Quartz Capillary Tiรนb

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Quartz Capillary Tube Overview

Quartz capillary tubes are precision quartz glass tubes characterized by small outer diameters and fine inner bores, widely used in laboratory, analytical, and industrial systems where controlled flow, sampling, or optical transmission is required.

Compared with standard quartz tubes, capillary tubes require tighter dimensional control, especially on inner diameter (ID), concentricity, and surface quality. These parameters directly affect flow stability, pressure response, and measurement accuracy in downstream applications.

At GlobalQT, quartz capillary tubes are produced from high-quality quartz glass and processed using dedicated capillary drawing and precision finishing techniques. We supply a wide range of OD / ID combinations from regular inventory, with consistent dimensional repeatability suitable for both prototyping and series use.

In addition to standard stock sizes, custom capillary tubes can be manufactured based on drawings or specific technical requirements, including special inner diameters, cut lengths, tighter tolerances, and secondary processing when required.

Applications of Quartz Capillary Tubes

Quartz capillary tubes are widely used in applications where precise micro-scale flow control or accurate internal dimensions are required. Typical applications include:

Scientific Instrumentation & Analytical Systems
Commonly used in spectroscopy, chromatography (GC / CE), and various analytical and testing instruments, where consistent inner diameter and surface quality are critical.

Microfluidics & Precision Fluid Control
Applied in microfluidic systems, small-volume sampling, and precision fluid transfer, providing stable and controllable micro-scale flow channels.

Electronics & Medical Analytical Devices
Used in electronic components and medical analytical instruments that require high dimensional accuracy, material stability, and cleanliness.

Optical & Laser-Related Components (Selective Applications)
In certain optical, laser, and precision glass assembly applications, capillary tubes may serve as structural or functional components.

Quartz Capillary Tube Stock Size List (Reference)

The table below provides a reference list of our regular stock sizes. Inventory specifications may change dynamically with production and turnover and may not be updated in real time.
If your required size is not listed, please contact us and submit detailed parameters or drawings for feasibility evaluation.

OD (mm)ID (mm)
0.30.17
0.50.126
0.50.3
0.60.13
0.60.2
0.60.25
0.60.4
0.650.4
0.680.47
0.70.126
0.70.25
0.80.5
0.820.5
0.850.44
0.880.44
0.90.6
10.1
10.126
10.15
10.25
10.31
10.4
10.5
10.55
10.58
10.6
10.7
10.8
1.10.1
1.10.4
1.10.8
1.150.42
1.150.45
1.150.64
1.20.15
1.20.66
1.20.9
1.21
1.220.8
1.230.43
1.240.273
1.250.126
1.250.45
1.250.5
1.250.64
1.250.75
1.280.47
1.31
1.360.66
1.381.1
1.490.71
1.50.126
1.50.3~0.5
1.50.4
1.50.5
1.50.6
1.50.65
1.51.2
1.551.05
1.551.25
1.60.1
1.60.46
1.60.7
1.61.2
1.61.4
1.70.35
1.70.4
1.70.7
1.71.4
1.750.9
1.751.3
1.80.126
1.80.135
1.80.23
1.80.25
1.80.305
1.80.4
1.80.405
1.80.45
1.80.5
1.80.7
1.80.85
1.81.2
1.90.85
1.90.9
1.950.5
20.26
20.37
20.4
20.61
20.8
20.9
21.3
21.5
21.6
2.20.06
2.20.15
2.20.37
2.20.67
2.20.87
2.20.9
2.21
2.21.25
2.21.3
2.21.5
2.21.55
2.21.6
2.21.9
2.31.7
2.31.95
2.40.11~0.12
2.41.4
2.41.6
2.41.8
2.41.9
2.42
2.50.127
2.50.13
2.72.1
2.771.91
2.781.8
2.781.81
2.80.8
2.81.6
2.822.24
2.90.7
2.90.9
2.91
2.92
2.951.65
30.14~0.15
30.15
30.4
30.8
30.9
31
31.2
31.3
31.4
31.46
31.5
31.6
31.65
31.7
31.8
32
32.4
3.21.6
3.22.55
3.22.6
3.352.7
3.551.9
3.61.6
3.61.9
3.62.5
3.62.52
3.71.5
3.71.8
3.82
3.82.21
3.82.78
3.82.82
3.82.85
41
41.2
41.8
42
42.6
4.052.85
4.13
4.50.5
4.52.5
4.61.6
4.71.7
50.4
51.6
52.5
53
53.2
5.13.1
5.53
5.814.01
70.8

Quartz Capillary Tube Stock Size List (Reference)

Cuairt-Litir Quartz Capillary Tiรนb

Cuairt-Litir Quartz Capillary Tiรนb
ParamadairMeudTรจid gabhail riAonad
Faid1-2000ยฑ0.2mm
Trast-thomhas a-muigh (OD)0.2-11ยฑ0.03
Trast-thomhas a-staigh (ID)0.06-10ยฑ0.03
StuthanHigh-purity quartz glass
SรฒnrachasEile meudachd agus tolerances faodar manufactured a rรจir riatanasan luchd-cleachdaidh

Ceร rnag Quartz Capillary Tiรนb

Ceร rnag Quartz Capillary Tiรนb
ParamadairMeudTรจid gabhail riAonad
Faid1-2000ยฑ0.2mm
Trast-thomhas a-muigh (OD)0.3x0.3-8x8ยฑ0.03
Trast-thomhas a-staigh (ID)0.1x0.1-6x6ยฑ0.03
StuthanHigh-purity quartz glass
SรฒnrachasEile meudachd agus tolerances faodar manufactured a rรจir riatanasan luchd-cleachdaidh

Diofar Cruthan of Quartz Capillary Tiรนb

Diofar Cruthan of Quartz Capillary Tiรนb
CumadhConical tiรนb, D-a chumadh tiรนb, Elliptical tiรนb, Trapezoidal tiรนb, Hexagonal tiรนb, Triantanach tiรนb, V-a chumadh rod, U-chumadh rod
FhosglaidhIoma-toll (double tuill, ceithir tuill, sia tuill, seachd tuill, ochd tuill, double sreath trรฌ tuill), elliptical, ceart-cheร rnach, ceร rnag, triantan, eccentric, D-a chumadh toll
StuthanHigh-purity quartz glass
RemarkCo-dhiรน tรจid gabhail ri ยฑ0.03 mm, cruthan eile agus mheudan urrainn a bhith air a dhรจanamh a rรจir feumalachdan an luchd-cleachdaidh
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