Description
This is the general-purpose round quartz rod — raw material or component stock specified by diameter, length and surface finish, without the light-guide optical-path requirement or a shaped or formed cross-section.
Dimensions
| Parameter | Specification |
|---|---|
| Diameter | Per drawing; general stock diameters commonly available in small-to-mid range, custom larger diameter on request |
| Standard stock length | 4 ft cited as a standard stock length at some suppliers; longer available subject to minimum quantity |
| Custom cut length | Per drawing |
| Surface | Fire-polished / as-drawn standard; ground or polished on request |
Production Method
Two primary manufacturing routes are cited:
- Continuous method — quartz sand is fed into a furnace, melted and shaped through an orifice at the crucible base to produce rod continuously.
- Flame fusion method — a hydrogen-oxygen flame melts colorless quartz crystal directly.
End Processing
- Cut, chamfered, rounded or tapered ends.
- General laboratory or support rod can use standard tolerance and surface finish.
- Precision rod should specify diameter tolerance, straightness and surface requirement explicitly because these determine processing route and cost.
Application
- Raw material stock for further machining or component fabrication.
- General laboratory support rods.
- Semiconductor process components such as push rods or wafer-carrier structural elements.
- General industrial replacement parts.
Material
Clear fused quartz is standard. Where OH content or optical transmission matters, material grade is selected from the same fused-quartz grade system used across the Quartz Glass Tubes material table.
FAQ
What length does rod stock normally come in?
Four feet is a commonly cited stock length at some suppliers. Custom cut lengths are available, and longer stock may be supplied subject to quantity and manufacturing route.
Do I need to specify tolerance for general-purpose rod?
Not always. General support or lab rod can use a standard commercial tolerance. Precision equipment applications should state diameter tolerance, straightness and surface finish explicitly.
Is this the right page for rod that carries light end-to-end?
No — Quartz Light Guide Rods covers rod specified for optical light transmission through polished end faces.