Wholesale Transparent Triple Bore Supplier & Suppliers

We manufacture triple bore tubing primarily from synthetic fused silica (JGS1 UV-grade, high purity with OH < 2 ppm), optical fused quartz (JGS2 visible/UV grade), low-OH infrared quartz (JGS3), and standard high-borosilicate glass 3.3. For specialized laser filtering applications, we also fabricate samarium-doped (Sm-doped) glass and yellow UV-blocking doped quartz triple bore flow tubes.

With our computerized thermal draw towers and in-line laser extensometers, we routinely maintain inner diameter (ID) tolerances within ±0.005 mm (±5 μm) and outer diameter (OD) tolerances within ±0.015 mm. Center-to-center bore pitch tolerance is held to ±0.015 mm, ensuring complete alignment with mating laser pump cavity endplates and microfluidic manifold connectors.

Yes. While symmetrical triangular arrangements (equilateral configurations) are standard for dual-lamp/single-rod laser pump chambers, we frequently fabricate asymmetrical multi-bore tubes. This includes in-line linear triple bores, unequal bore diameters (e.g., a central 6.0 mm rod bore flanked by two 4.0 mm flashlamp bores), and custom external shapes (such as oval, flat-ground, or rectangular outer profiles).

For standard tooling profiles, prototype sample orders start at just 2 to 5 pieces to support engineering R&D and optical bench validation. For completely custom preform geometries requiring dedicated graphite mandrels or custom draw dies, tooling setup takes approximately 10 to 14 working days, followed by sample delivery within 7 days. Batch wholesale production runs (1,000 to 50,000+ pieces) scale seamlessly with tiered volume discounts.

Because our tubing is produced via high-temperature oxyhydrogen flame thermal redrawing rather than internal mechanical drilling, the internal channel surfaces are inherently fire-polished during the draw process. This achieves exceptional inner wall smoothness (Ra < 1 nm) free of microscopic micro-cracks, subsurface damage, or mechanical tool marks that compromise burst pressure.

Tube ends can be supplied diamond-wheel precision saw-cut (tolerance ±0.2 mm), fine-ground, optically flat polished (flatness λ/4 to λ/10 per end), or fire-polished with smooth radiused outer and inner bevels. We also machine custom external O-ring sealing grooves, steps, and threads using ultrasonic 5-axis CNC grinding centers.

Our international packaging standard isolates every single tube in an individual high-density slotted polyethylene or EVA foam cell inside a rigid clear acrylic tube or vacuum-sealed anti-static plastic tray. These primary units are nestled within shock-absorbing bubble wrap inside multi-wall export cartons and reinforced wooden shipping crates, achieving a >99.9% damage-free delivery rate via DHL, FedEx, air freight, or sea cargo.