Explore our flagship automated PTA and laser surfacing solutions tailored for extreme wear, high corrosion, and thermal erosion environments.
In modern heavy manufacturing, component failure due to wear, fretting, oxidation, and chemical corrosion costs global industries hundreds of billions of dollars annually. Leading global custom equipment cladding companies and manufacturers have transitioned from conventional component replacement to state-of-the-art additive surface modification.
Unplanned production stoppages in petrochemical refineries or offshore drilling platforms incur astronomical financial losses. Advanced cladding technology restores worn components to original or superior specifications, extending operating cycles by 300% to 500%.
By applying high-performance alloys (Cobalt-based Stellite, Nickel-based Inconel, or Tungsten Carbide composites) only to the wear surface, OEMs reduce the consumption of expensive strategic metals while utilizing structural carbon steel for the main substrate body.
Industry 4.0 integration has shifted cladding from manual torch applications to automated, CNC, and robot-assisted precision deposition with real-time closed-loop temperature control and laser monitoring.
Selecting the right thermal deposition technology requires evaluating metallurgical bonding strength, Heat-Affected Zone (HAZ), production velocity, and substrate distortion metrics.
| Process Metric | Plasma Transferred Arc (PTA) Cladding | High-Power Laser Cladding | Conventional Arc Surfacing (TIG/MIG) |
|---|---|---|---|
| Heat Input & Distortion | Moderate heat input; minimal component distortion | Ultra-low heat input; negligible thermal distortion | High heat input; significant risk of structural distortion |
| Dilution Rate | Low (5% – 10%) | Ultra-low (1% – 5%) | High (15% – 30%) |
| Metallurgical Bond Strength | Extremely High (> 400 MPa fusion bond) | Extremely High (> 450 MPa fusion bond) | High (Risk of micro-cracks & porosity) |
| Deposition Rate / Efficiency | High (2.0 – 8.0 kg/h powder deposition) | Precision controlled (1.0 – 5.0 kg/h) | Medium (1.5 – 3.5 kg/h wire feed) |
| Material Compatibility | Stellite, Colmonoy, Hastelloy, WC powders | Fe-based, Ni-based, Co-based, Titanium alloys | Standard solid welding wires & fluxes |
| Bore / Complex Geometry Capability | Excellent for deep internal bores (via specialized torches) | Requires specialized optical heads & 6-axis arms | Limited to accessible outer geometries |
PTA surfacing utilizes a high-energy plasma arc focused through a constrained copper nozzle. Argon gas acts as the arc gas, shield gas, and powder carrier. The concentrated arc melts the surface of the base material simultaneously with the alloy powder feed, producing a dense microstructural overlay resistant to severe abrasion and chemical attack.
Laser cladding employs a high-power diode or fiber laser beam to generate a localized molten pool. The precise power density minimizes the thermal effect on adjacent base metals, virtually eliminating micro-cracking and post-weld machining costs. Highly recommended for high-precision components like hydraulic rods and turbine blades.
Our equipment cladding machines are actively serving mission-critical engineering sectors globally, enhancing operational reliability in hostile working environments.
Industrial valves operating under high pressure, corrosive media, and extreme temperatures require hardfacing on sealing faces and seats. Specialized machines like our Ball Valve Automated Welding Equipment DQF-LC602 apply Cobalt-based alloy coatings that eliminate fluid bypass and extend valve lifecycle by up to 400%.
Cutting picks, shearer drums, and excavating teeth suffer aggressive impact wear and quartz abrasion. Utilizing the DJC-LC305 Automatic Cutting Picks Plasma Cladding Equipment deposits tungsten-carbide reinforced matrix overlays, drastically decreasing machine teeth changeout frequency in underground mining.
Long hydraulic cylinder rods used in offshore platforms and heavy construction suffer from saltwater corrosion and friction wear. Laser cladding systems like the DYY-LC501 Hydraulic Rod Automatic Laser Cladding System generate flawless, ultra-thin stainless steel/Inconel protective layers with zero distortion.
Boiler tube walls, diaphragm plates, and turbine blades are constantly exposed to thermal fatigue and erosion. Specialized units like the DMMP-01 Numerical Control Welding Machine for Heat Exchanger Diaphragm ensure continuous automated high-density cladding with perfect metallurgical continuity.
Screw conveyors handling cement, fly ash, or biomass suffer severe edge abrasion. The DLG-LC501 Screw Automatic Welding Equipment automates multi-axis flight edge hardfacing, standardizing deposit thickness and preventing unscheduled plant downtime.
Demanding safety standards mandate defect-free atomic structures in high-stress components. Automated multi-axis gantry cladding machines guarantee zero-porosity welds and total repeatability for structural alloys and heat-resistant turbine parts.
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.
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. We bridge advanced material science with industrial automation to deliver custom equipment engineered for extreme reliability.
Learn More About Our Capabilities
We 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, including internal bore torches, multi-axis gantry frames, and robotic cell integrations.
Get In Touch With Engineering TeamPartnering directly with a premier Chinese manufacturer grants international customers distinct technological, operational, and capital expenditure advantages.
Unlike third-party integrators, Shanghai Duomu controls every phase—from CNC mechanical machining and electrical PLC cabinet assembly to plasma torch precision manufacturing and software algorithm development. This guarantees strict quality management and seamless component compatibility.
Leveraging China's mature industrial ecosystem enables us to deliver heavy-duty gantry laser cladding systems and automated PTA stations at 30% to 50% lower capital expenditure than European or American counterparts, backed by tier-1 global components (e.g., IPG laser sources, Siemens PLCs).
Our in-house R&D team rapidly modifies mechanical structures, stroke lengths, internal bore torch lengths, and robotic arms to suit custom workpieces. Accelerated production schedules ensure fast equipment dispatch and commissioning.
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.
Read technical insights from our metallurgy team regarding wear control, dilution optimization, and valve hardfacing solutions.
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 expand...
Read Full GuideIn 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 downtime...
Read Full GuideIn 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. Controlling dilution guarantees microstructural purity...
Read Full GuideIn 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 operating ROI...
Read Full GuideIn 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, sand erosion, and severe adhesive wear...
Read Full GuideEnsuring global interoperability, international safety certification, and end-to-end commissioning support across worldwide manufacturing hubs.
All Shanghai Duomu cladding systems comply with strict European CE safety standards, ISO9001 quality management benchmarks, and electrical safety norms. Built to integrate smoothly into ISO and ASME-certified production lines.
Our senior field engineers provide global on-site installation, trajectory programming, shielding gas optimization, and operator training, ensuring your engineering team achieves target deposit density immediately.
Equipped with IoT remote diagnostic modules, our technical center provides immediate online troubleshooting, parameter tuning, and fast dispatch of consumables such as PTA copper nozzles, powder feeders, and torch lines.
For inquiries about our products or pricelist, please leave your contact details to us and we will be in touch within 24 hours.
In-depth technical answers addressing common procurement and engineering questions regarding custom cladding machines.
Explore additional plasma surfacing torches, specialized gantry machines, and automated multi-axis platforms.
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