Special Fabrications

Over the years of handling thin-walled fabrications such as bellows-type metal expansion joints,tuyere stocks, crossover piping assemblies, etc., we have gained in-depth knowledge and experience in metalworking.

Key features of LSI-MECH Special Fabrication Services

  • Our facilities, spanning over an area of 160,000 sq. ft., are equipped with CNC(Computer Numerical Control)and manual cutting systems.
  • semi-automatic and manual welding systems, pipe rolling machines, EOT(Electric Overhead Traveling crane) and mobile cranes, and all necessary instruments and gauges for inspection and testing.
  • we possess abundant resources knowledge,experience, skill, facilities,including associations with leading universities.
  • we are in a better position to offer any specialized/value-added fabrications.

Design Specifications

  • Shop Fabricated Modular Piping,
  • Large Pipe Segments
  • Ducting
  • Pressure Vessels
  • Special Components with or without machining.


Material of Construction

We are highly competent in supplying equipment and systems manufactured using a wide range of material grades, including plates, pipes, fittings, and forgings in:

  • Structural and Pressure Vessel Grade Carbon Steels
  • Cr-Mo Steels
  • Austenitic and Duplex Stainless Steels
  • High Nickel Alloys


Our capabilities include handling metal sections from 0.15 mm up to 200 mm thickness, and managing heavy assemblies weighing up to 60 tons.

We have also qualified over 300 welding procedures across various combinations.

Additional Accessories Depending on Customer Requirements

  • Fabrication and assembly of large shells, heavy metal components, flanges, pipe fittings, etc.
  • Mastery of different welding techniques and processes GTAW, MIG, MAG, FCAW, SAW, MMAW, etc.
  • Experience in welding a combination of thin to thick sections, dissimilar metallurgy, different orientations, and overlay.
  • Highly skilled welders with the knowledge to perform welding with consistent quality and workmanship.
  • Expertise in handling refractory and refractory applications
Scroll to Top