
The Coaxial LMD Head for External Cylindrical Cladding combines a transmissive optical system with a four-way precision coaxial powder-feeding design for high-efficiency external cylindrical laser cladding. Four powder streams converge accurately at the center of the laser spot, supporting uniform powder delivery, stable melt-pool interaction, and repeatable powder-fed laser metal deposition on external cylindrical and complex-shaped surfaces.
Designed for robotic integration and vertical-position processing, the head supports automated cladding across changing orientations. Its four-way powder-feeding configuration is particularly well suited to vertical deposition, where controlled multi-directional powder delivery helps maintain process stability. Powder utilization exceeds 90%, helping reduce alloy waste while producing smooth, low-distortion cladding layers with good surface flatness and consistent deposition quality.
Compatible with high-hardness alloys and metal-matrix carbide coatings, the head is suitable for wear-resistant surface enhancement, localized repair, dimensional restoration, and remanufacturing. For OEMs, repair centers, and system integrators seeking a four-way coaxial laser cladding head for external cylindrical repair and wear-resistant coating deposition, it combines efficient powder use, precise material delivery, stable vertical processing, and flexible robotic integration.
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.
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.
Designed for CNC machines, robots, positioners, and automated laser systems. Optical interfaces, working distance, beam setup, and material feeding can be tailored for the application.
Model | Performance Parameters |
Power Options | 6 kW/12 kW |
Fiber Interface | LOE |
Spot Size | ~ Φ6.5 |
Outer Dimension(mm) | 370×75×75 |
Working Distance(mm) | ~20 |
Operating Wavelength(nm) | 1080 |
Cooling Type | Water cooling |
Water Quality Requirements | Pure water |

Precision shaft remanufacturing
Bearing journals
Pump shafts
Compressor shafts
High-value rotating components
Surface wear restoration
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Q1: What is the advantage of the four-way coaxial powder feeding design compared to conventional annular powder feeding systems?
A1: The four-way coaxial precision powder feeding design ensures that powder streams converge accurately at the center of the laser spot,
delivering significantly better vertical deposition performance than conventional annular systems. This makes the head ideal for complex-
shaped surfaces and vertical cladding applications, while maintaining powder utilization rates exceeding 90%, minimal distortion, and
excellent surface flatness.
Q2: What types of materials can this coaxial LMD head process, and does it support carbide coatings?
A2: This head supports a wide range of materials, including iron-based, nickel-based, cobalt-based, copper, titanium alloys, and high-hardness
alloys. It is also compatible with metal matrix carbide coatings, making it suitable for demanding wear protection and surface enhancement
applications across industries such as mining, steel rolling, power transmission, and hydraulic systems.








