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Sapphire Optical Window for High Temperature Industrial Sensor
| Share | |
|---|---|
| Categories | Sapphire Optical Windows |
| Brand | FELIX GLASS optical glass Manufacturing base |
| Model | FG-WIN-03 |
| Material | Sapphire (Al₂O₃) 1: High Purity Fused Silica 2: Synthetic Single-Crystal |
| Diameter Range | 0.5mm – 200mm |
| Thickness Range | 0.1mm – 30mm |
| SiO₂ Purity (Quartz) | ≥99.99% |
| Sapphire Purity: | 99.99% Al₂O₃ |
| Long-Term Working Temp (Quartz | 1100–1200℃ |
| Long-Term Working Temp (Sapphire) | ≤1800℃ |
| Thermal Expansion Coefficient (Fused Silica | 5.5 × 10⁻⁷ /°C |
| Sapphire Softening Point | 2040℃ |
| Processing | Round cutting, edge chamfering, double-sided polishing, mounting hole drilling |
| Optional Coating | IR anti-reflection coating, broadband AR coating, UV enhanced coating |
| FOB port | SHENGZHEN SHANGHAI GUANGZHOU |
| Terms of Payment | L/C, D/A, D/P, Western Union |
| Download |  |
Detail Information
Sapphire window engineering for harsh sensing environments
Sapphire Optical Window for High-Temperature Industrial Sensors
A single-crystal sapphire optical window protects sensor optics from heat, abrasion, pressure and corrosive process exposure while maintaining a clear optical path. Felix Glass manufactures custom round, square, rectangular and drawing-defined windows for pyrometers, flame sensors, thermal monitoring, furnace observation and high-temperature process instrumentation.
Mohs 9 surface hardness
High-temperature material stability
Drawing-based OEM machining
Interest
Why Sapphire Is Used in High-Temperature Sensor Windows
Thermal Stability
Sapphire remains mechanically stable across demanding temperature cycles. Final operating limits should be reviewed with the window thickness, mount and coating design.
Useful Optical Transmission
A broad UV-to-infrared transmission range supports visible inspection, flame sensing, pyrometry and selected IR monitoring applications.
Interest
Custom Specification Options
| Material | Optical-grade single-crystal sapphire (Al2O3) |
|---|---|
| Geometry | Round, square, rectangular, stepped, drilled or drawing-defined |
| Optical Finish | Double-side polish with surface quality and flatness defined by the application |
| Edge Work | Fine ground, polished, chamfered, beveled or stepped edges |
| Coating | Application-specific AR or IR coating reviewed by wavelength, angle and temperature |
| Inspection | Dimension, visual quality, surface finish and optical checks per agreed drawing |
For material selection guidance, review sapphire optical glass and related custom optical components.
Desire
Built Around the Sensor Assembly, Not a Generic Stock Window
High-Temperature Validation
Material, mount clearance and thermal-cycle requirements are reviewed together before the drawing is released for production.
Precision CNC Machining
Diameter, thickness, holes, steps, chamfers and edge profiles are machined to suit the sensor housing and sealing method.
Harsh-Environment Protection
Sapphire is selected where the optical interface must tolerate abrasion, pressure or chemically demanding process conditions.
Desire
OEM Manufacturing Workflow
- 01
Application Review
Share wavelength, operating temperature, pressure, atmosphere, mounting method and target quantity.
- 02
Drawing and Coating Review
Engineers confirm feasible dimensions, tolerances, polish requirements and coating band.
- 03
Prototype and Inspection
Sample parts are machined, polished and inspected against the approved specification.
- 04
Repeatable Production
Approved process controls support small batches and ongoing OEM supply.
Action
Engineering FAQ
What information is needed to quote a sapphire sensor window?
Provide the drawing or diameter, thickness, clear aperture, tolerance, wavelength, coating, operating temperature, pressure, sealing method and annual quantity.
Can the window include holes, steps or a special edge?
Yes. CNC machining can support holes, steps, chamfers and drawing-defined profiles, subject to geometry and tolerance review.
How should the temperature rating be specified?
The safe rating depends on the sapphire part, coating, mount, seal, pressure differential and heating or cooling rate. These conditions should be reviewed as one assembly.
Can AR coating be customized for a sensor wavelength?
Yes. Share the operating band, incidence angle and environmental conditions so the coating can be evaluated for the optical and thermal requirement.
Action
Contact Engineering
Request a Grade-A Engineering Review
Send the sensor-window drawing and operating conditions. Felix Glass will review material, geometry, polishing, coating and inspection requirements for a manufacturable proposal.
Need Custom Optical Glass Solution?
Send us your drawing, dimension & coating requirements for fast quotation within 24 hours.
Get Free RFQRelated Products
Custom Precision Optical & Glass Components Manufacturer – Felix Glass Co., Limited.
We supply Industrial Glass, Sapphire Optics, Optical Lenses/Prisms/Filters, Infrared IR Optics, Functional & Display Glass, N-BK7/H-K9L Optical Glass, supporting OEM mass production and laboratory custom prototypes. Flexible MOQ & free sample service available. Fill in the form to download full datasheets and get factory wholesale price within 24 hours.
CONTACT US NOW FOR A QUOTE
We will respond promptly within 1 to 5 hours and provide an optimal, formal quotation within 1 to 2 days. Partnering with us is the smartest choice—start a mutually beneficial partnership today!
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Learn more from our FAQ
- What is the minimum order quantity for custom precision optical glass components?
FELIX OPTICAL GLASS offers highly flexible MOQs to support customer projects, including prototype testing, small-batch trial orders, and high-volume production. All products can be fully customized to your drawings, tolerances, and application standards. Please send us your specifications, and we will reply within 1-5 hours and provide an accurate quotation after careful evaluation within 1-2 days.
- Can I get free glass samples for testing before bulk order?
Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.
- What is the production lead time for custom optical glass components?
A: The production cycle for standard samples is 3-10 working days, while mass production requires 15-35 working days, depending on the complexity of the product and the order quantity. We provide reliable precision optical glass components and fast delivery services for orders from industries such as defense, industrial equipment, medical devices, shipbuilding, robotics, automotive, and aerospace. Please submit your project details so we can provide you with an accurate delivery schedule.
- Are your optical glass products ISO, CE and RoHS certified?
All precision optical glass components from FELIX OPTICAL GLASS comply with ISO quality system standards as well as CE and RoHS requirements. We provide comprehensive test reports, spectral graphs, material certificates, and inspection documents for customer review. Please feel free to request complete certification details and a formal quotation at any time.
- Do you offer one-stop custom optical glass processing services?
Yes. We offer a full range of precision optical glass component processing services, including CNC machining, precision grinding, optical polishing, chemical/physical tempering, vacuum coating (AR anti-reflective coating, AF anti-fingerprint coating, AG anti-glare coating, IR infrared coating), and screen printing. From raw materials to finished products, every step is completed in our own factory. Please tell us your needs, and we will provide you with the most cost-effective solution.
CONTACT US NOW FOR A QUOTE
We will respond promptly within 1 to 5 hours and provide an optimal, formal quotation within 1 to 2 days. Partnering with us is the smartest choice—start a mutually beneficial partnership today!
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With 19 years of experience as a precision optical glass expert, we provide comprehensive and satisfactory customized solutions.
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