![\"Semi-Polished-Sapphire-Capillary-Tubes66-300x300](\"https:\/\/www.sic-wafers.com\/wp-content\/uploads\/2025\/12\/Semi-Polished-Sapphire-Capillary-Tubes66-300x300.webp\" "\\"\\"")
![\"Semi-Polished-Sapphire-Capillary-Tubes77-300x300](\"https:\/\/www.sic-wafers.com\/wp-content\/uploads\/2025\/12\/Semi-Polished-Sapphire-Capillary-Tubes77-300x300.webp\" "\\"\\"")
![\"Semi-Polished-Sapphire-Capillary-Tubes88-300x300](\"https:\/\/www.sic-wafers.com\/wp-content\/uploads\/2025\/12\/Semi-Polished-Sapphire-Capillary-Tubes88-300x300.webp\" "\\"\\"")
<\/p>\nOur Semi-Polished Sapphire Capillary Tubes are precision-engineered hollow microstructures fabricated from high-purity single-crystal sapphire (Al\u2082O\u2083). Combining extreme hardness (Mohs 9), excellent thermal stability, chemical resistance, and broad optical transparency, these tubes are ideal for applications requiring both durability and precision. With partially polished internal surfaces, these tubes provide a balance between cost-efficiency and high-performance fluidic or optical properties.<\/p>\n
<\/p>\n
Features:<\/strong><\/p>\n Semi-polished or fine-ground internal bore for controlled smoothness and minimal residue adsorption<\/p>\n<\/li>\n Inner diameters (ID) as small as 0.1 mm; outer diameters (OD) down to 0.2 mm<\/p>\n<\/li>\n Wall thickness as low as 0.1 mm<\/p>\n<\/li>\n High structural strength capable of withstanding extreme pressure and temperature<\/p>\n<\/li>\n Broad optical transmission: 0.3 \u03bcm (UV) \u2013 5 \u03bcm (IR)<\/p>\n<\/li>\n Biocompatible and chemically inert, suitable for medical, analytical, and industrial applications<\/p>\n<\/li>\n<\/ul>\n Specifications:<\/strong><\/p>\n Applications:<\/strong><\/p>\n Medical & Biological Diagnostics:<\/strong> Microfluidic chips, DNA sequencing devices, and blood analyzers, where non-reactive and sterile fluid handling is essential.<\/p>\n<\/li>\n Laser & Optical Systems:<\/strong> Optical sleeves, beam guides, or protective housings requiring partial polishing for controlled light transmission.<\/p>\n<\/li>\n Semiconductor & Electronics:<\/strong> Gas and liquid transport in CVD reactors, vacuum systems, and plasma etching chambers.<\/p>\n<\/li>\n Chemical Analysis & Chromatography:<\/strong> HPLC and GC instruments for trace-level detection with minimal sample adsorption.<\/p>\n<\/li>\n Aerospace & Defense:<\/strong> High-vibration, high-temperature systems for fluid regulation or optical sensing.<\/p>\n<\/li>\n Energy & Petrochemical Fields:<\/strong> High-pressure fluid lines, corrosive gas sampling, and fuel cell systems.<\/p>\n<\/li>\n<\/ul>\n FAQ Highlights:<\/strong><\/p>\n Can the tubes be fully customized?<\/strong> Are these tubes safe for biomedical use?<\/strong> What is the advantage of semi-polished surfaces?<\/strong> Packaging & Shipping:<\/strong><\/p>\n Cleanroom-level packaging with anti-static and shock-resistant materials<\/p>\n<\/li>\n Standard delivery: 3\u20137 business days via UPS, FedEx, DHL<\/p>\n<\/li>\n Custom packaging and expedited shipping available<\/p>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":" Our Semi-Polished Sapphire Capillary Tubes are precision-engineered hollow microstructures fabricated from high-purity single-crystal sapphire (Al\u2082O\u2083). Combining extreme hardness (Mohs 9), excellent thermal stability, chemical resistance, and broad optical transparency, these tubes are ideal for applications requiring both durability and precision.<\/p>","protected":false},"featured_media":1330,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[40,33],"product_tag":[75,76,77,78,79,80,81,82,83,84],"class_list":["post-1266","product","type-product","status-publish","has-post-thumbnail","product_cat-sapphire-tube","product_cat-sapphirealo","product_tag-biocompatible","product_tag-chemically-stable","product_tag-fine-ground","product_tag-high-precision","product_tag-high-temperature-resistant","product_tag-hollow-microstructures","product_tag-optical-applications","product_tag-sapphire-capillary-tubes","product_tag-semi-polished","product_tag-semiconductor-applications","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.sapphire-glass.net\/th\/wp-json\/wp\/v2\/product\/1266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sapphire-glass.net\/th\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.sapphire-glass.net\/th\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sapphire-glass.net\/th\/wp-json\/wp\/v2\/comments?post=1266"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sapphire-glass.net\/th\/wp-json\/wp\/v2\/media\/1330"}],"wp:attachment":[{"href":"https:\/\/www.sapphire-glass.net\/th\/wp-json\/wp\/v2\/media?parent=1266"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.sapphire-glass.net\/th\/wp-json\/wp\/v2\/product_brand?post=1266"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.sapphire-glass.net\/th\/wp-json\/wp\/v2\/product_cat?post=1266"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.sapphire-glass.net\/th\/wp-json\/wp\/v2\/product_tag?post=1266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
\n\n\n\n
\n \nParameter<\/th>\n Specification<\/th>\n<\/tr>\n<\/thead>\n \n Material<\/td>\n Single-Crystal Sapphire (Al\u2082O\u2083)<\/td>\n<\/tr>\n \n Inner Diameter (ID)<\/td>\n 0.1 mm \u2013 3.0 mm (customizable)<\/td>\n<\/tr>\n \n Outer Diameter (OD)<\/td>\n 0.2 mm \u2013 10 mm (customizable)<\/td>\n<\/tr>\n \n Wall Thickness<\/td>\n 0.1 mm \u2013 5 mm<\/td>\n<\/tr>\n \n Dimension Tolerance<\/td>\n \u00b10.005 mm<\/td>\n<\/tr>\n \n Concentricity<\/td>\n \u00b10.05 mm<\/td>\n<\/tr>\n \n Surface Finish<\/td>\n Semi-Polished \/ Fine-Ground<\/td>\n<\/tr>\n \n Transparency Range<\/td>\n 0.3 \u03bcm \u2013 5 \u03bcm<\/td>\n<\/tr>\n \n Hardness<\/td>\n Mohs 9, extremely scratch-resistant<\/td>\n<\/tr>\n \n Melting Point<\/td>\n 2030\u00b0C<\/td>\n<\/tr>\n \n Thermal & Chemical Stability<\/td>\n Excellent<\/td>\n<\/tr>\n \n Pressure Resistance<\/td>\n High<\/td>\n<\/tr>\n \n Electrical Insulation<\/td>\n Excellent<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n \n
\n
Yes, ID, OD, length, wall thickness, and end shapes can be tailored to your specifications.<\/p>\n<\/li>\n
Yes, they are biocompatible, non-toxic, and compatible with standard sterilization methods.<\/p>\n<\/li>\n
Semi-polished surfaces reduce cost while providing controlled smoothness, low adsorption, and reliable optical performance.<\/p>\n<\/li>\n<\/ol>\n\n