High-Quality Soudage Plasma Manufacturer & Manufacturers

Precision PTA Cladding Systems, Laser Surfacing Robots & Turnkey Industrial Solutions

Shanghai Duomu Cladding Machine

Leading the Era of Advanced Metallurgical Overlay

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. Our systems integrate advanced automated controls, precision powder feeding components, and robust power supplies designed for high-density surfacing applications.

By constantly researching thermal physics and metallurgy, we enable industries globally to extend the service life of critical infrastructure components. Our engineering excellence ensures that we provide systems that satisfy strict industrial standards, providing minimal dilution rates, excellent bonding strength, and unmatched wear performance.

Proprietary R&D & Advanced Technical Engineering

We boast an independent R&D team that develops, produces, and sells plasma cladding machine equipment. The welding machine has stable performance and can maintain efficient long-term operation. In addition, the laser cladding equipment sold by the company can effectively support large-scale remanufacturing projects. We have mature technological means to provide complete sets of industrial equipment solutions.

Whether you require a custom robotic integration or a specialized multi-axis CNC cladding workstation, our engineering department provides comprehensive FEA simulations, trajectory planning, and metallurgical analysis to ensure operational readiness.

Duomu Technical Department Workstation

Global Technological Trends in Soudage Plasma

Strategic insights into the engineering shifts driving modern thermal surfacing technologies.

Robotic Automation & AI Trajectory

Modern production facilities require intelligent integration. Our multi-axis robotic platforms adapt real-time paths to account for base metal deviations, ensuring stable deposit profile geometry and homogeneous microstructure alignment during high-speed cladding runs.

Dilution Control and Metallurgical Integrity

Reducing base material dilution is paramount. By deploying specialized transferred arc geometry, our systems restrict dilution rates to under 5% on the first layer, retaining the pure chemical configuration of exotic alloys like Stellite, Colmonoy, and Hastelloy.

Green Cladding & Powder Conservation

With precise gas dynamic controls, we optimize powder delivery vectors, achieving up to 95% deposition efficiency. This vastly limits resource waste when spraying costly nickel-based superalloys or carbide matrices.

10+
Years R&D Excellence
95%
Powder Recovery Rate
< 5%
Dilution Rate Achieved
100%
Custom Solution Engineering

Industrial Application Verticals

Our products have penetrated into many fields such as aerospace, military, nuclear power, petrochemicals, coal mines, metallurgy, and water conservancy.

Agricultural machinery

Agricultural Machinery

Wear-resistant surfacing for harvesting blades, subsoiler tips, and soil tillers subjected to extreme abrasiveness.

Aerospace military industry

Aerospace Military

High-precision alloy deposit overlays for defense components, propulsion blades, and structural aircraft elements.

Petroleum machinery

Petroleum Machinery

Corrosion resistant cladding overlays for valves, deep-hole drilling equipment, and marine transport pipelines.

Metallurgy casting

Metallurgy Casting

Restoration of continuous casting rollers, guides, and molds to withstand extreme thermal cycle shocks.

Tailored Engineering & Specialized Cladding Systems

We provide customized equipment, automatic laser cladding equipment, automatic plasma cladding equipment, and intelligent robot cladding equipment.

plasma powder surfacing machine DML-V03CD

plasma powder surfacing machine DML-V03CD

integrated multifunctional plasma powder welding

integrated multifunctional plasma powder welding

multifunctional plasma powder welding machine

multifunctional plasma powder welding machine

Laser cladding machine for blades

Laser cladding machine for blades

Ball Valve Automated Welding Equipment DQF-LC602

Ball Valve Automated Welding Equipment DQF-LC602

Laser hardening robot

Laser hardening robot

DYY-LC501 Hydraulic rod automatic plasma cladding

DYY-LC501 Hydraulic rod automatic plasma cladding

Specially configured for fluid power industries. The system delivers a perfectly continuous overlay coat with high density, low defect rate, and exceptional tolerance controls for heavy duty hydraulic cylinders.

Global Procurement Demands & Industrial Solutions

Solving complex supply-chain, regulatory, and process optimization challenges for global enterprises.

Macroscopic Equipment Customization

Industrial components exist in countless configurations. A standard off-the-shelf system will not suffice for critical valve gates or mining dragline components. Shanghai Duomu solves this through tailored mechanical systems. From specialized internal-bore welding torches to long-reach cantilever gantry frames, we match customer geometries perfectly. This is supported by custom program generation interfaces, simplifying operator interaction and system commissioning.

International Compliance & Validation

Every manufacturing line must respect strict quality management benchmarks. Our PTA and laser cladding systems conform to European CE standards and ISO quality regulations. During fabrication, we ensure full metallurgical traceability, enabling our partners to quickly achieve aerospace and nuclear safety qualification audits. By managing all internal component calibrations, we build systems that reliably pass international industrial inspections.

Operational Integration Roadmap

A structured approach to transitioning from standard processes to high-yield automated PTA cladding.

01

Substrate Audit

Evaluating parent steel composition, geometric tolerances, thermal conduction coefficients, and metallurgical conditions.

02

Powder Matrix Definition

Formulating alloy additions—from Tungsten Carbides in nickel matrix to Cobalt cobalt-base superalloys for hot wear.

03

Trajectory Simulation

Validating path limits using advanced CAD tools, preventing heat concentration hotspots, and assuring layer thickness consistency.

04

System Deployment

Factory Acceptance Testing (FAT) followed by deep operator configuration training, local calibration, and commissioning.

Expert Metallurgical Q&A & Technical Guidelines

Direct technical answers from Shanghai Duomu's senior metallurgy and laser-cladding engineers.

What is the core difference between PTA cladding and Laser cladding? +
PTA (Plasma Transferred Arc) uses an ionized gas column (plasma) as a thermal heat source. It creates a relatively high thermal input, allowing for high deposition rates (often exceeding 6 kg/hr) and perfect metallurgical bonding with materials that might reflect laser beams. Laser cladding uses a concentrated light beam, which results in a smaller heat-affected zone (HAZ), exceptionally low dilution rates (down to 1%), and negligible distortion. Selection depends on component geometry, base metals, and performance targets.
How does Shanghai Duomu guarantee dilution rate containment? +
Dilution occurs when the parent metal melts and mixes with the cladding layer, changing the alloy properties. We limit dilution through two primary methods: precise arc current stabilization control, and specialized torch cooling geometry. By precisely targeting power delivery and stabilizing powder feed rates, our PTA nozzles melt only a microscopic layer of the substrate, ensuring first-layer dilution values below 5%.
Which types of powders can be processed by Duomu's PTA and Laser Cladding systems? +
Our hardware processes a diverse selection of industrial spherical powders. This includes Cobalt-based alloys (Stellite series) for hot hardness, Nickel-based self-fluxing alloys (Colmonoy) for superior corrosion resistance, Iron-based matrix systems, and composite formulations containing Tungsten Carbides (NiCrBSi-WC) for severe abrasive wear.
Can these systems cladding internal bore dimensions and hard-to-reach chambers? +
Yes, we design specialized internal bore welding torches, such as the DNPT50019-HQ. These systems can fit inside bores as narrow as 50mm, enabling automated hardfacing on internal walls of heavy valve casings, extrusion pipes, and oilfield cross-connectors.
What local post-sales technical support do you offer? +
We provide remote diagnostic support and physical site technicians for installation, calibration, and training. All of our equipment comes with standard component replacement pathways and lifetime programmatic firmware updates to ensure your lines experience maximum runtime.

Industrial Testimonials & Technical Case Studies

Discover how engineering departments globally leverage Duomu systems to optimize reliability.

"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 and nuclear plant systems require extreme reliability, Duomu's PTA equipment has met our expectations."

Valve Engineering Expert
Senior Valve Metallurgist Petrochemical Industry Group

"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 downs. Integrating Duomu's automatic cantilever PTA system resolved our screw wear issues entirely."

Mining Maintenance lead
Operations Director Heavy Material Transport Systems

"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. Whether you require micro overlays or heavy volume cladding, Duomu systems manage energy output perfectly."

Welding Process Consultant
Metallurgical Process Engineer Surface Treatment Consulting

"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 stability. Our transition to Duomu's robotic surfacing cell saved our line thousands in maintenance costs annually."

Oil & Gas procurement lead
Supply Chain Manager Global Oilfield Components Corp

"Industrial valves are constantly exposed to severe operating conditions including high pressure, extreme temperatures, corrosive media, abrasive wear, and sand erosion. Choosing PTA hardfacing from Duomu has enabled our design department to specify base structures with carbon steel, while claddings the seating surfaces with cobalt-alloys, saving cost."

Valve technology expert
Technical Valve Specialist High Pressure Fluidics Group
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