Transformer Tanks And Transformer Parts

Transformer Tanks & Transformer Parts

Jyotiling Industry Pvt. Ltd. manufactures high-quality mild steel transformer tanks and associated plates for distribution and power transformers. Our tanks are engineered for structural integrity, oil tightness, vacuum withstand capability, and long-term corrosion resistance, fabricated to customer drawings and international/Indian standards.

We supply complete tanks (plain, corrugated, or radiator-type) as well as cut-to-size plates and corrugated fin-wall panels.

Materials :

• Primary material: Hot-rolled mild steel plates conforming to IS 2062 (latest edition) – Grades E250 / E350 (A / BR / B0 / C quality as required), low-carbon, fully killed or semi-killed for excellent weldability.
• Optional: Stainless steel (for corrosive/coastal environments) or special grades on request.
• Plates are ultrasonically tested (where specified) to eliminate internal defects.
• Thickness range typically handled: 3 mm to 25 mm (higher thicknesses available for large power transformer tanks).
Types of Tanks We Manufacture
• Conventional plain rectangular / octagonal tanks
• Corrugated wall tanks (fin-wall type) – integrated cooling without external radiators
• Tanks with detachable radiators / cooling tubes
• Conservator tanks, under-base channels, and complete tank assemblies
• Custom designs including bell-type, shaped tanks for transport constraints, and tanks with magnetic shielding provisions

Key Design & Technical Features :

• Designed to withstand full vacuum (typically 760 mm Hg) and positive pressure without permanent deformation
• Adequate stiffeners / reinforcement ribs or corrugations to control deflection under vacuum and oil pressure
• Lifting lugs, jacking pads, and skid bases designed for safe handling of oil-filled transformers
• Inspection covers / manholes with bolted flanges and oil-resistant gaskets
• Provisions for bushings, conservator, PRV, valves, oil level indicators, and grounding
• Interior surfaces prepared for oil-resistant coating; exterior for multi-coat corrosion protection
• Tolerance on dimensions as per IS 1852 / customer specification

Manufacturing Process :

1) Plate Preparation & Cutting
CNC plasma / laser / oxy-fuel cutting of plates as per approved drawings. Edge preparation (beveling) for welding.
2) Forming
Press-brake bending for side panels and flanges. Plate rolling for curved sections. Specialized forming for corrugated fin walls (fin height, pitch, and depth as per design).
3) Assembly & Welding
Precision fixturing and assembly. Welding by qualified welders using MIG / MAG / CO₂ / Submerged Arc Welding processes. Continuous welds with minimum distortion. Critical seams inspected by NDT.
4) Finishing & Cleaning
Grinding of weld beads, removal of slag and spatter. Shot blasting / sand blasting to Sa 2.5 surface finish for coating adhesion.
5) Testing
•  Dimensional inspection
•  Leak test (air pressure / soap solution or hydrostatic)
•  Vacuum test
•  NDT (Visual, Dye Penetrant, Magnetic Particle, Ultrasonic as required)
•  Pressure withstand test as per specification
6) Surface Protection
Interior: Oil-resistant epoxy / varnish.
Exterior: Shot-blasted + epoxy primer + polyurethane / acrylic top coat (DFT as per customer or IS/IEC requirements). Colour coding as specified.

Quality Assurance :

• Material Test Certificates (MTC) for all plates
• Welding Procedure Specification (WPS) and Welder Qualification Records available
• In-process and final inspection with dimensional reports
• Third-party inspection support (customer / TPI agencies)
• ISO 9001:2015 compliant manufacturing systems
Advantages of Jyotiling Transformer Tanks
• Robust construction for long service life under outdoor conditions
• Excellent oil tightness and vacuum integrity
• Optimized designs for heat dissipation (especially corrugated type)
• Competitive lead times with in-house fabrication capability
• Full documentation package (drawings, MTCs, test reports, painting records)

About Us

We are Pioneer in the Thermal Equipments in India, was established in 2016 with world-class manufacturing facility in a 25,000 square feet area in Bakrol Gatrad, Ahmedabad, Gujarat, India.

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