Product Description
AIXBOILER, a leading A-GRADE boiler manufacturer in China with over 45 years of expertise since 1978, offers oil/gas fired hot air boilers (also known as hot air furnaces or generators). These systems heat air directly or indirectly for industrial applications requiring clean, high-volume hot air without humidity addition.
Manufactured in our advanced facility in Taikang Industrial Park, Zhoukou City, Henan Province—the “Hometown of Boilers”—AIXBOILER hot air boilers feature high-efficiency burners, insulated chambers, and customizable direct (air through flame) or indirect (via heat exchanger) configurations. Fuels include natural gas, LPG, diesel, and heavy oil, with options for low-NOx combustion.
Ideal for drying processes in food, chemicals, pharmaceuticals, textiles, ceramics, and agriculture, these boilers deliver precise temperature control and uniform air distribution. AIXBOILER prioritizes sustainability with energy-efficient designs and emission controls, serving clients in over 80 countries.
Key Features and Benefits
- High Thermal Efficiency → Optimized combustion and heat recovery.
- Direct/Indirect Options → Clean air for sensitive products (indirect).
- Rapid Heating → Quick response to temperature demands.
- Fuel Flexibility → Easy switching between oil and gas.
- Robust Construction → High-temperature resistant materials for durability.
- Automation → PLC controls for safe, unmanned operation.
Technical Parameters
The table below outlines typical specifications for AIXBOILER oil/gas fired hot air boilers (direct/indirect; custom available):
| Parameter | Specification Range | Notes / Standard Models |
|---|---|---|
| Rated Thermal Power | 0.1 MW – 20 MW (100,000 – 20 million kcal/h) | Common: 0.5 – 10 MW |
| Hot Air Output | 5,000 – 200,000 m³/h | Variable fan speed |
| Outlet Air Temperature | 100°C – 800°C | Direct higher; indirect up to 400°C |
| Thermal Efficiency | 85% – 95% | Higher with recuperators |
| Fuel Type | Natural Gas, LPG, Diesel, Heavy Oil | Dual-fuel burners available |
| Heating Type | Direct Fired or Indirect (Heat Exchanger) | Indirect for contaminant-free air |
| Burner Brand | Riello, Baltur, Weishaupt | Low-NOx configurations |
| Control System | PLC + Touch Screen | Automatic temperature/airflow regulation |
| Air Pressure | 1,000 – 10,000 Pa | Centrifugal fans |
| Dimensions (approx.) | Varies (e.g., 3m – 15m length) | Modular for large units |
| Weight (dry) | 2 tons – 50 tons | Depending on capacity |
| Emissions | NOx ≤ 80 mg/Nm³ (low-NOx ≤ 30 mg) | Compliant with environmental regs |
These parameters ensure reliable, energy-saving hot air supply.
Additional examples of indirect hot air systems with heat exchangers:
Design and Construction Standards
AIXBOILER oil/gas hot air boilers adhere to:
- Primary Standards: GB/T standards (China), optional CE/PED
- Materials: High-temperature alloy steel, insulated casing
- Welding & Inspection: Precision fabrication, pressure/leak testing
- Accessories: Recuperator, filters, ducts, silencers
Optimized for minimal heat loss and uniform airflow.
Types of Oil & Gas Hot Air Boilers
- Direct Fired → Air passes through flame for maximum temperature/efficiency.
- Indirect Fired → Heat exchanger separates combustion for clean air.
Applications
AIXBOILER oil/gas hot air boilers are widely used in:
- Grain and food drying
- Chemical powder/granule drying
- Textile and leather processing
- Pharmaceutical spray drying
- Ceramic and building material curing
- Paint booth and coating lines
They provide contaminant-free or high-heat air as needed.
Quality Assurance and Testing
Each unit undergoes:
- Combustion and airflow testing
- Temperature uniformity checks
- Emission and safety validation
- Third-party certification (TUV, SGS, BV optional)
Ensuring optimal performance and compliance.
Why Choose AIXBOILER?
With family-rooted expertise since 1978, government designation in 2025, and a team of over 60 senior engineers, AIXBOILER delivers customized, eco-friendly hot air solutions. We offer full services: design consultation, manufacturing, installation, and 24/7 maintenance for sustainable industrial heating worldwide.
Specifications
| Gas type | range | Low alarm point | High alarm point | Resolution |
| EX | 0-100% LEL | 20% LEL | 50% LEL | 1/0.1% LEL |
| H2S | 0-100ppm | 10ppm | 35ppm | 1/0.1ppm |
| CO | 0-1000ppm | 50ppm | 150ppm | 1/0.1ppm |
| O2 | 0-30% VOL | 19.5% VOL | 23.5% VOL | 0.1% VOL |
| Please contact the company for other gas combinations | ||||
| Accuracy: | ≤±5% F.S. | |||
| Response time | ≤60 S | |||
| Indication mode: | high definition LCD screen | |||
| Working environment: | Temperature -20ºC~+50ºC; humidity <95%RH condensation | |||
| Working voltage: | DC 12V-28V 500mA | |||
| output | 4-20mA / RS485 | |||
| Protection level: | Ip66 | |||
| shell material: | Die-cast aluminum, explosion-proof and anti-corrosion | |||
| Weight: | less than 1.6kg | |||
| Standby time: | continuously 8 hours working after full charge | |||
| Ex grade: | II 2G Ex db IIC T6 Gb | |||
| Weight | ≈1.6 Kg (net weight of the instrument) | |||
| Explosion | GB15322.1-2019 (The first part of combustible gas detection alarm: | |||
| -proof mark | measuring range of 0-100% LEL point type combustible gas detector) | |||
- Hot Ta