Borosilicate Capillary Tubing and Rods Supplier & Suppliers

With our vertical high-precision redraw machinery and non-contact dual-axis laser feedback, our standard production holds OD and ID tolerances within ±0.01 mm. For mission-critical optoelectronic ferrule blanks, microfluidic restrictors, or analytical nozzles, we can achieve tolerances down to ±0.002 mm, depending on the ID-to-wall-thickness ratio.

While Synthetic Fused Silica (JGS1) delivers superior deep UV transmission (down to 185 nm) and continuous operating temperatures up to 1,100°C, Borosilicate 3.3 is the preferred material for applications below 450°C operating temperatures. Borosilicate offers outstanding mechanical rigidity, lower processing temperatures, easier flame working and tip sealing, and significantly lower raw material costs, making it the industry standard for high-volume clinical, sampling, and analytical components.

Yes. We offer fully customized end-face terminations, including ultrasonic clean precision score-and-snap cutting, diamond wheel dicing with chip-free edge profiles, controlled heat fire-polishing (to eliminate sharp burrs for biological needle insertions), and precision beveling or flat end-face optical polishing up to 40-20 or 20-10 scratch-dig surface quality.

For standard round borosilicate capillary tubes and solid rods, we support prototype test batches as low as 100 to 500 units, often dispatched within 5 to 7 business days from inventory cane stocks. For entirely custom toolings, specialized multi-bore geometries, or non-standard outside/inside diameter ratios, engineering evaluation prototypes typically deliver within 2 to 3 weeks, backed by complete First Article Inspection (FAI) dimensional reports.

All drawn tubes and rods undergo controlled lehr annealing cycles to relieve internal stresses, verified via polariscope stress birefringence inspection under polarized light. For shipment, delicate glass capillaries are packed into custom-molded cellular foam trays, vacuum-sealed in moisture-barrier bags, and enclosed in heavy-duty export crates engineered to absorb high g-force impacts during international courier handling.