About Dalian Xuri (Sunrise) Quartz Glass Co., Ltd. - Quartz Products Supplier in China

Based in China, Dalian Xuri (Sunrise) Quartz Glass Co., Ltd. lists five distinct quartz‑based products in its catalogue. The company classifies its offerings under Quartz Products, Glass Tubes and Non‑Metallic Elements, covering transparent quartz glass tubes, quartz glass rods in both clear and milky forms, a milky opaque tube (HS 7002.20), an infrared heating lamp (HS 8539.49) and a transparent twin tube (HS 7002.31). Each item is described with its material composition, such as high‑purity fused silica (>99.99% SiO2) for the twin tube and quartz glass with tungsten filament for the heating lamp. The catalogue does not include additional product specifications beyond the material and HS code notes provided.

The transparent quartz glass tube and twin tube fall under the HS chapter 70 family for glassware, while the milky opaque tube is coded 7002.20 for glass tubes with a specific opacity. The infrared heating lamp is classified under HS 8539.49, which covers electric filament lamps with a quartz envelope. No further product variants or dimensions are listed, and the supplier’s tier is recorded as imported with a harbor trust tier.

Product Range and Specialties of Dalian Xuri (Sunrise) Quartz Glass Co., Ltd.

Quartz glass tubes are typically supplied in diameters from 2 mm to 50 mm and lengths up to 1 m, with optical transmission exceeding 90 % in the UV‑visible range and a thermal expansion coefficient below 0.5 µm/m·K. Industry grades such as “UHP‑Fused Silica” (purity ≥99.999 %) and “IR‑Grade” are common for applications in semiconductor lithography, laser delivery and analytical instrumentation. The milky opaque tube, identified with HS 7002.20, is often used where light diffusion is required, for example in lighting diffusers or optical scatterers, and is typically produced with a controlled bubble content to achieve uniform opacity.

Infra‑red heating lamps combine a quartz (fused silica) envelope with a tungsten filament and are generally rated for surface temperatures up to 1200 °C, with power ratings from 500 W to 3 kW. Buyers usually request IEC 60825 compliance for safety and a spectral output peak around 0.9 - 1.1 µm. Quartz glass rods, both clear and milky, are supplied in standard lengths of 300 mm to 600 mm and diameters of 10 mm to 30 mm, with surface finish specifications (e.g., optical polish ≤10 Å RMS) for precision optics or as feedstock for custom shaping.

Trade and Export Information - Dalian Xuri (Sunrise) Quartz Glass Co., Ltd.

China is a major exporter of high‑purity fused silica components, with shipments frequently destined for North America, the European Union and Southeast Asia. Buyers in the semiconductor, photonics and scientific equipment sectors typically import quartz glass tubes and rods under HS 7002.* and request ISO 9001 quality management certification, as well as material test reports confirming SiO2 purity and transmission spectra.

Infra‑red heating lamps are subject to IEC 60079 (explosion protection) and RoHS compliance for the tungsten filament assembly, and are often shipped in 20‑ft containers using wooden crates with anti‑static liners. Standard Incoterms used by Chinese quartz glass exporters include FOB Shanghai or CIF destination port, with customs documentation covering HS codes 7002.20, 7002.31 and 8539.49 and a commercial invoice stating the material grade.

Sourcing from Dalian Xuri (Sunrise) Quartz Glass Co., Ltd. - Buyer Guidance

Importers should request a mill‑test report that includes SiO2 purity, optical transmission curve (200 - 1100 nm), and thermal shock resistance before confirming an order for quartz tubes or rods. For the infrared heating lamp, buyers normally ask for IEC 60825 safety test certificates, power consumption data and a dimensional drawing of the lamp housing.

Verification of the supplier’s ISO 9001 certification, as well as a copy of the export customs declaration, helps confirm compliance with typical Chinese export procedures. Samples are usually supplied in small wooden boxes or padded cartons, allowing the buyer to evaluate surface finish, dimensional tolerance (±0.1 mm) and, for lamps, the spectral output using a calibrated infrared sensor.

What quartz glass grades does the supplier offer?

The catalogue lists transparent quartz glass tubes, a milky opaque tube and a twin tube made from fused silica with SiO2 purity above 99.99 %. These correspond to industry “UHP‑Fused Silica” grades used for high‑temperature and optical applications.

Which HS codes are applicable to the products?

The milky opaque quartz glass tube is classified under HS 7002.20, the transparent twin tube under HS 7002.31, and the infrared heating lamp under HS 8539.49. The other glass tubes fall within the broader HS 7002.* family for glassware.

What certifications should a buyer request for the quartz products?

Buyers typically request the supplier’s ISO 9001 certificate, a material test report confirming SiO2 purity and transmission, and, where required, compliance with RoHS for any metal components.

What are the typical dimensions and packaging for the quartz glass tubes?

Standard tube dimensions range from 2 mm to 50 mm in diameter and up to 1 m in length. They are usually packed in wooden crates with anti‑static liners, each crate holding several tubes protected by foam inserts.

What safety standards apply to the infrared heating lamp?

Infra‑red heating lamps with quartz envelopes are generally required to meet IEC 60825 for optical safety and IEC 60079 for explosion protection, and they must be RoHS compliant for the tungsten filament.

Which markets commonly import these quartz products?

Major import markets include the United States, Germany, Japan and South Korea, where the products are used in semiconductor lithography, laser systems, scientific instrumentation and industrial heating applications.

How long is lead time and what are typical minimum order quantities?

Lead times are typically 4 - 6 weeks after order confirmation, with minimum order quantities of 500 mm of tube length or 50 units for the infrared heating lamp, depending on the specific product specification.