The 4-Inch Coaxial Wire-Fed Laser Processing Head is a compact wire-fed laser cladding head developed for precision internal bore laser cladding in confined components with bore diameters of 100 mm and above. Its reflective off-axis wire feeding design supports a wide range of wire materials, including steel- and copper-based alloys, while achieving up to 100% material utilization. The head can also be integrated with robotic systems for vertical deposition and the processing of complex curved internal surfaces.
With low heat input and limited thermal influence on the substrate, the head produces smooth, dense cladding layers with minimal distortion and reliable metallurgical bonding. Designed as a laser cladding head for internal diameters of 100 mm and above, it provides an efficient solution for small-diameter internal surface repair using wire-fed laser cladding, as well as dimensional restoration, wear protection, and remanufacturing of high-value industrial components.
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| Beam Quality | Process Monitoring | Material Compatibility | |||
Optimized optical design provides stable beam delivery and uniform energy distribution. The beam profile and spot size are matched to the head design and target application. | Optional monitoring functions can include lens temperature monitoring, molten pool observation, process temperature sensing, and real-time process feedback to improve operating stability and process consistency. | Compatible with a wide range of metallic materials, including iron-based, nickel-based, cobalt-based, copper-based, and titanium alloys, depending on the head setup, laser parameters, and feeding method. | |||
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| Modular Design | Thermal Management & Protection | Industrial Integration | |||
The optical system, cooling structure, monitoring components, and material delivery modules are designed for convenient assembly, maintenance, and replacement. Modular construction also makes customized configurations easier for different industrial applications. | Efficient water cooling helps maintain stable operating temperatures during continuous processing. Protective design features can include dust resistance, spatter protection, sealing structures, and optional thermal monitoring for reliable operation. | Compatible with CNC machines, robots, positioners, and automated laser systems. Optical interfaces, working distance, beam setup, and wire feeding can be tailored to the application. |
Model | Performance Parameters |
Power Options | 6 kW |
Fiber Interface | QBH |
Spot Size | ~ Φ5 |
Outer Dimension(mm) | 1600×80×80 |
Machinable Inner Hole Diameter(mm) | ≥Φ100 |
Operating Wavelength(nm) | 1080 |
Cooling Type | Water cooling |
Water Quality Requirements | Pure water |
Internal wire-fed repair
High-build deposition
Mechanical sleeves
Large bushings
Industrial pipe repair
Corrosion restoration
Q1: What is the minimum internal diameter this 4-inch coaxial laser processing head can access?
A1: This internal cladding head is specifically designed for narrow internal surfaces with a minimum diameter of 100 mm (approximately 4
inches). The reflective coaxial powder feeding system with four-way powder distribution ensures stable deposition even in confined bore
spaces, making it ideal for high-precision remanufacturing and repair of small-diameter hydraulic components, pipe interiors, and mining
bushings.
Q2: How does this internal cladding head prevent distortion on small-diameter or thin-walled components?
A2: The 4-inch coaxial head features low heat input design with minimal thermal impact on the substrate, producing low-distortion cladding
layers with excellent surface flatness. This is critical for maintaining tight dimensional tolerances on small-diameter internal components
such as cylinder barrels, plunger bores, and precision hydraulic parts — where excessive heat could cause warping or loss of fit.
