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 PRODUCT TYPE
INDUSTRIAL OVEN
MODEL, NUMBER/SERIES
FG SERIES
 OVEN TYPE
GAS
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HIGHLIGHTED FEATURES
 GAS BURNER
 SXB SERIES BLOWER
 PILOT LIGHT
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GENERAL INFORMATION
Very much alike their electric brethrens, these industrial ovens by Airex Industries differ from their siblings by the simple fact that they are instead gas powered. These heated chambers are usually used for a variety of industrial applications such as curing, baking or drying components, parts and/or even final products.
THEORY OF OPERATION
HOW GAS INDUSTRIAL OVENS WORK
- When the operator closes the access hatches and switches the oven on, a 3 minutes purge down cycle which allows the renewal of the air inside the oven in order to eliminate any unburned gas is started.
- The recirculated air within the oven is then heated by a gas burner
- The heated air is then circulated throughout the oven by a fan in order to distribute the temperature as evenly as possible.
- Once the oven reaches its setpoint, the burner switches to its minimum output in order to maintain a stable temperature.
- If necessary a cool off process is initiated by venting the hot air via an exhaust pipe.
(Image coming soon.)
SELECTION CRITERIA
- Operational temperature
- Initial heat up cycle time
- Type of materials to be heated
- Mass and dimensions of the materials to be heated
- Peak/maximum temperature to be attained during the operation
- Projected time to reach the peak temperature
- Final cool down cycle time
- Available voltage
CHARACTERISTICS AND OPTIONS
Our ovens meet the requirements of NFPA86. They are class B ovens, i.e. they are operating at atmospheric pressure. The ovens must not contain any volatile, flammable, or combustible material otherwise additional features must be added in order to meet the requirements for class A ovens.
The following list states the standard specifications of our models FG500-xxxx. Other additional features are also available as options.
STANDARD CHARACTERISTICS
Electrical Specifications
- Operating on 600V, 3-phases, 60Hz;
- Completely wired and tested;
Control Panel
- Terminals for incoming power (disconnect not included);
- Temperature controller 1/16 din with Type J Thermocouple;
- Heating and ventilation switches
- Pilot Light
- Control panel Nema 1 meeting the CSA requirements
- Purge timer
Mechanical Specifications
Blower
- CFM as specified for each model, 2″w.g. @ 70F;
- Selected AIREX SXB Model, class 2S;
- Backward Inclined;
- Shaft Cooler.
Motor
- High Efficiency TEFC;
- Between 1.5 and 10 HP;
- 1800 or 3600 RPM depending on model;
- OSHA Guards;
- V-belts type B.
Insulation
- Mineral Wool ROXUL RHF60;
- Maximum Service Temperature of 1200°F;
- 4″ Insulation for Walls and Ceiling and 2” Floor Insulation.
Gasket
- Glass Fibre High Temperature Gasket with Wiremesh Inconel Insert;
- Maximum Service Temperature 1000°F.
Casing
- External (Painted): Steel ASTM36 20GA;
- Internal: Galvanized Steel 18GA;
- Internal Reinforcement: Steel ASTM36 18GA;
- Reinforcements are placed at Insulation Extremities, i.e. every24”. Truck Wheel Guide;
Paint
- Phosphate Surface Preparation;
- Two Polyurethane Coatings.
Handles/Hinges
- BRIXON 2PC1;
- 3 to 4 Industrial Caliber Hinges.
ELECTRICAL OPTIONS
- Alarm Relay;
- Alarm Strobe Light;
- Alarm Buzzer;
- Open Door Detector;
- Circular Chart Recorder;
- Digital Daily Time Switch, 7 days 24 hours;
- Hour Meter for Blower;
- Incoming Disconnect with Fuses;
- Control Panel Nema 12;
- Temperature Controller1/8 din or ¼ din;
- Programmable Temperature Controller;
- Power Controller SCR.
MECHANICAL OPTIONS
- Additional Features necessary for Class A Ovens;
- Power Exhaust;
- Explosion Hatch and Venting;
- Exhaust Stack;
- Thermocouple Guard;
- Motor Guard;
- Shaft/ Bearing Guard;
- Sliding Doors;
- Automatic Door Opening Device.
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