High Purity 25.4×2.0 Laser Window Protective Lens for Fiber Laser Cutting Head

Overview
Product Description
Specification
Detailed Pictures
More Products
FAQ

Overview

Basic Info.

Model NO.	Laser Protective Lens
Type	Laser Protective Lens
Product Name	Laser Protective Lens
Keywords	Optical Fiber Lens
Surface Quality	10-20
Clear Aperture	>98%
Diameter	18-50mm
Dimension Tolerance	+/-0.01mm
Lens Thickness	1-9mm
Material	Fused Silica Quartz
Application	Laser Welding Machine
Transport Package	International Standards
Specification	Standard Specifications or Customized
Trademark	TOPRUN
Origin	Jiangsu, China
Production Capacity	50000pieces/Year

Packaging & Delivery

Package Size20.00cm * 20.00cm * 10.00cm Package Gross Weight2.000kg

Product Description

Product DescriptionPREMIUM LASER PROTECTIVE LENS

Designed for demanding industrial environments, our laser protective lens serves as an essential optical window that safeguards your valuable focusing lens from spatter, dust, smoke, and high-temperature particles during laser cutting, welding, engraving, and marking operations.

Featuring advanced anti-reflective (AR) coating and superior optical clarity, this protective window ensures high transmittance while blocking harmful debris—extending equipment lifespan and reducing costly downtime.

Compatible with major laser head brands and available in various diameters and wavelengths, our laser protection window delivers reliable performance for fiber laser, CO2 laser, and other laser systems.

Whether you need standard specifications or OEM/ODM customization, we provide the perfect solution to keep your laser running at peak efficiency.

Specification

TECHNICAL PARAMETERS
Product Name	Laser Protective Lens
Keywords	Optical Fiber Lens
Surface Quality	10-20
Clear Aperture	>98%
Diameter	18-50mm
Dimension Tolerance	+/-0.01MM
Lens Thickness	1-9mm
Material	Fused Silica Quartz
Application	Laser Welding Machine

Specifications	Diameter	Thickness	Quartz material	Applications	Applicable power
18*2	18	2	JGS2	handheld welding machine	1.5KW
18*2	18	2	JGS1(high power)	handheld welding machine	3KW
20*2	20	2	JGS2	handheld welding machine	1.5KW
20*2	20	2	JGS1(high power)	handheld welding machine	3KW
20*3	20	3	JGS2	handheld welding machine	2KW
20*4	20	4	JGS2	handheld welding machine	3KW
21.5*2	21.5	2	JGS2	upper protective mirror	-
21.5*2	21.5	2	JGS2	cutting	20KW
22.35*4	22.35	4	JGS2	cutting	4KW
24*2	24	2	JGS2	cutting	4KW
24*4	24	4	JGS2	cutting	4KW
24.9*1.5	24.9	1.5	JGS2	upper protective mirror	-
24.9*1.5	24.9	1.5	JGS1(high power)	cutting	4KW
25*2	25	2	JGS2	cutting	4KW
25*3	25	3	JGS2	cutting	4KW
25.4*4	25.4	4	JGS2	cutting	4/20KW
25.4*5	25.4	5	JGS2	cutting	5KW
26.5*5	26.5	5	JGS2	cutting	5KW
27.9*4.1	27.9	4.1	JGS2	cutting	4KW
27.9*4.1	27.9	4.1	JGS1(high power)	cutting	4KW
28*2	28	2	JGS2	cutting	4KW
28*4	28	4	JGS2	cutting	4KW
28*4	28	4	JGS1(high power)	cutting	8KW
29.7*4.7	29.7	4.7	JGS2	cutting	4KW
30*1.5	30	1.5	JGS2	welding	1.5KW
30*2	30	2	JGS2	welding	3KW
30*3	30	3	JGS2	welding	4KW
30*4	30	4	JGS2	welding	6KW
30*5	30	5	JGS2	cutting	5KW
30*5	30	5	JGS1(high power)	cutting	10KW
32*2	32	2	JGS2	cutting	20KW
34*3	34	3	JGS2	cutting	3KW
34*5	34	5	JGS2	cutting	5/20/30/40KW
34*5	34	5	JGS1(high power)	cutting	12KW
35*5	35	5	JGS2	cutting	20KW
36*2	36	2	JGS2	welding	3KW
36*3	36	3	JGS2	welding	4KW
36*5	36	5	JGS2	cutting	5KW
37*7	37	7	JGS2	cutting	6KW
37*7	37	7	JGS1(high power)	cutting	15KW
38.1*1.5	38.1	1.5	JGS2	upper protective mirror	5KW
40*5	40	5	JGS2	cutting	5KW
40*5	40	5	JGS1(high power)	cutting	12KW
42*3	42	3	JGS2	cutting	5KW
42*4	42	4	JGS2	cutting	20KW
42*9	42	9	JGS2	cutting	20KW
43*2	42	2	JGS2	cutting	5KW
45*1.5	45	1.5	JGS2	cutting	6KW
45*2	45	2	JGS2	cutting	5KW

Detailed Pictures

SUPERIOR OPTICAL PROTECTION

Acts as a robust barrier against spatter, dust, smoke, and molten particles, effectively preventing contamination and damage to expensive internal optics such as the focusing lens.HIGH TRANSMITTANCE & STABLE OUTPUT

Engineered with premium AR coating technology to maintain optimal laser transmission, ensuring consistent beam quality and stable laser power output throughout operations.

COST-EFFECTIVE MAINTENANCE SOLUTION

Significantly reduces long-term operational costs by protecting high-value focusing lenses from frequent replacement, minimizing unplanned maintenance and production interruptions.DURABLE & HEAT-RESISTANT CONSTRUCTION

Built with high-quality optical materials that withstand extreme temperatures and harsh working conditions, offering extended service life even in intensive industrial applications.

UNIVERSAL COMPATIBILITY

Designed to fit major laser cutting and welding head brands, with multiple sizes and wavelength options available to match your specific equipment requirements.More Products

FAQQ1: When can I get the quotation?
A: We usually quote within 24 hours of receiving your inquiry. For urgent requests, please indicate priority in your email.Q2: Can I get a discount for large orders?
A: Yes, confirmed orders will enjoy our factory price. Q3: How do I choose the right consumables for my machine?
A: We recommend the most suitable consumables based on your needs and budget for efficient production.Q4: What are the payment terms?
A: We accept various payment methods: T/T (30% deposit, 70% before shipment), Trade Assurance, 100% T/T in advance. For small batch orders, we also accept Western Union and PayPal. For OEM orders, the payment terms are 50% deposit, 50% before shipment.Q5: How long is the lead time?
Answer: Standard orders are delivered 4 weeks after payment. Q6: How about the shipping?
A: We offer international express door-to-door service, air freight, and ocean shipping. You can choose the shipping method you prefer, and different shipping methods have different costs.