Laser Cladding Restoration for Large Closed Impellers

Operating Challenges and Wear Problems in Closed Impellers

Closed impellers operate under high pressure and high flow velocity, frequently subjected to severe mechanical wear and cavitation—especially along the outer rim and discharge areas…

Closed impellers operate under high pressure and high flow velocity, frequently subjected to severe mechanical wear and cavitation—especially along the outer rim and discharge areas. Replacing these components is costly and requires extended machine downtime.

Laser Cladding – The Optimal and Most Advanced Restoration Technology

Laser cladding offers a high-precision and highly efficient method for restoring worn closed impellers:

• High-energy concentration heats only the surface layer without affecting the base material.
• CNC-controlled processing ensures uniform coating thickness and excellent accuracy.
• Specialized alloy powders provide superior wear resistance, corrosion resistance, and impact strength.

This process restores the impeller to its original geometry while significantly increasing durability and service life compared to traditional welding methods.

A uniform layer of wear-resistant alloy is applied to the outer rim of the impeller, ensuring strong adhesion, stable operation, and high performance after restoration.

Advantages of Restoring Closed Impellers Using Laser Cladding

• Extended Service Life: The alloy coating provides excellent wear resistance, maintaining long-term operational efficiency.
• Cost Savings: Reduces replacement costs and shortens equipment downtime.
• High Precision: Automated CNC control ensures dimensional stability and consistent coating quality.
• Preservation of Original Structure: Low heat input prevents distortion and maintains the integrity of the impeller.
• Reliable, Stable Quality: The process is strictly controlled under ISO 9001:2015 standards, suitable for demanding industrial environments.

As one of the pioneers in applying laser cladding technology in Vietnam, Phuong Dong is a trusted partner in restoring and extending the lifespan of industrial equipment—helping businesses reduce maintenance costs, minimize downtime, and maximize operational efficiency.

PHUONG DONG INDUSTRIAL  AND TRADING CO., LTD
Address: Alley 70, Dan Di, Uy No, Dong Anh, Hanoi
Phone/Zalo/Whatsapp: +84 987 822 360