In the modern industrial landscape, the shaft is the literal backbone of mechanical movement. Whether in a high-torque mining excavator, a precision aerospace turbine, or a deep-sea petroleum pump, shafts are subjected to extreme wear, corrosion, and fatigue. Traditionally, worn shafts were scrapped or repaired using conventional welding—methods that often resulted in high dilution rates, significant heat-affected zones (HAZ), and structural distortion.
Today, as a leading Custom Shaft Cladding Manufacturer, Shanghai Duomu is spearheading a paradigm shift. Shaft cladding (or hardfacing) is no longer just a maintenance tool; it is a critical "Additive Manufacturing" process. By utilizing Plasma Transferred Arc (PTA) and Laser Cladding technologies, we can fuse high-performance alloy powders onto carbon steel or low-alloy shaft surfaces, creating a metallurgical bond that far exceeds the performance of the base material.
The global industrial sector is moving toward a "Circular Economy." Procurement managers in Europe and North America are increasingly prioritizing Remanufacturing (Reman) over new replacement. Shaft cladding reduces material waste by 90% and energy consumption by 70% compared to manufacturing a new component. This isn't just cost-saving; it's a core ESG (Environmental, Social, and Governance) strategy.
Shanghai Duomu's cladding solutions have penetrated the most demanding sectors. In Petrochemicals, our cladding protects pump shafts from corrosive acids. In Mining, we provide wear-resistant layers for hydraulic cylinder rods that endure abrasive grit. Our "Industry 4.0" approach ensures each application is backed by data-driven parameter selection to optimize the dilution rate—the key metric for overlay quality.
As a global supplier, we understand that Lead Time is as critical as Quality. Shanghai Duomu has integrated "Factory 4.0" principles into our production lines. By using independent R&D teams and in-house manufacturing of plasma cladding equipment, we eliminate middle-man delays.
Best for thick overlays (2mm - 8mm) where high deposition rates are required. Ideal for large mining shafts and heavy industrial rollers. PTA offers a superior metallurgical bond with lower dilution than traditional arc welding.
The pinnacle of precision. With a focused heat source, laser cladding results in an ultra-small Heat Affected Zone (HAZ), making it perfect for precision aerospace shafts and components where structural integrity and minimal distortion are paramount.
Our 6-axis robot cladding systems allow for complex geometries, ensuring that even non-cylindrical shafts receive a uniform, high-quality protective layer with 100% repeatability.
Years Experience
Global Clients
Material Savings
Response Time
Our PTA processes typically achieve dilution rates as low as 5-10%, while our Laser Cladding can achieve less than 3%. This ensures the surface alloy maintains its intended hardness and corrosion-resistant properties without excessive mixing with the base metal.
Yes. Our equipment ranges from handheld portable laser cladding units for on-site repairs to massive double-column gantry systems for shafts up to several meters in length.
While the initial cost of cladding might be higher than simple welding, the extended service life (often 3-5x longer) and reduced downtime significantly lower the TCO over the component's life cycle.
We work with a wide range of materials, including Cobalt-based (Stellite), Nickel-based, Iron-based alloys, and Tungsten Carbide (WC) composites for extreme abrasion resistance.
"In Oil & Gas, the Real Cost Is Downtime—Not the Component. When a choke valve fails due to sand erosion... traditional responses are no longer enough."
"Improving PTA hardfacing efficiency is not simply about increasing welding speed. It's about optimizing dilution and metallurgical bonding."
"For industries such as mining and power generation, screw conveyors are frequent causes of unplanned production delays. Cladding offers a solution."
Unit 2, No.615 Feng Deng Road, Jiading District, Shanghai, China
Email: [email protected]
Phone/WhatsApp: +86 15021996700
