Products  /  Evaporative Cooling Systems
Energy-Efficient Cooling

Evaporative Cooling Systems

Positive-pressure coolers and negative-pressure pad-and-fan systems delivering high fresh-air volumes with low energy use.

Engineered for your facility

A complete, site-specific solution

Flexible Engineering designs, supplies and installs complete evaporative cooling — positive-pressure air coolers and engineered negative-pressure pad-and-fan systems (18,000–30,000 m³/h) — delivering high airflow and fresh, filtered air at a fraction of air-conditioning running cost.

Up to 90% less energy than A/C
No refrigerants — fresh air
18,000–30,000 m³/h models
Turnkey design & installation
6 products
FE-18000 Industrial Air Cooler
FE-18000 Industrial Air Cooler
FE-25000 Industrial Air Cooler
FE-25000 Industrial Air Cooler
FE-30000 Industrial Air Cooler
FE-30000 Industrial Air Cooler
Negative-Pressure Pad-and-Fan System
Negative-Pressure Pad-and-Fan System
36, 42 & 50-Inch Exhaust Fans
36, 42 & 50-Inch Exhaust Fans
Turnkey Cooling Control & Water System
Turnkey Cooling Control & Water System
Product descriptions

6 solutions in this range

Review the overview, then open Read More for the complete document details.

PRODUCT 01

FE-18000 Industrial Air Cooler

Positive-pressure evaporative cooler for spot or space cooling with 18,000 m³/h airflow and efficient axial fan operation.

  • 1.1 kW motor
  • 150–200 m² coverage
  • 100 mm cooling pad
  • 10–15 L/h approximate water use
Read More

Model FE-18000
• Airflow: 18,000 m³/h
• Power Supply: 380V / 50Hz (3 Phase)
• Fan Type: Axial
• Motor Power: 1.1 kW
• Cooling Pad Thickness: 100 mm
• Water Tank Capacity: 30–40 Litres
• Effective Coverage Area: 150–200 m²
• Air Discharge: Top / Side discharge options
• Noise Level: ≤ 75 dB
• Water Consumption: 10–15 L/hr (approx.) Model FE-25000
• Airflow: 25,000 m³/h
• Power Supply: 380V / 50Hz (3 Phase)
• Motor Power: 1.5 kW
• Pad Thickness: 100–150 mm high-efficiency cellulose media
• Effective Coverage Area: 200–300 m²
• Static Pressure Capability: Medium to high
• Water Tank: 40–50 Litres
• Heavy-duty industrial housing Model FE-30000
• Airflow: 30,000 m³/h
• Motor Power: 2.2 kW
• Fan Diameter: Large axial fan for high throw distance
• Cooling Pad Area: Extended surface for maximum evaporation
• Coverage Area: 300–400 m²
• Industrial-grade corrosion-resistant casing
• Variable speed drive compatible
• Suitable for ducted or direct discharge systems All units are manufactured using corrosion-resistant materials such as powder-coated steel, stainless steel or reinforced polymer housings. Cooling media are high-efficiency cross-fluted cellulose pads designed for maximum surface area and long service life.

PRODUCT 02

FE-25000 Industrial Air Cooler

Higher-capacity 25,000 m³/h unit with reinforced industrial housing and increased static-pressure capability for larger spaces.

  • 1.5 kW motor
  • 200–300 m² coverage
  • 100–150 mm media
  • 40–50 L tank
Read More

Model FE-18000
• Airflow: 18,000 m³/h
• Power Supply: 380V / 50Hz (3 Phase)
• Fan Type: Axial
• Motor Power: 1.1 kW
• Cooling Pad Thickness: 100 mm
• Water Tank Capacity: 30–40 Litres
• Effective Coverage Area: 150–200 m²
• Air Discharge: Top / Side discharge options
• Noise Level: ≤ 75 dB
• Water Consumption: 10–15 L/hr (approx.) Model FE-25000
• Airflow: 25,000 m³/h
• Power Supply: 380V / 50Hz (3 Phase)
• Motor Power: 1.5 kW
• Pad Thickness: 100–150 mm high-efficiency cellulose media
• Effective Coverage Area: 200–300 m²
• Static Pressure Capability: Medium to high
• Water Tank: 40–50 Litres
• Heavy-duty industrial housing Model FE-30000
• Airflow: 30,000 m³/h
• Motor Power: 2.2 kW
• Fan Diameter: Large axial fan for high throw distance
• Cooling Pad Area: Extended surface for maximum evaporation
• Coverage Area: 300–400 m²
• Industrial-grade corrosion-resistant casing
• Variable speed drive compatible
• Suitable for ducted or direct discharge systems All units are manufactured using corrosion-resistant materials such as powder-coated steel, stainless steel or reinforced polymer housings. Cooling media are high-efficiency cross-fluted cellulose pads designed for maximum surface area and long service life.

PRODUCT 03

FE-30000 Industrial Air Cooler

Large 30,000 m³/h cooler with extended pad area and high throw distance for major industrial applications.

  • 2.2 kW motor
  • 300–400 m² coverage
  • Variable-speed compatible
  • Ducted or direct discharge
Read More

Model FE-18000
• Airflow: 18,000 m³/h
• Power Supply: 380V / 50Hz (3 Phase)
• Fan Type: Axial
• Motor Power: 1.1 kW
• Cooling Pad Thickness: 100 mm
• Water Tank Capacity: 30–40 Litres
• Effective Coverage Area: 150–200 m²
• Air Discharge: Top / Side discharge options
• Noise Level: ≤ 75 dB
• Water Consumption: 10–15 L/hr (approx.) Model FE-25000
• Airflow: 25,000 m³/h
• Power Supply: 380V / 50Hz (3 Phase)
• Motor Power: 1.5 kW
• Pad Thickness: 100–150 mm high-efficiency cellulose media
• Effective Coverage Area: 200–300 m²
• Static Pressure Capability: Medium to high
• Water Tank: 40–50 Litres
• Heavy-duty industrial housing Model FE-30000
• Airflow: 30,000 m³/h
• Motor Power: 2.2 kW
• Fan Diameter: Large axial fan for high throw distance
• Cooling Pad Area: Extended surface for maximum evaporation
• Coverage Area: 300–400 m²
• Industrial-grade corrosion-resistant casing
• Variable speed drive compatible
• Suitable for ducted or direct discharge systems All units are manufactured using corrosion-resistant materials such as powder-coated steel, stainless steel or reinforced polymer housings. Cooling media are high-efficiency cross-fluted cellulose pads designed for maximum surface area and long service life.

PRODUCT 04

Negative-Pressure Pad-and-Fan System

A building-wide cooling arrangement where exhaust fans draw outdoor air through wetted cellulose pads for continuous cooled airflow.

  • Uniform temperature distribution
  • 100/150/200 mm pads
  • Recirculating water system
  • Custom building design
Read More

Flexible Engineering provides complete negative pressure evaporative cooling systems for large industrial and agricultural structures. In this system:
• Cooling pads are installed on one side (air inlet side) of the building.
• High-capacity exhaust fans are installed on the opposite end.
• When fans operate, they create negative pressure inside the building.
• Fresh air is drawn through the wetted cooling pads.
• The air cools as it passes through the pads and flows across the building.
• Warm air is expelled through exhaust fans. This creates continuous air movement, full air exchange and uniform temperature distribution.
• Material: High-density cellulose evaporative media
• Thickness Options: 100 mm / 150 mm / 200 mm
• Height: Custom fabricated to building requirement
• Frame: Aluminium or GI structure
• Water Distribution: PVC header pipe with uniform spray nozzles
• Water Recirculation: Sump tank with pump system
• Anti-algae treatment available

PRODUCT 05

36, 42 & 50-Inch Exhaust Fans

High-capacity galvanised or stainless industrial exhaust fans complete negative-pressure cooling systems.

  • 28,000–50,000 m³/h range
  • IP55 motors
  • Automatic shutters
  • Belt or direct drive
Read More

Industrial Exhaust Fan Models:
• 36 inch fan – Airflow approx. 28,000–30,000 m³/h
• 42 inch fan – Airflow approx. 35,000–40,000 m³/h
• 50 inch fan – Airflow approx. 44,000–50,000 m³/h Specifications:
• Frame: Galvanized sheet / Stainless steel
• Blades: Aluminium alloy or stainless steel
• Motor: IP55 rated
• Power: 0.75 kW – 1.5 kW depending on size
• Belt-driven or direct-drive options
• Automatic shutter system

PRODUCT 06

Turnkey Cooling Control & Water System

Complete pumps, header pipes, nozzles, tanks, electrical panels and controls designed around the heat load and required air changes.

  • Heat-load calculation
  • Pad-area sizing
  • Fan placement design
  • Installation and commissioning
Read More

Flexible Engineering provides turnkey solutions including:
• Heat load calculation
• Air change rate determination
• Fan quantity and placement design
• Pad area calculation
• Structural support design
• Water piping layout
• Electrical panel with control system
• Installation and commissioning
• Preventive maintenance services System design is customized based on:
• Building dimensions
• Internal heat load
• Local climate conditions
• Required temperature reduction
• Air change per hour requirement
• Up to 70–80% lower energy consumption compared to conventional air conditioning
• Fresh air ventilation
• Lower capital cost for large spaces
• Environmentally friendly (no refrigerants)
• Easy installation and scalability
• Reduced operating expenses
• Suitable for industrial, commercial and agricultural use
• Factories and manufacturing plants
• Warehouses and logistics centres
• Poultry and livestock farms
• Greenhouses
• Workshops and fabrication units
• Automotive garages
• Event halls and semi-open commercial spaces Flexible Engineering delivers complete cooling solutions under one roof — from engineering design to supply, installation and maintenance. Our systems are built for durability, high airflow efficiency and long operational life in tropical and industrial environments. We do not simply supply equipment — we provide engineered cooling solutions tailored to your facility requirements.

Model range

Technical overview

Representative specifications; final selection is confirmed after site and duty assessment.

ModelAirflowMotorCoverage
FE-1800018,000 m³/h1.1 kW150–200 m²
FE-2500025,000 m³/h1.5 kW200–300 m²
FE-3000030,000 m³/h2.2 kW300–400 m²
Applications

Where these systems work

FactoriesWarehousesPoultry farmsGreenhousesWorkshopsEvent halls

Need help selecting the right system?

Our engineers can assess your site and recommend a practical solution.

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