 |
A - Axis Sapphire Crystal Watch Case Glass Lens Rough Material OEM Accepted
Product Details:
| Place of Origin: | CHINA |
| Brand Name: | ZMKJ |
| Model Number: | watch glass lens |
Payment & Shipping Terms:
| Minimum Order Quantity: | 10pcs |
|---|---|
| Price: | 1-10usd/pcs by size by case |
| Packaging Details: | customized plastic box by your size |
| Delivery Time: | 1-4weeks |
| Payment Terms: | T/T, Western Union, MoneyGram |
| Supply Ability: | 10000pcs per month |
|
Detail Information |
|||
| Material: | Sapphire Single Crystal | Orientation: | A-axis |
|---|---|---|---|
| Size: | Dia32.5mm Or Customized | Surface: | Grinding Lapped Or As-cut |
| Tolerance: | ±0.03mm | Application: | Watch Glass Lens |
| Hardness: | 9.0 | Physical Property: | Wear-resisting |
| Highlight: | sapphire crystal watch face,custom sapphire watch crystal |
||
Product Description
A-axis Watch Sapphire single crystal glass lens rough material/ optical grade Sapphire Watch glass lens/ rough sapphire glass plates for watch glass
ZMKJ / WUXI FINE CRYSTAL TECHNOLOGY Sapphire Crystal Watch Glass
Window Materials for High-class watches
Features of Keeppromise’s Sapphire:
Sapphire is scaled at Mohs hardness 9 ,the hardest next to diamond .
It has the excellent endurance and eternal btilliance and transparency .
This is why it has become intimate as the window materials of wristwatches with so many custoners all over the world .
| Thickness | 0.5-50mm |
| Size tolerance | ±0.03mm |
| Edge Finish | Ground and beveled |
| Surface Quality | 40-20 scratch-dig |
| Parallelism | ≤3 arc min (≤0.9 mrad) |
| Clear Aperture | >80% of central diameter |
| Hardness (Knoop) | 1370 kg mm-2 |
| Young's modulus | 3.4 x 1011 N m-2 |
| Thermal Limit | 22 W m-1 K-1 |
| Thermal expansion coefficient | 8.4 x 10-6 K-1 |
Feature:
Hardness is second only to diamonds
Much stronger than other optical materials (65,000 modulus of rupture)
Extremely hard surface
High scratch resistance and wear.
Very wide optical transmission band from UV to Mid IR
Extremely high melting point
High electrical resistance
Chemical properties of stability
High thermal conductivity for a non-conductor, even better than copper at cryogenic temperatures
High dielectric constant
Customized Colorful or White Sapphire Watch Glass
1. OEM Size and Design. Any shape is ok.
2. CE&Rohs Material. Europe, Japan,China, depend on your requirements.
3. We can provide engineer drawing.
4. Printting logo is ok. Camera Lens
5. Fast delivery date.
6. High quality
Our company export some of watch glass to Europe and USA；Japan......
We can provide the samples to check the quality. The Sample we have available,free charge.
Application
Sapphire has become the preferred material for high-end watch windows due to its remarkable durability and clarity. With a Mohs hardness rating of 9, second only to diamond, sapphire is highly resistant to scratches and wear, making it an ideal choice for wristwatches that are subject to daily use and exposure to various elements. The material’s exceptional hardness ensures that the watch face remains pristine, preserving its aesthetic appeal over time.
In addition to its durability, sapphire offers excellent brilliance and transparency, allowing for clear visibility of the watch face and enhancing the overall luxury feel of the timepiece. This combination of strength and beauty makes sapphire a top choice for prestigious watch brands around the world. Customers appreciate the long-lasting clarity and the peace of mind that comes with knowing their watch window will remain in perfect condition for years.
Keeppromise’s sapphire, with its superior endurance and elegance, has garnered a strong reputation among watch enthusiasts. The use of sapphire windows not only elevates the watch's functionality but also enhances its visual appeal, making it a symbol of luxury and reliability for discerning customers.
About the Delivery
Q1. Are you a factory?
A1. Yes, we have a professional optical lens manufactruer in wuxi city of China.
Q2. What is the MOQ of optical lens?
A2. No MOQ for customer if optical lens is in stock. if for customized size ,MOQ is 3-10pcs by case.
Q3: Can I customize the products based on my need?
A3.Yes, we can customize the material, specifications and optical coating for your optical components based on your needs.
Q4. How can I get sample from you?
A4. Just send us your requirements, then we will send samples accordingly.
Q5. How many days will samples be finished? How about mass products?
A5. Generally, we need 1~2 weeks to finish the sample production.
As for the mass products, it depends on your order quantity.
Q6. What's the deliver time?
A6. (1) For inventory: the delivery time is 5 workdays after received your payment.
(2) For customized products: the delivery time is 7 to 20 workdays. According to the quantity.
Q7. How do you control lens quality?
A7. Producing process is in vacuum dust-free shop, like prepare material, mixed material and take out . Four times quality checking during production process.
Q8. How about your payment and quality service ?
A8. Usually 100％ payment before delivery, and if the products is disqualification and we will reback your
money .