Precision Engineering Solutions Designed for High Performance and GMP Compliance
In the modern oral care and cosmetic industries, the transition from rigid aluminum tubes to complex, multi-layered composite plastic (PBL) and aluminum barrier laminate (ABL) soft tubes represents a paradigm shift. Consumers demand high-precision dispensing, ergonomic squeezing characteristics, and flawless packaging aesthetics. To fulfill these user intents, packaging machinery must operate with exceptional precision, leaving no room for product waste, contamination, or aesthetic flaws.
A high-quality soft toothpaste filling sealing machine is not merely a dispenser; it is a synchronized mechanical system that coordinates tube feeding, photoelectric orientation, volumetric dosing, internal hot-air or ultrasonic heating, high-force sealing, and mechanical trimming. As a leading manufacturer and supplier, SINAEKATO engineers systems to handle non-Newtonian fluids with complex rheological properties (such as gel-based, multi-stripe, and abrasive paste formulas), ensuring consistent filling weights and hermetic seal integrity.
Unlike low-viscosity liquids, toothpaste exhibits yield stress and shear-thinning behavior. Dosing systems must utilize rotary valve positive displacement pumps or servo-driven piston filling heads to shear the paste clean, preventing tail-stringing or dripping onto the sealing area. A contaminated sealing zone compromises package integrity, leading to micro-leaks, oxidation, and reduced product shelf life.
Utilizes advanced servo motors to drive high-precision piston cylinders, ensuring an accuracy tolerance of ≤±0.5% for volumes ranging from 5ml up to 250ml.
Integrated hot-air nozzles heat the inner tube walls while water-cooled outer jackets prevent surface distortion, ensuring clean, strong seals.
Features Siemens or Omron PLC control systems with color touchscreens for recipe memory, digital diagnostic displays, and real-time speed adjustments.
China's machinery manufacturing sector has evolved from high-volume assembly to a global hub of high-precision engineering and collaborative R&D. Sourcing soft tube filling and sealing machinery from established Chinese manufacturers like SINAEKATO offers international enterprises substantial advantages.
1. Complete Supply Chain Integration: Located in key industrial clusters like Guangdong and Jiangsu, our factories access a robust ecosystem of specialized raw materials, precision CNC machining centers, and metallurgical treatment specialists. This allows us to source premium materials (such as SS316L pharmaceutical-grade stainless steel) and perform precision milling at competitive costs.
2. OEM/ODM Customization Capabilities: Global buyers face unique regional standards and production constraints. Our on-site design department specializes in customizing mechanical footprints, designing specific tube holders for non-standard tube geometries (oval, rectangular, or micro-tubes), and configuring multi-component dosing mechanisms for multi-color or striped toothpastes.
3. International Component Standardisation: Over 80% of our machinery's critical electronic and pneumatic components are sourced from world-renowned brands (such as Festo, Siemens, SMC, Schneider, and Omron). This ensures that replacement parts are readily available worldwide, minimizing operational downtime and easing the burden on maintenance teams.
Three Decades of Engineering Excellence & Global Partnerships
Our core mission—"LET THE WORLD KNOW MADE IN CHINA"—drives us to deliver high-performance machinery and responsive technical support. We continuously invest in research and development to optimize our core technologies, including vacuum emulsification systems, high-speed filling lines, and intelligent control interfaces. Through strict quality assurance protocols and precise component testing, we ensure each system operates reliably under continuous industrial production conditions.
In addition to engineering, our longstanding commitment to the communities in which we operate guides our corporate values. We actively contribute time, skills, and resources to promote sustainable manufacturing practices and minimize the environmental impact of industrial packaging lines worldwide.
To maintain a competitive edge, global oral care brands must keep pace with emerging industry trends. The packaging sector is shifting from basic mechanical automation to intelligent, connected, and highly flexible manufacturing ecosystems. Below are the primary technological vectors driving innovation in soft tube packaging:
As consumer brands pledge to reduce virgin plastic usage, the demand for recyclable barrier laminates (like PE monomaterial and thin ABL structures) has surged. These eco-friendly materials have narrow thermal sealing windows, requiring precise temperature control. Modern sealing systems utilize fast-acting heating manifolds and cooling jackets to create strong seals without melting the thin outer barrier layers.
Zero-defect production lines require real-time quality assurance. High-speed cameras are increasingly integrated directly into filling platforms to verify tube orientation, detect correct print mark positioning, and inspect seals for paste contamination before discharge. IoT gateways also collect vibration, thermal, and motor load data to predict wear on critical parts before failures occur.
Cross-contamination prevention is crucial in cosmetic and pharmaceutical settings. Today's filling machines feature clean-in-place (CIP) and sterilize-in-place (SIP) sanitary piping, automated spray balls within the product hopper, and smooth internal flow channels. Using high-grade SS316L stainless steel with electropolished surfaces (Ra < 0.4 μm) prevents bacterial adhesion and simplifies sanitization between batch changes.
No-tool quick-change designs allow operators to swap tube holders, sealing jaws, and nozzles in under 20 minutes, maximizing line efficiency.
Our machinery meets GMP, CE, and FDA sanitary guidelines, featuring complete IQ/OQ validation protocols for pharmaceutical applications.
Our long-term collaboration with major component suppliers ensures we integrate reliable technologies into our machinery. With reliable global supply chains, we provide rapid spare parts delivery and prompt engineering support across our global markets.
A Legacy of Quality and Technological Innovation Since 1988
Engaged in the chemical machinery industry, laying the foundation for engineering research and development.
Guangzhou Sina Cosmetics Engineering Equipment Co., Ltd. was established to focus on high-end industrial machinery.
Established Hong Kong Hantao International Investment Co., Ltd. to initiate global trade operations.
Gaoyou Sina Chemical Machinery Equipment Factory was established; Guangzhou Sina changed its name to Guangzhou Sina Chemical Machinery Co., Ltd.
Established Gaoyou Sina Light Industry Machinery Equipment Factory to scale manufacturing capabilities.
Purchased 10,000 square meters of land in Gaoyou; the new processing plant, SINA EKATO CHEMICAL MACHINERY CO., LTD (GAOYOU CITY), began operations.
Established Yangzhou Hantao Chemical Machinery Co., Ltd. to optimize localized supplier networks.
Acquired Guangzhou Jingcheng Machinery, established a large exhibition center, and expanded international export channels.
Guangzhou Sina Chemical Machinery Co., Ltd. officially renamed to Guangzhou SINAEKATO Chemical Machinery Co., Ltd.
Acquired Guangzhou Suogao Machinery Equipment Co., Ltd. to incorporate advanced blending and sealing technologies.
Established SINA EKATO CHEMICAL MACHINERY CO., LTD (GAOYOU CITY) as the corporate Headquarters for Production, Sales, and After-Sale Service.
Established SINA EKATO Equipment (Jiangsu) Co., Ltd. to manage expanding foreign collaborations and joint ventures.
Partnered with European firm FLEMAC to establish Germany SINAEKATO Group Co., Ltd., strengthening European sales and service.
Partnered with Unilever South Africa for a $800,000 cosmetic project, and with a major OEM for SK-II/Shiseido cosmetics valued at $1.5M.
Partnered on a major Japanese detergent and liquid-washing products project valued at approximately $1,000,000, confirming our international engineering standards.
No single manufacturing configuration fits all facilities. Modern processing centers adapt their production setups to match local regulations, cost constraints, and volume requirements. We develop tailored solutions for three primary procurement scenarios:
High-volume facilities prioritize operational efficiency, high line speed, and minimal product loss. For these applications, we supply fully integrated, continuous-motion rotary filling systems. These lines feature automated bulk tube feeding hoppers, inline particulate blow-out systems, automated dual-stripe dosing pumps, and rotary multi-head ultrasonic sealing stations that achieve speeds up to 120-150 tubes per minute with minimal maintenance downtime.
Medicated or clinical toothpastes containing active ingredients require specialized materials to prevent corrosion. For these projects, we build machinery with product contact parts made entirely from electropolished SS316L stainless steel, coupled with hermetically sealed gas-purge enclosures. Positive pressure clean-air hoods can also be integrated over the filling station to prevent airborne particulate contamination.
Cosmetic brands often produce a wide variety of skincare lotions in smaller batches, requiring frequent format changes. For these applications, we offer semi-automatic or modular single-nozzle linear machines. These models allow for tool-less adjustments when changing tube diameters or fill volumes, minimizing downtime and optimizing small-run operational costs.
At SINAEKATO, our machinery is engineered to meet five core criteria: Stability, Reliability, Precision, and Intelligence. Choosing our processing and packaging solutions grants access to long-term technical support, custom tooling design, and responsive after-sales service. We work closely with our partners to build efficient, scalable production operations.
"Our engineering department works with your technical team to draft detailed layout blueprints, perform ribbon blending tests, and ensure our systems integrate smoothly with your upstream and downstream processing machinery."
Key Technical and Operational Insights for Packaging Engineers and Sourcing Managers
We utilize custom bottom-up filling nozzles that insert deep into the tube prior to product dispensing. The nozzle retracts upward in synchronization with the rising product level. Combined with a clean mechanical cut-off and blow-off system, this ensures air is excluded from the tube body, preventing post-seal expansion or volumetric inaccuracies.
Hot-air sealing directs high-temperature air against the inner walls of plastic or composite tubes, which are then compressed by cooling jaws. This method is cost-effective and highly reliable for standard production. Ultrasonic sealing uses high-frequency mechanical vibrations to generate localized friction welding. It is well-suited for heat-sensitive ingredients or products with potential contamination in the seal area, though it requires a higher initial investment.
Our tube holders are designed to handle both ABL (Aluminum Barrier Laminate) and PBL (Plastic Barrier Laminate) tubes. The primary operational difference lies in the sealing station configuration. Operators can adjust parameters on the HMI touchscreen to switch between the heating curves required for composite aluminum layers and pure plastic polymers.
We design specialized multi-hopper dosing manifolds fed by separate pressurized feed pumps. These manifolds keep the different paste colors separated until the final nozzle tip, ensuring distinct stripes or core structures are formed within the tube without bleeding.
By dividing control functions, pneumatic actuators handle mechanical movements (such as tube lifting and jaw clamping), while the PLC oversees sequence timing, temperature control loops, and safety interlocks. This design isolates electronic components from physical stress and simplifies troubleshooting.
We provide comprehensive operational documentation, electrical wiring schematics, and video calibration guides. For commissioning, our engineers can assist on-site with mechanical assembly, PLC fine-tuning, and operator safety training to ensure a smooth transition to full-scale production.
Engineered to Support Cosmetic, Pharmaceutical, and Food Production Lines Globally
Sina Ekato
