Call Us



Half Round Quartz Rods

The half-round quartz rod is basic structural components of optical communication devices. It has high precision, high hardness, and excellent environmental resistance.Its coefficient of thermal expansion are the same as that of optical fiber.It is used in optical devices such as optical couplers, ribbon fiber welding protectors, high-power lasers, etc.The main manufacturing method is to prefabricate the quartz rod, clamp it above the high-temperature graphite furnace after cleaning, and send it into the heart of the high-temperature graphite furnace protected by inert gas to perform a series of program operations such as continuous pulling, drawing, and cutting, directly and quickly produce quartz rod with transparent surfaces in large quantities, with high dimensional accuracy and suitable for mass production. It can significantly reduce component costs and improve component quality.

fused quartz rod
quartz rod price

Specification of Half Round Quartz Rods

Half Round Quartz Rods product parameter table
ProjectIndicator requirements
Material propertiesQuartz Quartz, Silicon Dioxide (SiO2) content>99.9%
Density: 2.2×10³Kg/m³ Thermal expansion coefficient: 5.5×10-7cm/cm℃
Compressive strength: 4.8×107 Pa (N/m²) (7000psi)
Tensile strength: >1.1×109 Pa (160000psi)
Softening point: 1683℃ Annealing point: 1215℃ Deformation point: 1120℃
Refractive index: 1.4585
Dielectric constant: 3.75 (@1MHz) Insulation strength: 5×107V/m
Dimensional accuracyOuter diameter OD: φ0.5≤OD≤φ10mm
Width:W±0.1mm according to customer requirements.
Height:H±0.05mm according to customer requirements.
Arc Angle R: High temperature drawing process rounded angle, R < 0.1mm.
Length L: L=0.5~100mm±0.2mm, the length can be processed according to customer requirements
Surface requirementsThe product has no cracks, both end surfaces are ground surfaces, and the cylindrical surface is transparent.

Dimension Drawing of Half Round Quartz Rods

Dimension Drawing of Half Round Quartz Rods

Features of Half Round Quartz Rods

Features of Half Round Quartz Rods
  • Material: High-purity fused quartz, silicon dioxide (SiO2) content >99.9%, softening point >1650°C, high strength, high wear resistance, high light transmittance.

  • Usage Properties: The half round quartz rod is melted and drawn at high temperature. The surface is transparent, which eliminates surface micro-cracks and local surface hidden cracks in the optical fiber positioning holes. The half round quartz rod has high strength and is not easy to crack and break when dispensing glue to fix the optical fiber. The dispensing is qualified. The rate is high.

  • Environmental Properties: The hydroelectric composite wire drawing production process does not use any chemical solvents, and the material and production process do not contain or involve controlled substances required by the EU RoHS directive and Reach regulations.

  • Quality Stability: Through the closed-loop control of the CNC host, feeding mechanism, traction mechanism, and laser rangefinder, half round quartz rod with the required diameter and inner diameter can be accurately drawn. The precision consistency is very high and the production stability is excellent.

  • Customized Structure: Using a high-precision grinder to finely grind the half round quartz rod plane, various structures can be customized to meet the requirements for connecting and fixing optical devices.

optical lenses wholesale
Get in Touch
For better future and business, let’s get started now.
Contact Info
Whether you have a question about product features, shipping, site policies or anything else, we're here to help ad ready to answer your questions.
Bldg. A Baolong Industrial Zone #491 Dalang South Rd. Longhua District Shenzhen China
Request a Free quote

Related Quartz Rods