Shanghai Longway Special Glass Co., Ltd.
| Payment Terms | D/P,T/T,Western Union |
| Supply Ability | 20000 Pieces per Month |
| Packaging Details | electrolytic capacitor paper,foam,carton |
| Customized support | OEM |
| Structure | convex concave |
| Shape | Aspheric, spherical or irregular |
| Surface | Polished |
| Transmission | over 92% |
| Coating | available |
| Processing | molding and grinding and polishing |
| Application | Optics and lighting |
| Brand Name | LONGWAY |
| Model Number | OG0014351 |
| Certification | ISO9001 |
| Place of Origin | Shanghai, China |
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Product Specification
| Payment Terms | D/P,T/T,Western Union | Supply Ability | 20000 Pieces per Month |
| Packaging Details | electrolytic capacitor paper,foam,carton | Customized support | OEM |
| Structure | convex concave | Shape | Aspheric, spherical or irregular |
| Surface | Polished | Transmission | over 92% |
| Coating | available | Processing | molding and grinding and polishing |
| Application | Optics and lighting | Brand Name | LONGWAY |
| Model Number | OG0014351 | Certification | ISO9001 |
| Place of Origin | Shanghai, China | ||
| High Light | 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 |
Company Details
Business Type:
Manufacturer,Agent,Exporter,Trading Company,Seller
Year Established:
2008
Total Annual:
1000000-5000000
Employee Number:
30~100
Ecer Certification：
Verified Supplier
Introduction Shanghai Longway Special Glass Co., Ltd. has been a professional supplier in the glass industry for over 20 years. With its expertise spanning across various fields, including optics, laser, imaging, and lighting etc., the company has established itself as a trusted partner for busines... Introduction Shanghai Longway Special Glass Co., Ltd. has been a professional supplier in the glass industry for over 20 years. With its expertise spanning across various fields, including optics, laser, imaging, and lighting etc., the company has established itself as a trusted partner for busines...
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