Original BOCI Seal Ring for Protective Lens 34x5mm

Prevents Contamination & Lens Damage

NOVA LASER brings you Original BOCI Seal Ring for protective lens 34x5, it is the factory-original O-ring gasket designed specifically for 34mm diameter, 5mm thick industrial laser protective lenses. This essential sealing component creates an impermeable barrier against cutting contaminants—preserving lens clarity, beam quality, and preventing costly optical damage in high-power laser systems.

Why Original BOCI Specification is Critical:

• Precision 34x5mm Fit - Engineered to exact tolerances for perfect compression
• High-Power Rated - Formulated for high-wattage laser cutting/engraving applications
• Chemical Resistant - Withstands plasma smoke, metal oxides, and cooling agents
• Zero Optical Interference - Material prevents outgassing that clouds lenses

Protects Your High-Value Optical Investment:
✓ Beam Integrity - Maintains consistent focal point and cutting precision
✓ Lens Longevity - Prevents abrasive particles from scratching lens surfaces
✓ Reduced Downtime - Eliminates frequent cleaning from edge contamination
✓ Full Warranty Compliance - Using original parts maintains system warranties

Technical Specifications:

• Lens Compatibility: 34mm diameter × 5mm thickness
• Material: Premium Fluorosilicone (FVMQ) or High-Temp Viton®
• Operating Range: -30°C to +280°C (-22°F to +536°F)
• Pressure Rating: Suitable for assisted gas cutting environments
• Color: Industry-standard black
• Certification: OEM manufacturing standards

Critical Replacement Indicators:

• Visible Flattening - Seal no longer round in cross-section
• Brittleness/Cracks - Material degradation from heat cycles
• Lens Fogging - Contamination bypassing seal
• Focus Drift - Lens movement from improper compression
• After Every 3rd Lens Change - Preventive maintenance schedule

For Use With:

• BOCI Brand Laser Cutting Heads
• 34x5 mm (1") Standard Protective Lenses
• Most 1" lens holder assemblies
• Replacement during routine lens cleaning/maintenance

When to Replace Your Seal Ring:

• During every lens change/cleaning (recommended)
• Visible cracks, flattening, or brittleness
• Lens contamination despite cleaning
• Poor focus consistency
• After any lens assembly disassembly

Symptoms of Failed Seal Ring:

• Frequent lens contamination (daily cleaning needed)
• Uneven cutting edges
• Focus inconsistency
• Smoke residue on lens edges
• Reduced lens lifespan

Maintenance Tip:
Always replace the seal ring when changing lenses— a seal ring can protect a lens from permanent damage.