Plasma Transferred Arc (PTA) welding technology represents a quantum leap in surface engineering. Unlike traditional TIG or MIG welding, PTA utilizes a constricted, high-energy plasma arc to melt both the surface of the base material and a metered amount of alloy powder. This process creates a metallurgical bond that is vastly superior to thermal sprays and mechanical coatings.
As a premier Plasma Transferred Arc Welding Equipment Manufacturer, Shanghai Duomu has spent over a decade perfecting the "Low Dilution, High Bond" ratio. In industrial hardfacing, the goal is to deposit a wear-resistant layer with minimal mixing from the substrate. Our PTA systems achieve dilution rates as low as 5%, ensuring that the alloy's properties—whether they be hardness, corrosion resistance, or high-temperature stability—are fully realized.
Certified Quality Management
Enhancing the lifespan of plows, tillers, and harvesters by applying tungsten carbide overlays to components exposed to high-abrasion soil conditions.
Precision repair of turbine blades and engine components using our Laser Cladding Machine for Blades. Achieving zero-defect metallurgical integrity.
Providing corrosion and wear protection for drill collars, stabilizers, and valve seats operating in the harshest offshore and desert environments.
Our Automatic Plasma Cladding Systems are used to refurbish continuous casting rollers and forging dies, effectively doubling their service life and reducing downtime costs by up to 60%.
Located in the heart of Shanghai's industrial Jiading District, our factory leverages a robust supply chain ecosystem. This proximity to high-grade raw material suppliers and logistics hubs allows us to maintain uninterrupted production cycles and rapid global shipping capabilities.
Our R&D is currently focused on AI-Driven Weld Path Optimization. By integrating machine vision and real-time sensor feedback, our next generation of equipment will automatically adjust arc voltage and powder flow to compensate for workpiece irregularities.
We adhere to international standards including CE certification and ASME guidelines. Our equipment is exported to Europe, North America, and Southeast Asia, supported by local technicians and 24-hour digital troubleshooting.
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 independent R&D team develops, produces and sells plasma cladding machine equipment with stable performance for 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. We provide customized equipment, automatic laser cladding equipment, automatic plasma cladding equipment, and intelligent robot cladding equipment.
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. Dilution refers to the percentage of base metal that melts and mixes into the deposited alloy layer. High dilution can "poison" the overlay, significantly reducing its hardness and wear resistance.
For industrial equipment operating in abrasive, erosive, corrosive, or high-temperature environments, wear is inevitable. The real challenge is not preventing wear altogether but choosing the most cost-effective maintenance strategy. Whether you are dealing with mud pump valve seats or screw conveyors, PTA provides a solution that traditional welding cannot match in terms of precision and longevity.
PTA uses a plasma arc and is generally more cost-effective for thicker overlays (2-5mm) and high deposition rates. Laser cladding uses a laser beam, offering even lower heat input and higher precision, ideal for thin layers and delicate components like turbine blades.
Yes, we specialize in Deep Hole Welding Torches and Double Cone Injection Molding Machine Barrel inner hole cladding systems, designed to reach deep into cylindrical components to provide wear protection.
Our equipment supports a wide range of powders, including Cobalt-based (Stellite), Nickel-based, Iron-based alloys, and Tungsten Carbide (WC) composites.
Absolutely. We provide comprehensive manuals, remote video commissioning, and have a network of technical partners globally to ensure your equipment maintains maximum uptime.
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For inquiries about our PTA cladding equipment, customized automated systems, or current pricelists, please leave your details. Our engineering department will touch base within 24 hours to provide a tailored industrial solution.
📍 Unit 2, No.615 Feng Deng Road, Jiading District, Shanghai, China
