The tiny quartz capillary tubes support the precision innovation ecosystem-Mia

The tiny quartz capillary tubes support the precision innovation ecosystem

Quartz capillary tubes are the core precision consumables for chromatography instruments, capillary electrophoresis, microfluidic chips, and microfluidic fluid transportation systems. They appear as thin as hair strands but have extremely strict requirements for material purity, inner and outer diameter tolerances, inner wall smoothness, and temperature resistance and corrosion resistance. High-purity fused quartz capillary tubes have a SiO₂ purity of over 99.999%, with an extremely low thermal expansion coefficient. They can withstand temperatures up to 300°C for a long time and 400°C for a short period. They have excellent ultraviolet light transmission properties, strong chemical inertness, and no ion precipitation in acidic, alkaline, or organic solvent environments, ensuring the accuracy and stability of trace sample detection data. 

Relying on the local high-purity quartz raw materials advantage in Donghai, the enterprise has established an integrated production line for automatic tube pulling, numerical control precision cutting, and dust-free ultrasonic cleaning. It has established a triple quality control system of raw material inspection, process inspection, and finished product inspection, and can customize capillaries with inner diameters ranging from 2 μm to 700 μm. It supports internal wall modification, end sealing, cutting and grinding, and other deep processing services. Small batch sample urgent production and large batch foreign trade orders can be delivered stably. The products have passed ISO9001 quality system and RoHS environmental certification, and are in line with the laboratory and industrial procurement standards of many countries in Europe, America, and Southeast Asia.

Looking at the global market, data shows that the global market for fused quartz capillary tubes is steadily rising, with an annual compound growth rate of approximately 3.7% from 2026 to 2032. Along with the domestic semiconductor equipment replacement, expansion of the life science industry, and increased environmental monitoring demand, coupled with the cost reduction purchasing demands of overseas customers, the recognition of domestic high-precision quartz capillary tubes continues to rise. Different from the traditional extensive processing mode, the Donghai quartz enterprise focuses on refined customization services. It provides selection plans for overseas customers' chromatography laboratories, medical micro-dosing, and industrial high-temperature fluid sensing, as well as pre-sales technical parameter coordination and post-sales usage technical guidance services. This effectively shortens the procurement and commissioning cycle for overseas customers.