Explore our leading industrial-grade systems engineered for precision performance, low dilution rates, and microstructural optimization.
A technical overview of pulsed energy management in Plasma Transferred Arc (PTA) and Laser Cladding systems.
Saldatura Pulsata (pulsed welding) enables highly precise cycle controls. By pulsing the current, heat output is restricted, limiting deformation, controlling heat-affected zones (HAZ), and maintaining structural integrity in delicate substrates.
Traditional welding melts the base material, degrading the quality of the overlay. Our pulsed PTA system limits base metal melt, securing a dilution rate below 5% for highly pure, robust hardfacing overlays.
The rapid cycling of high peak currents followed by base cooling phases forces immediate solidification of the molten pool. This refines dendritic grains, yielding high resistance to impact and heavy abrasive wear.
Modern industrial components are subjected to extreme operating conditions, including severe sliding abrasion, high mechanical stress, and aggressive corrosive chemical attacks. Under these conditions, the traditional strategy of replacing worn components incurs significant direct material costs and expensive plant downtime. Advanced surface modification processes, particularly Saldatura Pulsata (Pulsed Arc / Pulsed Plasma Cladding) and precision Laser Cladding, have emerged as primary pathways for both high-end part manufacturing and component life extension.
As a premier global developer, Shanghai Duomu leverages over a decade of technological experience to pioneer cladding configurations. By coupling advanced robotic motion controls with state-of-the-art power distribution hardware, our systems deliver unprecedented control over the thermal weld cycle, defining new performance standards for industrial surface engineering.
Standard continuous-current PTA and TIG surfacing processes run a constant thermal input, accumulating heat in the workpiece. This high continuous heat load triggers multiple metallurgical complications, such as coarse grain growth in the clad layer, a large heat-affected zone (HAZ), distortion of critical machine geometry, and elevated dilution rates. High dilution levels allow substrate materials to mix with the overlay, reducing the wear-resistance properties of high-alloy surfacing powders.
In contrast, Saldatura Pulsata regulates the deposition energy by toggling the welding current between a high *Peak Current* and a lower *Base Current* at high frequencies. The peak current serves to melt the hardfacing powder and a thin surface layer of the substrate, ensuring a perfect metallurgical bond. The base current maintains a stable, continuous pilot arc while allowing the weld pool to cool and solidify rapidly. This thermal control preserves the alloy characteristics of the cladding material and yields a refined, fine-grained microstructure that resists cracking and spalling under cyclic mechanical stress.
Global procurement teams in Europe, North America, and Australia have strict requirements for surfacing equipment. Key compliance standards include:
Shanghai Duomu aligns all R&D and manufacturing phases with these strict global metrics. Our electrical layouts and protection features undergo strict validation, enabling plug-and-play integration with complex factory automation loops around the world.
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.
Our company specializes in engineering precision solutions for surface hardening, thermal spraying, and high-performance arc deposition. With customer satisfaction at the core of our business model, we ensure all components, assembly methods, and system software configurations are built to withstand heavy industrial operation. Over the last decade, our team has built strategic relationships across the globe, delivering high-performance machinery that meets demanding international standards.
I have 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.
Through our dedicated research division, we continually optimize the pulse characteristics of our weld controllers, explore new ways to deposit high-density carbide powders without thermal cracking, and integrate advanced multi-axis robotics to automate toolpath generation. We ensure that our buyers receive not just standard products, but complete, turnkey manufacturing solutions engineered for high performance.
Providing high-performance machinery, rapid engineering cycles, and direct manufacturing efficiencies from Shanghai.
Located in Jiading District, Shanghai, our facility is surrounded by a dense ecosystem of precision component suppliers. This proximity streamlines component sourcing—from CNC-machined parts to specialized wire feeders—resulting in shorter production lead times and lower overhead costs.
By keeping core engineering tasks—such as CNC machining of torch tips and assembly of electrical power boards—in-house, we eliminate quality variations common in outsourced models. This integration ensures consistent quality across all components.
We combine localized component sourcing with high-end digital control systems to offer exceptional performance-to-cost ratios. This enables global organizations to modernize their surfacing setups at a fraction of the cost of traditional Western systems.
We can provide customized equipment, automatic laser cladding equipment, automatic plasma cladding equipment, intelligent robot cladding equipment, etc. according to customers' requirements, including special equipment in the industry, such as hydraulic rod cladding machine, pick cladding machine, valve cladding machine, etc.
Technical analyses from our field operations and materials science laboratory on how we resolve wear challenges globally.
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 ...
Read Article →
Introduction Improving PTA hardfacing efficiency is not simply about increasing welding speed or depositing more alloy within a shorter time. In industrial production, the real efficiency of a Plasma Transferred Arc (PTA) hardfacing process dep...
Read Article →
In Oil & Gas, the Real Cost Is Downtime—Not the Component When a choke valve fails due to sand erosion, a mud pump valve seat wears beyond tolerance, or a drill stabilizer reaches the end of its service life, the traditional respon...
Read Article →
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 once wear occurs. Many maintenance tea...
Read Article →
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 d...
Read Article →Bridging Chinese manufacturing capability with seamless local deployment and field assistance.
We coordinate with experienced engineering partners in major target markets (such as the EU, Middle East, and North America) to offer fast, local installation, programming setup, and operator training on site.
No waiting weeks for replacement torch tips, rings, or powder feeders. Shanghai Duomu maintains dedicated regional warehouses and fast courier channels to keep your production runs active with minimal downtime.
From UL-approved electronics to CE-marked safety shields, our customized configurations meet local workplace safety regulations, ensuring smooth audits by occupational safety authorities.
Clear, direct answers to common questions about pulsed PTA, laser cladding systems, and tooling configurations.
Browse our selection of specialized hardware designed to withstand long production cycles under demanding conditions.
For inquires about our products or pricelist, please leave to us and we will be in touch within 24 hours.
Subscribe to Newsletter
