatic conveyors operate on the opposite principle: they feature a high product concentration in the pipes with a lower air percentage, resulting in slower, more compact material transport. Using higher pressure, these systems create “product bundles” that move steadily through the pipeline—making them ideal for preserving product integrity and preventing demixing.
In dense phase configuration, materials move in a compact, slow manner, making this option perfect for sensitive or fragile products that require careful handling. Like their diluted phase counterparts, they offer specialized solutions for short and long distances:
Short-distance conveyors: Extremely compact units designed for efficient transport of dry, light powders. These systems balance performance and cost, providing excellent value for money in short-range applications.
Long-distance conveyors: Built to handle powders and granules over extended distances, these pneumatic conveyors prioritize customization. Their modular components—including upgradeable suction units (separated or integrated)—allow for tailored solutions that grow with your needs, avoiding the need for full system replacement. With multiple construction options, they integrate seamlessly into existing setups, ensuring top-quality conveyance for demanding operations.
CAD280p: A premier pneumatic conveyor system in this category, specialized for short-distance transport of powders and grains, emphasizing product preservation and consistent performance.
Whether your operation requires rapid diluted phase transport or gentle dense phase handling, our pneumatic conveyors deliver tailored solutions for dust, grains, and solids—ensuring efficiency, reliability, and seamless integration with your machinery.
A pneumatic conveying system is a material handling technology that uses compressed air or vacuum pressure to transport bulk materials such as cement, fly ash, and fine powder through pipelines. It is a fully enclosed system that prevents dust emission, material loss, and contamination. Pneumatic conveyors are commonly used to transfer dry bulk materials between silos, hoppers, and batching systems with high efficiency and cleanliness.
There are two main types of pneumatic conveyors — dilute phase conveying and dense phase conveying.
Dilute phase systems use high-velocity airflow and low pressure to move materials in suspension, suitable for lightweight and non-abrasive powders.
Dense phase systems operate at low velocity and high pressure, ideal for dense, abrasive, or fragile materials like cement or sand. Dense phase systems reduce wear, energy consumption, and material degradation compared to dilute systems.
Pneumatic conveyors are widely used in cement manufacturing, ready-mix concrete batching, power generation, chemical processing, and food production. They are primarily used to convey cement, fly ash, silica fume, lime, and mineral powders from storage silos to mixers or batching hoppers. The system’s enclosed design ensures clean, safe, and efficient material transfer even in confined or dusty industrial environments.
The main technical parameters of pneumatic conveying systems include airflow rate (m³/min), working pressure (kPa), pipeline diameter (mm), transfer capacity (t/h), and conveying distance (m).
Key performance indicators are conveying efficiency, pressure stability, material recovery rate, and energy consumption. A well-designed system should achieve over 95% material recovery and maintain consistent pressure to ensure uninterrupted operation.
The cost of a pneumatic conveying system depends on several factors: capacity, pipeline length, type of material conveyed, automation level, and compressor power.
In the export market, the typical price range is USD 5,000–30,000, while large customized systems for industrial plants may exceed USD 50,000. The total investment also varies with installation complexity, control system design, and stainless-steel material options for food-grade use.
As a professional pneumatic conveyor exporter from China, we provide fully customized systems designed for high efficiency, long conveying distance, and minimal maintenance. All systems are CE and ISO certified, ensuring compliance with global safety and performance standards.
Our production base allows for competitive pricing, fast delivery, and flexible customization for cement plants, concrete batching systems, and industrial applications. With over 30 years of experience, we ensure consistent quality, technical support, and reliable after-sales service for international clients.
Whether it's a concrete batching plant or an asphalt batching plant, both the plan and any component can be customized. SDCAD's service is beyond imagination. We look forward to hearing from you.
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