OVD Auxiliary Tail Burner & Linear Oxygen Distribution Manifold (Preform Deposition Line)

The OVD Auxiliary Tail Burner & Linear Oxygen Distribution Manifold is an essential consumable heating and gas delivery assembly engineered for Outside Vapor Deposition (OVD) optical fiber preform production lines. Installed at critical transition zones and tail ends of the preform deposition lathe, it provides continuous thermal stabilization and uniform oxygen curtain distribution during high-temperature soot boule growth.

During deposition, rapid thermal cycling at the boule ends can lead to catastrophic preform cracking and uneven taper geometry. Our auxiliary tail burner eliminates thermal gradients by delivering an ultra-uniform auxiliary flame pattern and steady process gas dispersion across its precision-machined multi-orifice faceplate.

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Key Features & Engineering Highlights

• Dual-Inlet Pressure Equalization: Designed with dual symmetrically placed gas inlets to balance internal chamber static pressure, ensuring identical gas velocity across every single micro-orifice along the entire manifold length.
• Precision Multi-Orifice Micro-Drilling: Staggered linear orifice arrays produce a coherent, laminar flame/gas curtain that prevents turbulence, flame flickering, and uneven soot deposition.
• Robust High-Temperature Welded Construction: Fully welded sealed body designed to withstand harsh cleanroom deposition lathe environments, radiation heat from 1600°C+ silica reaction zones, and acidic chloride gas exposure ($\text{SiCl}_4 / \text{GeCl}_4$).
• Boule Stress Relief & Yield Optimization: Maintains precise end-taper thermal profiles, drastically lowering preform tail cracking rates and improving overall rod yield.
• Direct OEM Drop-In Compatibility: Sized and configured to replace standard auxiliary burners and gas distribution rails on legacy and modern OVD deposition lathes without piping modifications.

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Technical Specifications

Parameter	Specification Details
Product Name	OVD Auxiliary Tail Burner / Oxygen Distribution Manifold
Application Equipment	Outside Vapor Deposition (OVD) Preform Deposition Lathes
Primary Function	End-Taper Thermal Stabilization, Auxiliary Heating & Oxygen Gas Distribution
Material Options	High-Grade 316L Stainless Steel / Titanium Alloy / OFHC Copper Inserts
Inlet Configuration	Dual Welded Tubular Inlets with Threaded / Flanged Interface
Orifice Configuration	Linear Multi-Row Micro-Apertures with Balanced End Dispersion
Manufacturing Mode	In-Stock Standard Replacements & Custom Make-to-Print (OEM/ODM)

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Custom CAD & Sample-Based Machining (Make-to-Print)

Different preform lathe designs require customized manifold lengths, orifice row patterns, and mounting pitch. We support end-to-end custom manufacturing from your technical specifications:

• 2D/3D CAD Manufacturing: Send us your STEP, IGES, DXF, or DWG drawings for rapid engineering review and multi-axis machining.
• Sample Duplication & Reverse Engineering: Send your legacy or degraded auxiliary burner assembly for dimensional verification, channel optimization, and precision replication.
• Custom Orifice Patterns: Tailored gas hole counts, row spacings, and dual-inlet center-to-center distances according to your deposition thermal recipe.

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