Pneumatic conveying technologies
Safe, continuous and customized handling for all types of plastic material.
In the world of plastics processing, pneumatic conveying is a critical phase that directly affects production efficiency, material quality and plant reliability.
CT Systems offers different conveyor technologies, each designed to meet specific needs, based on:
- Type of material (granule, powder, compound, hygroscopic or abrasive materials)
- Distances and system configuration
- Type of downstream process (extrusion, filming, blow molding, etc.)
Pneumatic conveying in vacuum (vacuum)
Perfect for medium routes, sensitive materials, modular systems.
The vacuum system uses a pump to generate a vacuum and suck the material into the pipes. It is suitable for granule or light powder materials, such as ABS, PS, PET, hygroscopic or pigmented polymers, where it is essential to preserve integrity and cleanliness.
It is often used in:
- Production departments where multi-point loads to multiple machines are needed
- Extrusion lines with sequential feeding
- Environments where you want to reduce the risk of cross-contamination
Application examples:
- Transport of colored masterbatches to small dosers
- Feeding of engineering polymers in a cleanroom
Plus:
- losed and hygienic system
- Low wear and tear on components
- Easily reconfigurable layout
Pneumatic conveying under pressure
The ally of large plants. Powerful, continuous, efficient.
This technology uses compressed air to push material along the lines. It is the ideal choice for plants where you have to cover long distances, move large flow rates or feed multiple silos or hoppers in parallel.
t is the preferred solution in:
- Large storage centers
- Compound and recycling departments
- High-productivity multilayer extrusion systems
Application examples:
- Conveying rigid PVC to multiple silos
- Continuous feeding of blown film lines
Plus:
- High speed and capacity
- Reduced loading times
- Very good performance over long distances
Dense phase pneumatic conveying
Energy efficient, material protection, less wear and tear.
In the dense-phase system, the material is pushed en masse into the pipes, with a reduced amount of air and at low speed. This intermittent or “slug” flow reduces friction and limits product degradation, ideal for delicate or abrasive materials.
It is often implemented with pressure systems and requires more specific design, but provides significant benefits in the long term, especially in high-volume plants.
Key benefits:
- Reduced pipe erosion
- Less material pulverization
- Lower air consumption and therefore energy
- Ideal for long-distance transport with difficult materials
Examples of use:
- PVC powder or with mineral fillers towards extruders
- Granules reinforced with glass or carbon fiber
- Abrasive mixtures and high-density products
Ideal context: systems with continuous and high-load transport, which require energy savings and material protection.
- Pneumatic conveying technologies
Characteristics
Big bag emptying systems: precision without waste
Problem solved: “How to transfer bulk materials quickly, safely, and without losses?”
Why Choose Our Systems
- Controlled discharge with mechanical or pneumatic flow regulation.
- Sturdy AISI 304/316 stainless steel or AlMg3 aluminum construction for resistance to corrosion and wear.
- Immediate integration with silos, hoppers or dosing lines (standard or custom-made flange).
3-step operation
- Secure attachment: Bayonet or quick coupling fastening system.
- Optimized discharge: Controlled vibration or fluidizing air for difficult materials (e.g. cohesive powders).
- Zero residues: Discharge angle designed for each material (free preliminary tests).
Technological Differentiators
- Integrated weighing (optional): Load cells up to ±0.5% accurac
- Tailor-made accessories: Dust filters, inerting systems (ATEX), heating for hygroscopic materials.
- Quick cleaning: Design without sharp corners and wide inspection doors.
TECHNICAL DATA
| Parameter | Details |
|---|---|
| Capacity | From 500kg to 2 ton (standard) |
| Emptying time | 5-15 min (depends on material) |
| Feeding | 400V/50Hz or 230V/50Hz |
| Options | Vibrators, air pulsation, weighing |
- Pneumatic conveying technologies
Characteristics
CPJ Jet Filter: Intelligent Filtration for Industrial Dust
Problem solved: “How to capture dust without stopping production?”
Why choose it
- 99.8% efficiency on plastic, food and chemical powders (ISO 16890 test).
- Self-cleaning with programmable compressed air jets (5-6 bar), zero manual intervention.
- Modular construction in AISI 304 steel for small spaces and flexible installations.
How it works in 3 steps
- Suction: Dust-laden air enters the filter.
- Separation:
Heavy particles fall by gravity.
Fine dust is blocked by the high-durability polyester sleeves. - Regeneration: Reverse air pulses automatically clean the filters, releasing dust into the collection system.
Technological Differentiators
- No moving parts: Less wear and tear, zero downtime.
- Front inspection door for filter change in 5 minutes.
- Perfect integration with pneumatic systems (suction/pressure).
- Pneumatic conveying technologies
Characteristics
Continuous discharge, without blockages, even with difficult materials.
CDU – Compact Discharge Unit (Flat Bottom)
Fast and uniform discharge in small spaces.
The CDU is designed to ensure the smooth discharge of bulk materials, even in critical conditions where bridging (arch formation) can block the flow.
Thanks to its compact design, it replaces traditional hoppers and fits perfectly into layouts with limited space.
Why choose the CDU
- Uniform discharge: tangential rotating blade with customizable profiles for each material.
- Premium materials: AISI 304/316L stainless steel for the food, pharmaceutical, and aggressive chemical industries.
- Zero bridging: ideal for cohesive powders and difficult materials.
- Easy maintenance: front inspection door and smooth surfaces with no dead spots.
- Energy efficiency: no external vibrators required, reducing consumption by up to 30% compared to traditional systems.
Operation
- Manual, mechanical, or pneumatic filling.
- Controlled discharge via adjustable rotating blade; pneumatic butterfly valve available for precise dosing.
Vibrating Bottom Extractor
When the material needs movement to flow.
The vibrating bottom extractor is the ideal solution for materials with low flowability, which tend to clump or compact, and require vibration to be moved constantly.
Distinctive features:
Adjustable vibration to facilitate the discharge of even fine powders and moisture-sensitive additives.
- Universal compatibility: can be integrated with screw conveyors, pneumatic transport, and dosing systems.
- Hygienic stainless steel design with smooth surfaces for easy cleaning.
- Controlled flow: possibility of combining vibration with control valves or downstream dosing systems.
- Continuous reliability: reduces the risk of plant downtime due to critical materials.
In summary:
- Flat-bottom CDU = compact, efficient, ideal for small spaces and materials that tend to form arches.
- Vibrating bottom = versatile, designed for difficult powders and materials that require movement to flow.
Both solutions are customizable and made of certified materials to ensure maximum safety and durability.
- Pneumatic conveying technologies
Characteristics
Safety, cleanliness and convenience for bulk material handling.
Our manual bag emptying stations (MEB series) are designed to simplify and make safe the loading of bulk materials from 25 kg bags up to 1500 kg big-bags. Each model is designed to ensure rapid discharge, without dust dispersion, and with maximum ergonomics for the operator.
Why choose MEB stations
- Safe and clean working environment: each station is equipped with a dust extraction system with cartridge filter and centrifugal fan. The operator can work without exposure to harmful dust.
- Maximum operating convenience: internal grid to support and open the bags, front door with shock absorbers and microswitch that automatically starts the de-dusting cycle.
- Flexibility: available in different hopper capacities (300 – 1000 litres), with versions that handle both 25 kg bags and big-bags up to 1500 kg.
- Modular integration: Connection to extraction systems (vibrators, pneumatic hammers, conical fluidization, CDU flat bottom extractors) and downstream transport possible.
Available models
- MEB1000 / MEB1200: Stations for 25 kg bags, with hoppers from 300 to 600 litres.
- MEB1400: Combined version for 25 kg bags and big-bags up to 1500 kg, with 1000 litre hopper.
Key Benefits
- Up to 99% Reduction of environmental dust
- reduction in environmental dust Ergonomics: convenient and safe loading for the operator
- Modularity: possibility of integrating accessories (pneumatic hammer, fluidizing cone, bin activator) according to the material treated
- Quick cleaning thanks to the separation between the filter area and the bag area
CT Systems manual bag emptying stations are the ideal solution for those looking for reliability, ergonomics and safety in the handling of bulk materials, with models suitable for both small production lines and complete industrial plants.
Don’t stop here.
What you’ve seen is just part of our range. We offer complete solutions for the storage and handling of bulk materials, designed to reduce costs, downtime, and operational risks.
Write to us to learn more about our proposals and find out which solution best fits your plant.
