Product Overview

Custom Sapphire Stepped Components are manufactured from high-purity single-crystal sapphire (Al₂O₃) using advanced precision machining technologies. With exceptional hardness, excellent wear resistance, outstanding thermal stability, and superior chemical resistance, sapphire is an ideal material for demanding semiconductor, optical, laser, medical, and aerospace applications.

Our sapphire stepped parts can be customized with multi-level steps, thin-wall rings, grooves, chamfers, and complex geometries according to customer drawings or samples. Through a complete in-house manufacturing process—from crystal growth to precision machining, optical polishing, and final inspection—we ensure outstanding dimensional accuracy, surface quality, and product consistency for high-performance industrial applications.

Features

• High-purity single crystal sapphire (Al₂O₃)
• Mohs hardness of 9 for superior wear resistance
• Excellent resistance to high temperatures and thermal shock
• Outstanding corrosion resistance against most acids and alkalis
• High mechanical strength and electrical insulation
• Optical-grade polishing available for transparent applications
• Micron-level machining accuracy for complex stepped structures
• OEM & ODM customization based on drawings or samples

Manufacturing Process

Every sapphire stepped component is produced through a strict quality-controlled manufacturing process to ensure excellent optical quality and dimensional precision.

① Sapphire Crystal Growth
High-quality sapphire crystals are grown using KY, HEM, or EFG methods to achieve excellent crystal integrity and material consistency.

② Crystal Orientation & Slicing
The crystal is accurately oriented and sliced into blanks according to customer specifications while minimizing internal stress.

③ Precision CNC Machining
Diamond tooling and ultra-precision CNC equipment are used to machine the outer diameter, inner diameter, stepped profiles, grooves, and other customized features.

④ Fine Grinding
Multiple grinding operations improve dimensional accuracy, flatness, concentricity, and geometric precision.

⑤ Optical Polishing
Single-side or double-side polishing provides high surface smoothness and optical transparency when required.

⑥ Ultrasonic Cleaning & Inspection
Each component is ultrasonically cleaned and undergoes comprehensive dimensional, surface, and appearance inspections.

⑦ Packaging & Delivery
Products are packaged in clean-room compatible materials to prevent contamination and ensure safe transportation.

Manufacturing Flow

Crystal Growth → Orientation → Slicing → CNC Machining → Step Structure Processing → Fine Grinding → Optical Polishing → Cleaning → Quality Inspection → Packaging

Typical Specifications

Applications

• Semiconductor equipment components
• Wafer support rings
• Vacuum system insulating parts
• Optical windows and holders
• Laser equipment
• Medical devices
• Precision measuring instruments
• High-temperature furnace components
• Aerospace precision parts

Custom Manufacturing Capabilities

We provide:

• Multi-step precision machining
• Thin-wall sapphire ring fabrication
• Optical-grade polishing
• High concentricity machining
• Precision chamfering
• Grooving and drilling
• Complex custom geometries
• Prototype development
• Small-batch and mass production

Why Choose Us?

• Complete in-house production from sapphire crystal growth to finished components
• Advanced CNC machining and ultra-precision polishing equipment
• Rich experience in manufacturing semiconductor and optical sapphire parts
• Strict quality inspection with micron-level dimensional control
• Fast prototyping and reliable mass production
• Customized solutions based on customer drawings and application requirements

FAQ

Q1: Can you manufacture according to our drawings?
Yes. We support 2D drawings (PDF, DWG), 3D models (STEP, STP, IGES), and sample-based customization.

Q2: What is the minimum step size you can machine?
The minimum step size depends on the overall part geometry. Features down to approximately 0.1 mm can typically be produced after engineering evaluation.

Q3: Do you offer optical-grade polishing?
Yes. Single-side and double-side optical polishing are available, with surface roughness as low as Ra < 10 nm.