High precision chip protect windows glass

Hight quality,Low price

Our company can provide products with high quality and high technology according to the different needs of customers. At the same time, we can provide perfect after-sales service sincerely for the customer.

Our company can provide alll kinds of high precision glass products for customers, including optical flat milling piece, optical window piece, reflecting mirror, filter, CD motherboard and microcrystalline glass base board etc with various specifications and shapes. Our products are exported to Germany, Japan, South Korea, the United States, Taiwan and Hong Kong etc in a large quantity, which widely used in optics, biology, medical, aerospace, electronics and precision machining, etc. We concentrated classical and modern grinding and polishing technology together and gradually formed the polishing technology with its own characteristics through continuous exploration and innovation.

The main technical index of the products:

a)Size: wafer diameter from 15mm to 300mm, wafer inside from 5mm to 150mm. Square from 20*20mm to 300*300

b)Polishing product thickness from 0.3mm to 25mm

c)Length-wide size tolerance: ≤ 0.1mm

d)Diameter coaxial degree: φ30mm inner≤0.01mm;φ150mm inner≤ 0.1mm

e)Inner bore tolerance: φ30mm inner ≤ 0.03mm;φ150mm inner≤ 0.2mm

f)Outer diameter tolerance: ± 0.02mm

g)Thickness tolerance: ± 0.01mm

h)Surface flatness: customer quirement

i)Double parallel difference: ≤ 3μm, surface finish: 0 grade

j)Surface roughness: less than 0.4mm

k)Product testing instrument accuracy

Interferometer: ≤1λ/20

Surface roughness tester: ≤0.01nm

Roundness measuring instrument: ≤0.001mm

High precision chip protect windows glass