Product Details:
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Customized Support: | OEM | Structure: | Convex Concave |
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Shape: | Aspheric, Spherical Or Irregular | Surface: | Polished |
Transmission: | Over 92% | Coating: | Available |
Processing: | Molding And Grinding And Polishing | Application: | Optics And Lighting |
Highlight: | Explosion-Proof Borosilicate Glass,Glass LED Lenses for Mining Lamp,Borosilicate Glass LED Lenses |
Explosion-Proof Borosilicate Glass LED Lenses for Mining Lamp
1. Material:
Borosilicate Glass (e.g., Schott Borofloat®): Engineered for extreme environments with low thermal expansion (CTE: 3.3 × 10⁻⁶/K) and high chemical resistance.
Flame Path Design: Precision-machined edges/threads to contain explosions via controlled flame quenching.
2. Key Properties:
Explosion-Proof Certification: Complies with ATEX/IECEx Zone 1 and MSHA standards. Prevents ignition of methane/dust mixtures.
Impact Resistance: IK08+ rated to withstand 5J+ impacts from rocks, tools, or falls in mines.
Thermal Shock Resistance: Handles ΔT > 200°C without cracking (e.g., sudden water contact on hot lenses).
Chemical Durability: Resists corrosion from acidic/alkaline mine atmospheres, humidity, and cleaning solvents.
Optical Clarity: >92% light transmission with anti-glare treatment for clear visibility in low-light/dusty conditions.
Flame Retardancy: Non-combustible material (Class A1 fire rating).
3. Primary Functions:
Hazard Containment: Seals LED components, preventing sparks/heat from escaping to ignite flammable gases (e.g., methane).
Optimal Light Output: Maximizes LED efficiency with minimal lumen loss for extended battery life.
Environmental Protection: Blocks dust, water (IP68), and corrosive agents from damaging electronics.
Worker Safety: Eliminates lens shattering (tempered construction) and reduces glare-induced eye strain.
4. Applications:
Mining Cap Lamps: Primary lens for underground LED cap lamps (head-mounted).
Fixed Hazardous Lighting: Explosion-proof mine tunnel fixtures, refuge stations, and conveyor belt lighting.
Portable Inspection Lamps: Handheld mining lamps for maintenance/emergency use.
Coal/Iron Ore/Gold Mines: Certified for methane-rich (Group I) and dust-heavy (Group II/III) environments.
Tunneling & Drilling Rigs: Vibration-resistant lenses for heavy machinery lighting.
Material | Pyrex, borosilicate glass 3.3 |
Diameter Tolerance | +0/-0.2 mm |
Thickness Tolerance | +/-0.2 mm |
Processed | molding, grinding, polishing |
Working temperature | resisting high temperature shock |
Material Quality | no scratches and air bubble |
Transmission | above 92% |
Chamfer | 0.1-0.3 mm x 45 degree |
Surface Coating | Available |
Usage | Lighting system |
Contact Person: Mr. Dai
Tel: +86-13764030222
Fax: 86-21-58508295