ARH Sapphire Co., Ltd
| Payment Terms | T/T |
| Supply Ability | 10000 piece per month |
| Delivery Time | 5-8 weeks |
| Packaging Details | Carton |
| Material | Sapphire |
| Size | Customized Size |
| Growing Method | CZ sapphire |
| Packing | Carton |
| Deliery Port | Chongqing |
| Use | For watch |
| Coating | AR/customer request |
| Description | Scratch-resistant |
| Place of Origin | Chongqing, China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 10000 piece per month |
| Delivery Time | 5-8 weeks | Packaging Details | Carton |
| Material | Sapphire | Size | Customized Size |
| Growing Method | CZ sapphire | Packing | Carton |
| Deliery Port | Chongqing | Use | For watch |
| Coating | AR/customer request | Description | Scratch-resistant |
| Place of Origin | Chongqing, China | ||
| High Light | 3mm scratch resistant sapphire ，40mm scratch resistant sapphire ，scratch resistant 40mm watch glass | ||
Round Flat Sapphire Crystal Watch Lens Glass For Quartz Watches
Sapphire glass/ruby glass has very good thermal properties, excellent electrical and dielectric properties, and is resistant to chemical corrosion. It has high temperature resistance, good thermal conductivity, high hardness, infrared transmission, and good chemical stability. Therefore, it is often used to replace other optical materials to make optical components, infrared-transmitting optical windows, and is widely used in infrared and far-infrared military equipment, such as: used in night vision infrared and far-infrared sights, night vision cameras and other instruments And satellite and space technology instruments and meters, as well as windows for high-power lasers, various optical prisms, optical windows, UV and IR windows and lenses, observation ports for low-temperature experiments, and high-precision instruments for navigation, aerospace, and aviation. Be fully applied.
Artificial sapphire is made of bauxite (alumina) and mixed with oxygen and hydrogen.
During manufacturing, alumina is first decomposed at a high temperature of 1200 degrees, and then the material reaches a melting point of 2050 degrees. After 15 hours, a rod will be formed. It is fired again at a high temperature of 1800 degrees to ensure the stability of the material.
Next, the diamond polishing blade will cut it to the required thickness, and after polishing, it can be made into an arc or semicircular crystal surface.
After being polished, in order to ensure a tight fit with the watch case, the semi-finished product needs to be further chemically polished.
Immediately afterwards, these sapphire crystals will go to the furnace of the dust-free laboratory, where they will be anti-glare treated by a precision vacuum evaporation process.
The sapphire crystal after anti-glare treatment can reduce 99% of the reflected light entering the naked eye, and the looming blue film plays this role.
| Property | 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*1011N/m2 |
| Thermal Limit | 22W/m/K |
| Thermal expansion coefficient | 8.4*10-6/K |
Why US?
1. We’re the rare source manufacturer of color sapphire boule, and the most professional factory of sapphire processing, especially the special watch case.
2. We have our own sapphire grown equipent with CZ and KY method.
3. Professional customized production according to the drawing provided by clients.
4. Precision work of sapphire processing and polishing.
5. Experienced technicians and skilled workers.
FQA
1. Are you a trading company or factory?
We are a professional factory of sapphire products, also a trading company .
2.Can you do customized products?
Yes, we specialized in customized production or OEM work.
CAD,3D drawing are needed.
3.Could you provide samples?
Yes, we could provide samples with a charge, but if you place the order with a quality above 100pcs, the sample charge will be refunded.
4.What’s the delivery time?
It depends on the type of products and the quality.
For watch case, the regular time is around 5-8 weeks for 200pcs according to the difficulty of the processing.
5.How about the payment?
T/T payment is prefered.
6.How about the delivery?
Mostly by air, like DHL, Fedex.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2019
Total Annual:
1500000-300000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
ARH Sapphire Co., Ltd is a company engaged in optoelectronic materials, new crystal materials,especially all kinds of sapphrie products,which are widely used in consumer electronics, precision equipment, laser communications, medical, environmental protection, high-end instruments... ARH Sapphire Co., Ltd is a company engaged in optoelectronic materials, new crystal materials,especially all kinds of sapphrie products,which are widely used in consumer electronics, precision equipment, laser communications, medical, environmental protection, high-end instruments...
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