Explore our industrial products, including vacuum mixers, high-purity water systems, and sanitary storage solutions.
Within the sanitary manufacturing landscapes of cosmetics, pharmaceuticals, chemical engineering, and food processing, the selection of containment architecture is a critical determinant of product integrity and operational efficiency. Among various design topologies, the Flat Cover Type Stainless Steel Storage Tank has emerged as an indispensable workhorse. Unlike pressurized vessel profiles with dome heads, flat cover configurations are engineered specifically for atmospheric processes requiring maximum access, ease of validation, and optimal vertical space utilization.
Flat cover systems offer distinct operational benefits, particularly in batches involving manual ingredient dispersion, frequent internal inspections, or integration with overhead overhead agitators and mixing bridges. When engineered using high-grade austenitic steel alloys (specifically SUS304 and SUS316L), these tanks serve as passive, non-reactive environments that prevent cross-contamination, maintain batch consistency, and resist highly corrosive chemical formulations. As global regulatory bodies such as the FDA, EMA, and NMPA step up their sanitation inspections, the sanitary geometry of these tanks has evolved to eliminate dead-legs and ensure complete drainability.
Decisive technical factors that distinguish high-performing flat cover sanitary tanks from standard industrial vessels.
Utilizing high-purity SUS304 & SUS316L stainless steel. Our alloys undergo rigorous spectrographic testing to verify low-carbon concentration and high chromium-nickel resistance against pitting and crevice corrosion under prolonged liquid chemical exposure.
Internal polishing achieves an ultra-smooth finish with Ra < 0.4μm. Options include mechanical buffing and electropolishing, which eliminate microscopic surface irregularities to prevent bacterial adhesion and biofilm growth.
Engineered using zero-dead-leg Tri-Clamp connections. Tanks feature built-in sanitary spray balls (CIP), quick-release manways, sample valves, analog/digital temperature sensors, and high-precision load cells for batch management.
The global manufacturing sectors for cosmetics and personal care products are experiencing rapid shifts due to changes in consumer preferences and strict regulatory mandates. In response, processing equipment design has moved toward modularity, cleanability, and process automation. The traditional approach of utilizing generic storage drums has been replaced by custom engineered systems that integrate with the production line. High-grade flat cover storage tanks are now standard components, ensuring a hygienic transition between mixing operations and the final filling process.
A notable trend is the high demand for custom modular setups. Companies are seeking units that can adapt to different product lines, from high-viscosity body creams to fluid alcohol-based sanitizers. Consequently, suppliers must offer variable agitator designs—such as anchor, paddle, or propeller configurations—that can be mounted on the flat cover without compromising seal integrity. Additionally, with the rise of Industrial Internet of Things (IIoT) frameworks, storage units are transitioning from passive containment to intelligent hubs. These are equipped with continuous level tracking, automated CIP valves, and temperature control systems that interface directly with Central SCADA control systems.
Bridging advanced research, global scale manufacturing, and custom processing solutions.
Established in 1992, SINAEKATO has grown to become one of China's premier machinery brands, delivering one-stop solutions for the cosmetics, skin care, pharmaceutical, food, and daily chemical industries. Our technological expertise in mixing systems, emulsification, homogenization, water purification, storage vessels, and packaging lines is recognized globally. We operate a massive production facility in Gaoyou City, backed by dynamic sales and support centers that service customers worldwide.
We are driven by the belief that science and technology are the core drivers of enterprise growth. By consistently investing in technical research and development, utilizing state-of-the-art production machinery, and following rigorous quality control protocols, we ensure that every machine leaving our facility meets high performance standards. We work closely with leading component brands, sourcing 80% of our key parts from internationally renowned suppliers (including Siemens, ABB, Schneider, and Omron) to guarantee system reliability and parts availability across the globe.
Over three decades of manufacturing expansion, technological breakthroughs, and successful partnerships with global industry leaders.
Our founders began their journey in the chemical machinery industry, establishing the foundational expertise in process engineering and metal fabrication.
Guangzhou Sina Cosmetics Engineering Equipment Co., Ltd. was established to specialize in cosmetic manufacturing machinery.
Hong Kong Hantao International Investment Co., Ltd. was established, marking our first step toward global expansion and trade.
Gaoyou Sina Chemical Machinery Equipment Factory was established. Concurrently, Guangzhou Sina Cosmetics Engineering was renamed to Guangzhou Sina Chemical Machinery Co., Ltd.
Gaoyou Sina Light Industry Machinery Equipment Factory was established to focus on lighter industrial applications and component manufacturing.
Purchased 10,000 square meters of industrial land in Gaoyou City. A modern, centralized manufacturing facility was commissioned under the name: SINA EKATO CHEMICAL MACHINERY CO., LTD (GAOYOU CITY).
Established Yangzhou Hantao Chemical Machinery Co., Ltd., further scaling our regional manufacturing capabilities and material sourcing networks.
Acquisition of Guangzhou Jingcheng Machinery. We built a large machinery exhibition center and established dedicated global export routes.
Guangzhou Sina Chemical Machinery Co., Ltd. officially renamed to Guangzhou SINAEKATO Chemical Machinery Co., Ltd. to align with our unified corporate branding.
Acquired Guangzhou Suogao Machinery Equipment Co., Ltd., integrating their specialized engineering technologies into our design systems.
SINA EKATO Chemical Machinery Co., Ltd (Gaoyou City) was officially designated as the central headquarters for Production, Sales, and After-Sale Service.
Established SINA EKATO Equipment (Jiangsu) Co., Ltd. as a joint foreign cooperation venture, standardizing processes to match international engineering expectations.
Partnered with European industrial pioneer FLEMAC to establish Germany SINAEKATO Group Co., Ltd., introducing German design methodologies into our R&D pipeline.
Partnered with South Africa Unilever on a cosmetic manufacturing system worth $800,000, and delivered custom systems for SK-II/Shiseido OEM manufacturing projects valued at $1,500,000.
Partnered with Japanese daily chemical manufacturers to supply advanced detergent and liquid washing systems worth $1,000,000.
Procurement teams at enterprise level require comprehensive verification and compliance protocols. For flat cover stainless steel storage units, this goes beyond checking raw dimensions; it requires looking into the chemistry of the raw materials, the precision of the manufacturing, and the alignment with sanitary standards. SINA EKATO meets these needs by providing full material traceability through Mill Test Certificates (MTC) matching EN 10204 3.1 standards, ensuring our stainless steels match exact AISI definitions.
Every internal weld is ground, polished, and passivated to eliminate cracks or joints where organic residues or biofilms could form. Gaskets and seal materials are sourced from FDA-compliant compounds (such as PTFE, EPDM, or FKM Viton), ensuring stability across clean-in-place cycles.
We supply complete documentation packages to assist in validation, including installation qualification (IQ) and operational qualification (OQ) templates, weld logs with radiography reports, passivation certificates, and raw material mill sheets.
Our fabricators utilize automated orbital TIG welding machines alongside manual TIG techniques with high-purity argon backing gas. Completed welds undergo dye penetrant inspections and hydrostatic validation testing to confirm structural soundness.
High-quality flat cover storage vessels play a critical role as buffer units within broader production lines. In typical processing configurations, raw water is purified via multi-stage reverse osmosis (RO) systems (ranging from 500L/H to 2000L/H). This pure water is then piped to high-shear vacuum emulsification mixers where fats, oils, and active ingredients are blended to form consistent emulsions. The finished batch is subsequently transferred into flat cover storage tanks, where the product is held prior to the filling and packaging stage.
During the holding phase, maintaining product uniformity and temperature control is vital. Our flat cover storage tanks are equipped with low-speed agitators to prevent phase separation in emulsions or sedimentation in suspensions. For temperature-sensitive products, integrated thermal jackets connected to plant water systems keep the batch at the required temperature, preparing it for packaging without risking thermal degradation.
The manufacturing plants of tomorrow will rely on smart, automated systems. Static storage tanks are being transformed into active, data-providing nodes within local industrial control loops. SINA EKATO is at the forefront of this evolution, developing next-generation vessel platforms that incorporate real-time monitoring and automation features designed to reduce product waste and optimize clean-in-place routines.
Integrating non-contact radar level sensors directly onto the flat cover structure. These sensors provide high-precision volume data to the central PLC, preventing dry running of discharge pumps and eliminating manual dipstick measurements.
Utilizing high-efficiency rotational spray heads and integrated conductivity sensors to monitor run-off water purity. This configuration helps validate clean-in-place cycles, reduces water consumption, and speeds up product turnarounds.
Developing quick-change top drives that allow operators to switch mixing tools within minutes. This adaptability enables a single tank to process high-viscosity creams, low-viscosity lotions, or thin solutions depending on scheduling demands.
Technical answers to key structural, process-related, and regulatory questions.
Downstream equipment designed to complete your product preparation and packaging lines.
Sina Ekato