+91 98361 05950 info@indoeast.com NH-6, Jangalpur, Howrah – 711411, West Bengal, India
18,000+ MT Capacity

World-Class Manufacturing

From raw steel to finished, galvanized structures — every step under one roof at our Jangalpur, Howrah facility. Advanced equipment. Proven processes. ISO 9001 quality.

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Our Facility

Fully Integrated Under One Roof

The Indo East Corporation manufacturing complex at Jangalpur, NH-6, Howrah is a fully self-contained steel processing facility. We handle every stage of the production cycle — from raw material receipt and design review, through precision cutting, fabrication, and welding, to pre-treatment, hot-dip galvanizing, quality inspection, and final dispatch.

This end-to-end integration eliminates sub-contractor dependency, gives us complete control over quality and timeline, and allows us to respond to client requirements with far greater speed and flexibility than multi-vendor supply chains.

Our facility is equipped with overhead cranes, CNC plasma cutting machines, robotic welding stations, MIG/MAG welding equipment, drill lines, pre-treatment baths, a 7-metre hot-dip galvanizing kettle, and a dedicated quality lab — making us one of Eastern India's most comprehensively equipped steel structure manufacturers.

ISO 9001:2015 Certified
18,000+ MT / Year
22km from Port
Indo East Manufacturing Facility — Jangalpur Howrah
18,000+ MT Annual Production Capacity
7m Galvanizing Kettle Length
5T Max Single-Piece Weight
150+ Skilled Workforce
22km Distance to Kolkata Port
Infrastructure

Key Equipment & Machinery

Our plant is equipped with advanced machinery for precision fabrication and galvanizing — giving us a decisive edge in quality and throughput.

Equipment / FacilitySpecification / CapacityPurpose
Hot Dip Galvanizing Kettle7m × 1.2m × 1.6m (L×W×D)Zinc coating of fabricated steel components
CNC Plasma Cutting MachineHigh-definition plasma, up to 50mm thicknessPrecision profile & hole cutting in steel plates
Robotic Welding StationsMultiple units, MIG/MAG processAutomated, consistent weld quality for high-volume runs
Manual MIG/MAG WeldersCO₂ / Argon shielded weldingSkilled manual welding for complex joints
Overhead EOT CranesMultiple: 5T, 10T, 20T capacityMaterial handling across fabrication and galvanizing bays
Drill Line / Radial Drill PressMultiple spindle drill lineBolt hole drilling per drawing specifications
Pre-Treatment BathsDegreasing, Pickling (HCl), Rinsing, FluxingSurface preparation before galvanizing
Zinc Kettle (Furnace)Natural gas fired, temperature-controlledMolten zinc bath at 450°C for immersion galvanizing
Shot Blasting MachineRotary table typeSurface cleaning for painting / duplex coating
Straightening & Bending PressHydraulic press, up to 250TStraightening of sections and bending operations
Angle Drill & Punching LineAutomated angle drill lineDrilling and punching of angle sections for towers
Testing & QC LabCoating thickness gauges, hardness testers, WPS filesIn-process & final quality verification
Step by Step

Our 11-Step Manufacturing Process

Every order follows a defined, ISO-compliant production workflow — ensuring consistency, quality, and on-time delivery at every stage.

01
Drawing & BOQ Review

Client drawings, specifications, and bills of materials are reviewed. Any queries resolved before production begins.

02
Raw Material Procurement

IS 2062 / IS 8500 steel sourced from approved mills. Mill test certificates verified. Material tagged to order.

03
Incoming Inspection

Visual and dimensional check on incoming steel. Chemical & mechanical properties verified against test certs.

04
CNC Marking & Cutting

CNC plasma cutting for profiles and holes. Angle drill line for tower leg members. Precision to drawing tolerances.

05
Drilling & Punching

Bolt holes drilled or punched to match assembly drawings. Tolerances checked per IS 7215 / customer specs.

06
Sub-Assembly & Fit-Up

Components assembled in jigs for dimensional accuracy. Fit-up inspected before welding commences.

07
Welding

Robotic MIG/MAG welding for repetitive joints. Skilled welders for complex assemblies. WPS followed for every joint.

08
Weld Inspection

Visual weld inspection per IS 822. Dimensional check. NDT (DP test / UT) when specified by client or TPI.

09
Pre-Treatment (7-Stage)

Degreasing → Water Rinse → Acid Pickling (HCl) → Water Rinse → Fluxing → Drying → Ready for galvanizing.

10
Hot Dip Galvanizing

Immersion in 450°C molten zinc bath. 7-metre kettle handles large components. Coating min. 75–85 microns per IS 2629.

11
Final QC & Dispatch

Coating thickness measured with DFT gauge. Dimensional check. Assembly trial (when required). Marking, bundling, and dispatch.

Core Capability

Hot Dip Galvanizing — Our Edge

Our 7-metre hot-dip galvanizing kettle is one of the largest in Eastern India — giving us the ability to galvanize long structural members, assembled components, and large custom fabrications in a single immersion. This is a significant competitive advantage over manufacturers who have to outsource galvanizing.

Hot-dip galvanizing provides a metallurgically bonded zinc coating that is superior to paint or spray coatings in terms of adhesion, durability, and maintenance-free life. A typical galvanized structure in an outdoor environment can last 25–75 years with zero maintenance — making it the preferred corrosion protection for telecom towers, substations, and transmission structures globally.

Galvanizing Kettle Specifications

Length
7.0 metres
Width
1.2 metres
Depth
1.6 metres
Operating Temp.
450–460 °C
Coating Standard
IS 2629 / ASTM A123
Min. Coating
75–85 microns
Enquire About Galvanizing Services

The 7-Stage Galvanizing Pre-Treatment Process

Degreasing

Alkaline degreasing removes oils, grease, and organic contaminants from steel surfaces.

Water Rinse (1)

Thorough rinsing after degreasing to remove chemical residue.

Acid Pickling

Hydrochloric acid bath removes mill scale and rust — exposing clean steel for zinc bonding.

Water Rinse (2)

Rinsing after pickling removes acid and residual scale from the steel surface.

Fluxing

Zinc ammonium chloride flux prevents oxidation and aids zinc bonding during immersion.

Drying

Components dried in warm air — residual moisture eliminated before galvanizing immersion.

Hot Dip Galvanizing

Immersion in molten zinc bath at 450°C. Metallurgical bonding creates a multi-layer coating.

Quenching & Cooling

Water quench or air cooling. Coating thickness measured. DFT gauge check per IS 2629.

ISO 9001:2015

Quality Control at Every Stage

Our quality management system is ISO 9001:2015 certified. Every order is subject to documented inspection protocols — from raw material receipt to final dispatch.

Raw Material Inspection

Incoming steel is verified against Mill Test Certificates. Chemical and mechanical properties checked for compliance with IS 2062 and customer specifications.

Dimensional Inspection

All cut, drilled, and fabricated components checked against GA drawings. Tolerances per IS 7215 or customer specs. Jig checks for critical assemblies.

Weld Quality Control

Visual weld inspection per IS 822. Welder qualifications maintained per WPS/PQR. NDT (Dye Penetrant, Ultrasonic) conducted as per customer requirements.

Galvanizing Inspection

Coating thickness measured with calibrated DFT gauges. Adherence test. Visual check for bare spots, lumps, and drips. Results recorded in galvanizing report.

Third-Party Inspection (TPI)

We support inspections by BVQI, SGS, Bureau Veritas, DNV, TÜV, and customer-nominated TPI agencies. Our records are maintained to facilitate smooth inspections.

Pre-Dispatch Inspection

Final check before loading. Assembly trial (for complex structures). Marking, stencilling, and bundling per export or client packing requirements.

ISO 9001:2015
Quality Management System
ISO 14001:2015
Environmental Management
ISO 45001:2018
Occupational Health & Safety
NSIC Registered
National Small Industries Corp.

Interested in Our Manufacturing Capabilities?

Visit our facility, request a sample, or send your specification for a quote. We welcome buyer site visits and third-party inspections.

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