Laser Welding Nozzle

The Laser Welding Nozzles supplied by LECI are high-quality laser welding accessories designed to accurately direct the laser beam and shielding gas to the weld zone, ensuring stable, clean, and aesthetically consistent welds. Manufactured for durability and high thermal resistance, the nozzles are easy to replace and fully compatible with a wide range of industrial laser welding systems. LECI offers a complete selection of laser welding nozzles, readily available in stock, along with technical consultation and handheld laser welding machine repair services.

Laser Welding Nozzle Specifications

• Product Name: Laser Welding Nozzle
• Applications: Sheet-metal laser welding, spot welding, seam welding, corner welding
• Nozzle Types: Single-jet / Multi-jet / Application-specific nozzle types
• Material: High-conductivity copper alloy / Coated copper (depending on model)
• Heat Resistance: Excellent thermal stability for high-intensity laser welding environments
• Nozzle Orifice Diameter: Customizable (e.g., 0.8 mm / 1.0 mm / 1.2 mm / 1.6 mm, etc.)
• Shielding Gas Flow Angle: Optimized design for uniform gas coverage around the weld pool
• Compatible Shielding Gases: Argon, Nitrogen, and other gases used in laser welding

Compatibility

• Suitable for various handheld laser welding heads and industrial laser welding systems

• Compatible with most fiber-laser welding platforms available on the market

Technical Features

• Precise direction of the laser beam and shielding gas

• Reduced spatter and improved weld surface quality

• Easy installation and replacement

• Long service life with excellent wear resistance

Laser Welding Nozzle Types

LECI supplies a wide range of Laser Welding Nozzles designed in various sizes and configurations to meet specific welding requirements such as seam welding, spot welding, corner welding, and welding of both thin and thick materials. Each nozzle is engineered to optimize shielding gas flow and laser beam direction, enhancing weld quality and ensuring stable performance throughout the welding process.

Laser Welding Nozzle – M8

Material:

• High–thermal conductivity copper alloy or specialized coated copper for laser welding

• Excellent heat resistance, wear resistance, and stability under high-temperature operating conditions

Dimensions:

• Standard M8 threaded interface

• Nozzle orifice options: 0.8 / 1.0 / 1.2 / 1.6 mm

• Length and outer diameter designed according to the specifications of compatible welding heads

Types:

• Available in straight, multi-jet, and converging gas designs (depending on the model)

• Engineered to optimize shielding gas distribution and precise laser beam alignment

Applications:

• Suitable for fiber laser welding heads using the M8 thread standard

• Applicable for welding carbon steel, stainless steel, aluminum, thin sheet materials, and high-speed welding operations

• Ideal for seam welding, spot welding, corner welding, and precision welding tasks

• Compatible with popular welding gun brands such as WSX, Raytools, Qilin, SUP, and others

Some Common M8 Laser Welding Nozzle Sizes

Laser Welding Nozzle – M10

Material:

• High–thermal conductivity copper alloy or specialized coated copper for laser welding

• Excellent heat resistance, wear resistance, and stability in high-power welding environments

Dimensions:

• Standard M10 threaded interface

• Nozzle orifice options: 1.0 / 1.2 / 1.5 / 2.0 mm (depending on application)

• Overall dimensions designed to fit industrial laser welding heads using M10 threads

Types:

• Available in straight, multi-jet, and converging-gas nozzle designs

• Engineered to optimize shielding gas distribution and laser beam direction, reducing spatter and improving penetration stability

Applications:

• Designed for larger fiber laser welding heads with M10 threads

• Suitable for welding thicker materials, high-power welding, and high-speed welding operations

• Ideal for seam welding, corner welding, structural welding, and applications requiring high process stability

• Compatible with various welding gun models such as WSX, Raytools, Qilin, SUP, and others

Some Common M10 Laser Welding Nozzle Sizes

Laser Welding Nozzle – M11

Material:

• High–thermal conductivity copper alloy ensuring stable heat transfer

• Surface treated for wear resistance and excellent thermal stability under high-power laser welding conditions

Dimensions:

• Standard M11 threaded interface

• Nozzle orifice options: 1.0 / 1.2 / 1.5 / 2.0 mm (depending on application requirements)

• Dimensions compatible with M11-thread laser welding heads from various manufacturers

Types:

• Available in straight, multi-jet, and converging-gas designs

• Engineered for optimal shielding gas flow, reducing slag adhesion, minimizing spatter, and maintaining a stable laser focal zone

Applications:

• Suitable for fiber laser welding heads using the M11 thread standard

• Ideal for welding carbon steel, stainless steel, aluminum, and alloys in high-speed or thicker-material welding applications

• Optimized for structural welding, long-seam welding, and applications demanding high precision and weld consistency

• Compatible with welding guns such as WSX, Raytools, Qilin, SUP, and others

Some Common M11 Laser Welding Nozzle Sizes

Laser Welding Nozzle – M13

Material:

• High–thermal conductivity copper alloy, ensuring stable heat transfer and minimizing heat accumulation in the weld zone

• Surface-treated for superior wear resistance and capable of withstanding high temperatures and pressure during high-power laser welding

Dimensions:

• Standard M13 threaded interface

• Nozzle orifice options: 1.2 / 1.5 / 2.0 / 2.5 mm (suitable for various welding modes)

• Overall dimensions fully compatible with fiber laser welding heads using M13 threads

Types:

• Available in straight, multi-jet, and converging-gas designs

• Optimized shielding gas distribution for improved laser arc stability, reduced slag adhesion, and enhanced weld quality

Applications:

• Designed for high-power fiber laser welding heads with the M13 thread standard

• Suitable for welding thick steel, structural components, high-speed welds, and applications requiring deep penetration

• Ideal for continuous industrial welding operations where high durability and process stability are essential

• Compatible with welding gun brands such as WSX, Raytools, Qilin, SUP, and more

Some Common M13 Laser Welding Nozzle Sizes

Laser Welding Nozzle – M16

Material:

• High–thermal conductivity copper alloy for rapid heat dissipation and a stable laser focal zone

• Surface-treated for excellent wear resistance, capable of withstanding high temperatures and demanding high-power welding environments

• High hardness to minimize deformation during continuous operation

Dimensions:

• Standard M16 threaded interface

• Nozzle orifice options: 1.5 / 2.0 / 2.5 / 3.0 mm to support a wide range of welding modes

• Overall dimensions compatible with industrial fiber laser welding heads using M16 threads

Types:

• Available in straight, multi-jet, and converging-gas nozzle designs

• Engineered to optimize shielding gas flow, reduce oxidation in the weld zone, stabilize the laser beam, and minimize slag adhesion

Applications:

• Designed for high-power fiber laser welding heads with the M16 thread standard

• Suitable for welding thick steel, large structural components, high-speed welding, and applications requiring deep penetration

• Ideal for continuous industrial operation, ensuring weld stability and extended accessory lifespan

• Compatible with welding gun brands such as WSX, Raytools, Qilin, SUP, and others

Some Common M16 Laser Welding Nozzle Sizes

What Is a Laser Welding Nozzle?

A laser welding nozzle is a critical accessory within a laser welding system. Its primary function is to direct the laser beam and shielding gas precisely to the weld zone, ensuring high accuracy, stability, and consistency throughout the welding process. The nozzle is manufactured with high precision to provide excellent heat resistance and maintain stable performance under high-intensity welding conditions.

Laser welding nozzles are made from specialized high-durability materials that offer superior wear resistance and thermal stability. This construction helps extend the service life of the nozzle and minimizes deformation during operation. With an optimized design that concentrates laser energy effectively, the nozzle improves weld quality, reduces spatter, and enhances the overall appearance of the welded surface.

How to choose the right Laser Welding Nozzle for your welding machine

Selecting the correct laser welding nozzle is essential to achieving high-quality welds, minimizing spatter, optimizing penetration, and extending the lifespan of your welding equipment. To choose the right nozzle for your laser welding machine, several key technical factors must be considered:

Choose the Correct Thread Size for the Welding Head

Each laser welding head is designed for a specific nozzle thread standard:

• M8 – for low- and mid-power welding guns

• M10 / M11 – commonly used for 1000–2000W welding heads

• M13 / M16 – designed for high-power welding heads (3000W and above)

Using an incorrect thread will prevent proper installation or result in poor gas sealing.

Determine the Appropriate Nozzle Orifice Size

The FI diameter of the nozzle directly affects:

• Shielding gas flow rate

• Laser beam concentration

• Weld penetration and weld stability

Common orifice sizes: 0.8 – 3.0 mm

• Small orifice → higher energy concentration, ideal for thin materials

• Large orifice → better gas diffusion, suitable for thick materials and high-power welding

Select the Proper Gas Flow Design

Different nozzle structures create different gas flow patterns:

• Single-jet nozzle – basic welding, lower spatter

• Multi-jet nozzle – improved stability, ideal for high-speed welding

• Converging-gas nozzle – reduced oxidation, optimized for stainless steel and aluminum

Choosing the wrong gas flow design may cause porosity, oxidation, or weld contamination.

Ensure Compatibility with the Welding Gun Model

There are many laser welding gun models on the market, each requiring a specific nozzle type. Variations in thread size, length, diameter, and gas structure can make selection challenging. For safety, performance, and durability, the nozzle must be 100% compatible with the welding gun.

Expert Support from LECI

If you are unsure which nozzle is suitable for your welding head, LECI is ready to assist. With over 13 years of experience in the laser industry and thousands of successful applications, LECI provides accurate recommendations to ensure the correct nozzle selection for your welding system.

Contact infomation:

• LECI Co., Ltd

• Room 1901, Saigon Trade Center, No. 37 Ton Duc Thang Street, Saigon Ward, Ho Chi Minh City, Vietnam

• Long Bien, Ha Noi, VN.

• Phone: (+84) 901442689 (WhatsApp)

• Hotline: 02822202988

• Website: lecilaser.com