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TB Quartz Capillaries

TB Quartz Capillaries, made from high-purity fused quartz, are fundamental to optical communication. They offer exceptional inner diameter precision (±0.001mm), ensuring high dimensional accuracy, excellent physical and chemical durability, and superior UV transmission. Designed to precisely position three optical fibers in an isosceles triangular arrangement, these capillaries enable quick curing and bonding with UV adhesive for stable fiber placement. Their fiber-like polishing qualities facilitate the easy attainment of the necessary optical polishing surface for fiber connections, making them suitable for optical connectors, fiber joints, and couplers.

tb quartz capillarie

Specifications of TB Quartz Capillaries

TB Quartz Capillaries Specification Sheet
Material PropertiesMaterial: Quartz,Purity of SiO2>99.99%
Density: 2.2×10³Kg/m³   CTE: 5.5×10-7cm/cm℃
Compressive Strength: 4.8×107Pa (N/m²) (7000psi)
Tensile Strength: >1.1×109Pa (160000psi)
Softening Point: 1683℃   Annealing Point: 1215℃   Deformation Point: 1120℃
Refractive Index: 1.4585
Dielectric Constant: 3.75 (@1MHz)     Insulation Strength: 5×107V/m
Dimensions and Tolerances

OD: Φ1.00mm, Φ1.80mm, Φ2.00mm, Φ2.50m

Tolerance: OD±0.005mm, or according to customer requirements.

Isosceles triangle inner hole side length W: 0.102×0.102×0.102, 0.162×0.162×0.162, 0.254×0.254×0.254
Side length tolerance: W + / - 0.002 mm, or according to customer requirements.
Length: 5mm, 7mm, 15mm, 20mm                                  
Tolerance: L±0.2mm, or according to customer requirements.
Cone Diameter: Φ0.5±0.15mm, Φ1±0.25mm, or according to customer requirements.
Cone Depth: 0.5~1.5mm, 1~2.5mm, or according to customer requirements.
Surface QualityThe cylindrical surface of the product is transparent. The product has no cracks, appearance and surface condition can be made according to customer requirements.
Can be customized according to customer requirements.

Dimension Drawing of TB Quartz Capillaries

Dimension Drawing of TB Quartz Capillaries

Features of TB Quartz Capillaries

Features of TB Quartz Capillaries
  • Material: high purity fused quartz, silica (SiO2) content > 99.99%, softening point > 1650℃, high strength, high wear resistance, high transmittance.

  • Properties: The quartz capillary is melted and drawn at high temperature. The surface is transparent, which eliminates local hidden micro-cracks on the surface. It is not easy to crack and break when dispensing glue to fix the optical fiber, and the dispensing qualification rate is high.

  • The quartz capillary is a transparent surface with high ultraviolet transmission characteristics. The capillary and 3 isosceles triangular optical fibers can be quickly cured and bonded by ultraviolet adhesive to fix and position the optical fibers.

  • Environmental Properties: The production process does not use any chemical solvents, and the materials and production process do not contain or involve substances controlled by the European Union.

  • High dimensional accuracy: Quartz capillary with triangular inner holes are accurately made by CNC wire drawing tower, and optical fiber dimensional tolerance and positioning accuracy are high.

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