Product Description
Convection Flat Glass Tempering Furnace is a continuous thermal processing system that uses forced convection to heat flat glass to the tempering temperature and controlled high-pressure air to quench it, producing tempered safety glass for architectural, appliance, furniture and other applications.
Product Parameter
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Technical date MF-FJ2436-2B2418-4T |
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Parameters(for flat glass) |
Max.Glass size |
2400x3600mm (4-19mm) |
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Min.Glass size |
100x250mm |
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Glass thickness |
4-19mm |
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Output (5mm glass) |
100 square meter/hour |
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Parameters(for bent glass) |
Max.Glass size |
2400x1800mm (4-19mm) |
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Min.Glass size |
400x500mm |
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Glass thickness |
5-12mm |
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Min.radius |
650mm |
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Output (5mm glass) |
15 lots/hour |
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Power |
Heating |
518KW |
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Fan |
250KW |
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Others |
10KW |
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Total |
825KW |
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Other parameter |
Machine dimension |
20x6.5x2.8m (with blower, air collection room) |
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Finished products rate |
97% |
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Energy consumption |
≤4KW/hour/square meter |
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Quality standard |
GB 15763.2-2005 |
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Tempering Process
Glass Loading → Preheating → Forced-Convection Heating → Temperature Equalization → High-Pressure Quenching → Cooling → Unloading
Forced-Convection Heating: High-temperature blowers circulate heated air through the furnace to transfer heat to the glass surface and support controlled heating for different glass specifications.
Temperature Equalization: Multi-zone heating control adjusts the thermal profile across the glass before quenching to support uniform heating.
High-Pressure Quenching: High-pressure air rapidly cools both glass surfaces to create the thermal stress required for tempering.
Cooling: The tempered glass is cooled to a stable handling temperature before unloading.
Production Details
Convection Tempering Features
Forced-Convection Heating: High-temperature blowers circulate heated air through the furnace chamber to increase heat transfer to the glass surface, including coated and Low-E glass.
Multi-Zone Temperature Control: The heating chamber uses multiple temperature-controlled zones, allowing heating parameters to be adjusted for different glass thicknesses and processing requirements.
Ceramic Roller Conveyance: Heat-resistant ceramic rollers transport glass through the heating and tempering sections. Synchronized roller movement maintains controlled glass transfer during processing.
Ceramic-Fiber Thermal Insulation: High-density ceramic-fiber insulation surrounds the heating chamber to reduce heat loss and limit heat transfer to the furnace exterior.
Quenching System
Upper & Lower Airflow: The quenching system directs cooling air toward both glass surfaces through dedicated upper and lower air channels.
Independent Airflow Adjustment: Upper and lower airflow conditions can be adjusted independently according to the selected glass thickness and tempering recipe, supporting controlled cooling across both surfaces.
Controlled Air Pressure: Quenching air pressure is adjusted according to the glass processing parameters to establish the required cooling conditions.
Adjustable Quenching Parameters: Airflow and quenching parameters can be set for different glass thicknesses, sizes and production recipes.
Applications
Architectural Glass
For tempered glass used in windows, doors, curtain walls, partitions and other building applications.
Appliance Glass
For heat-treated glass panels used in ovens, refrigerators, cooktops and other appliances.
Furniture Glass
For tempered glass used in tables, shelves, cabinets and other furniture components.
Decorative & Processed Glass
For glass products requiring thermal strengthening after cutting, edge processing, drilling or other upstream operations.
Installation, Commissioning & Technical Support
Installation covers furnace positioning, mechanical assembly, electrical connection, blower and air-system setup, control-system commissioning and production parameter adjustment.
Commissioning
- Empty-furnace running test
- Temperature calibration
- Roller alignment check
- Air-pressure adjustment
- Real-glass trial run
- Production parameter setup
Operator Training: Training covers furnace operation, recipe setting and routine maintenance.
Technical Support: Remote support is available for fault diagnosis, parameter adjustment and maintenance guidance. Engineering resources in Egypt and Qatar support installation and technical service in the MENA region.
Maintenance & Spare Parts
Routine maintenance covers the furnace heating, glass conveying, convection and quenching systems.
Ceramic Rollers
Check roller surface condition, alignment and rotation to maintain stable glass transfer.
Heating Elements
Inspect electrical condition and heating performance to identify damaged or degraded elements.
Convection Blowers
Check blower operation, air circulation and mechanical condition.
Quenching Fans
Inspect air supply, fan operation and pressure performance.
Temperature Sensors
Check sensor condition and temperature feedback for accurate process control.
Drive Components
Inspect roller drives, transmission components and mechanical movement.
Electrical & Control Components
Check electrical connections, control components and protection devices.
Packaging & Delivery
Furnace Sections: Large furnace sections and assemblies are separated and secured according to the transportation configuration.
Ceramic Rollers: Ceramic rollers are individually protected against impact and vibration during shipment.
Heating Components: Heating elements and other vulnerable components are separately packed to prevent mechanical damage.
Electrical Components: Control cabinets, sensors and electrical accessories are protected against moisture and dust.
Blower & Air System: Blowers, ducts and related components are secured and identified for site installation.
Small Parts: Fasteners, sensors, cables and installation accessories are packed separately and labeled.
Documentation: Installation drawings, electrical diagrams, operation manuals, maintenance information and packing lists are supplied with the shipment.
FAQ
Q: What is the difference between convection and radiation heating in a glass tempering furnace?
A: Convection uses forced hot air to transfer heat to the glass surface, while radiation heating relies primarily on radiant heat from heating elements.
Q: What glass thickness can this tempering furnace process?
A: This furnace is designed for flat glass from 4–19 mm, according to the stated machine configuration.
Q: What is the maximum glass size this furnace can process?
A: The maximum flat-glass size is 2400 × 3600 mm for the listed configuration.
Q: Can the furnace process both flat and bent glass?
A: The listed configuration supports both flat and bent glass processing, with different maximum sizes, thickness ranges and production requirements for each mode.
Q: What is the typical output of a flat glass tempering furnace?
A: For the stated configuration, the rated output is up to 100 m²/h for 5 mm flat glass under the specified production configuration. Actual output varies with glass size, thickness, loading pattern and processing recipe.
Q: What is the power requirement of the furnace?
A: The listed configuration has a total installed power of 825 kW, including heating, fans and auxiliary equipment.
Q: What standard does the tempered glass production follow?
A: The listed equipment is specified according to GB 15763.2-2005 for the applicable tempered glass production requirements.
Q: What information should be provided when requesting a tempering furnace quotation?
A: Provide the required glass size range, thickness range, glass types, Low-E coating information where applicable, target output, available power supply and destination country.
Q: How much factory space is required for the furnace?
A: The listed machine dimensions are approximately 20 × 6.5 × 2.8 m, including the blower and air-collection room.
Q: What should be considered before installing a glass tempering furnace?
A: The installation plan should account for the furnace footprint, equipment access, power supply, compressed air or other required utilities, glass flow direction and space for maintenance and material handling.
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