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- Product Details
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Quick Details
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Warranty:
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According to the contract
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Shape:
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Curve
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Appearance:
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Bent Tempered
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Standard:
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GB/T19001-2016
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Steel Degree:
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Tempered Glass Half- Tempered Glass
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Thickness of Flat Tempered Glass:
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19mm 15mm 12mm 10mm 8mm 6mm 5mm 3.4mm
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Thickness of Curve Tempered Glass:
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19mm 15mm 12mm 10mm 8mm 6mm 5mm 3.4mm
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Fragment State:
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I II III
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Technics:
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Physically Tempered
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Flatness:
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Conforming Article High Class
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Usage:
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Building Furniture
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Payment:
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Other
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Export Port:
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Qingdao
Quick Details
Product Highlights
1. What Is Bent Tempered Glass?
- Safety First: Upon breakage, it shatters into small, granular pieces—eliminating sharp shards
- Thermal Stability: Withstands extreme temperature variations (up to 250°C differential)
- Optical Clarity: Maintains visual quality with minimal distortion
- Structural Integrity: Engineered to withstand wind loads, impact, and thermal stress
- Design Freedom: Creates seamless curves and flowing forms impossible with flat glass
2. The Manufacturing Process
| Stage | Description |
|---|---|
| Glass Cutting | Precision cutting of flat glass to specified dimensions |
| Edge Processing | Grinding and polishing of edges before bending |
| Hole Drilling / Notching | Cutouts, holes, and notches processed prior to tempering |
| Heating | Glass heated uniformly to 650–700°C in a tempering furnace |
| Bending | Glass shaped over a custom steel mold or between bending rollers |
| Quenching | Rapid cooling with high-pressure air jets to create surface compression |
| Inspection | Optical quality, radius accuracy, and tempering integrity testing |
Bending Types & Capabilities
| Bending Type | Description | Typical Applications |
|---|---|---|
| Cylindrical Bending | Single-axis curvature—uniform radius across the entire panel | Curtain walls, display cases, shower enclosures, walkways |
| Conical Bending | Variable radius—tapered curve (different radius at top vs. bottom) | Escalator glazing, architectural features, spiral staircases |
| Compound Bending | Double curvature—complex shapes curving in two directions | Automotive windshields, specialty architectural elements, domes |
| S-Shaped / Sinusoidal | Reverse curves—multiple opposing bends in one panel | Staircase railings, feature walls, artistic installations |
| Spherical / Dome | Multidirectional curvature—bubble or dome shape | Skylights, domes, conservatories, planetariums |
| Sharp Bends / Tight Radius | Extremely small radius (down to 500mm) | Retail displays, furniture, showcases, corner glazing |
| U-Shaped / Channel | Three-sided bending—two parallel bends | Elevator glazing, display cases, corner windows |
Radius Guidelines by Thickness
| Glass Thickness (mm) | Minimum Cylindrical Radius (mm) | Recommended Radius (mm) | Typical Applications |
|---|---|---|---|
| 3 – 4mm | 500 | 600 – 800 | Small displays, furniture, automotive |
| 5 – 6mm | 600 | 800 – 1200 | Shower enclosures, display cases |
| 8 – 10mm | 800 | 1200 – 1800 | Railings, balustrades, interior partitions |
| 12mm | 1000 | 1500 – 2500 | Curtain walls, structural glazing |
| 15mm | 1500 | 2000 – 3000 | Large architectural features |
| 19mm | 2000 | 2500 – 4000 | Heavy-duty structural applications |
Glass Options for Bent Tempered Glass
| Glass Type | Characteristics | Best Applications |
|---|---|---|
| Clear Float | Standard clarity, slight green tint at edges | General architectural, cost-effective projects |
| Ultra-Clear Low-Iron | Crystal-clear, no green tint—water-white appearance | High-end retail, luxury residences, display cases |
| Tinted Glass | Bronze, gray, blue, green, black—reduces glare and solar heat gain | Solar control, aesthetic facades |
| Low-E Coated | Energy-efficient, thermal insulation | Curved curtain walls, energy-saving applications |
| Reflective Coated | Mirror-like appearance, high solar control | Iconic architectural features, privacy |
| Frosted / Acid-Etched | Privacy with light diffusion | Bathrooms, partitions, decorative features |
| Patterned / Textured | Decorative surface patterns | Interior design, privacy glazing |
| Silk-Screen Printed | Custom ceramic frit patterns | Bird-safe glazing, spandrel panels, branding |
| Laminated Bent Glass | PVB or SGP interlayer for safety and security | Staircases, railings, overhead glazing |
Laminated Bent Tempered Glass
| Feature | Description |
|---|---|
| Construction | Two or more layers of bent tempered glass bonded with PVB, SGP, or EVA interlayer |
| Interlayer Options | Standard PVB / Acoustic PVB / SGP / Colored PVB |
| Benefits | Post-breakage integrity, 99% UV protection, enhanced acoustic insulation, forced entry resistance |
| Applications | Curved balustrades, staircases, skylights, high-security glazing, overhead canopies |
Applications
| Sector | Common Uses |
|---|---|
| Architectural Facades | Curved curtain walls, entrance canopies, feature glazing, corner windows |
| Interior Design | Curved partitions, feature walls, reception desks, spiral staircases |
| Staircases & Railings | Curved glass balustrades, spiral staircase glazing, handrails, guardrails |
| Skylights & Canopies | Barrel vaults, domed skylights, curved canopies, walkway covers |
| Shower Enclosures | Curved frameless shower screens, steam rooms, sauna enclosures |
| Retail & Display | Curved display cases, museum exhibits, luxury showcases, jewelry displays |
| Automotive & Transport | Windshields, sunroofs, bus shelters, train windows, aircraft interiors |
| Furniture | Curved tabletops, shelving, cabinet doors, desk surfaces |
| Pool & Spa | Curved pool fencing, spa enclosures, sauna doors |
| Elevators | Curved elevator cabs, panoramic elevator glazing |
Performance Characteristics
| Property | Value |
|---|---|
| Strength | 5–7x stronger than annealed glass of same thickness |
| Thermal Shock Resistance | Withstands temperature differences up to 250°C |
| Impact Resistance | Superior impact strength compared to annealed glass |
| Breakage Pattern | Shatters into small, blunt granules—minimizes injury risk |
| Optical Distortion | Minimal—within industry standards for bent glass |
| Flatness Tolerance | ±0.5mm per meter (post-bending) |
| Radius Tolerance | ±2mm (varies by radius and thickness) |
| Surface Compression | 69–103 MPa (10,000–15,000 psi) minimum |
| Edge Compression | 67 MPa (9,700 psi) minimum |
Quality Standards & Certification
| Standard | Description | Compliance |
|---|---|---|
| EN 12150 | European standard for thermally tempered glass | Certified |
| EN 1863 | European standard for heat-strengthened glass | Certified |
| ASTM C1048 | American standard for heat-treated flat glass | Compliant |
| ANSI Z97.1 | Impact safety glazing standard | Class A |
| CPSC 16 CFR 1201 | Consumer product safety glazing | Category II |
| 3C Certification | Chinese safety glass certification | Certified |
| ISO 9001 | Quality management system | Certified |
Quality Control
| Inspection Stage | Testing Method | Acceptance Criteria |
|---|---|---|
| Raw Glass | Optical quality, thickness tolerance, surface defects | No bubbles, inclusions, or scratches exceeding spec |
| Edge Processing | Edge quality, chip detection | Smooth, chip-free edges |
| Pre-Bending | Dimensional accuracy of cut glass | ±0.5mm tolerance |
| Post-Bending | Radius measurement, optical distortion, surface quality | ±2mm radius tolerance; minimal distortion |
| Tempering | Surface compression test, fragmentation test | 40+ fragments per 50mm × 50mm area |
| Final Inspection | 100% visual inspection, dimensional verification | Zero critical defects |
Comparison: Bent Tempered vs. Bent Annealed Glass
| Feature | Bent Tempered Glass | Bent Annealed Glass |
|---|---|---|
| Strength | 5–7x stronger | Standard strength |
| Safety | Shatters into small granules | Sharp shards upon breakage |
| Thermal Resistance | High (up to 250°C ΔT) | Low (risk of thermal stress breakage) |
| Post-Breakage Integrity | None—completely shatters | Sharp fragments may fall |
| Applications | Safety glazing, structural, exterior | Non-critical interior, decorative |
| Cost | Higher | Lower |
| Processing | Must be bent during tempering | Can be bent cold (risk of breakage) |
| Code Compliance | Meets safety glazing codes | Does not meet safety glazing codes |
Comparison: Bent Tempered vs. Bent Heat-Strengthened Glass
| Feature | Bent Tempered Glass | Bent Heat-Strengthened Glass |
|---|---|---|
| Strength | 5–7x stronger | 2x stronger |
| Breakage Pattern | Small granules | Large fragments (may remain in frame) |
| Thermal Resistance | High (250°C ΔT) | Moderate (100°C ΔT) |
| Post-Breakage | Shatters completely | Remains intact with cracks |
| Applications | Safety glazing | Spandrel glass, thermal stress applications |
| Cost | Higher | Moderate |
Customization Options
| Category | Options |
|---|---|
| Shape | Cylindrical, conical, compound, S-shaped, spherical, U-shaped, freeform |
| Dimensions | Any length, height, and radius combination |
| Thickness | 3mm – 19mm (tempered) / up to 25mm (heat-strengthened) |
| Edge Finish | Flat polish, seamed, beveled, pencil edge |
| Holes & Cutouts | Precision-drilled holes, notches, slots, custom cutouts (must be processed before bending) |
| Surface Treatment | Sandblasting, acid-etching, silk-screen printing, ceramic frit, digital printing |
| Coating | Low-E, reflective, anti-reflective, self-cleaning |
| Lamination | PVB, acoustic PVB, SGP, colored interlayers |
| Hardware Integration | Custom brackets, clamps, fittings, hinges, standoffs |
Design Considerations
| Consideration | Recommendation |
|---|---|
| Minimum Radius | Consult engineering team for your specific thickness and shape requirements |
| Holes & Cutouts | Must be processed before bending; location and size limited by curvature—provide detailed drawings for feasibility review |
| Edge Finish | Polished edges recommended for safety and aesthetics; required for frameless installations |
| Lamination | Required for overhead applications, balustrades, and safety-critical installations per building codes |
| Tolerances | Account for radius tolerance (±2mm) and dimensional tolerance in frame design |
| Installation | Specialized hardware and experienced installers required; provide anchor points and support calculations |
| Thermal Stress | Consider solar exposure and thermal movement in design; use heat-strengthened or tempered for high thermal load areas |
| Visual Distortion | Some distortion is inherent in bent glass; discuss optical requirements with engineering team |
Packaging & Delivery
| Aspect | Details |
|---|---|
| Packaging | Custom A-frames with padded supports; interleaving paper between panels; edge protectors |
| Export Packaging | Heavy-duty wooden crates with moisture barrier and shock absorption |
| Shipping | Specialized transport for curved glass; flatbed trucks with custom racking |
| Lead Time | 15–30 days depending on complexity, quantity, and radius requirements |
| Minimum Order | Custom per project—prototype to mass production |
Why Choose Our Bent Tempered Glass
- Precision Bending: Advanced tempering furnaces with computer-controlled bending systems for consistent radius accuracy
- Large Format Capability: Up to 3000mm × 5000mm—accommodating large-scale architectural projects
- Full Customization: Any radius, shape, thickness, and finish—from prototype to production
- Integrated Manufacturing: Cutting, edging, drilling, bending, tempering, and lamination all in-house
- Quality Assurance: Rigorous inspection at every stage—from raw glass to finished product
- Global Expertise: Trusted by architects, designers, and contractors worldwide
- Technical Support: Expert guidance on feasibility, radius limitations, and installation requirements
- Safety Certified: All products meet or exceed international safety glazing standards
Recent Projects
| Project Type | Application | Glass Specification |
|---|---|---|
| Luxury Retail | Curved display cases | 10mm clear bent tempered with polished edges |
| High-Rise Residential | Curved curtain wall | 12mm Low-E bent tempered IGU |
| Airport Terminal | Curved balustrades | 8mm + 8mm laminated bent tempered with SGP |
| Museum | Spiral staircase glazing | 10mm + 10mm laminated bent tempered, ultra-clear |
| Automotive Showroom | Curved entrance canopy | 15mm clear bent tempered with silk-screen frit |
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