Cloudray GaAs Focus Lens Dia. 19.05 / 20mm FL 50.8 63.5 101.6mm 1.5-4" High Quality for CO2 Laser Engraving Cutting Machine

The Best Seller Machine Product provide Cool Deals Cloudray GaAs Focus Lens Dia. 19.05 / 20mm FL 50.8 63.5 101.6mm 1.5-4" High Quality for CO2 Laser Engraving Cutting Machine. Now only USD /piece. Dont waste your time. Buy Now only in Cloudray Official Store Trusted Seller Store!

• GaAs is used for optical windows, lenses, mirrors, prisms and optical blanks, plates, disks, sheets, slabs particularly for infrared applications.

• GaAs - transparent in wide spectral range from yellow (visible) to far IR. GaAs material is a chemically inert, non-hygroscopic and highly pure product that is very effective in many optical applications due to its extremely low bulk losses, high resistance to thermal shock and stability in virtually all environments, easily machined. To obtain superior transmittance, GaAs crystals are grown by Chemical Vapor Deposition process . GaAs is polycrystalline material, demonstrates superior CO2 laser transmittance and is employed in the transmission optical components used in CO2 laser processing.

• Mateial: GaAs

• Diameter: 19.05/20mm

Material	Diameter		Focal Length		Thickness		Link
	mm	inch	mm	inch	mm	inch

• Customs Duties:

1. All the products shipping from China might cause tariffs. Please know well about your country\'s import laws. All the products Cloudray selling default FOB trading terms, the buyers will take his responsibility on all kinds of tax in their country. If you have special requests about declaration, please leave messages to us when you make an order.
2. Shipping from local country (Germany/USA/Russia) has no import tariffs required.

• All packages to Brazil need CPF number by DHL/UPS/Fedex/EMS.
• All packages to Argentina need CUIT number by DHL/UPS/Fedex/EMS.
• All packages by Chile need RUT number by DHL/UPS/Fedex/EMS.
• All packages to Russia need the Full Name(First name + Mid name + Last name).

1. Customer satisfaction is quite important to us. If you are satisfied with our products and service, Please give us positive feedback and 5 stars for us.

2. If there are any problems with your purchase, please contact us before leaving negative or neutral feedback. We will make our efforts to help you solve the problem.

Return Policy

If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.
N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.

Seller Service

On-time Delivery: If you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).
Fast Limited Cloudray GaAs Focus Lens Dia. 19.05 / 20mm FL 50.8 63.5 101.6mm 1.5-4" High Quality for CO2 Laser Engraving Cutting Machine

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China ZnSe CO2 Focus Lens Dia. 18 - 20mm FL 50.8 63.5 101.6mm 1.5 - 4" CVD for Laser Engraving Cutting Machine Free Shipping

The Best Seller Machine Product provide Great Clearance China ZnSe CO2 Focus Lens Dia. 18 - 20mm FL 50.8 63.5 101.6mm 1.5 - 4" CVD for Laser Engraving Cutting Machine Free Shipping. Now only USD /piece. Dont waste your time. Buy Now only in Cloudray Official Store Trusted Seller Store!

Laser focal lens

By Cloudray Laser

Features and specifications:

Specifications:
• Material: China PVD ZnSe (max 80 W)
• Wavelength: 10.6 um
• Diameter: 18/19.05/20 mm
• Diameter tolerance: +0/-0.1 mm
• Focal length: 1.5/2/2.5/3/4/5 inches
• Focal length tolerance: ± 2%
• Transmittance: 99.5%
• Clear aperture (polished) > 90%
• AR coating reflectivity < 0.3%
• Scratch-dig: 20 - 10

Showcase

High-quality ZnSe crystal

China PVD ZnSe material
Excellent optical poperties
Up to 80 W CO2 laser resistance

Superb coating process

Double-sided solid coating
Reduces laser loss
Laser transmittance up to 99.5%

High precision process

Excellent substrate
Precise slicing, polishing, grinding processes
High temperature, laser resistance, long working life

Laser light path schematic

1. Laser tube
2. First mirror
3. Second mirror
4. Third mirror
5. Focus lens

1. Lens tube
2. Focus lens (Reminder: Convex side should face laser, Concave side should face material)
3. Lens ring
4. Nozzle
5. Gas nozzle
6. Focal length (distance between lens and cutting/engraving material)
7. Working table

Cleaning instructions

1. Use an air bulb to blow off any loose contaminants. (dust, lint particles)
2. Squeeze a few drops of acetone onto the lens tissue, wetting the complete optic\'s diameter. (smudges, fingerprints)
3. Using the cotton swab and distilled vinegar, wipe the lens. Immediately use a wet cotton swab to remove any acetic acid, then clean with a clean dry cotton swab. (spittle, oils)

Individually packaged

Mo mirror

Diameter: 15/19.05/20/25/30/38.1 mm (3 pcs)

Si mirror gold-plated

Diameter: 19.05/20/25/30/38.1 mm (3 pcs)

SERVICES

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PACKAGING AND SHIPPING GUARANTEE

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Return Policy

If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.
N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.

Seller Service

On-time Delivery: If you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).
2018 Offers China ZnSe CO2 Focus Lens Dia. 18 - 20mm FL 50.8 63.5 101.6mm 1.5 - 4" CVD for Laser Engraving Cutting Machine Free Shipping

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Cloudray China CO2 ZnSe Focus Lens Dia.18 19.05 20 mm FL38.1 50.8 63.5 101.6 127mm 1.5 - 4" for Laser Engraving Cutting Machine

The Best Seller Machine Product provide 2018 Promo Cloudray China CO2 ZnSe Focus Lens Dia.18 19.05 20 mm FL38.1 50.8 63.5 101.6 127mm 1.5 - 4" for Laser Engraving Cutting Machine. Now only USD /piece. Dont waste your time. Buy Now only in Cloudray Official Store Trusted Seller Store!

• Mateial: China-made Znse

• Diameter: 18 19.05 20mm

• Focal length: 1.5"(38.1mm) 2"(50.8mm) 2.5"(63.5mm) 3"(76.2mm) 4"(101.6mm) 5"(127mm)

• Customs Duties:

1. All the products shipping from China might cause tariffs. Please know well about your country\'s import laws. All the products Cloudray selling default FOB trading terms, the buyers will take his responsibility on all kinds of tax in their country. If you have special requests about declaration, please leave messages to us when you make an order.
2. Shipping from local country (Germany/USA/Russia) has no import tariffs required.

• All packages to Brazil need CPF number by DHL/UPS/Fedex/EMS.
• All packages to Argentina need CUIT number by DHL/UPS/Fedex/EMS.
• All packages by Chile need RUT number by DHL/UPS/Fedex/EMS.
• All packages to Russia need the Full Name(First name + Mid name + Last name).

1. Customer satisfaction is quite important to us. If you are satisfied with our products and service, Please give us positive feedback and 5 stars for us.

2. If there are any problems with your purchase, please contact us before leaving negative or neutral feedback. We will make our efforts to help you solve the problem.

Return Policy

If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.
N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.

Seller Service

On-time Delivery: If you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).
Super Promo Cloudray China CO2 ZnSe Focus Lens Dia.18 19.05 20 mm FL38.1 50.8 63.5 101.6 127mm 1.5 - 4" for Laser Engraving Cutting Machine