Precision engineered tooling, torches, and high-duty machinery designed to deliver lowest dilution rates and zero porosity across complex geometric substrates.
Deep inner bore hardfacing solution engineered for heavy hydraulic and pump cylinder lining.
Ultra-stable low amperage plasma system for fine electronics and thin-walled tool repairs.
High integration cabinet combining power supply, gas mixers, and continuous powder feeding controllers.
Dedicated multi-axis CNC system for wear-resistant cladding of screw conveyors and feed augers.
Medium-duty high efficiency plasma torch ideal for automated and manual hardfacing.
Cost-effective industrial torch optimized for continuous powder deposition over flat surfaces.
Essential gas shielding accessories for complete protection against oxidation during high heat cycles.
Turnkey multi-axis robotic laser cladding system featuring closed-loop optical process monitoring.
Over the last decade, heavy industry has shifted away from traditional thermal spraying and manual arc surfacing toward high-speed, automated cladding technologies. Laserauftragsschweißen (often referred to as Laser Cladding or Laser Metal Deposition - LMD) has emerged as the premier technology for surface refinement, reclamation, and protective coating.
Unlike conventional welding techniques that introduce excessive heat inputs, laser cladding limits the thermal exposure to a microscopic melt pool on the substrate. This achieves a metallurgical bond with minimum dilution (typically below 3% to 5%) and an exceptionally small heat-affected zone (HAZ).
Sourcing laser cladding and PTA equipment from China is no longer just about lowering initial investment costs. The modern Chinese ecosystem, anchored by manufacturing clusters such as Shanghai, offers unparalleled structural, supply chain, and research advantages.
From high-power fiber laser sources and customized gas feed valves to advanced planetary powder feed hoppers—every critical component is engineered and manufactured within close physical proximity. This reduces sourcing delays, lowers freight margins, and ensures comprehensive quality verification.
Unlike European or North American counterparts with rigid assembly schedules, Shanghai Duomu accommodates project-specific modification requests, such as deep-bore extension lances, localized gas shields, and customized robot kinematic integrations in weeks rather than months.
Equipped with state-of-the-art testing stations, Chinese factories can scale production rapidly to fulfill large orders for multi-axis CNC laser cladding tables and standalone PTA systems without compromising build quality or calibration accuracy.
Shanghai Duomu has been a leading manufacturer and exporter of PTA cladding machines and Laser cladding machines for more than ten years with a strong technical background. Our dedicated R&D division develops, produces, and sells high-performance plasma cladding machine equipment globally.
The welding and cladding machines engineered by Duomu exhibit exceptionally stable electrical performance and maintain high-efficiency output during long-term continuous cycles. In addition, our high-power laser cladding equipment supports large-scale industrial remanufacturing projects. We offer mature technological expertise to deliver comprehensive, turnkey industrial equipment solutions.
We provide customized systems, automatic laser cladding equipment, automatic plasma cladding equipment, and intelligent robot cladding systems according to customer requirements, including highly specialized industry-specific configurations like hydraulic rod cladding machines, mining pick cladding systems, and automated valve cladding stations.
Our cladding systems are actively utilized across key industrial sectors, protecting base metals from corrosion, severe thermal stress, and high-impact wear.
Enabling hardfacing on tines, disc harrows, and sugar cane knives, extending operational lifespan in high-abrasion soils.
Preserving turbine blade tips, compressor rotors, and structural components using superalloy powder matrices.
Applying corrosion-resistant alloys onto drill pipes, stabilizer bands, and offshore extraction valves.
Rebuilding heavy rolls, guides, and molds exposed to thermal fatigue and molten metal contact.
When procurement managers buy surface engineering machinery from Chinese suppliers, they must review key metallurgical metrics to ensure alignment with international standards (e.g., ISO 15614-7, ASME Section IX).
Higher dilution rates introduce iron from the substrate into the cladding layer, reducing corrosion resistance. Sourcing managers must verify that the system guarantees a dilution rate of <5% in a single layer using appropriate powder delivery speeds and thermal profiling.
Fluctuations in powder feed lead to variable bead heights and un-melted powder particles. Our advanced dual-hopper pressurized powder feeders maintain feed rate variations within ±1%, ensuring consistent cladding layers and reducing post-process grinding time.
As industry demand shifts toward extreme efficiency, the laserauftragsschweißen sector is experiencing rapid technological evolution:
High-speed laser cladding melts the powder particles before they contact the base substrate, increasing process speeds from 2 m/min to over 100 m/min. This reduces the heat input, enabling thin coatings (20–250 μm) on thin-walled components.
Integrating infrared cameras and melt-pool pyrometers with CNC controllers allows for real-time laser power modulation, maintaining constant melt pool temperatures to prevent micro-cracks in sensitive materials like Stellite 6 or Tungsten Carbide matrices.
With international environmental standards phasing out hexavalent hard-chrome plating due to toxicity, laser cladding has become the standard replacement. It offers superior bonding strength and corrosion resistance without generating toxic liquid waste.
Explore our range of heavy-duty plasma cladding systems, intelligent CNC controllers, and robotic laser hardening machinery.
Micro-deposition unit for precise repair of complex injection molds and press tools.
High-speed external cladding lathe system designed for coal mining and marine hydraulics.
Ultra-high power PTA torch engineered for thick, single-pass alloy overlays.
Dedicated indexing system for high-volume wear protection of road rehabilitation picks.
Heavy gantry-based system optimized for reinforcing scraper conveyor components in mining.
Industrial-grade digital control PTA power source built for continuous workshop operation.
Precision CNC table system designed for automated multi-pass flat cladding of wear plates.
Versatile gantry enclosure system optimized for variable production jobs and custom geometries.
Explore detailed insights and customer application updates covering PTA hardfacing, valve protection, and component lifetime extensions.
"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..."
VALVE REBUILDING INSIGHTS
"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 they are a frequent cause of unplanned production downtime..."
SCREW CONVEYOR PROTECTION
"In Plasma Transferred Arc (PTA) hardfacing, achieving a high-quality overlay is not only about selecting the right alloy powder or optimizing parameters. One of the most critical factors that directly affects overlay performance is the dilution rate..."
PROCESS PARAMETERS & DILUTION
"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 structural integrity..."
LIFESPAN EXTENSION DYNAMICS
"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, and abrasive wear..."
VALVE FAILURE PROTECTIONFind expert answers to common metallurgical and equipment configuration questions about laser cladding and PTA hardfacing.
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