Sapphire Plate | Single Crystal Sapphire Plate Manufacturer

Product Overview

Our Sapphire Plates are manufactured from high-quality single crystal sapphire (Al2O3) and are widely used in optical, semiconductor, electronic, and high-performance industrial applications.

Compared with quartz glass, sapphire offers significantly higher hardness, superior mechanical strength, and excellent thermal stability, making it the ideal choice for harsh or extreme environments. We supply sapphire plates in various shapes and sizes, with precision machining based on your specific requirements.

Key Features

• Exceptional Material:Single crystal sapphire (Al2O3 >= 99.99%).
• Extreme Hardness:Mohs 9 rating provides outstanding scratch and wear resistance.
• Thermal Performance:Excellent thermal shock resistance and stability up to 1600°C.
• Optical Clarity:High transparency across the UV, Visible, and IR spectrum.
• Chemical Inertness:Outstanding resistance to corrosive chemicals and high-pressure environments.
• Precision Finishing:High surface flatness and rigorous thickness control.

Available Shapes & Sizes

We supply sapphire plates in a wide range of configurations:

• Square & Rectangular Plates:For high-pressure viewports and industrial liners.
• Circular Sapphire Plates:Ideal for optical windows and lens substrates.
• Custom-Shaped Components:Precision-machined geometries based on CAD drawings.
• Varied Thicknesses:Supporting ultra-thin substrates to heavy-duty thick plates.

Typical Applications

• Optical & Electronic:Optical windows, laser components, LED substrates, and sensor covers.
• Semiconductor:High-purity substrates for epitaxial growth and wafer processing.
• Industrial & Aerospace:Wear-resistant plates, high-temperature insulating windows, and precision mechanical assemblies for extreme environments.

Customization Options

• Dimensions:Custom length, width, or diameter.
• Thickness:Precision grinding and lapping to specific thickness tolerances.
• Surface Finish:Options for ground finish or double-side optical polishing (S/D 20/10).
• Advanced Machining:Edge chamfering, beveling, and precision hole drilling.
• Batch Sizes:Small batch prototypes and large-scale industrial production supported.

Technical Specifications

Quality Control

Each sapphire plate is meticulously inspected for:

• Dimensional Accuracy:Verification of length, width, and diameter.
• Thickness Consistency:High-precision measurement across the entire surface.
• Surface Flatness:Ensuring optical-grade flatness for precision applications.
• Optical Clarity:Inspection for inclusions or surface defects.
• Edge Quality:Clean, chip-free edge finishing.

Packaging & Delivery

• Individual Protection:Each plate is individually wrapped to prevent surface damage.
• Export-Grade Packing:Shock-absorbent packaging designed for safe international shipment.
• Flexible Shipping:Delivery times are optimized based on order volume and custom machining requirements.

FAQ

Q1: What is the main difference between sapphire and quartz plates? Sapphire offers much higher hardness (Mohs 9 vs Mohs 7), better wear resistance, and higher temperature resistance (1600°C) than quartz, making it suitable for more extreme conditions.

Q2: Can sapphire plates be customized? Yes. We support custom dimensions, thicknesses, surface finishes, and special machining based on your technical drawings.

Q3: What is the maximum working temperature? Sapphire plates can withstand continuous operation at temperatures up to 1600°C.

Q4: Is there a minimum order quantity (MOQ)? No. We support small batch and prototype orders to help with your R&D projects.