Sapphire Rod Medical lazer HPLC Fiber Optics

Product Description:

Precision-engineered from single-crystal synthetic sapphire (Al₂O₃), this 2mm diameter by 40mm length rod is a premier choice for high-durability optical and mechanical systems. Boasting a Mohs hardness of 9, it offers exceptional scratch and wear resistance, outlasting steel and quartz in abrasive environments.

Its 99.99% purity ensures excellent optical transmission from the UV to mid-infrared (200nm to 5500nm), while its 2040°C melting point and chemical inertness make it ideal for HPLC pump plungers, high-temperature insulators, and laser light guides. Typically manufactured with micron-level tolerances (e.g., ±0.01mm) and available in all-surface polished or fine-ground finishes, this rod maintains dimensional stability under extreme pressure and corrosive exposure. It is a reliable, high-performance solution for medical devices and scientific instrumentation.

Key Features:

Thermal Resistance:Withstands temperatures above 2000 °C, maintaining stability in extreme heat(continuous use around 1500°C and thermal cycling environments.

Hardness & Durability: Mohs hardness of 9, offering outstanding resistance to scratches, wear, and mechanical damage.

Chemical Stability: Highly resistant to acids, alkalis, and corrosive gases, ensuring long service life in harsh chemical environments.

Fully Customizable Dimensions:Available in customized outer diameter, inner diameter, length, and surface finish touch to meet specific application requirements.

Applications:

1. Analytical Instrumentation: HPLC Pump Pistons
In High-Performance Liquid Chromatography (HPLC), these 2mm rods serve as reciprocating pistons. Moving at high frequencies, they pump aggressive solvents under extreme pressure. Sapphire’s Mohs 9 hardness prevents surface scratching against high-pressure seals, while its chemical inertness ensures no metallic ions contaminate the sensitive samples during the analytical process.

2. Medical Technology: Laser Surgical Tips
Used as rigid light guides for Er:YAG or CO2 dental and ophthalmic lasers, these 40mm rods deliver concentrated energy to surgical sites. Sapphire’s high thermal damage threshold prevents melting under intense laser radiation, while its biocompatibility and wide optical transmission allow for safe, precise tissue ablation in sterile environments.

3. Industrial Metrology: CMM Stylus Stems
In Coordinate Measuring Machines (CMM) used for aerospace inspections, this rod acts as a rigid stem holding a ruby contact ball. Sapphire’s high Young’s modulus provides extreme stiffness over the 40mm length, preventing the "flex" or bending that affects steel stems, thus ensuring sub-micron accuracy during contact measurement.

Specifications:

FAQs:

Q: What material is the sapphire rod washer made of?

A: It is made from high-purity single crystal aluminum oxide, offering excellent mechanical, thermal, and chemical properties

Q: What is the maximum working temperature?

A: Sapphire tubes can operate continuously at 1500-1700°C, with higher temperatures possible for short-term exposure depending on the environment.

Q: Are the dimensions customizable?

A: Yes, we offer full customization including outer diameter, inner diameter, length, wall thickness and surface finish according to your requirements.

Q: What surface finishes are available?

A: Both polished and as-ground/as-grown surfaces are available. Optical-grade polishing can be provided for applications requiring high transparency.

Related product:

Sapphire Rods / Cores Light Guide Rods for Dental Laser Applications​​