Precision-Engineered Prefabricated Ducts with Advanced Manufacturing Capabilities
At LSI – Mech Engineers Private Limited, we offer high-quality prefabricated ducts manufactured in our expansive 160,000 square feet facility, equipped with specialized sections for bellows forming, components fabrication, assembly, inspection, and testing. Our state-of-the-art infrastructure ensures the delivery of precision-engineered ducting solutions for a variety of industrial and critical applications.

Specialized Manufacturing Facilities
We also utilize general-purpose machinery for component fabrication and duct assembly, including:
• CNC profile cutting systems
• GTAW & MIG welding systems
• Hydraulic pipe rolling machines
• Custom instruments and gauges for inspection and testing
This combination of advanced technology and skilled craftsmanship enables us to manufacture durable and dimensionally accurate prefabricated ducts, tailored to meet specific client requirements.
Experienced Engineering and Skilled Workforce
Our team of experienced engineers and technologists, with over 25 years of field expertise, is proficient in handling complex and critical applications. We have hundreds of qualified welding procedures in compliance with ASME and EN Standards, backed by highly skilled welders specializing in critical and pressure part welding.

ACC Bellows & Steam Duct with Hot Well Package was successfully installed at a Biomass power plant in Korea for an EPC power project.
Comprehensive In-House Inspection and Testing Capabilities
We ensure every prefabricated duct undergoes rigorous 100% quality inspection before dispatch. Our Quality Control team includes:
• Level II NDE qualified engineers
• Level III associates
• API-certified inspectors
Our in-house testing and inspection services include:
• Radiography for butt weld joints
• Dye penetrant examination for all fillet weld joints
• Pneumatic, vacuum, and helium leak tests
• Hydrostatic pressure testing
• Dimensional and visual inspections
• Positive Material Identification (PMI)
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Commitment to quality and workmanship
At LSI-Mech Engineers, we prioritize delivering prefabricated ducts with the highest standards of quality, finish, and reliability. Our stringent inspection protocols and precision manufacturing processes ensure that every product meets global industrial standards and client specifications.


