Single Crystal Sapphire Rods 2", 4", 6" for Optical , Electronic & Industrial Applications

Single Crystal Sapphire Rods for Optical, Electronics & Industrial Applications

ZMSH Sapphire Rod – Product Overview

ZMSH provides high-purity single crystal sapphire rods, manufactured from ultra-pure Al₂O₃ (aluminum oxide) using advanced Kyropoulos (KY) and Pulling Down (PD) growth techniques. These rods deliver exceptional mechanical strength, thermal stability, chemical resistance, and dimensional precision, making them ideal for optical, electronic, industrial, and scientific applications.

Our sapphire rods are widely used in LED substrates, laser components, precision mechanical parts, semiconductor tooling, optical instruments, and medical devices. With low defect densities and uniform lattice orientation, ZMSH sapphire rods maintain performance under high temperatures, plasma environments, and demanding mechanical loads.

Available in various diameters (as small as 0.3mm) and lengths (up to 600mm), with C-cut, R-cut, and randomly oriented crystal options, our rods can be tailored for specific industrial or research requirements. Precision-polished or fine-ground surfaces ensure optimal performance in wear-resistant, optical, and insulation applications.

Sapphire Rod Specifications

Sapphire Infrared Transmittance at Different Thicknesses

Key Features

• High Mechanical Strength: Mohs hardness 9; excellent anti-abrasion and wear resistance.

• Thermal Stability: Withstands up to 2000°C with minimal deformation; high thermal conductivity.

• Chemical & Plasma Resistance: Inert to acids, alkalis, molten metals, and plasma environments.

• Electrical Insulation: Stable dielectric constant and low dielectric loss, ideal for high-frequency electronics.

• Optical Transparency: Broad transmission from UV to IR, suitable for windows, lenses, and laser systems.

• Biocompatibility: Safe for medical instruments, implants, and bioengineering applications.

• Dimensional Accuracy: Maintains precision for rod bearings, pistons, and optical components.

Applications

• Optoelectronics: High-brightness LEDs, laser diodes, and photodetectors.

• Semiconductors & Electronics: Thin-film substrates, MEMS devices, piezoelectric and superconducting materials.

• Precision Mechanical Components: Bearings, plunger rods, gaskets, and wear-resistant parts.

• Medical & Bioengineering: Surgical tools, endoscopes, and implants.

• Scientific Instruments & Aerospace: Furnace windows, plasma chambers, optical alignment tools.

Production & Quality Control

1. Raw Material Selection: Ultra-high purity Al₂O₃ crystals.

2. Crystal Growth: KY or Pulling Down (PD) method for high-quality rods.

3. Annealing: Relieve internal stress and enhance mechanical and optical performance.

4. Cutting & Polishing: Diamond saws and precision polishing for smooth surfaces.

5. Quality Assurance: Optical inspection, X-ray diffraction, and chemical analysis.

6. Packaging & Shipping: Carefully handled to preserve integrity and quality.

Custom Sapphire Rods 

• Cylindrical, tapered, and micro rods (diameters down to 0.3mm).

• Custom lengths up to 600mm and surface finishes (polished or fine-ground).

• Special shapes: flat ends, radius ends, saddle pins, and other custom designs.

• OEM solutions with technical support for integration in industrial and research applications.

ZMSH sapphire rods are trusted worldwide for their mechanical, thermal, optical, and chemical performance, providing reliable solutions across optoelectronics, microelectronics, industrial machinery, medical devices, and scientific instrumentation.

FAQ – ZMSH Sapphire Rod

1. What is a sapphire rod and how is it made?
A sapphire rod is a high-purity single crystal Al₂O₃ (aluminum oxide) material with a hexagonal crystal structure. ZMSH sapphire rods are produced using Kyropoulos (KY) or Pulling Down (PD) methods, ensuring low defect density, uniform lattice orientation, and superior mechanical and thermal properties.

2. What are the key properties of ZMSH sapphire rods?

• High hardness and mechanical strength (Mohs 9)

• Excellent thermal stability (up to 2000°C) and high thermal conductivity

• Chemical and plasma resistance for harsh environments

• Optical transparency across UV to IR spectrum

• Stable dielectric properties and electrical insulation

• Biocompatibility for medical and bioengineering use

3. What are the main applications of sapphire rods?
ZMSH sapphire rods are widely used in:

• Optoelectronics: LED substrates, laser diodes

• Microelectronics & Semiconductors: Thin-film substrates, MEMS devices

• Precision Instruments: Bearings, plunger rods, optical alignment tools

• Medical Devices: Surgical instruments, implants

• Scientific & Industrial Equipment: Furnace windows, plasma chambers, aerospace optics

4. What sizes and customization options are available?
Sapphire rods are available in diameters from 0.3mm to several mm and lengths up to 600mm. Crystal orientations include C-cut, R-cut, and random orientations. ZMSH offers custom shapes, surface finishes (polished or fine-ground), and OEM solutions to meet specific industrial and research requirements.