HOT AIR HEATER SANGI ELECTRIC

SANGI ELECTRIC Industrial Hot Air Heater (SANGI Electric)

SANGI ELECTRIC Hot Air Heater is an electric heater designed to heat air in industrial applications. It works in conjunction with a blower to direct airflow through the heating unit and receive warmth, before sending heated air to where it's needed.

It is suitable for processes requiring hot air such as paint curing, film shrinking, and industrial machinery heating systems. Customization of power requirements, size, and installation configurations can be tailored according to user needs.

The heater structure is made from stainless steel and uses a stainless steel finned heater element which increases the surface area for heat transfer to the air with flanges designed for mounting with blowers as per design specifications.

Products support custom manufacturing based on samples or designs, ensuring suitability for hot air systems and operational conditions of different machinery types.

Features

• Brand: SANGI ELECTRIC
• Product Type: Hot Air Heater
• Industrial hot air heater
• Uses electrical energy to generate heat
• Designed for use with a blower
• Directs airflow through the heater to receive warmth
• Constructed from stainless steel
• Uses a stainless steel finned heating element
• Fins on the heater increase surface area for heat transfer to air
• Has flanges designed for mounting with blowers
• Offers power options based on usage requirements
• Custom manufacturing according to design and sample specifications is available
• Suitable for paint curing and film shrinking processes
• Adaptable in industrial machinery heating systems

Technical Specifications

Specifications	Details
Brand	SANGI ELECTRIC
Product Name	Hot Air Heater
Product Type	Industrial Electric Air Heater
Heating Method	Electrical Resistance Heating
Heating Element	Stainless Steel Finned Heater

Structure Material Stainless Steel Air Supply Designed for Use with Blower Mounting Flange for Blower Connection Rated Wattage Selected or Custom Designed According to Application Rated Voltage Subject to Selected Heater Specification Heater Dimensions Custom Made According to Drawing or Sample Airflow Requirement To Be Determined According to Heater Design Operating Temperature Subject to Heater Design and Operating Conditions Manufacturing Type Custom Made / Made to Order Application Industrial Hot Air Heating, Paint Drying, Shrink Film Processing

Note: The catalog does not specify standard values for wattage, voltage, airflow rate, or maximum temperature for this item. These details must be confirmed according to the model specifications or custom order.

How a Hot Air Heater Works

A hot air heater operates on the principle of converting electrical energy into thermal energy using electric resistance heating elements. Heat is transferred through stainless steel tubes and fins to the air flowing through it.

In operation, the blower directs airflow through the heater assembly. As the air comes in contact with the high-temperature surface of the heater, heat transfer occurs, raising the temperature of the air before it is delivered to the work area.

The performance depends on wattage, heater surface area, airflow rate, incoming air temperature, and system installation characteristics.

Stainless Steel Finned Heating Element

The hot air heater uses a stainless steel fin heating element. The fins increase the surface area for heat transfer from the heater to the air.

Increasing the surface area helps ensure proper heat exchange for systems with air flow through the heater, where the size and shape of fins must be designed to match electrical power and airflow volume.

Even though the heater has fins to help dissipate heat, it is still necessary to allow sufficient air flow as specified by the manufacturer to avoid abnormally high temperature accumulation.

Structure and Installation with Blower

The heater features a stainless steel structure and flanges for installation with a blower according to catalog data. The flange configuration and mounting size must be compatible with the selected air delivery equipment.

The design should consider airflow volume, static pressure, pressure loss through the heater, and desired air temperature to ensure proper system operation.

Temperature sensors and overheat protection devices should be positioned in relation to the direction of airflow and the location of the heater.

Application in Paint Drying

The hot air blower can be used as a heat source for paint drying systems, delivering warm air through areas requiring moisture reduction or aiding in the drying process under appropriate conditions.

The temperature and duration of heating must be set according to the type of paint, workpiece material, and production process requirements.

For paints or coatings that release flammable vapors, the risk of flammable atmosphere should be assessed, and a heating system designed and certified for use in such areas should be used. General-purpose electric heaters should not be directly employed.

Application in Shrink Film Processing

The Hot Air Heater can be applied to provide warm air to shrink film according to material characteristics, suitable for designing hot air systems in packaging applications requiring controlled heat.

Air temperature, volume, and contact time should be selected appropriately based on the type of film to avoid uneven shrinking or damage to products.

Custom Made Hot Air Heater

SANGI ELECTRIC supports custom-made Hot Air Heaters according to design samples by specifying details for heating system requirements and installation space constraints.

The information that should be prepared for design and quotation includes:

...

Design Information	Required Details

Heating Application Type of work, such as paint curing, shrink film blowing, or heating processes Required Air Temperature Required hot air temperature Inlet Air Temperature Air temperature before the heater Airflow Rate Air flow rate, such as m³/h or CFM Available Power Supply Voltage and electrical system available Heater Wattage Required wattage or have the manufacturer calculate based on heat load Heater Dimensions Installation area and required size Blower Connection Flange size and blower connection type Temperature Control Type of temperature control desired Operating Environment Environmental temperature, humidity, and safety requirements Quantity Desired production quantity

Examples and Usage Guidelines (Applications)

• Air heating system designed for paint curing applications
• Film shrink blowers and packaging systems
• Air heating in manufacturing processes
• Drying parts or materials suitable for the process
• Machinery requiring hot air for production processes
• Heating systems combined with industrial blowers
• Designing hot air systems for specific machinery
• Upgrading or replacing heater units in existing machines

Guidelines for Selecting a Hot Air Heater

• Determine the required operating temperature
• Check the inlet air temperature
• Specify airflow rate and pressure that the blower can provide
• Calculate heat load to select appropriate wattage
• Verify voltage and number of phases in the electrical system
• Select heater size and flange type suitable for the blower
• Consider air velocity through the heater and pressure drop
• Determine temperature sensor location and control system
• Install overheat protection systems
• Check the production order format and maintenance details

Important Usage Precautions

• Use the specified voltage for the heater
• Adequate air flow rate must be maintained during heating operation
• An airflow monitoring device or interlock system should be installed to prevent the heater from operating when the blower stops or insufficient air volume is present
• Install an overtemperature cut-off device that operates independently of the control circuit
• Adequate temperature control systems suitable for the production process must be in place
• Proper grounding and electrical safety devices should be installed
• Avoid touching the heater or air ducts when they are hot
• Beware of flammable materials near the warm air exhaust outlet
• Do not use general-purpose heaters in areas with flammable vapor or combustible dust without appropriate design and certification
• Check the structural stability and mounting flanges
• Cut off power supply and wait for the system to cool down before maintenance
• Inspect heating components and wiring at appropriate intervals

Important Notes Before Ordering (Important Notes)

• The product is a Hot Air Heater set designed for use with Blower
• The structure and heating elements are made of stainless steel as per the catalog information
• Mating flanges for installation with blower are provided
• Custom design and production based on drawings or samples are supported
• Electric power, voltage, and heater size must be confirmed before ordering
• The maximum temperature and air flow rate must be specified according to the actual design
• The catalog does not confirm that a blower, temperature controller, or temperature sensor is included in the product set
• SPECIFICATIONS of Duct Heater or Aluminium Industrial Heater should not be used as substitutes for Hot Air Heater
• Provide drawings or air system information to allow the manufacturer to review the design
• Check the delivered equipment list, warranty conditions, and production time before ordering