Founded in 1919, DAIHEN is a global leader in power and automation. Its subsidiary, OTC DAIHEN Asia (est. 1989), spearheads the welding and mechatronics industry from Thailand. Known for innovations like Synchromotion and the QCD standard, they deliver world-class, eco-friendly welding solutions globally.

Automation systems boost safety by removing humans from hazardous environments, significantly reducing injury risks. This leads to both a safer and more efficient workplace.

Automation boosts productivity through continuous operation, optimized processes, and reduced downtime. This results in significantly higher output in less time, giving businesses a competitive edge.

Automation's programmability allows for quick production adjustments, minimizing downtime and maximizing responsiveness, crucial for competitive edge.

Automation systems drive improved product quality by eliminating human error and ensuring precision and consistency in manufacturing processes. This leads to fewer defects, improved product performance, and enhanced customer satisfaction.
Improved welding quality and reduced maintenance costs in a manufacturing facility.
New welding technology increases efficiency and lowers production costs.
Streamlining welding processes to achieve consistent results and minimize errors.
On February 21, 2026, OTC DAIHEN Asia hosted a friendly football match between our company team and our valued distributors. The event aimed to foster strong relationships and build a robust collaborative network that extends beyond traditional busin
To reaffirm our commitment to delivering service excellence, we are currently conducting our "Annual Inventory Audit and Data Update." This initiative aims to elevate our stock management system to the highest level of accuracy and reliability.
OTC DAIHEN Asia extends our heartfelt gratitude to all visitors and partners who visited our booth at the Maintenance Forum 2025, held on December 3rd at the Golden City Rayong Hotel.