Double Side Polished Quartz Tubing OD 20mm x Length 128.5mm

This double side polished quartz tubing, sized OD 20mm x length 128.5mm, features precision optical polishing on both inner and outer walls. Manufactured from high purity fused silica, it delivers excellent UV transmittance, 1100°C heat resistance and superior chemical durability—ideal for spectroscopic optical sleeves, laser housing tubes and semiconductor process sight tubes.

Product Parameters

Key Features

• Double Side Optical Polished – Both inner and outer walls precision polished for consistent optical transmission with minimal stray light scattering and liquid residue.
• High Purity Fused Silica – 99.99% pure quartz material ensures minimal impurity interference for spectroscopic and laser applications.
• Excellent UV Transmittance – Superior ultraviolet light transmission for UV spectrophotometer and atomic absorption spectrometer optical paths.
• 1100°C Heat Resistance – Maintains structural and optical integrity at continuous high temperatures for laser and semiconductor processing environments.
• Uniform Wall Thickness – Consistent inner and outer wall dimensions with smooth, ripple-free surface for predictable optical behavior.

Applications

1. Spectroscopic Instruments

Optical path sleeve for atomic absorption spectrometers and UV spectrophotometers, reducing stray light and improving signal-to-noise ratio in precision measurements.

2. Laser Equipment

Laser cavity protection tube and gas laser discharge outer tube, providing optical-grade transmission while protecting internal laser components.

3. Semiconductor Equipment

Vacuum chamber light-transmitting sleeve and process gas observation tube for semiconductor fabrication and inspection systems.

4. Precision Biochemical Instruments

Micro-volume liquid flow observation tube with minimal residue retention for biochemical analysis and microfluidic applications.

Advantages over Single-Side Polished Tubing

Unlike standard externally polished tubing where the inner wall can trap liquid and scatter light, this double-side polished quartz tube delivers consistent optical transmission, minimal liquid residue and low optical distortion—making it the preferred choice for high-precision optical and spectroscopic applications.