Professional Quartz Manufacturing Rooted in Donghai
Zunex Quartz Products Co., Ltd. is situated in Donghai County, Jiangsu Province, China — widely recognized as the crystal and silica capital. We are an integrated enterprise specialized in the professional research, development, custom manufacturing, and global export of experimental quartz glass products and high-grade optical components.
Our core capabilities focus on quartz laser finishing — including micro-drilling, precision grooving, CNC shaping, and clean-edge laser cutting. From standard fused silica tubes to complex custom quartz vessels fabricated strictly to CAD/STEP technical drawings, we deliver reliable, high-purity thermal and optical solutions to clients across the globe.
Enterprise Verified Profile
| Company Name | Zunex Quartz Products Co., Ltd. |
|---|---|
| Business Type | Manufacturer, Trading Company |
| Location | Donghai County, Jiangsu, China |
| Total Employees | 11 – 50 People |
| Annual Revenue | US$2.5 Million – US$5 Million |
| Inquiry Response | 100% Rate · ≤2h Time |
| Seller Reorder Rate | 43% Repeat Orders |
| Key Competency | Laser Finishing & Custom Drawing OEM |
Specialized Quartz Finishing Capabilities
We combine traditional hot flame glassblowing with computer-controlled laser cold-working systems to meet demanding geometric tolerances.
Laser Drilling & Perforation
Micro-hole drilling and porous quartz sheet perforation with clean, chip-free hole walls and tight diameter tolerances down to custom specifications.
Precision Grooving & Slotting
CNC micro-grooving and laser slotting engineered for semiconductor wafer carriers, diffusion boats, and microfluidic research substrates.
Fine Cutting & Edge Polishing
Laser profilometry cutting of irregular shapes, circles, steps, bevels, and optical-grade edge polishing for high-pressure viewports.
Optical Polishing (Double-Sided)
Lapping and dual-side CMP polishing yielding surface roughness Ra ≤ 0.5 nm, parallelism within ≤ 10 arcsec, and scratch-dig ratings suitable for laser optics.
Hot Working & Glassblowing
High-temperature flame welding, tube sealing, standard taper ground joint welding, flange fusion, and vacuum jacket assembly.
Custom OEM to Drawing
Full-cycle engineering evaluation: support for PDF, CAD (DWG/DXF), and 3D STEP formats with prompt DFM review before batch production.
Core Quartz & Sapphire Glass Lines
Engineered for harsh thermal, chemical, and optical environments where high transmittance and low thermal expansion are mandatory.
Fused Quartz Tubes
Transparent and opaque silica tubes, large-diameter process tubes, furnace combustion chambers, and double-bore twin-tube emitters with thermal stability up to 1100 °C.
Optical Quartz Plates & Discs
High-transmittance quartz windows, wafers, and discs fabricated in JGS1 (deep UV), JGS2 (UV-Vis), and JGS3 (infrared) optical grades.
Solid Fused Quartz Rods
Ground and fire-polished fused quartz rods, light transmission guides, structural support pillars, and chemical stirring shafts.
Quartz Boats & Carriers
Precision slotted wafer boats, diffusion cassettes, cleaning holders, and quartz paddles manufactured for high-yield semiconductor and solar cell processing.
Experimental Quartz Instruments
Thermal-shock-resistant quartz beakers, crucibles, flasks, combustion boats, cuvettes, and BET test tubes engineered for analytical laboratories.
Sapphire Sheets & Optical Parts
Single crystal sapphire windows, sapphire substrates, and extreme-wear optical plates delivering extreme Mohs 9 hardness and chemical inertness.
Production Facilities & Quality Operations
Explore real on-site operational photos from our Donghai facility, showcasing precision manufacturing, cleaning, and testing facilities.
Thermal Forming & Glassblowing
Hot working area equipped with precision hydrogen-oxygen burners for flame welding, tube bending, and flanged assembly.
Cold Machining & Lapping
Precision multi-station lapping, planar grinding, and double-side chemical mechanical polishing for optical windows and wafers.
Inspection & Clean Packaging
100% dimensional inspection, bubble/inclusion optical screening, ultra-clean deionized water washing, and vacuum protective packaging.
Industries Relying on Our Solutions
Our high-purity SiO₂ components support mission-critical high-temperature, optical, and corrosive chemical processes worldwide.
Semiconductor
Diffusion tubes, CVD reaction chambers, wafer boats, and etching quartzware.
Solar Photovoltaic
Silicon rod melting crucibles, tube furnace liners, and wafer handling fixtures.
Infrared Heating
Twin-tube emitters, ruby quartz protective sleeves, and IR halogen lamps.
Electronic Information
Substrates, optical isolators, laser windows, and sensor protection covers.
Aerospace & Defense
High-temperature sight windows, thermal insulation components, and radar radomes.
Chemical & Petrochem
Acid-resistant distillation towers, level gauge sight glass, and pyrolyzers.
R&D Institutions
BET sample tubes, quartz cuvettes, XRD specimen holders, and custom flasks.
UV Sterilization & Optics
High UV-transmission ozone and ozone-free quartz sleeves for water treatment.
Drawing-to-Part Custom Workflow
Streamlined engineering collaboration ensuring accurate prototypes and punctual volume deliveries.
Drawing Submission
Submit your CAD, STEP, or PDF drawings with defined tolerances, raw material grades, and quantities.
DFM Engineering Review
Our engineers analyze thermal machinability, suggest grade optimization (JGS1/2/3), and provide an itemized quote.
Precision Fabrication
Precision processing through laser finishing, CNC slotting, grinding, flame blowing, and surface annealing.
Strict Quality Control
Full dimensional inspection, optical surface checking, polariscope stress analysis, and cleaning.
Safe Global Delivery
Anti-shock pearl cotton and reinforced export wooden crate packaging shipped via DHL/FedEx, air, or sea.