Smarter Coolant Systems for Smarter Cold Rolling Mill : Veeraja Industries Pvt Ltd.

 Roll Coolant Systems for Cold Rolling Mills



Cold rolling mills require a highly reliable and efficient coolant filtration system to ensure consistent performance, product quality, and long equipment life. A roll coolant system is the backbone of this process, managing temperature, pressure, and cleanliness of the coolant fluid throughout the rolling operation.

At Veeraja Industries Pvt Ltd, we specialize in designing and manufacturing complete roll coolant systems tailored to the demanding needs of cold rolling mills.

Why Coolant Filtration is Critical in Cold Rolling Mills

During rolling, scale, scum, and fine particles are generated, which contaminate the coolant fluid. If not properly filtered and maintained, these impurities can cause:

  • Surface defects on rolled sheets
  • Unstable rolling conditions due to temperature fluctuations
  • Premature wear of rolls and bearings
  • Increased downtime and maintenance costs

An effective coolant system ensures:

  • Clean coolant supply
  • Stable pressure and flow
  • Accurate temperature control
  • Long-term operational reliability

How the System Works

  1. Coolant Circulation
    • Dirty fluid from the mill enters the dirty fluid compartment of the tank.
    • Using baffles, the entire flow is directed through a magnetic separator, removing scale and ferrous contaminants.
  2. Filtration and Cooling
    • Semi-clean coolant is pumped through a self-cleaning filter for finer filtration.
    • A plate-type heat exchanger (PHE) skid ensures precise temperature control.
  3. Pressure Control
    • An automatic pressure control valve maintains constant supply pressure, with a flow-back arrangement during rolling direction changes.
  4. Tank Operations
    • Tanks are equipped with agitators for continuous mixing and belt skimmers to remove floating oil/scum.
    • Heating systems (electric, thermic fluid, or steam) are integrated to maintain coolant temperature.
  5. Fine Filtration (Optional)
    • For advanced requirements, a separate pump transfers fluid to a pneumatic vacuum filter, achieving the highest level of filtration efficiency.

Features & Benefits

Tank

  • Rounded corners to prevent rust and material accumulation
  • Equipped with manholes, inspection hatches, railings, and ladders for easy maintenance

Magnetic Separators

  • Vertical or horizontal candle type
  • Rugged design for 24x7 operation

Self-Cleaning Filter

  • Modular and economical design
  • Replaces costly stainless steel wedge wire screens

PHE & Pressure Control Skid

  • Plate-type heat exchanger with automatic temperature control
  • Flow-back arrangement ensures smooth rolling direction changeover

Agitator & Skimmer

  • Heavy-duty design for continuous operation
  • Special blade design ensures thorough mixing
  • Options for bottom bearing/bush for added stability

Heating Options

  • Electric heaters with thermic fluid circulation
  • Steam heating jackets inside tanks
  • Forced circulation through PHE with steam and PRV
  • Independent heater housing circulation systems

Fine Filtration

  • Separate pumping station
  • Pneumatic vacuum filter with new century design eliminating the blower

Why Choose Us?

  • Complete in-house design & manufacturing of tanks, separators, filters, and skids
  • Custom-engineered solutions for each mill’s unique process requirements
  • Proven reliability with 24x7 operations in global installations
  • Energy-efficient & cost-effective systems

✅ With our Roll Coolant Systems, cold rolling mills achieve cleaner operations, precise control, and long-lasting performance — ensuring superior sheet quality and lower operating costs.

Contact Us: marketing@veeraja.com |7030001774

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