Technology / product information

At KOBAYASHI CASTING, we implement a strict quality control system throughout the entire lost wax casting process to ensure consistent product quality. From the initial analysis of input metal composition to final inspection, every stage is closely monitored in accordance with the JIS G 5121 standard.
From the stage of material selection for casting, we conduct chemical composition analysis to ensure compliance with technical requirements. After the wax pattern casting process, products undergo multiple inspections, including dimensional measurement, hardness testing, and surface quality evaluation.
Through this rigorous quality management system, we confidently meet the stringent demands of industries such as medical devices, semiconductors, and industrial machinery.

In-House Quality Control System
To maintain stable quality for lost wax cast products, we are equipped with specialized inspection devices and conduct cross-checks at every production stage.
Inspection Equipment and Methods:
- Metal Composition Analyzer
Accurately verifies the chemical composition of raw materials before casting. This ensures materials meet technical standards and strictly adhere to JIS, preventing defects from the outset.
- Hardness Tester
Evaluates the mechanical strength and durability of cast products.
- 3D Coordinate Measuring Machine (CMM)
Measures each component with micron-level precision, ensuring dimensional accuracy based on design drawings. Uses scanning analysis to identify potential defects (e.g., trapped sand, micro-cracks) that visual inspections might miss.

Advantages of Lost Wax Casting at KOBAYASHI CASTING:
- Comprehensive In-House Quality Management
Fully equipped with metal analyzers, hardness testers, and 3D measuring machines to enforce strict quality inspections.
- Japanese-Standard Casting Technology
Precision casting management in accordance with JIS G 5121, ensuring stable and reliable quality.
- Diverse Industry Applications
Proven experience in manufacturing medical devices, semiconductors, water/gas and industrial machinery.
- Skilled and Experienced Technicians
Experts capable of managing complex, precision-demanding components.
- High-Precision Post-Casting Machining
±0.01mm tolerance in secondary machining.
- Material Versatility
Proficient in casting materials such as SCS13, SCS14, CF3M, 1.4581, and 17-4PH to meet a wide range of specifications.
- Global Export Capability
90% of products are exported to markets including the USA, Germany, Japan, South Korea, Taiwan, and Singapore.
- Eng-to-end Production
Integrated production from mold design, casting, machining to surface treatment—optimizing turnaround time and quality control.

KOBAYASHI CASTING performs full-process quality control - from material analysis to final inspection - ensuring reliability and consistency. Our JIS-compliant system, supported by advanced testing equipment, allows us to meet even the most demanding high-precision and complex-shape requirements.
Operating from our Vietnam factory, we maintain uniform quality standards for both domestic and global clients. This enables us to supply trusted products to critical industries like medical, semiconductors, and infrastructure.
For lost-wax cast parts requiring ultra-high precision, our integrated quality management guarantees performance and durability.
Contact us today to discuss your project needs!