Grain dryer FRT series

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Overview
The Strahl FRT Series is a continuous-flow grain dryer with integrated heat recovery, designed for homogeneous drying, controlled process air circulation and reduced acoustic impact thanks to a raised external air inlet beside the burner.

Key benefits for agricultural installations

• Low acoustic impact: Dedicated recirculation air architecture and fan silencers reduce operational noise, suitable for sites near sensitive areas.
• Controlled air dynamics: Precisely managed inlet and recirculation flows ensure uniform heat distribution and consistent drying without energy consumption peaks.
• Energy-efficient operation: Recovery fans reintroduce part of the hot air into the cycle to lower fuel consumption while maintaining fast and even drying.

Core technological components

• Loading hopper: Internal geometry ensures steady grain flow and optimal feed to the drying column.
• Main fans: Located opposite the burner, operating in suction mode; fitted with silencers and dampers to reduce noise and dust emissions.
• Catwalks and access: External and internal walkways for safe inspection and maintenance.
• Air ducts: Profiled to facilitate grain flow and efficient heat exchange between hot air and product.
• Heat generator: In-line burner available for natural gas and LPG with accurate modulation; diesel option available.
• Recovery fans: Positioned at the base to collect and reintroduce part of the hot process air for energy recovery.
• Extraction device: Oscillating shutters provide even, controlled discharge of the product.
• Base structure: Anchored foundation certified for wind, snow and seismic loads.

Drying process flow

• Air intake: External air is drawn in, heated and used to support drying.
• Hot air circulation: Heated air passes through the grain, extracting internal moisture.
• Exhaust and recovery: Partly usable hot air at the bottom is recovered and reintroduced; moisture-saturated exhaust is expelled.
• Product cooling: Dried product is cooled with ambient air in the lower section before extraction.
• Energy recovery: Residual hot air from final drying stages is reused to reduce overall consumption.

Complementary technologies (options)

• VAP System: STRAHL technology for additional dust emission reduction.
• Moisture control system: Continuous monitoring of product moisture for tighter process control.
• Extraction speed regulator: Option with inverter to adjust product extraction rate.
• Additional temperature probes: Supplementary sensors for detailed temperature monitoring across sections.

Control systems
Strahl control systems provide real-time monitoring, alarms and process optimization to maximize throughput, grain quality and operational efficiency.

Technical specifications

• Brand: Strahl
• Model / Commercial denomination: Serie FRT
• Product type: Continuous-flow grain dryer with heat recovery
• Air inlet: Raised external air inlet channel positioned beside the burner for low-dust intake and acoustic benefits
• Noise mitigation: Recirculation air structure, fan silencers and dampers
• Airflow management: Controlled inlet and recirculation zones for homogeneous heat distribution
• Energy recovery: Recovery fans to reintroduce part of hot air into the cycle
• Heat generator options: Natural gas, LPG (in-line burner); diesel option available
• Main fans: Suction mode with silencer and damper
• Extraction: Oscillating shutters for even discharge
• Operator access: Internal and external catwalks
• Base: Anchored foundation certified for wind, snow and seismic loads
• Options: VAP System, Moisture Control, Extraction Speed Regulator (VFD), Additional Temperature Probes
• Control: Strahl real-time monitoring and process optimization