High-precision systems engineered to meet the demanding requirements of Greek manufacturing, maritime maintenance, and heavy industrial repairs.
Greece sits at the vital crossroads of maritime commerce and Mediterranean infrastructure. The local industrial economy is defined by major maritime activities clustered around Piraeus and Syros, energy generation sectors driven by lignite and renewable networks in Western Macedonia, and extensive mining operations in areas rich in bauxite and mixed sulfides.
In these environments, equipment downtime due to wear, erosion, and severe corrosion translates to significant financial losses. Traditional surface treatment methods like electroplating or conventional thermal spraying are falling short due to environmental regulations and inferior bonding strength. High-precision laser cladding and PTA (Plasma Transferred Arc) welding technologies developed by Shanghai Duomu provide metallurgical bonding with minimal heat input, offering a superior alternative to extend structural component lifespans by up to 300%.
A technological comparative analysis engineered to guide manufacturing procurement directors in selecting the optimal deposition profile.
Utilizes a high-density, focused fiber laser beam to melt metal powder and a thin surface layer of the substrate simultaneously. This creates a dense, pore-free coating with a dilution rate below 2%, preserving the pure mechanical properties of the superalloy cladding powder.
Utilizes a constricted plasma arc to deposit heavy duty wear-resistant alloys. Ideal for high deposition rates (up to 8kg/h or more) on large components like mining buckets, extrusion screws, and valve faces where thick overlays are required to combat impact and abrasion.
By integrating multi-axis robotic gantries and CNC positioners, our systems can switch from laser hardening to PTA weld overlays dynamically. This flexibility is vital for Greek marine workshop job-shops handling variable component shapes and sizes.
Our solutions are engineered to support demanding operating environments across crucial sectors in Greece.
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 business strategy is built on delivering high-quality equipment that helps industrial organizations minimize downtime and lower maintenance costs. We design, manufacture, and integrate key system elements to ensure optimal reliability and performance. Through extensive export activity, we have built a robust presence in key industrial centers across Europe, including Greece.
We specialize in manufacturing bespoke industrial configurations, including hydraulic rod cladding systems, plane gantry workstations, and robotic laser hardening integrations.
We have an independent R&D team that 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.
This capability allows us to program custom logic for complex shapes, such as variable pitch extruder screws, industrial valves, and marine motor shafts.
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 machines, pick cladding machines, valve cladding machines, etc.
Send Inquiry NowFrom portable welding units to massive multi-axis CNC gantry platforms, select the optimal configuration for your facility.
These automated systems are designed for specialized manufacturing environments requiring dedicated cladding profiles.
We supply high-efficiency industrial machinery to international markets. All equipment shipped to Greece complies with relevant European technical and safety standards.
See how industries apply our PTA and Laser cladding technology to optimize service life and performance.
"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 generation, and marine engineering expand, our customized PTA weld deposition systems have successfully minimized internal seal erosion."
"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 downtime. Using automated PTA hardfacing with tungsten carbide overlays has extended the running time of our screw conveyors by more than three times."
"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. Shanghai Duomu's precision parameter controls maintain dilution under 5%, which significantly improves deposit hardness."
"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 operational safety. Our investment in Shanghai Duomu's gantry laser cladding system has significantly cut down our overall capital expenditure."
"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. The automated ball valve welding equipment DQF-LC602 provides repeatable deposits with high accuracy."
"The ability to handle multi-vector movements using robotic gantries allows us to execute precise laser cladding overlays on irregular shapes. The support from Duomu during programming and alloy selection was crucial for our repair line."
Our engineering roadmap focuses on precision control and high-performance material compatibility.
Utilizing high-speed infrared pyrometers to monitor the melt pool temperature in real time, automatically adjusting the laser power to ensure uniform hardness profile and structural integrity.
Custom software that imports CAD profiles of worn components (e.g. turbine rotors, propeller shaft sleeves) and automatically generates optimal overlapping toolpaths to minimize heat buildup.
Designing laser cladding systems optimized for depositing high-entropy alloys (HEA) and ceramic-metal matrix composites (e.g., Nickel-based alloys mixed with Spherical Tungsten Carbide).
Detailed technical answers to key questions from manufacturing directors and project leads in the Greek market.
Laser cladding achieves a dilution rate below 2%, meaning the alloy properties of the clad layer remain clean and uncontaminated by the base metal. Plasma Transferred Arc (PTA) welding typically has a dilution rate between 5% and 10%. While slightly higher, PTA provides a thicker deposit layer, making it ideal for high-wear environments like mining excavator components.
Yes. We design and integrate multi-axis CNC gantry and robotic manipulator platforms engineered to clad large components like marine propeller shafts, hydraulic cylinders, and engine valve spindles. These setups can handle large parts and execute precise cylindrical deposition.
Laser cladding utilizes a highly concentrated fiber laser source, which minimizes the Heat Affected Zone (HAZ) in the substrate. The localized heat input prevents structural warping, making it ideal for thin-walled sections or precise shafts where maintaining strict tolerances is essential.
Our systems support a wide variety of powders, including Cobalt-based alloys (Stellite series), Nickel-based alloys, Iron-based alloys, and metal matrix composites containing Tungsten Carbide (WC). These alloys provide excellent resistance against abrasive wear, corrosion, and high-temperature oxidation.
We provide initial support via video link, secure diagnostic data transfer, and remote PLC program updates. For system installation, calibration, and training, we can dispatch engineers directly to your site in Greece to ensure a smooth integration into your production workflow.
Duomu
