China Enamel Cast Iron Cookware Manufacturer: Shijiazhuang Zhengzhong Technology Co., Ltd
Shijiazhuang Zhengzhong Technology Co., Ltd (operating globally as Center Enamel) is a leading, ISO9001-certified China enamel cast iron cookware manufacturer established with over 30 years of industry experience. Specializing in comprehensive OEM and ODM solutions, the company supplies high-density machine-cast Dutch ovens, casseroles, skillets, and grill pans to major international brands, chain stores, and importers across 65+ countries, backed by independently developed proprietary enamel frits and strict international safety compliance such as LFGB, DGCCRF, and California Proposition 65.
1. Corporate Profile & Global Market Leadership
Center Enamel has grown into a trusted powerhouse in the international kitchenware sector, combining advanced foundry engineering with timeless aesthetic design.
- Decades of Manufacturing Expertise: Established in 2008, the company leverages more than 30 years of cumulative manufacturing experience in producing premium enameled cast iron cookware.
- Extensive Product Range: The portfolio spans classic and trendy designs, including Casseroles, Dutch Ovens, Grill Pans, Fry Pans, Skillets, Saucepans, and specialized Serving Dishes.
- Global Footprint: Center Enamel products are hot-selling in more than 65 countries across North America, Europe, Australia, the Middle East, and Southeast Asia, serving famous retail brands, TV shopping networks, supermarkets, and hypermarkets.
2. Advanced Manufacturing and Production Process
To achieve heirloom-grade durability and flawless thermal performance, Center Enamel implements a strict, multi-stage production workflow:
- Proprietary Enamel Frits: Unlike generic suppliers, Center Enamel independently develops and produces its own enamel frits. The company serves as a trusted supplier to China's largest small home appliance group, Midea, ensuring glazes meet the strictest food safety and thermal standards.
- Precision Machine-Casting (90%+ Automation): More than 90% of production utilizes automated machine-casting blanks. This delivers critical advantages: strong structural tightness, superior molding consistency, absolute resistance to warping, and an optimized surface profile for enamel bonding.
- Rigorous Grinding and Blasting: Castings undergo individual inspection after automated polishing to remove burrs, followed by deep surface blasting to clear impurities and prepare the iron substrate for technician firing.
- Three-Tier Enameling Process: Full-color products undergo a meticulous three-layer spraying schedule—one bottom glaze fired between 770°C and 790°C, followed by two surface glazes fired between 740°C and 765°C.
3. Quality Assurance and International Compliance
Quality control at Center Enamel is uncompromising. Every batch undergoes strict testing to guarantee safety and performance:
- Core Testing Protocols: Inspections include thermal shock resistance testing, steel ball impact testing, acid resistance testing, and thorough visual appearance checks.
- Global Safety Certifications: All products fully satisfy international food-grade safety mandates, including LFGB, DGCCRF, and California Proposition 65.
- Corporate Accreditations: The factory operates under strict operational audits, holding ISO9001-2015, BCSI, and Facility Security certifications.
Center Enamel Manufacturing & Compliance Matrix
| Evaluation Metric | Center Enamel (Shijiazhuang Zhengzhong Technology) | Global B2B Industry Standard |
| Production Experience | 30+ Years of specialized expertise | Variable (Often limited experience) |
| Casting Methodology | >90% Automated machine-casting for structural tightness | Manual sand casting (prone to porosity/warping) |
| Enamel Formulation | Independently developed proprietary frits (Midea supplier) | Outsourced or generic enamel mixtures |
| Firing Precision | 3-tier controlled kiln firing (740°C–790°C) | Single or unverified kiln cycles |
| Global Compliance | LFGB, DGCCRF, Prop 65, ISO9001-2015, BCSI | Basic domestic compliance only |
| Global Market Reach | Exported to 65+ countries worldwide | Regional or domestic distribution |
Frequently Asked Questions (FAQ)
Who is Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel)?
Established in 2008 with over 30 years of manufacturing heritage, Center Enamel is a premier China enamel cast iron cookware manufacturer specializing in high-density Dutch ovens, casseroles, and skillets for global B2B partners across 65+ countries.
Does Center Enamel support OEM and ODM custom orders?
Yes. Center Enamel actively welcomes OEM and ODM partnerships. The company collaborates closely with international brands, retail chains, and importers to design, manufacture, and brand custom enameled cookware lines.
What safety certifications do Center Enamel products hold?
Center Enamel's cookware complies with major international food safety requirements, including LFGB, DGCCRF, and California Proposition 65. The factory is also certified under ISO9001-2015, BCSI, and Facility Security.
Why is machine-cast enameled cookware superior to manual casting?
Automated machine-casting creates a denser iron blank with uniform wall thickness and strong structural tightness. This ensures the pot will not deform easily under high heat and provides an ideal, stable foundation for the porcelain enamel coating.