Laser Welder Protective Lens is installed inside the laser welding gun to protect the internal optical system from welding spatter, dust, and heat during operation. It works together with the focus lens to maintain stable laser transmission and welding performance.
KEMPSON Laser Welder Protective Lens Kit includes 5 protective lenses and 1 focus lens, suitable for 1000W-6000W handheld laser welding machines. The reusable protective lens structure allows operators to replace the lens position after surface contamination, reducing unnecessary lens replacement and maintenance costs.
The lens system uses a multi-layer protection design with an anti-spatter nozzle, protective gas, and temperature monitoring to reduce damage caused by welding sparks and high-temperature operation. It is suitable for continuous welding applications in stainless steel, carbon steel, aluminum, and other metal fabrication industries.


KEMPSON Laser Welder Protective Lens is designed for use with handheld laser welding machines and related welding accessories. The lens works together with the laser welding gun, welding nozzle, and wire feeding system to maintain stable welding performance and reduce consumable replacement.

Compatible with 1000W-6000W handheld laser welders for stainless steel, carbon steel, and aluminum welding applications.

The protective lens is installed inside the welding gun to protect the optical components from welding spatter and heat.

Anti-spatter welding nozzles work with the protective lens to reduce contamination at the laser outlet.

Supports wire feeding during welding operations and works with the laser welding system for filler wire applications.
For details on the types of laser welding guns, how they work, and selection and maintenance guidelines, see the article: “What Is a Laser Welding Gun? Components, Working Principle & Selection Guide”
KEMPSON 5+1 Laser Welding Lens Kit includes 5 protective lenses and 1 focus lens. The protective lenses are used to block welding spatter and dust, while the focus lens is responsible for laser beam focusing during welding.

| Component | Quantity | Function |
|---|---|---|
| Protective Lens | 5 pcs | Protect the internal optical components from welding spatter and contamination |
| Focus Lens | 1 pc | Focus the laser beam to the required welding position |
The 5+1 lens set is designed for 1000W-6000W handheld laser welding machines and provides replacement components for regular lens maintenance.
For details on the types of laser welding guns, how they work, and selection and maintenance guidelines, see the article: “What Is a Laser Welding Gun? Components, Working Principle & Selection Guide”
| Item | Specification |
|---|---|
| Product Type | Laser Welder Protective Lens Kit |
| Lens Configuration | 5 Protective Lens + 1 Focus Lens |
| Compatible Laser Power | 1000W-6000W |
| Application | Handheld Fiber Laser Welding Machine |
| Lens Function | Optical Protection & Laser Beam Focusing |
| Protective Lens Structure | Eccentric Rotating Design |
| Reuse Frequency | 3-4 Times of Rotation Use per Lens |
| Service Life | 7-15 Days (Depending on Welding Conditions) |
| Protection Features | Anti-Spatter, Dust Protection, Heat Protection |
| Lens Application | Laser Welding Machine Accessories |
| Suitable Materials | Stainless Steel, Carbon Steel, Aluminum and Other Metals |
| Maintenance Method | Lens Position Rotation / Lens Replacement |
KEMPSON Laser Welder Protective Lens is designed for regular maintenance of handheld laser welding machines. The eccentric rotating structure improves lens utilization and reduces replacement frequency during welding operations.
Protective lens and focus lens are both important optical components in a laser welding gun, but they have different functions during welding operation.
| Lens Type | Main Function | Working Role |
| Protective Lens | Protects the internal optical system from welding spatter, dust, and heat | Installed in front of the optical path to reduce contamination and damage to the focus lens |
| Focus Lens | Focuses the laser beam into the welding position | Controls the laser spot size and affects welding penetration and process stability |
The protective lens is a consumable protection component, while the focus lens is a precision optical component responsible for laser beam focusing. Regular inspection and replacement of the protective lens helps protect the focus lens and maintain stable welding quality.
The protective lens should be checked and replaced when welding performance changes or visible contamination appears. Common signs include unstable laser output, reduced welding penetration, black marks on the lens surface, or abnormal lens temperature.
KEMPSON supplies Laser Welder Protective Lens for handheld fiber laser welding machines from 1000W to 6000W. The lens kit includes 5 protective lenses and 1 focus lens, suitable for regular maintenance and lens replacement of laser welding equipment.
The protective lens uses an eccentric rotating structure. When one area of the lens is contaminated, the lens can be rotated to another usable position. One lens can be reused 3-4 times, helping reduce lens replacement and operating costs.
KEMPSON provides laser welding optical accessories with stable quality and flexible supply options. Contact us for protective lens selection, compatible models, and bulk orders.


A laser welder protective lens protects the internal optical components from welding spatter, dust, and heat damage.
Replacement frequency depends on welding conditions. KEMPSON protective lenses can typically be used for 7-15 days under normal conditions.
The protective lens protects the optical system, while the focus lens focuses the laser beam for welding.
Protective lenses may be damaged by welding spatter, excessive heat, contamination, or unstable operating conditions.
Yes. KEMPSON uses a reusable, rotating protective lens design to reduce unnecessary replacements.
Protective lenses are commonly used in handheld fiber laser welding machines.
Using clean maintenance methods, proper gas protection, and anti-spatter protection can extend lens service life.
Yes. KEMPSON can provide customized protective lenses and optical components according to laser welding machine requirements.
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