MANUFACTURING

We at Vigro Wires are committed to enhancing customer satisfaction by manufacturing high-quality, competitively priced High-carbon wire and Stainless steel wire in line with customer specifications.

Vigro Wires · Manufacturing Intelligence

OUR
PROCESS

From raw rod to finished wire — every metre engineered for consistency, strength, and global standards.

Vigro Manufacturing
01

Raw Material Intake

Wire rods are sourced from India's leading steel producers — Tata Steel, ESL, and JSW. Every incoming batch is inspected and stored under controlled conditions before entering the production line.

Input Material
02

Mechanical Descaling

Rather than traditional acid pickling, we use mechanical descaling to clean wire rods. This removes surface oxides without chemical baths — a cleaner, more consistent, and environmentally responsible approach.

03

Phosphating

Wire passes through our 24-metre phosphating tank, applying a uniform phosphate coating that anchors lubricant during drawing and extends the shelf life of black wire.

04

Borax Lubrication

Borax is applied as a dry lubricant before drawing, reducing die friction and heat build-up to preserve wire integrity at every pass.

Surface Treatment
05

Wire Drawing

Wire is progressively drawn through precision carbide dies, reducing diameter while building tensile strength. Drawn wire is wound onto spools of up to 2,000 kg.

Mechanical Processing
06

Annealing & Patenting

Wire passes through our 28-metre gas-fired furnace with lead bath cooling — the heart of our process. This refines the steel's pearlitic microstructure, delivering the ductility and strength profile that defines our wire's performance.

Wire for intermediate supply is prepared for dispatch at this stage.

Core Heat Treatment
07

Rinse

Wire is thoroughly rinsed after patenting to remove surface residues and prepare a clean substrate for the galvanizing sequence.

08

Surface Activation

A controlled activation step removes residual oxides and prepares the steel surface for maximum zinc adhesion in the galvanizing bath.

Surface Activation
09

Hot Water Rinse

A hot water rinse neutralises carry-over from the previous stage and pre-warms the wire, ensuring optimal flux adhesion and a smooth entry into the galvanizing bath.

10

Flux

Zinc ammonium chloride flux is applied to activate the wire surface and prevent re-oxidation in the moments before galvanizing.

Pre-galvanizing Treatment
11

Hot Dip Galvanizing

Wire is immersed in molten zinc at ~450°C. Two innovations set our galvanizing apart — a ceramic composite zinc kettle for superior coating consistency, and Nitrogen wiping technology for precise zinc application up to 400 gsm. Both replace conventional methods used across the industry.

Galvanized & Black Wire
12

Cooling

Galvanized wire passes through a controlled water-quench section, setting the coating and bringing the wire to safe handling temperature.

Final Stage
13

Winding & Quality Check

Wire is wound onto formers of 800–900 kg. Every coil is inspected against our full suite of mechanical and physical parameters before moving to finished goods.

Quality Control
14

Packaging & Dispatch

Coils are HDPE-wrapped and oiled or unoiled per customer specification, in weights between 20–300 kg. All dispatches carry quality clearance documentation.

Dispatch

OUR FACILITY

In-House Die Preparation

Drawing dies are manufactured and maintained on-site, giving us direct control over dimensional tolerances across every production run.

Nitrogen Generation

Nitrogen for our wiping process is produced on-site, ensuring consistent purity and uninterrupted supply.

Power Continuity

A UPS system maintains furnace operations for 20 minutes during any power interruption, ensuring no loss of process continuity and no compromise on wire quality.

Zero Liquid Discharge

All process water is treated through our in-house ETP and STP plants. No untreated water is released. We hold ZLD status.

Every Wire. Engineered.

ISO CERTIFIED.
BIS, JIS, ASTM & SAE’ Standardised.
GLOBALLY TRUSTED.

Our manufacturing process is certified to ISO standards for quality, environment and occupational health — with in-house R&D labs and testing facilities ensuring every coil meets the specification it was made for.

🏅 ISO 9001
🌍 JIS · BSI · ASTM · SAE Standardised
R&D Certified

Quality Assurance

We ensure every coil meets stringent ISO-certified quality standards, delivering consistent performance, durability, and customer satisfaction.

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Packaging

Engineered packaging solutions ensure safe handling, corrosion protection, and optimized logistics efficiency across global supply chains.

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Our Products