Bellow Manufacturing Facility
- The ability to design and manufacture Circular Expansion Joints of sizes up to 9000 mm in Diameter.
- Rectangular Expansion Joints of any transportable size can be designed, manufactured and supplied by our team
- The capacity to design and manufacture expansion joints that can withstand Pressures as high as 200 bar (g) from Full Vacuum.
- The capability to produce expansion joints that can withstand a Temperature as high as 1450 Deg°C We also design for cryogenic applications.

Forming & Plate rolling

Long seam Welding(semi automation)
Materials of Construction
- Metal Bellows in all grades of Austenitic Stainless Steel, Duplex Stainless Steel, High Nickel Alloys etc.,
- Rest of Components in Carbon Steel, Alloy Steel, Stainless Steel, High Nickel Alloys and any of these combinations etc.

PMI
Bellow Manufacturing Facility
- Mandrel / punch forming
- Roll forming
- Hydro forming;
- Elastomer forming
- Process-welding
Welding Facility
- Long seam – GTAW/ MICROPLASMA / MICROTIG
- End connection attachment welding-GTAW
- Other dissimilar welding-GTAW
- CS-CS welding – MIG / MMAW/ SAW

Tube Sheets Marking
![Manufacturing]](https://dev-lonestarindia.pantheonsite.io/wp-content/uploads/2025/11/Manufacturing-1024x652.png)
Turn Table For Welding
Testing Facility-Non-Destructive Examination
- Radiographic Test
- Liquid Penetrant
- Ultrasonic Test
- Magnetic Particle Test
- Pneumatic Leak Test
- Vacuum Leak Test
- Helium Leak Test
- Hydro Static Pressure Test

NDE[Non-Destructive Examination]
📍Location Chemmanchery
Hydrostatic Pressure Test
LSI-Mech Engineers Pvt. Ltd. has standard Hydro test facility for testing sizes up-to 2000 mm. For High pressure and larger sizes Hydro testing is performed using individual test jig. All the Bellows supplied are subjected to leak and stability test. Also, LSI-Mech Engineers Pvt. Ltd. has the capabilities to perform all Non- Destructive Examination as per 7.1, Non-Destructive Testing as per 7.2 and Destructive testing as per 7.3 of EJMA. This facility is also used for Research and Development.

Hydrostatic Pressure Test
📍Location Cheyyar
Prototype Destructive Testing-Bellows
- Fatigue Life Cycle
- Squirm Test
- Meridional Yield
- Rupture Test
Other Facilities
We specialize in sheet metal fabrication across a wide range of thicknesses, from below 3mm to heavy-duty applications. Our capabilities include custom design and supply of accessories, with expertise in manufacturing Strainers, Rectangular Bellows, and other metal components(Special Fabrications) to meet diverse project needs Read More

Destructive testing
📍Location Chemmanchery
