In the automotive industry, particularly in the commercial vehicle and truck segment, truck chassis components belong to the category of heavy-duty parts operating under harsh conditions. These components are subjected to high static and dynamic loads, continuous vibration, strong impacts, and repeated fatigue cycles throughout the long service life of commercial vehicles.

Therefore, technical requirements go beyond high tensile strength. Truck chassis cast iron components must ensure stable fatigue strength, excellent impact resistance, and uniform metallurgical structure across mass production batches. Even minor deviations in chemical composition, graphite structure, shrinkage cavities, or porosity defects can directly affect the durability and safety of the entire chassis system.

For this reason, cast iron casting technology for commercial vehicle components requires advanced engineering capability and a strict quality control system.

DISOCO (Song Cong Diesel Limited Company) is an experienced FC & FCD cast iron foundry specializing in automotive components, equipped with an advanced green sand casting system that complies with IATF 16949 standards for the commercial vehicle industry.

DISOCO Casting Capability for Truck Chassis Components
- Integrated Green Sand Casting Lines for Truck Chassis Parts
DISOCO operates a fully integrated green sand casting system, including both automatic and semi-automatic lines, enabling flexible production of medium to large-size truck chassis components.
The automatic SINTO (Japan) green sand casting line has a capacity of 10,000 tons/year with a molding speed of 30 seconds per mold, ensuring high mold stability and repeatability in mass production. Additionally, the semi-automatic casting line with a capacity of 5,000 tons/year and a maximum flask size of 900x600x500 mm allows production of chassis components weighing up to 100 kg.

- In-house Mold Design and Casting Simulation
DISOCO’s engineering team utilizes advanced software such as CATIA 3D and SOLID Cast for mold design and casting simulation. Early-stage metal flow and solidification analysis optimize gating and riser systems, minimizing shrinkage and internal defects—especially critical for thick-section and heavy-duty truck chassis castings. In-house mold development also shortens lead time and enhances production stability.

- IATF 16949 Certified Quality Control System
DISOCO applies a comprehensive quality management system certified to IATF 16949, ISO 9001, ISO 14001, ISO 50001, and ISO 45001. The factory is equipped with:
Spectrometer for chemical analysis
Ultrasonic NDT inspection
Magnetic particle inspection (MPI)
Tensile and hardness testing machines
Mitutoyo 3D CMM
Metallographic microscope

This advanced quality control system ensures that FC and FCD ductile iron castings for truck chassis components meet stringent requirements for mechanical properties, dimensional accuracy, and long-term durability.

With their heavy load and high fatigue characteristics, truck chassis components require cast iron solutions offering superior strength and stability. Through its integrated green sand casting system, in-house engineering capability, and IATF 16949-certified quality control, DISOCO not only meets strict technical standards for truck components but also provides sustainable casting solutions for commercial vehicles requiring high safety and long service life.