Central India’s premier certified manufacturer of superheater coils, studded bed coils, economizers, water wall panels, and heavy industrial chimneys. Precision cold tube bending down to 1.5D and Form III IBR inspection.
Configure your boiler type, operational steam parameters, and pressure rating to instantly generate material grades, test criteria, and production lead times.
Manufactured in strict adherence to Indian Boiler Regulations (IBR 1950) & ASME Boiler & Pressure Vessel Codes.
Precision engineered in Nagpur with 100% radiographic weld testing, cold mandrel bending down to 1.5D CLR, and certified by the Directorate of Steam Boilers, Maharashtra.
To 620°C & 180 kg/cm² →
AFBC In-Bed Evaporator450+ MPa Shear Tested →
Bare & Spiral Finned4%–8% Fuel Savings →
Seamless Swaged EndsAnnealed for Zero Leak →
Twin-Wire SAW Gas-TightUp to 12m Panels →
Pendant, radiant, and convective superheater coils engineered to withstand extreme flue gas temperatures up to 600°C. Cold bent with strict wall thinning tolerances and post-weld stress relief.
Engineered specifically for AFBC and FBC in-bed evaporators subjected to vigorous sand and coal bed turbulence. Heavy-duty alloy studs provide maximum heat transfer and shield against abrasive wear.
Bare tube and spiral finned economizer coil blocks for flue gas sensible heat extraction. Boosts overall boiler thermal efficiency by 4% to 8%, reducing plant fuel consumption.
Generating bank tube bundles precision bent for expansion or welding into steam and mud drums. Swaged tube ends tested for roller expansion tightness under hydrostatic pressure.
Membrane and tangent tube water wall panels fabricated on automated fin-to-tube welding stations. 100% gas-tight construction prevents air ingress and heat loss in furnace combustion chambers.
Heavy boiler steam drums and mud drums fabricated with certified ultrasonic-tested carbon steel plates. Includes high-efficiency internal cyclone steam separators and dished end heads.
Inlet, outlet, and intermediate distributor headers with extruded nozzles, inspected under ultrasonic and magnetic particle testing for high-temperature superheater headers.
Heavy-duty deaerator feedwater storage vessels designed for boiler feedwater preheating, dissolved oxygen stripping, and thermal shock buffering in continuous boiler plants.
Compact, pre-assembled 3-pass smoke tube and composite water-cum-smoke tube package steam boilers for process plants. High thermal efficiency with low installation footprint.
IBR approved seamless forged elbows, tees, reducers, and weld-neck flanges rated for high-pressure steam up to 120 kg/cm² in ASTM A105 and A182 F11/F22 alloys.
Self-supporting, guy-wired, and multi-flue steel stacks engineered for power stations and process furnaces according to IS 6533 wind and seismic load standards with refractory lining.
Precision-cast high-chromium alloy fuel feed nozzles for pulverized coal and fluidized bed combustors. High resistance to severe abrasive wear and thermal fatigue up to 1100°C.
Directional and mushroom-type air nozzles / tuyeres for AFBC and CFBC boiler air plenum distributor plates. Ensures uniform air velocity distribution and prevents bed clinkering.
| Boiler Component | Standard Material Grade | Size Range (OD × WT) | Design Temperature | Test Protocols |
|---|---|---|---|---|
| Platen / Final Superheater | ASTM / ASME SA213 T22 / T91 | 38.1 mm to 50.8 mm × 4.5 to 8.0 mm | 540°C – 620°C | 100% Radiography, Eddy Current, IBR Hydro |
| Primary Superheater Coils | ASTM / ASME SA213 T11 / SA106-B | 31.8 mm to 44.5 mm × 3.6 to 5.0 mm | 420°C – 510°C | Dye Penetrant, Ultrasonic, Hydro 1.5x DP |
| In-Bed Evaporator Coils | SA210 Gr. C / Heavy Wall Carbon | 50.8 mm to 63.5 mm × 5.0 to 6.3 mm | 350°C – 450°C | Hardness Testing, Stud Shear Test, Hydro |
| Economizer Coil Blocks | BS 3059 Part 2 / SA210 Gr. A1 | 31.8 mm to 38.1 mm × 3.2 to 4.5 mm | 220°C – 320°C | Pneumatic Leak Check, IBR Form III-A |
| Water Wall Membrane Panels | SA210 Gr. A1 + IS 2062 Fin Bar | 50.8 mm to 63.5 mm × 4.5 to 5.5 mm | 320°C – 380°C | Fin Weld Penetration Macro Test, Hydro |
Our specialized field engineering teams execute high-pressure piping, certified scaffolding erection, and urgent tube puncture repairs with zero lost-time incidents.
Complete on-site retubing of economizers, bed coils, and superheaters during planned plant overhauls. Certified IBR high-pressure welders (GTAW / SMAW).
Heavy-duty Cuplock system scaffolding designed for boiler interior furnace inspections, refractory repair, and external chimney platforms with green tag certification.
Turnkey fabrication, stress analysis, pipe hanger installation, and steam tracing for high-pressure steam distribution headers and turbine supply lines.
High-alumina castable lining, burner block casting, boiler furnace brickwork, and anti-abrasion guniting up to 1600°C for fluidized bed furnaces.
Rockwool and ceramic fiber mattress thermal lagging with aluminum and GI cladding to minimize radiation heat losses across boiler headers and pipelines.
Comparing technical standards between our Nagpur engineering works and conventional fabricators.
| Engineering Parameter | Modern Boilers Pvt. Ltd. | Conventional Fabrication Workshops |
|---|---|---|
| Raw Tube Metallurgical Sourcing | ✓ 100% Prime Mill TC with Form IV | ✗ Commercial grade, unverified test records |
| Tube Bending Method & Ovality | ✓ CNC Hydraulic Cold Bent down to 1.5D | ✗ Hot torch bending causing thinning & ovality |
| IBR Inspection Certification | ✓ Official Form III-A & III-B Witnessed | ✗ Uncertified local third-party letters |
| Non-Destructive Testing (NDT) | ✓ 100% Butt Joint Radiography (RT) & DPT | ✗ Random 5-10% spot sampling only |
| Emergency Breakdown Turnaround | ✓ 5 to 7 Days Express Turnaround | ✗ 4 to 6 weeks standard lead time |
Mobilizing within 24 hours to industrial corridors in Nagpur, Chandrapur, Raipur, Bhilai, Wardha, and Central India.
Mobilizing within 24 hours to industrial corridors in Nagpur, Chandrapur, Raipur, Bhilai, Wardha, and Central India.
Strategically located on Kamptee Road in Nagpur, Modern Boilers Pvt. Ltd. operates dedicated fabrication bays equipped with heavy-duty cold tube bending machines, automated stud welding, and radiographic testing enclosures.
Over three decades of delivering zero-defect pressure parts to steel plants, thermal power stations, sugar mills, and paper manufacturing facilities.
Direct engineering answers to regulatory, metallurgical, and delivery requirements for industrial boilers in India.
Submit your specifications, tender RFP, or emergency service requirements. Our senior technical managers review all inquiries and respond with formal commercial proposals.
Submitted directly to our technical estimation engineers in Nagpur.
