Center Enamel’s Production Steps: Crafting World-Class Glass-Fused-to-Steel Tanks

At Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel), we take pride in our meticulous production process that ensures the highest quality Glass-Fused-to-Steel (GFS) Tanks. Every step, from raw material preparation to final product inspection, is carefully monitored to deliver durable, reliable, and efficient storage solutions. With over 30 years of experience, our advanced production techniques and strict quality control measures have made us a trusted name in the global storage tank industry.

As a leading storage tank manufacturer worldwide. Center Enamel can provide Glass Lined Steel(GLS) tanks, fusion bonded epoxy tanks, stainless steel tanks, galvanized steel tanks and aluminum geodesic dome roofs, Wastewater and Biogas Project Equipments for global customers.

WasteWater Treatment Project Equipment Supply

hy Is the Production Process So Critical?

The fusion between steel and glass coating is the cornerstone of Glass-Fused-to-Steel Tanks. It directly impacts the tank’s durability, corrosion resistance, and service life. By adhering to rigorous production standards, we ensure that every tank we produce meets the highest international quality requirements.

Our Step-by-Step Production Process

CNC Laser Cutting

Confirmed drawings are input into the computer, and bolt holes and openings are precisely cut using CNC laser cutting machines.

Ensures accuracy and consistency in every panel.

Steel Pre-treatment – Shot Blasting

Steel panels undergo shot blasting according to SSPC SP10 standards, achieving a silver-white surface free of impurities.

Prepares the steel surface for optimal enamel adhesion.

Arch Bending

Steel panels are arch bent to the required radian based on the tank diameter.

Ensures the structural integrity and proper fit of the panels during assembly.

Automatic Enamel Spraying

Glass coating is automatically sprayed onto both sides of the steel panels.

Coating thickness is controlled within 230 to 450 microns for optimal protection and durability.

High Temperature Tunnel Oven

Enameled panels are fired in a tunnel oven at temperatures ranging from 820℃ to 930℃.

Facilitates the interfacial fusion of steel and glass, ensuring a strong and seamless bond.

Product Inspection

Each panel undergoes comprehensive quality inspection, including coating thickness measurement, 1500V holiday test, and color consistency check.

Ensures zero discontinuities and uniform quality across all products.

Why Choose Center Enamel’s Production Process?

State-of-the-Art Technology: Advanced machinery and automation for precision and efficiency.

Strict Quality Control: Every step is monitored to ensure compliance with international standards.

Experienced Team: Skilled technicians and engineers with decades of expertise.

Consistent Results: Reliable and high-quality products for every project.

Applications of Our Tanks

Center Enamel’s Glass-Fused-to-Steel Tanks are widely used in industries such as:

Drinking Water Storage: NSF/ANSI 61 certified for safe potable water storage.

Wastewater Treatment: Durable and corrosion-resistant solutions for wastewater management.

Biogas and Anaerobic Digestion: Air-tight and efficient storage for biogas production.

Agriculture: Reliable storage for irrigation water and agricultural waste.

Fire Protection: Robust solutions for fire water storage.

At Center Enamel, we believe that excellence begins with attention to detail. Our step-by-step production process ensures that every Glass-Fused-to-Steel Tank we deliver is safe, durable, and built to last. Trust us to provide world-class storage solutions for your project.

Shijiazhuang Zhengzhong Technology Co.,Ltd is a professional manufacturer dedicated to the design and fabrication of bolted storage tanks since 1989. Our products range includes Glass-Fused-to-Steel (GFS) tanks, fusion bonded epoxy tanks, stainless steel tanks, galvanized steel tanks and aluminum geodesic dome roofs. With professional enameling R&D team and more than 20 enameling patents, Shijiazhuang Zhengzhong Technology Co.,Ltd has become the leader in bolted tanks industry of Asia. Our products are certified to ISO 9001, CE, NSF/ANSI 61, WRAS, ISO 28765, LFGB, BSCI, ISO 45001 and other international standards.

Shijiazhuang Zhengzhong Technology Co., Ltd is not only the first manufacturer in China which produces Glass-Fused-to-Steel tanks, but also the most experienced professional bolted tanks manufacturer in Asia. The engineering & design, product testing and quality system of Center Enamel Glass-Fused-to-Steel tanks is in strict accordance with AWWA D103-09, OSHA, ISO 28765, NSF/ANSI 61, NFPA and other international standards. Center Enamel Glass-Fused-to-Steel tanks are wildly used in drinking / potable water, industrial effluents, municipal sewage, bio-energy, landfill leachate, agriculture and other applications. Until 2023, Center Enamel bolted tanks have been exported to more than 100 countries including USA, Australia, Canada, Malaysia, Indonesia, Russia, UAE, Panama, Brazil and South Africa etc., the superior tank quality and prompt service gains us worldwide recognition.

As an outstanding containment and cover system provider with more than 30 years of experience, Shijiazhuang Zhengzhong Technology Co., Ltd sincerely expects to establish long-term cooperation with the local partners throughout the world and make continuous contribution to the development of the industry.