Industrial grade laser and plasma transferred arc (PTA) cladding solutions engineered for extreme wear and corrosion resistance.
In the modern industrial landscape, global supply chain volatility and aggressive carbon-reduction mandates (specifically Scope 3 emission targets) have driven a paradigm shift from part replacement to precision remanufacturing. Metal additive manufacturing processes, particularly Laser Cladding and PTA (Plasma Transferred Arc) cladding, represent the pinnacle of surface engineering. By depositing high-performance alloys precisely onto worn substrates, manufacturers extend component lifespans by up to 300% while reducing energy expenditures by over 70% compared to new component fabrication.
Shanghai Duomu has stood at the forefront of this industrial revolution for over a decade. We specialize in configuring integrated industrial solutions that cross-reference robotic kinematics, advanced beam optics, and real-time melt pool pyrometry to address wear, heat, erosion, and chemical corrosion in critical machinery.
Understanding the physics, kinematics, and materials science behind high-end additive overlay cladding systems.
Our custom laser cladding machines incorporate top-tier fiber or direct-diode laser sources ranging from 2 kW to 10 kW. Designed with modular processing heads, these systems maintain beam homogeneity and energy density profiles that yield extremely low dilution rates (<5%), preserving the chemistry of the premium powder alloys.
Integrating 6-axis robotic arms coupled with multi-axis heavy-duty positioners allows Duomu systems to overlay complex geometries, including corner weld paths, non-axisymmetric screw brick machinery parts, and curved hydraulic rod cylinders with consistent cladding thickness.
To avoid cracks and porosity, particularly when clad-welding cobalt-based alloys (Stellite) or nickel-based superalloys (Inconel), our systems employ closed-loop optical pyrometry and temperature-monitored preheating modules, keeping the Heat Affected Zone (HAZ) minimal.
At present, the company's products have penetrated into many fields such as aerospace military industry, nuclear power, petrochemical industry, coal mines, metallurgy and forging, agriculture, water conservancy and electric power, etc.
Hardfacing components such as subsoiler shanks, plowshares, and harvester blades. Custom cladding using cobalt and tungsten-carbide alloys ensures tools withstand highly abrasive soils and high impact forces.
High-precision laser cladding for aero-engine turbine blades, compressor shafts, and critical structural mounts. Requires minimal heat input and strict adherence to defense metallurgical criteria.
Preventing corrosion and mechanical wear on downhole drill collars, stabilizers, mud pumps, and industrial valves. Using PTA and laser cladding reduces critical component failures in offshore drilling operations.
Repairing work rolls, extrusion dies, and metallurgical molds subjected to severe thermal fatigue and high pressures. Laser hardening and cladding improve operational continuity and minimize mill downtime.
Shanghai Duomu has been a leading manufacturer and exporter of PTA cladding machine and Laser cladding machine for more than ten years with a strong technical background. We maintain an independent R&D team that develops, produces, and sells plasma cladding machine equipment globally.
Our proprietary welding machines maintain highly stable performance and can support continuous, long-term, high-duty-cycle industrial operations. Furthermore, the laser cladding equipment engineered and sold by our company effectively supports large-scale remanufacturing projects. We offer mature metallurgical technologies, providing complete sets of integrated industrial solutions to streamline production workflows for global heavy industries.
A rigorous comparative analysis to guide procurement engineers and quality departments in process selection.
| Parameter | Laser Cladding Systems | PTA Cladding Systems |
|---|---|---|
| Energy Source | High-Power Fiber/Diode Laser (up to 10kW) | Transferred Arc Plasma Gas |
| Dilution Rate | Minimal (< 2% to 5%) | Moderate (5% to 10%) |
| Heat-Affected Zone (HAZ) | Extremely Narrow (0.2 - 0.8 mm) | Narrow to Moderate (1.0 - 2.5 mm) |
| Bonding Type | True Metallurgical Bond (> 350 MPa) | True Metallurgical Bond (> 300 MPa) |
| Feed Materials | Fine Powders (15-53 µm / 53-150 µm) or Wire | Coarser Powder Blends or Rods |
| Optimal Application | Precision aerospace components, hydraulic rods, rotors | Heavy-duty valves, extrusion screws, mining picks |
Building long-term operational reliability with comprehensive quality management and technical support.
All machinery produced by Shanghai Duomu conforms to international design regulations including the CE Machinery Directive, ISO 9001:2015 Quality Management Systems, and relevant laser safety specifications (IEC 60825-1). Our welding procedures align with AWS D14.7 (Specification for Reconstruction and Repair of Rotary Industrial Equipment).
We perform systematic metallurgical analysis on feedstock powders, including scanning electron microscopy (SEM) checks for spherical morphology and particle size distribution. This guarantees repeatable deposition rates, avoiding uneven melting and spatter in automatic systems.
Our localized service networks provide seamless installation, alignment, calibration, and training. Whether you run a hydraulic cylinder repair shop in South America, a valve plant in Europe, or mining equipment maintenance in Australia, we offer 24-hour technical response times.
Browse our advanced plasma bore torches, gantry systems, and specialized components for high-duty cycle industrial fabrication.
We design custom equipment, automatic laser cladding equipment, automatic plasma cladding equipment, and intelligent robot cladding systems tailored to precise operating standards.
Optimized for structural wear plates and industrial valve hardfacing with consistent metallurgical composition.
Features digital parameter inputs to manage gas flow, powder delivery, and torch movements simultaneously.
Highly adaptable design suitable for engineering job-shops servicing multi-geometry components.
Engineered for minimal thermal input on complex curved aerospace and power turbine blade surfaces.
Provides precise rotary step-over deposition paths for high-density spherical sealing rings.
Localized laser surface hardening with rapid cooling phase controls to achieve high surface hardness.
Real metallurgical insights demonstrating performance modifications under heavy wear, abrasion, and thermal load conditions.
"The PTA Welding Valve Application Guide is not just a process choice for valve manufacturers facing high wear, high corrosion, and high-temperature erosion working conditions, but also a key path to improving product competitiveness. As industries such as petrochemical, power gen, and chemical processing push operating envelopes, our cladding systems guarantee long-term integrity."
"In industries such as mining, cement, power generation, steelmaking, chemical processing, and biomass energy, screw conveyors are often regarded as auxiliary equipment. However, maintenance data shows that they are among the most frequent causes of unplanned production delays. Cladding prevents screw pitch degradation."
"In Plasma Transferred Arc (PTA) hardfacing, achieving a high-quality overlay is not only about selecting the right alloy powder or optimizing welding parameters. One of the most critical factors that directly affects overlay performance is the dilution rate. Minimizing substrate mixing prevents soft carbon zones."
"In industries such as Oil & Gas, Mining, Power Generation, Cement, and Heavy Equipment Manufacturing, hardfacing is no longer just a repair process. It has become a critical technology directly related to equipment lifespan, downtime costs, maintenance frequency, and process optimizations."
"In industries such as oil & gas, petrochemical, power generation, mining, and marine engineering, industrial valves are constantly exposed to severe operating conditions including: High pressure, Extreme temperatures, Corrosive media, Abrasive wear, and Sand erosion. Laser cladding with cobalt-based superalloys provides the high-hardness, corrosion-resistant sealing faces required to prevent leaks."
Duomu machines are trusted across key manufacturing hubs, heavy foundries, and international research laboratories.
Get professional answers to technical specifications, configuration options, and installation criteria.
Laser cladding offers a lower heat input, resulting in an extremely narrow Heat-Affected Zone (HAZ) and minimal dilution rates (<5% compared to 5-10% in PTA). This preserves the chemical properties of the deposited alloy powder layer, requiring thinner deposit coatings to achieve maximum corrosion or wear resistance.
Yes. We customize multi-axis robotic cladding integrations (usually 6-axis configurations coupled with two-axis rotating tilt tables). We design custom gantries, cantilever setups, and linear tracks to extend the movement envelope according to target component dimensions.
Our systems support a wide range of metal powders, including cobalt-based alloys (Stellite series), nickel-based superalloys (Inconel series), iron-based stainless steels, and carbide composite powders (such as spherical Tungsten Carbide mixed with nickel matrices) to build extreme wear resistance.
Typically, we use non-destructive testing (NDT) such as dye penetrant inspections, ultrasonic testing (UT), and eddy current checks to ensure the absence of sub-surface cracks, interface voids, or high porosity within the clad layer.
Yes, all high-power laser and plasma cladding machines include high-capacity industrial dual-temperature water chillers. These systems precisely maintain thermal balance at the laser source, delivery optics, and cladding nozzles, securing stable power output during continuous operations.
For inquiries about our custom equipment, PTA systems, or pricing, please contact us. Our technical support team responds within 24 hours.
Send Inquiry / Get Tech Spec Sheets
Duomu