What AS Engineers Supplies

A pneumatic conveying system is not just a pipeline. The components that move and clean the air matter as much as the conveying line itself. Our scope includes:

• Air source: Centrifugal blowers and high pressure radial blade blowers sized to your throughput and distance requirements
• Conveying pipeline: MS or SS construction, sized for material type, velocity, and pressure drop
• Feed system: Rotary airlock valves and screw feeders for controlled, consistent material introduction
• Downstream filtration: Cyclone separators for primary separation, bag filters for fine dust recovery before air exhaust
• Receiving bin or silo: Discharge into existing hoppers or new collection points

Because we manufacture blowers and pollution control equipment in-house, we can design the air source and the filtration stage to work together. Most conveying equipment suppliers leave the buyer to source these separately and reconcile mismatched specifications.

Dilute Phase Pneumatic Conveying: Our Primary System Type

Our manufactured system is dilute phase pneumatic conveying, which transports material suspended in a high-velocity air stream at relatively low system pressure.

This suits a wide range of free-flowing powders and granules where product integrity is not compromised by velocity. Common materials handled:

• Fly ash, cement, and lime powder in power and cement plants
• Wheat flour, starch, sugar, and spices in food processing
• Plastic pellets and polymer granules in petrochemical and resin plants
• Soda ash, salt cake, and fine chemicals in chemical manufacturing
• API powders and excipients in pharmaceutical plants

For materials that are fragile, abrasive, or extremely fine (where dilute phase velocities cause degradation or unacceptable wear), dense phase conveying is worth evaluating. We can discuss whether dilute phase suits your material or refer you to the right system type during the enquiry stage.

Typical operating parameters for dilute phase systems:

How We Approach System Design

Every conveying requirement starts with material data. Before we size a blower or specify a pipeline diameter, we need:

• Material name, bulk density, and particle size distribution
• Inlet moisture content and temperature
• Required throughput in kg/hr
• Horizontal and vertical conveying distances
• Number of pickup points and delivery points
• Available power supply and any space constraints

From this data, we calculate air-to-material ratio, select the appropriate blower type and pressure rating, size the pipeline, and specify the separation and filtration equipment. This is not catalog selection. Each system is engineered to the actual application.

Our engineering team has worked across fertilizer plants in Gujarat, food processing facilities in Maharashtra and Punjab, chemical manufacturers in GIDC clusters, and ETP handling systems for municipal and industrial clients. If your material or layout is non-standard, we have handled non-standard before.

Industries We Serve

Why Pneumatic Conveying Over Mechanical Alternatives

Plant engineers typically weigh pneumatic conveying against belt conveyors, screw conveyors, and bucket elevators. Here is the practical comparison:

• Enclosed pipeline: No product spillage, no ambient dust, no cross-contamination between shifts or materials. This matters directly for CPCB compliance on dust emission and for GMP requirements in pharmaceutical plants.
• Layout flexibility: A pipeline can go vertical, horizontal, or around corners. A belt or screw conveyor cannot change direction without a transfer point and an additional drive.
• Fewer moving parts: The blower is the primary mechanical component. No belts to align, no flights to replace, no chain to lubricate along the conveying length.
• Scale: A single pipeline can serve multiple pickup points and multiple delivery destinations with valve switching, which mechanical systems cannot match without duplicating equipment.

The trade-off is energy consumption. Pneumatic conveying is more energy-intensive than belt or screw conveying for the same throughput, because the blower must move both material and the conveying air. For high-throughput applications at long distances, dense phase or mechanical alternatives deserve evaluation. We will tell you this at the enquiry stage rather than recommend a system that is not the right fit.

System Integration with Pollution Control

Any pneumatic conveying system exhausts air at the receiver end. That exhaust carries fine particles. Under CPCB ambient air quality standards, this exhaust must be filtered before release.

Our bag filter range handles the fine particulate that cyclone separators leave behind, achieving outlet dust concentrations below 50 mg/Nm³ in most applications. For plants near sensitive zones or with stricter permit conditions, we can discuss tighter filter specifications.

Because we supply both the conveying system and the pollution control equipment, the filtration specification is designed at the same time as the conveying system, not added as an afterthought.

Frequently Asked Questions

What is the difference between dilute phase and dense phase pneumatic conveying?

Dilute phase moves material suspended in a fast-moving air stream at relatively low pressure. Dense phase moves material in slugs or plugs at lower velocity and higher pressure. Dilute phase suits free-flowing powders and granules that tolerate velocity without degradation. Dense phase suits fragile, abrasive, or extremely fine materials where high velocity would cause breakage or excessive pipe wear. AS Engineers manufactures dilute phase systems. If your material requires dense phase, we will tell you during the technical discussion.

Can AS Engineers supply the blower as well as the conveying system?

Yes. We manufacture centrifugal blowers and high pressure radial blade blowers in-house. For conveying applications, we select and supply the blower as part of the system package, sized to the conveying air requirements. This avoids the common problem of a conveying contractor specifying a blower that does not match the system pressure drop.

What information do I need to get a quote?

Material name, bulk density, particle size, required throughput in kg/hr, conveying distance (horizontal and vertical), number of pickup and delivery points, and available power supply. A process sketch or plant layout drawing speeds up the sizing significantly.

How do I ensure CPCB compliance for dust emissions from the conveying exhaust?

Bag filters at the receiver end bring exhaust particulate concentration within CPCB ambient standards. We size the bag filter as part of the system design. If your facility is subject to a specific emission permit condition, share the limit and we design to it.

What is the typical delivery lead time for a pneumatic conveying system?

Lead time depends on system size and complexity. Discuss your timeline during the enquiry and we will confirm a realistic delivery schedule. 

Talk to Our Engineering Team

If you are evaluating a pneumatic conveying system for a new plant, an ETP upgrade, or a replacement for an open mechanical conveyor, the fastest path to a correct specification is a technical discussion.

Share your material data and throughput requirement and our team will confirm whether dilute phase is the right fit, size the air source, and outline the system scope.

Send your requirement or call us at +91 99090 33851.