Technology / product information

DISOCO (Song Cong Diesel Limited Company) is a comprehensive casting manufacturer based in Thai Nguyen Province, Vietnam. Our core technology is green sand casting using FC (gray cast iron) and FCD (ductile cast iron), powered by fully automated Japanese-made molding lines.

By operating a fully integrated in-house production system from casting to secondary machining, heat treatment, and inspection, we achieve shorter lead times, cost optimization, and stable quality, meeting the high standards of global industries.

■ High-Efficiency Automated Casting System – Up to 70kg Components
Our fully automated green sand casting system utilizes molding and pouring equipment from SINTO (Japan), enabling stable and precise production at a rate of 30 seconds per mold.
- Flask size: 700 × 600 × 500mm
- Product weight range: 1kg to 70kg

Thanks to consistent process control, DISOCO can mass-produce high-precision FC/FCD cast components, while effectively minimizing casting defects such as porosity and shrinkage.

■ Why choose DISOCO? – Unique Strengths in Sand Casting
① Stable Production & High Reproducibility with Japanese Equipment
Our fully automated sand casting line from SINTO (Japan) automates every key process from sand mixing, mold forming to pouring and mold knockout.
We ensure dimensional stability and shape consistency even during mass production.

② Versatility in Materials, Shapes, and Weights
We support a wide range of cast iron grades, including FC150 to FC300 and FCD450/500.
Our system flexibly handles small to large parts (1kg to 70kg) on the same line, with a strong track record in complex components such as cases and housings.

③ In-House Post-Processing Tailored for Casting
All post-casting processes, including machining, heat treatment, coating, and inspection are performed in-house.
We provide optimized secondary processing with distortion correction and precision machining based on the raw casting condition.
By eliminating outsourcing, we achieve both faster lead times and more consistent quality.

④ Dedicated Quality Assurance System for Sand Casting
Equipped with specialized inspection tools:
- Chemical analysis (ARL3460)
- Hardness testing
- Ultrasonic flaw detection
- Dimensional inspection using Mitutoyo 3D CMM
- Certified under IATF 16949 and ISO 9001, our system meets the strict quality standards of the automotive industry.

■ Application Examples
- Motor Housing (FC200, 63kg): Supplied to FDI clients
- Exhaust Manifold (FC150, 7.2kg): Exported to the U.S
- Electric Motor Case (FCD450, 9.8kg): JIS-compliant, supplied to an FDI client

■ Key Benefits
- Fully in-house production from sand casting to secondary processing → Enables easy lead time control
- Japanese equipment + IATF 16949 certification → Clear and reliable quality management system

DISOCO specializes in mass production of FC (gray iron) and FCD (ductile iron) components through automated green sand casting lines from Japan. Our fully integrated in-house production, from casting and machining to heat treatment and inspection, enables us to deliver shorter lead times, optimized costs, and stable quality. With certifications under IATF 16949 and ISO 9001, we offer dependable quality assurance for industries with strict production standards.

If you're seeking a reliable sand casting partner in Vietnam, DISOCO is ready to deliver precision, quality, and consistency you can trust.