Thermal Dryer: Final-Stage Hot Air Drying for Plastic Flakes

Final Drying Stage in Washing Lines

Thermal Dryer: Final-Stage Hot Air Drying for Plastic Flakes

Achieve low, stable moisture levels with a high-efficiency thermal dryer system. Designed as the final drying stage in your plastic washing line, it delivers consistent flakes ready for pelletizing while helping reduce fines and humidity carryover.

Thermal dryer hot-air pipeline with cyclone separator for plastic flakes

Engineered for Quality

Drying Performance

Engineered as the final quality gate in your plastic washing line — stabilize moisture, reduce defects during extrusion, and improve downstream consistency.

Low, Stable Moisture Content

After centrifugal dewatering or squeezing, controlled hot air typically reduces moisture to below 3% (often around 1–2%, depending on material type and line conditions).

Improved Pelletizing Stability

Consistently dried flakes help reduce foaming, bubbles, and voids during extrusion — supporting smoother production and more stable pellet quality.

Fines & Moist Air Separation

The cyclone separator helps remove entrained fines and humid air, delivering cleaner flakes to the next process stage.

SUS304 Stainless Steel Construction

All pipelines fabricated from Type 304 stainless steel for corrosion resistance and long service life. CE certification available for international compliance.

Hot-Air Pipeline System

Thermal Drying Process

A pneumatic hot-air pipeline with cyclone separation — simple, efficient, and reliable final-stage drying.

1

Pneumatic Conveying

Partially dried flakes are conveyed by the blower into the thermal drying circuit.

2

Hot Air Injection

Heated air mixes with the flakes through a stainless-steel pipeline to promote rapid moisture removal.

3

Moisture Evaporation

Residual moisture evaporates during conveying, driven by airflow, temperature, and residence time.

<1–3% Moisture
4

Cyclone Separation

Dried flakes are separated from moist air and discharged to storage, bagging, or the pelletizing line.

1

Pneumatic Conveying

Partially dried flakes are conveyed by the blower into the thermal drying circuit.

2

Hot Air Injection

Heated air mixes with the flakes through a stainless-steel pipeline to promote rapid moisture removal.

3

Moisture Evaporation

Residual moisture evaporates during conveying, driven by airflow, temperature, and residence time.

<1–3% Moisture
4

Cyclone Separation

Dried flakes are separated from moist air and discharged to storage, bagging, or the pelletizing line.

Versatile Integration

Key Applications in Plastic Washing Lines

The thermal dryer serves as the final drying stage across multiple plastic recycling workflows.

PET Flake Drying

Common in PET bottle washing lines to reach stable, low moisture before producing high-quality rPET pellets.

PE/PP Film Drying

Final drying after the squeezer or dewatering stage before feeding pelletizing extruders.

Rigid Flake Drying (PP/HDPE)

Helps prepare rigid flakes for extrusion or compounding by reducing moisture variability and improving throughput stability.

Technical Specifications

Specifications are for reference. Final configuration can be customized to your requirements — larger blower and multi-stage heating available for higher throughput lines.

Model ERM-TDR-800
Process Type Hot-air pneumatic pipeline with cyclone separation
Blower Power 5.5 kW
Heating Power 36 kW
Target Moisture <1–3% (depends on material, inlet moisture, and throughput)
Pipe Diameter 159 mm
Pipe Material Type 304 Stainless Steel
Capacity Configured to match your washing line (please inquire)
Certification CE Certification Available
Warranty and Support

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.

1-year parts and workmanship coverage

Installation Guidance

We provide layout, foundation, utility, clearance, line-integration, and commissioning guidance to support a smooth installation and reliable startup.

Commissioning support

Spare Parts Supply

Replacement wear parts, bearings, seals, sensors, electrical components, and other service items are available for scheduled maintenance and long-term operation.

Long-term availability

Technical Assistance

Remote troubleshooting, operating recommendations, maintenance guidance, and optional on-site service are available when your project needs additional support.

Global service

Sizing & Operating Notes

Get a Tailored Drying Solution

Contact our team to confirm model sizing, integration method, power requirements, pricing, and lead time.

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