Engineered for extreme reliability, precision metallurgy, and rapid cycles
The global manufacturing paradigm is transitioning rapidly toward miniaturization, extreme wear resistance, and minimized thermal deformation. Industries such as E-mobility, advanced semiconductor packaging, medical technology, and micro-aerospace require highly localized, precise heat input that only Mikro Laserschweißen (Micro Laser Welding) and advanced micro-plasma technologies can offer.
Traditional welding methods inevitably generate a large Heat-Affected Zone (HAZ), which degrades mechanical properties and distorts micro-components. Shanghai Duomu has built a decade-long legacy, providing robust, digitally-monitored micro laser and PTA cladding solutions to satisfy strict industrial regulations globally. Our platforms guarantee high consistency, allowing multinational factories to deploy automated lines with minimum training overhead.
Dedicated research in PTA & Laser micro technologies
Optimal metallurgical bond with minimal dilution
Real-time parameters monitoring & quality logs
Global technical service footprint and compliance
Deciphering key challenges faced by engineering directors and supply chain managers
Different base materials demand custom powder formulations or wave pulses. We configure tailored micro-cladding alloys to ensure crack-free layers on high-carbon and nickel-based superalloys.
Our intelligent robot cladding equipment easily connects to your central factory system (ERP/MES) through modern fieldbus protocols. This allows for automated, hands-off operation on three-dimensional shapes.
We source long-lasting, heat-resistant components like our specialty tungsten electrodes. This reduces maintenance stops, keeping your production line running smoothly with minimal manual intervention.
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.
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 house an independent R&D team, which 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.
Our manufacturing philosophy focuses on precision engineering, enabling us to customize equipment, automatic laser cladding equipment, automatic plasma cladding equipment, and intelligent robot cladding equipment. Whether you require standard machinery or special configurations like hydraulic rod cladding machines, pick cladding machines, or valve cladding machines, our technical department delivers reliable, field-tested performance.
Engineered specifically to solve complex surfacing, hardening, and repair applications
From design to deployment, we deliver solutions tailored to your unique wear and temperature parameters.
Technical analyses demonstrating performance improvements in real-world operating environments
"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, and marine engineering advance, standard components require much higher surface 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 shutdowns when wear is unaddressed."
"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 cobalt or iron-base alloys, keeping dilution minimal is essential to protect the mechanical properties."
"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 overall bottom-line profitability."
"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."
Technical responses to common engineering, process, and integration questions
Mikro Laserschweißen offers the absolute minimum heat-affected zone due to its extremely concentrated photonic energy. The laser pulse duration is measured in milliseconds, localizing heat dissipation. Micro-PTA (Plasma Transferred Arc) has a slightly larger HAZ but offers superior cladding deposition rates and metallurgical bonds when applying thicker hardfacing layers. The choice depends on substrate thickness and tolerance for thermal deformation.
A high dilution rate means the parent metal mixes excessively with the surfacing alloy, reducing the hardness, corrosion resistance, and wear resistance of the top layer. By optimizing our PTA and laser systems, Shanghai Duomu achieves dilution rates under 5%, preserving the full chemical characteristics of Stellite, Colmonoy, or tungsten carbide alloys from the very first layer.
Yes. Our proprietary powder feeding systems are designed to handle various metal powders, including tungsten carbides, cobalt-based alloys (Stellite), nickel-based alloys, and iron-based formulations. We provide customizable powder wheel profiles to guarantee consistent, pulsation-free powder delivery, which is vital for thin-wall micro-plasma and laser cladding processes.
Our technical department provides full mechanical and digital integration. We configure robotic interfaces, custom CNC linear slides, multi-axis positioners, and software routines. This allows for closed-loop parameters control, ensuring complete traceability and part-to-part consistency across high-volume production cycles.
Our micro plasma bore torches feature robust internal water-cooling systems that allow for high duty cycles even within restricted diameters. Maintenance typically involves replacing the tungsten electrode, gas lens, and nozzle caps at regular intervals. By utilizing our heat-resistant tungsten electrodes, customers report up to a 40% reduction in consumable changeover frequency.
High-performance platforms designed for precise surface treatment and heavy industrial reclamation
Partnering with leading enterprises across the metallurgical, chemical, and aerospace sectors
For inquiries about our products, customized systems, or complete process pricelists, please leave us a message. Our technical sales engineering team will reach out within 24 hours.
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