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Equipment & Capabilities

Manufacturing process stages

01 — HR Slitter: HR Slitting Line

Wide hot-rolled coil is cut lengthwise into individual narrow coils of the required widths, then inspected against customer specifications.

  • Accurate slit widths
  • Clean edge quality
  • Tight coil winding
  • Full final inspection
  1. Load & verify Coil lifted onto the uncoiler by overhead crane or coil car; identity, dimensions and surface condition verified before processing.
  2. Align Unwound at controlled speed under proper tension; entry guides and centering equipment align the strip accurately.
  3. Slit The slitter head's circular rotary knives cut the strip into the required widths in a single operation.
  4. Separate Separator discs and guides part the strands, preventing surface damage and maintaining edge quality.
  5. Recoil & inspect Rewound onto recoiler mandrel as narrow coils; tightness and winding monitored, then unloaded and inspected to specifications

02 — Pickling: Hydrochloric Acid Pickling Line

Mill scale, rust and surface oxides are removed to produce clean, bright and uniform steel surfaces — ready for cold rolling.

  • Clean, bright surface
  • Scale & oxide free
  • Edge trimmed to width
  • Corrosion protected
  1. Load & uncoil Coils are loaded and uncoiled into the line.
  2. Scale-break Strip is flattened and scale-broken to improve acid penetration.
  3. Pickle Pre-washed, pickled in HCL tanks, then thoroughly rinsed and dried.
  4. Finish Edge-trimmed to the required width and oiled for corrosion protection.
  5. Recoil & inspect Recoiled under controlled tension; surface quality, dimensions, edge condition and corrosion protection verified.

03 — CR Mill: 6HI

Pickled coil is reduced to precise gauge while gaining surface finish, dimensional accuracy, flatness and mechanical strength.

  • Precise gauge control
  • Superior surface finish
  • Dimensional accuracy
  • High mechanical strength
  1. Thread Coil loaded, inspected and the strip threaded through the mill.
  2. Clean Cleaning and rolling emulsions reduce friction and control temperature.
  3. Roll The six-roll stand — backup, intermediate and work rolls — reduces thickness under precisely controlled rolling forces.
  4. Control AGC, roll bending, intermediate roll shifting and tension control maintain consistent thickness, profile and flatness across the width.
  5. Recoil & QC Recoiled under controlled tension; gauge accuracy, surface, dimensions and coil integrity inspected.

04 — Annealing: Bell Annealing Furnace

Cold-rolled coil is heat-treated to restore ductility, improve formability and recover mechanical properties.

  • Restored ductility
  • Improved formability
  • Uniform grain structure
  • Stable dimensions
  1. Stack Coils are stacked on furnace bases.
  2. Seal Enclosed within a protective inner cover under a controlled nitrogen atmosphere.
  3. Heat A heating bell gradually raises temperature according to a predefined annealing cycle.
  4. Soak During soaking, recrystallization relieves cold-rolling stresses and forms a uniform grain structure.
  5. Cool & inspect A cooling bell cools the coils under control; hardness, ductility, surface and dimensional stability verified.

05 — Galvanizing: Continuous Hot-Dip Galvanizing Line

A durable zinc coating is metallurgically bonded to the strip — enhancing corrosion resistance and service life. The galvanized strip feeds directly into the colour-coating line for PPGI.

  • Durable zinc coat
  • Even coating thickness
  • Corrosion resistance
  • Long service life
  1. Clean CRFH is uncoiled and cleaned to remove residual oils and contaminants.
  2. Condition Heated and conditioned in a controlled atmosphere furnace, then cooled to the optimum coating temperature.
  3. Dip Immersed in a bath of molten zinc, forming a strong metallurgical bond between steel and zinc.
  4. Air-knife High-pressure air knives precisely control coating thickness and uniformity by removing excess zinc.
  5. Finish & Inspect Cooled and solidified, with passivation or skin-passing as required; coating weight, thickness and appearance inspected.

06 — PPGI: Colour Coating Line · PPGI

Galvanized steel is transformed into a high-performance, painted product with enhanced corrosion resistance, weather protection and lasting visual appeal.

  • Vibrant colour finish
  • Corrosion resistance
  • Weather protection
  • Low maintenance
  1. Clean Thorough cleaning and surface preparation removes contaminants that affect coating adhesion.
  2. Pretreat A chemical pretreatment improves corrosion resistance and creates an ideal surface for painting.
  3. Primer A primer coat is applied and cured in a controlled-temperature oven for strong bonding to the substrate.
  4. Coat Precision roller coaters apply topcoat and backcoat systems — PE, SMP, Unicoat or PVDF — to the required performance.
  5. Cure & inspect Cured, cooled and inspected for consistent coating quality, colour uniformity and surface finish.

07 — Finishing: Finishing Facilities

Value-added operations deliver steel in customer-ready dimensions and configurations — minimising waste and supporting downstream manufacturing.

  • Custom slit widths
  • Precise cut lengths
  • Excellent flatness
  • Ready-to-use stock

08 — Dispatch: Dispatch Operations

Finished coils and sheets are delivered safely, securely and in accordance with customer specifications.

  • Protective packaging
  • Verified loads
  • Safe transport
  • Full traceability
  1. Approve Products receive final quality approval before packing.
  2. Pack Packed with moisture-resistant wrapping, edge protectors, steel strapping and waterproof covers.
  3. Verify Each shipment is verified for product identification, dimensions, weight, quantity and documentation.
  4. Load Controlled loading procedures ensure safe transportation and product integrity.
  5. Deliver Dispatched with complete traceability from plant to customer destination.