
In power transmission systems, the coupling is a critical component that connects two shafts and transmits torque. After long periods of operation, the inner surface of the coupling bore often becomes worn, causing vibration and reduced efficiency.
At PHUONG DONG, we apply Laser Cladding technology to restore the inner bore of couplings with high precision, effectively rebuilding the original dimensions of the part.
Key Features of PHUONG DONG’s Technology
- High-precision cladding inside deep or small-diameter bores.
- Automatic laser on/off control at keyway positions, preventing unwanted cladding and maintaining the correct fit profile.
- Strong metallurgical bonding with excellent hardness, suitable for heavy-load applications.
- Significant reduction in repair time and cost compared to part replacement.

Benefits
- Extends equipment lifespan.
- Maintains dimensional accuracy and assembly fit.
- Improves reliability and operating efficiency of the transmission system.
Laser Cladding is the optimal solution for internal bore repair, offering outstanding performance for components such as couplings, shafts, and bushings.
PHUONG DONG INDUSTRIAL AND TRADING CO., LTD
Address: Alley 70, Dan Di, Uy No, Dong Anh, Hanoi
Phone/Zalo/Whatsapp: +84 987 822 360
Laser Cladding Phương Đông