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Imported quartz material 4~6KW 27.9X4.1mm Laser Protective optical lens for raytools fiber Laser cutting Machine

1-9 Pieces
10-49 Pieces
>=50 Pieces
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1 Piece
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Company Information

Shanghai Xianying Automation Technology Co., Ltd.

CN Trading Company
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Quick Details

Place of Origin: china
Brand Name: Schaeringlaser
Model Number: D27.9XT4.1
Usage: Optical
Structure: Plano-convex
Shape: Plano
Name: 6000W 27.9X4.1mm Laser Protective optical lens
Brand Name: Schaeringlaser
Model Number: D27.9XT4.1
Diameter: 27.9mm
Thickness: 4.1mm
Wavelength: 1064mm
Laser power: 3000w
Application: Rotools fiber laser cutting head
Material: Quartz
Coating: Anti-Reflective (AR) Coatings
Selling Units: Single item
Single package size: 9.8X6.8X0.8 cm
Single gross weight: 0.017 KG
Package Type: brown paper+double sponge+plastic box(or as required)




NameLaser Protective Lens
MaterialHigh Quality Quartz Material
Laser Power 4~6000W
ApplicationDedicated for Fiber laser cutting head 

 Protective lens /window can be devided into following kinds:

1. According to applicable laser power:

1) 0~3000W (low power)

2) 4000~6000W

3) 15000W~20000W


2. According to lens material

1) Normal Chinese quartz (fused silica)

2) High quality Chinese quartz ( (fused silica)

3) Imported quartz (fused silica)

4) Original quartz (fused silica)

6) Sapphire crystal  


You can't judge the quality (applicable laser power )from the apperance, only when you put in use you can tell the difference. More professional questions please contact us!!!




Focal /collimation Lens

Detail 2



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 Aliexpress  Standard / Premium Shipping is recommended 

 Sample order less than 20 pcs can be delivered within 2 hours after receipt of the payment 


  Order less than 100 pcs can be delivered within 3 to 7 days after receipt of the payment


Payment Term


About Us


Shanghai Xianying Automation Technology Co.,Ltd. professionally supplies various of laser consumables: CO2 laser optics and Fiber laser optics for different brands laser cutting heads with complete size and spec like Precitec, Raytools, Bystronics, Trumpf, Amada, Prima, Mazak, Mitsbishi, Salvagnini, LVD, Tanaka. Both of OEMs and ODMs are welcome, any size or spec can be customized. We have a strong technology R&D team support with around 15 years experience.

 Our main products are laser nozzles, laser ceramic insulating rings/nozzle holders, CO2 laser lens, fiber laser protection glass, fiber laser focus lens.

We adhere to the goal of “quality is the priority and reputation is the first”. Our products have been widely recognized and trusted by users. We will spare no efforts to provide the best quality and expert service to our esteemed customers with most favorable price and fast delivery. 

Our Advantages



Q1:What is the MOQ policy?

A2: 10 pcs.  Free Sample order is possible, but the freight is on customer's side. 

Q2: what is your payment term
A3: For sample order, 100% payment will be in advance before delivery.

 For bulk order: 30~ 50% payment is made in advance and the balance shall be paid before delivery pay through Alibaba trader order in such ways as TT/credit cards, E-checking, Visa, Paylater.

With following advantages: First, it will be safe; Second quality guarantted; Third, you will be very clear of order state from order to the product reaching to you. 


Q3: What's delivery time?

A: Sample order less than 20 pcs can be delivered within 2 hours after receipt of the payment 

 Order less than 100 pcs can be delivered within 3 to 7 days after receipt of the payment


Q4: How does your factory do the quality control?
Quality is priority ,we always attach the importance to quality control from the beginning to the end of the production .every product will be fully assembled and carefully tested before packing and shipping.


Q5:Which countries will the products be sold?

A4:HK, Taiwan, Unites States, Russion, Japan, Vietnam, over 100 countries and regions


If you have more questions, please feel free to contact us.


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