Tea Factory Automation & Trough Withering Humidity Control in Sri Lanka
Direct Answer: Sanota automates tea trough withering, fluidized bed dryers, and fermentation climate systems for orthodox and CTC tea factories across Sri Lanka. By continuously modulating airflow, damper positions, and dryer burners with precision industrial PLCs, we eliminate weather-dependent quality variations and cut factory firewood consumption by up to 20%.
Engineered Automation Solutions for Ceylon Tea Producers
Modernize critical tea manufacturing stages without the massive capital expenditure of buying new machinery from overseas.
Automated Trough Withering Humidity & Airflow Control
Digital psychrometric sensors and modulating motorized dampers continuously regulate hygrometric depression and trough airflow, guaranteeing even 53%–55% leaf withering even during heavy tropical monsoon humidity.
Fluidized Bed Dryer (FBD) Temperature Automation
PID control retrofits for existing tea dryers utilizing multi-zone RTD probes and modulating burner/damper actuators to maintain tight ±1.5°C drying envelopes, eliminating leaf scorching and saving up to 20% in boiler fuel.
Green Leaf Reception & Telemetry Weighing
Automated load cell integration with RFID estate pouch scanning that logs green leaf intake directly into cloud databases, eliminating manual ledger recording errors and leaf pilferage.
Roller & Rotorvane Motor VFD Upgrades
Variable frequency drive conversions on legacy tea rolling tables and rotorvanes providing soft-start torque control, reducing electrical demand peaks and allowing exact RPM tuning per leaf flush.
Continuous Fermentation Floor Climate Automation
Precision ultrasonic misting nozzles, laminar air ducts, and temperature sensors that maintain optimal 95%+ relative humidity and 22°C–25°C fermentation conditions for maximum theaflavin (TF) development.
Factory-Wide Power Factor & Energy Monitoring
Sub-metering networks monitoring peak electrical loads on heavy sifter, cutter, and fan motors with automated alerts to avoid CEB maximum demand penalties.
How We Modernize Your Tea Factory In 6 Phases
Designed specifically for operational tea factories with strict production schedules and daily leaf intakes.
On-Site Factory Walkthrough & Moisture Audit
Our engineers inspect your existing trough layout, fan CFM outputs, boiler heat exchangers, and historical auction valuation grades.
Psychrometric & Airflow Modeling
We calculate the exact airflow distribution and thermal requirements needed to maintain uniform leaf moisture evaporation across all troughs.
Control Panel & Damper Actuator Fabrication
Custom IP55 tea dust-proof control panels, weather-shielded sensors, and motorized damper assemblies manufactured in our Galle workshop.
Low-Downtime Weekend Installation
Mounted during off-peak manufacturing windows between leaf flushes, ensuring zero disruption to your daily processing schedule.
Dryer PID & Withering Calibration Trials
Fine-tuning sensor thresholds with your factory tea maker during live batches to match exact orthodox or CTC leaf characteristics.
Operator Training & Seasonal AMC Support
Simple Sinhala & English touchscreen training for withering operators, accompanied by seasonal calibration visits before peak cropping months.
Tea Withering & Drying Automation Technical Parameters
| Stage | Control Methodology | Tea Master Benefit |
|---|---|---|
| Withering Trough Airflow | VFD Fan Modulation + Psychrometric ΔT (Dry/Wet bulb) feedback | Eliminates leaf red-spotting, scorching, and damp leaf pockets |
| Fluid Bed Dryer (FBD) | Multi-loop PID algorithm driving motorized modulating air/steam dampers | Eliminates burnt liquor flavor; guarantees 2.5–3.0% residual moisture |
| Fermentation Floor | High-pressure misting + temperature interlocks (22°C–24°C, 95% RH) | Bright, coppery infused leaf color and enhanced aromatic compounds |
| Operator Interface | 7" / 10" Industrial HMI with Bilingual Sinhala/English screens | Fast operator onboarding with zero complex coding required by staff |
| Management Telemetry | Cellular 4G IoT Gateway logging withering curves to cloud dashboards | Estates managers inspect live trough curves from smartphones anywhere |
Frequently Asked Questions: Tea Factory Automation
Practical answers to questions regarding tea withering controls, dryer retrofits, and estate ROI.
Upgrade Your Withering Troughs & Dryers This Season
Invite our tea automation engineering team for an on-site evaluation of your withering lofts and dryer burners across Galle, Matara, Ratnapura, or the Hill Country.