Hot Air Pipeline Drying
Pipeline Hot Air Drying System
Dry washed rigid-plastic flakes and regrind continuously with a high-velocity hot-air pipeline. With a suitable configuration and operating conditions, many PET, HDPE and PP rigid-flake installations target less than 2% final moisture, helping improve pelletizing stability and washing-line throughput.
Why This System
Pipeline Hot Air Dryer Benefits
Maximize material value, boost throughput, and lower operational costs with precision hot air drying.
This pipeline hot air dryer works as a second-stage unit after centrifugal dewatering. This configuration is intended for PET, HDPE and PP rigid flakes.
For film or mixed-material final drying, compare the configurable thermal dryer.
Maximize Material Value
Under suitable inlet conditions and configuration, the system can target <2% final moisture, helping reduce bubbles and feeding instability during downstream extrusion and molding.
Boost Your Throughput
The reference 72 kW heating system and 30-meter pipeline support continuous processing. Final throughput depends on the material, inlet moisture, airflow, temperature settings and selected configuration.
Lower Operational Costs
Insulated piping helps reduce heat loss, while SUS304 material-contact parts support corrosion resistance and routine cleaning. Actual energy use and service life depend on the material, throughput, operating conditions, maintenance and selected configuration.
Heavy-Duty SUS304 Construction
All material-contact parts are fabricated from corrosion-resistant SUS304 stainless steel. The carbon-steel frame (60x60x3 mm) supports continuous industrial operation; final construction details are confirmed with the selected configuration.
How It Works
Pipeline Drying Process
A continuous, inline drying process that removes moisture from washed plastics using high-velocity heated air — no batch loading or manual handling required.
Material Feeding
Wet flakes or regrind from the upstream dewatering stage are fed into the pipeline inlet via screw conveyor or rotary valve.
Hot Air Acceleration
The 72 kW electric heater raises air temperature while the 11 kW blower generates high-velocity airflow to suspend and transport the material.
Pipeline Drying
Material travels through the 30-meter SUS304 insulated pipeline, where heated airflow removes surface and residual moisture toward a below-2% target, depending on the material, inlet moisture, throughput and operating settings.
Cyclone Separation & Collection
Dried material is separated from the airstream in a cyclone separator, then discharged into a storage silo or fed directly to the pelletizer.
Material Feeding
Wet flakes or regrind from the upstream dewatering stage are fed into the pipeline inlet via screw conveyor or rotary valve.
Hot Air Acceleration
The 72 kW electric heater raises air temperature while the 11 kW blower generates high-velocity airflow to suspend and transport the material.
Pipeline Drying
Material travels through the 30-meter SUS304 insulated pipeline, where heated airflow removes surface and residual moisture toward a below-2% target, depending on the material, inlet moisture, throughput and operating settings.
Cyclone Separation & Collection
Dried material is separated from the airstream in a cyclone separator, then discharged into a storage silo or fed directly to the pelletizer.
See the System in Action
Watch the pipeline hot air drying system operating in a real plastic recycling production line.
Rigid Plastic Drying
Ideal Applications for PET/HDPE/PP
This hot air pipeline dryer is a strong fit for washed rigid plastics and regrind where stable moisture and continuous output matter most.
Post-Consumer PET Bottle Flakes
Reduce moisture for consistent IV and stable extrusion/pelletizing after washing.
Post-Industrial HDPE Regrind
Improve feeding and melt stability by removing surface moisture and residual water.
Washed PP Granules
Lower moisture before compounding to reduce bubbles, splay, and production downtime.
ABS & Mixed Rigid Plastics
Prepare shredded ABS housings and mixed rigid regrind for stable extrusion by removing residual wash water.
Technical Specifications
The values below describe a reference configuration. Final heating power, airflow, pipeline size and output moisture are confirmed according to the material, inlet moisture, target throughput and project conditions.
| Target Materials | PET, HDPE, PP (Flakes, Granules, Regrind) |
|---|---|
| Final Moisture | <2% target under suitable conditions |
| Heating Power | 72 kW |
| Fan Power | 11 kW |
| Pipeline Length | 30 meters |
| Pipeline Diameter | 219 mm (wall thickness 2 mm) |
| Material Contact Parts | SUS304 Stainless Steel |
| Frame Material | Carbon Steel (60x60x3 mm) |
| Warranty | 1-year limited warranty with commissioning support |
System Overview & Material Samples
A closer look at the drying system, stainless steel construction, and heating unit.
Reliable Support Throughout the Equipment Lifecycle
From installation planning to routine maintenance, our service team helps keep your equipment operating safely, consistently, and efficiently.
1-Year Limited Warranty
Coverage includes manufacturing defects in major mechanical and electrical components for one year. Normal wear parts and damage caused by improper operation are handled separately.
Installation Guidance
We provide layout, foundation, utility, clearance, line-integration, and commissioning guidance to support a smooth installation and reliable startup.
Spare Parts Supply
Replacement wear parts, bearings, seals, sensors, electrical components, and other service items are available for scheduled maintenance and long-term operation.
Technical Assistance
Remote troubleshooting, operating recommendations, maintenance guidance, and optional on-site service are available when your project needs additional support.
Frequently Asked Questions
Ready to Elevate Your Recycled Plastic Quality?
Contact our specialists to discuss your specific drying needs, customize a system for your production line, and receive a detailed quote.