Product Overview
Convection Flat Glass Tempering Furnace is an industrial thermal processing line that heats flat glass sheets to approximately 700°C and rapidly cools them using high-pressure convection air, increasing structural strength by 4–5 times while ensuring optical clarity.
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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Why Our Convection Tempering Solution?
High-Efficiency Convection Heating: Advanced convection blowers circulate hot air uniformly across the glass surface, reducing cycle times and preventing optical distortion on Low-E coatings.
Zero Mechanical Scratches: Specially coated ceramic rollers coupled with precise frequency-drive synchronization ensure smoother transport, eliminating surface marring during high-temperature cycles.
Energy-Saving Thermal Insulation: High-density ceramic fiber insulation retains heat effectively within the heating chamber, lowering overall factory power consumption per square meter.
Production Details
Quality Control & Applications
Standardized QC Flow:
Raw Material Vet→Geometric Tolerance Check→Mechanical Alignment→ 8-24H Idling + 72H Fatigue Test→ Traceable Inspection Report.
Target Industries:
Architectural: Large-format curtain walls & insulated glass.
Automotive: High-precision edge finishing for curved glass.
Appliance & Furniture: Efficient drilling & shaping for ovens, fridges, and furniture.
Decorative: Textured and complex glass edge profiles.
Global Deployment:
On-site installation, real-load trial runs, and operator training completed within 3–7 days.
Global Turnkey Logistics & Support
Factory-Direct Core Spares: Direct access to matched ceramic rollers, heating elements, and convection fan parts at wholesale prices, skipping middleman markups.
MENA Localized Support: Quick deployment of fluent English and Arabic-speaking technicians from our Egypt and Qatar branches for heavy-assembly calibration, first-batch testing, and shift-operator training.
Guaranteed Response: 30-minute remote diagnostics via system-connect link, with critical electrical or mechanical components dispatched within 24 to 48 hours.
FAQ
Q: How does this furnace ensure flat tempering on high-performance Low-E glass?
A: The top-assisted convection system actively breaks the thermal barrier on Low-E coatings. By blowing uniform hot air directly onto the top surface while adjusting bottom radiation, it maintains absolute temperature balance to prevent bowing or roller waves.
Q: What brand of ceramic rollers do you use, and how do you prevent optical distortion?
A: We use premium, high-density fused silica ceramic rollers with excellent thermal shock resistance. Each roller undergoes mechanical grinding to guarantee concentricity, ensuring zero vibration or marking during processing.
Q: Is the quenching section energy-optimized to control operating costs?
A: Yes. The high-pressure cooling fans utilize inverter-driven variable frequency controls. The system automatically adjusts air pressure and volume based on glass thickness and type, cutting idle power usage significantly.
Q: How long does it take for the furnace to heat up from a cold state to working temperature?
A: Depending on plant ambient conditions, it typically takes 4 to 6 hours to reach a stable, uniform tempering temperature of around 700°C. We recommend scheduling heat-ups prior to early shifts.
Q: What critical electronic systems manage the thermal zones?
A: The entire heating grid is managed by a Siemens PLC integrated with a closed-loop temperature control module. Solid-state relays monitor hundreds of individual thermal zones to maintain temperature variances within strict margins.
Q: What are the primary wear parts, and what is their typical replacement cycle?
A: Main consumables include thermocouple sensors, Kevlar ropes for the unloading table, and heating elements. With standard scheduled maintenance, the heating elements and rollers perform reliably for years without replacement.
Q: Can this furnace line be linked to existing upstream pre-processing software?
A: Yes. The PLC architecture features standard industrial Ethernet interfaces, allowing it to sync directly with ERP line control tracking to optimize glass entry intervals automatically.
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