Industrial Work
Metal Forming
Mechanical Work
Civil Engineering
Power & Energy
Petroleum and Gas

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General Engineering & Heavy Fabrication

In General Engineering & Heavy Fabrication, operations bridge large-scale structural metalworking with custom mechanical engineering. Precision contract manufacturers and heavy engineering firms like Hi Tech support capital infrastructure, process industries, and plant engineering through heavy structural fabrication, custom vessel manufacturing, and large-scale precision machining:

Pressure Vessels & Columns: Welding and testing of coded pressure vessels, filtration tanks, and processing columns engineered for high internal pressures and thermal cycles.
Industrial Storage Tanks & Silos: Fabrication of carbon steel and stainless steel atmospheric storage tanks, bulk chemical vessels, and dry bulk storage silos equipped with specialized cone hoppers.

Industrial Ducting & Chimney Stacks: Heavy-gauge welded ductwork, exhaust hoods, cyclone separators, and flare stacks engineered to handle high velocity gas and abrasive particulates.

Large Diameter Turning: Turning, facing, and threading oversize shafts, heavy-wall industrial drums, trunnions, and large-diameter ring flanges.
Bridging heavy weldments with high-precision dimensional tolerances using oversized machinery:

Advanced Welding, Cladding & Surface Treatments

  • Certified Welding Standards: Full-penetration structural and pressure welding using processes like FCAW, GMAW, GTAW, and Submerged Arc Welding (SAW), conforming to AWS and ASME standards.

  • Weld Overlay & Wear Cladding: Depositing hard-facing materials (such as Chromium Carbide or Stellite) onto structural surfaces exposed to heavy abrasive slurries, rock crushers, or acid exposure.

  • Surface Preparation & Protective Coating: Industrial shot blasting, grit blasting, high-performance epoxy painting, and hot-dip galvanizing to protect heavy steel structures against marine or atmospheric corrosion.

Turnkey Mechanical Assembly & Testing

  • Shop Pre-Assembly & Fit-Up: Mock assembly of multi-segment steel structures, conveyor lines, and heavy ducting in the factory to ensure 100% alignment before site installation.

  • Mechanical Integration: Installation of bearings, drive shafts, hydraulic cylinders, actuators, and mechanical drive trains onto fabricated frames.

  • Non-Destructive Testing (NDT): Structural integrity verification using Ultrasonic Testing (UT), Radiographic Testing (RT), Magnetic Particle Inspection (MPI), and Dye Penetrant Testing (DPT) to guarantee defect-free welds.

Primary Applications & Sectors

  • Steel & Cement Plants (Raw material hoppers, kiln shells, cooler plates, heavy conveyor frames)

  • Power & Renewable Energy (Turbine foundations, ducting, boiler structures, penstocks)

  • Mining & Material Handling (Excavator booms, bucket wheel structures, crushing plants, vibrating screens)

  • Infrastructure & Maritime (Bridge girders, heavy piling structures, barge equipment, crane booms)