about us
Five decades of manufacturing excellence in high-frequency dielectric and induction heating equipment. SigmaWeld delivers cutting-edge digital inverters, automation, and mission-critical welding systems powering India’s space, defense, and industrial sectors.
50+
YEARS OF EXPERIENCE
Our Legacy and Evolution
“We Engineer Smarter Welding Solutions That Improve Quality, Increase Productivity, and Reduce Costs.”
Founded in 1974, Electronics Devices Worldwide Pvt. Ltd. has led innovation in high-frequency heating and advanced power electronics. Building on this legacy, SigmaWeld was launched in 2007 to deliver digital welding inverters and automation solutions for critical Aerospace, Defense, and Automotive applications.
- Founded 1974: Electronics Devices began with dielectric and induction heating.
- R&D Strength: DSIR-approved lab advancing industrial self-reliance.
- SigmaWeld (2007): Launched for digital welding inverters and automation.
- Expertise: 50 years of power electronics driving precision welding.
50 Years Strong
A Golden Jubilee of Innovation and Excellence
awards & achievements
Celebrating our commitment to innovation, quality, and national contribution
National Technology Award
Recognized for industrial leadership and breakthrough advancements in welding electronics.
DSIR Approved R&D Lab
Official recognition from the Department of Scientific and Industrial Research for world-class research capabilities
4 Recent Patents
Demonstrating continuous innovation and protection of cutting-edge welding and heating technologies
Industrial Excellence
Awarded for consistent high-quality manufacturing and transformative impact across industrial sectors
SigmaWeld’s Contributions to the Nation
Nuclear Projects
Supplied nuclear end-shield welding automation systems for NPCIL and successfully executed remote repair of BSC systems for PFBR, demonstrating field-proven reliability in critical applications.
Automotive Sector
Empowered major automotive manufacturers with advanced welding inverters and automation solutions, enhancing production efficiency and quality standards across vehicle manufacturing.
MSME Support
Deployed 10,000+ equipment units across 1000+ MSMEs nationwide, helping small and medium enterprises scale operations with world-class welding technology and technical support.
Chandrayaan Missions
Played a critical role in India’s lunar exploration missions with precision welding solutions for solid fuel booster systems, ensuring mission-critical reliability for Chandrayaan 1 & 2 spacecraft.
Gaganyaan Program
Contributed advanced heat treatment procedures for semi-cryogenic engine components in India’s human spaceflight program, delivering the precision and repeatability required for astronaut safety.
Defense Infrastructure
Manufactured and delivered over 100 kilometers of aluminum foot-over-bridges for strategic defense installations nationwide, providing robust and durable infrastructure solutions.
Our Clients
