CZ Method Grown Sapphire Watch Case with 0.5-200mm Thickness and 1370 kg/mm² Hardness for High-Performance Applications

Price Negotiable

Price: 1500-4500

MOQ: 5pcs

Delivery Time: 5-8 weeks

Product Description

Technical Specifications

Thickness	0.5-200mm
Size Tolerance	±0.01
Edge Finish	Ground and beveled
Surface Quality	40-20 scratch-dig
Surface Flatness	λ/4@633nm
Parallelism	≤3 arc min (≤0.9mrad)
Clear Aperture	＞80% of central diameter
Hardness (Knoop)	1370 kg/mm²
Young's Modulus	3.4×10¹¹ N/m²
Thermal Limit	22 W/m/K
Thermal Expansion Coefficient	8.4×10⁻⁶/K

Key Features

High mechanical strength: Withstands high-speed movement and pressure loads for infrared window applications
Excellent thermal stability: Maintains performance under temperature shock from pneumatic heating and altitude changes
Superior chemical stability: Resistant to atmospheric salt solutions and corrosive gases, with minimal moisture absorption
High optical transmission: Effectively transmits ultraviolet to medium infrared radiation
Optimal optical characteristics: Minimal optical scattering with excellent refractive index uniformity
Large window capability: Meets requirements for oversized window applications

Manufacturing Advantages

Direct manufacturer of color sapphire boule with specialized watch case expertise
In-house sapphire growth equipment using CZ and KY methods
Custom production capabilities based on client-provided drawings
Precision sapphire processing and polishing techniques
Experienced technical team with skilled workforce

Frequently Asked Questions

Are you a trading company or factory?

We are a professional sapphire products factory with trading capabilities.

Can you do customized products?

Yes, we specialize in custom production and OEM work. CAD and 3D drawings are required.

Could you provide samples?

Yes, samples are available with charge. Sample fee is refunded for orders exceeding 100 pieces.

What's the delivery time?

Standard delivery for 200 watch cases is 5-8 weeks, depending on processing complexity.

How about the payment?

T/T payment is preferred.

How about the delivery?