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By: HEIL India | 15th Sep, 2025

Foundry Secrets: Making Durable Components for Global Rail Networks

One of the pioneers among the rolling stock manufacturers in India, HEIL is a flagship company of the Hindusthan Group, which has a legacy of more than 70 years. As a company devoted to accuracy, safety and longevity, the steel foundry of HEIL has emerged to be one of the largest privately owned foundries in India. This foundry not only serves the domestic rail demands but also provides vital parts to other international rail operators.

What makes HEIL’s foundry unique?

HEIL produces essential components for freight and passenger rail systems, ensuring that each part withstands heavy loads and harsh conditions.

  1. ISO 9001-2015 accreditation ensures consistent quality.
  2. Approved by RDSO (Ministry of Railways, India) for freight car castings.
  3. Dedicated R&D divisions continually integrate modern technologies.

Key Components and Their Significance

HEIL is among the leading railway product manufacturers in India, delivering high-quality components for global rail networks. The key components of their foundry operations include, but are not limited to: 

 1. Bogie Assemblies

Bogie assemblies provide stability and load-bearing support for rail vehicles. HEIL’s bogies are engineered to handle extreme conditions and heavy freight, making them indispensable for locomotives, freight wagons, and global rail networks.

2. Side Frames

Side frames are crucial for distributing weight evenly across freight cars. HEIL’s precision-engineered frames reduce wear and ensure smooth rail operations, lowering maintenance requirements.

3. Bolsters

Bolsters maintain balance and distribute the weight of railcars. HEIL’s bolsters enhance stability and ensure smoother operations, even in challenging environments.

4. Coupler Assemblies & Yokes

Couplers and yokes provide secure connections between railcars while absorbing shocks during coupling and decoupling. HEIL’s robust designs improve operational efficiency and extend the lifespan of rolling stock.

5. Draft Gear

Draft gears minimise energy impact during coupling, protecting both cargo and railcars. This feature contributes to safer and more efficient train operations worldwide.

How Does HEIL Ensure Global Standards?

HEIL’s foundry emphasises:

  1. Heavy-Duty Performance: Components built to endure the toughest freight conditions.
  2. Low Maintenance: Reduced operational costs through durable, long-lasting designs.
  3. Safety & Compliance: Adherence to international standards guarantees reliability.

What challenges do rail components face ?

Heavy loads, high-speed trains, and extreme environmental conditions put stress on rail parts. HEIL’s steel castings, especially made from high-quality manganese steel, harden over time through work-hardening, ensuring unmatched durability.

Railroad Track Components That Make a Difference

HEIL also manufactures a wide range of track components to support global rail efficiency:

  1. CMS/WCMS Crossings: For high-performance intersections.
  2. Diamond & Scissor Crossover Crossings: Ensure smooth rail transitions at complex junctions.
  3. Thick Web Switches (TWS) & Expansion Joints (ISEJ/TWSEJ): Enhance stability and accommodate thermal expansion.
  4. Canted Turnouts: Improve safety and working capacity in high-speed operations.

These components minimise maintenance, improve safety, and extend the operational lifespan of rail networks.

Conclusion

The presence of engineering skills, advanced foundry technology, and years of experience make HEIL one of the reliable names in the list of railway product manufacturers in India. Bogies to track parts, all castings are designed to the standards of world rail efficiency, durability and safety. Through a combination of tradition and innovation, HEIL has been at the forefront of modernising the rail infrastructure by supplying parts that keep the trains moving safely in India and globally. 

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