Introduction
In the contemporary sanitary ceramics industry, OEM (Original Equipment Manufacturing) has transcended simple "manufacturing by drawings." With the rise of smart toilets and complex, large-format basins, OEM service has evolved into a comprehensive competition encompassing material science, precision tooling, and automated molding. As China’s first manufacturer of high-pressure casting equipment and an experienced ceramic producer, Sunlets reveals the standardized process that supports leading global brands.
1. Digital Engineering: The Battle for Micron-Level Accuracy
The customization journey begins with CAD/3D Modeling.
Industrial Scanning: We utilize industrial-grade 3D scanners for reverse engineering, ensuring data precision errors are kept within 0.05mm. Shrinkage Compensation: Ceramics undergo approximately 11%-13% linear shrinkage during Firing. Sunlets’ engineering team utilizes proprietary algorithms to compensate mold dimensions based on specific Slip Formulations, which is critical for preventing deformation and ensuring dimensional consistency. |  |
2. Customized R&D for Slip and Glaze
Each OEM product carries unique physical performance requirements.
Formulation Optimization: For high-pressure applications, we calibrate the Casting Slip to maintain optimal fluidity and a high solids content (typically 68%-72%).
Glaze Compatibility: Depending on the target market (e.g., matte glazes for Europe or high-gloss white for North America), we refine the Glaze Slurry to ensure its Coefficient of Thermal Expansion (CTE) matches the body perfectly, eliminating Crazing at the source.
3. High-Pressure Casting: Breaking the Complexity Barrier
This is where the "Sunlets Differentiation" is most apparent in the customization workflow.
Application of High-Pressure Casting (HPC): Traditional gypsum molding is inefficient and lacks precision. Utilizing our self-developed Battery Casting Machines, we apply 10-12 bar of hydraulic pressure to reduce the casting cycle from hours to just 3-5 minutes. Original Insight: The high-pressure environment does more than boost speed; it increases the density of the Green Body by over 15%. For intricate designs like "invisible rim" toilets or "ultra-thin edge" basins, HPC is currently the only technical solution that guarantees mass-production yield rates. |  |
4. Stringent Quality Control and Laboratory Validation
Functional Testing: Every batch must pass ball-discharge and ink-line flush tests to comply with international standards such as ASME A112.19.2/CSA B45.1.
Full Inspection Protocol: After precise Firing in our 96-meter tunnel kiln, every piece undergoes a vacuum leak test. Professional technicians then perform meticulous Fettling/Trimming to ensure a flawless tactile finish.
Choosing an OEM partner is essentially choosing predictable manufacturing certainty. By integrating equipment R&D expertise into the ceramic production cycle, Sunlets provides global brands with a one-stop, highly efficient solution from blueprint to finished product.