Generators, Turbines & Power Plants

We offer a complete product range of Gas Turbine Components Manufacturing, for CMN (France) and Wind Turbine Parts for Wind World India Ltd

Exhaust casing of Gas turbines

Material: SA 516 Gr 70, D2M1A2 Casting

Size: 2.5 meter diameter x 2 meter

Weight : 7.5 tons

Critical requirement :

Construction in two halves 100% UT welded joints

Challenges :

Concentricity of cone in fabrication within 4 mm

Distortion control during welding of top and bottom flanges with cone due to thickness variation

Development of fixtures for distortion control done in-house

Deep Hole Drilling through struts and shells

Automation in welding for consistency

A set has 3 components of Carbon Steel of about 4m diameter weight 7.3 tons

Fabrication of a combination of Prismatic and cylindrical sections to accuracies of +/- 1mm over 4m length

As these structures are prone to heavy distortion during welding, special fixtures are developed to control distortion

Extensive use of automatic welding processes FCAW and SAW

SPM for drilling holes on disc rotor, with multi spindle drilling

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Godrej Mumbai Harbour, Mumbai, Maharashtra