Introduction
LIUZHOU SANSONG AUTOMATION TECHNOLOGY CO., LTD. (柳州三松自动化技术有限公司) is a Chinese industrial equipment company founded in 2013 and based in Liuzhou, Guangxi, with operations spanning industrial automation and plastic container blow molding. The company is known for developing and manufacturing one-step injection stretch blow molding (ISBM) machines, molds, and automation-related equipment for manufacturing customers, while also maintaining a presence in robotic welding and automated production-line integration.
Within the plastics industry, Sansong occupies a specialized niche centered on PET and multi-material container forming, including bottles and packaging containers for beverages, baby products, pharmaceuticals, cosmetics, and related applications. Its technical profile emphasizes integrated machine-and-mold solutions, automation-oriented process design, and support for customized manufacturing systems, which places it at the intersection of plastics processing and factory automation.
The company’s development reflects two parallel tracks: first, a move from general industrial automation toward robotic welding and production-line integration for the manufacturing sector; and second, the later establishment of a dedicated bottle-blowing machine division and the SASON-branded ISBM product line. Sansong reports quality-management certification, intellectual-property filings, and recognition as a technology-oriented enterprise in Guangxi, indicating a strategy built on engineering capability rather than mass-scale commodity manufacturing.
History and Development
Sansong was founded in 2013 in Liuzhou, a major industrial city in Guangxi that has a strong manufacturing base in automobiles, machinery, and supporting equipment. Early company information describes a focus on non-standard industrial automation, including industrial robots, welding fixtures, inspection tooling, and automated line solutions for manufacturing customers.
A second milestone was the company’s expansion into robotic welding systems and automated production lines, including spot-welding and riveting lines, together with export activity in overseas markets. Publicly available profiles also indicate that Sansong built an internal brand of robot-related products and worked with major industrial customers in the Liuzhou manufacturing ecosystem.
A third development phase involved entry into one-step ISBM machine manufacturing. Company materials state that Sansong created its SASON-branded ISBM line and strengthened its bottle-blowing business with experienced engineers joining the division in 2023. This transition broadened the company from automation systems toward plastics processing equipment, giving it a more direct role in container production technology.
Business Operations and Segments
Sansong’s business can be understood in two main segments:
- Industrial automation and welding systems
- Plastic container blow-molding equipment
The industrial automation segment covers industrial robots, welding workstations, production-line integration, flexible tooling fixtures, inspection tools, and machining services. This segment serves manufacturing industries such as automotive and construction machinery, where repeatable positioning, welding precision, and line reliability are essential.
The plastics-equipment segment centers on one-step ISBM machines and molds for container production. The company’s materials describe applications for sports bottles, baby bottles, food and beverage packaging, pharmaceutical containers, and cosmetic packaging. This business links design, process engineering, and machine-build capability with downstream container-forming requirements.
Products and Technologies
Sansong’s product portfolio includes the following core categories:
- One-step injection stretch blow molding (ISBM) machines
- Molds for bottle and container production
- Industrial robots and robot-related components
- Automated welding and assembly lines
- Flexible fixtures, inspection tools, and machining services
The company’s ISBM machines are designed for one-step forming, combining injection, stretch, and blow stages in a coordinated process. Company materials describe a machine structure using a single-cylinder injection system and a high-efficiency hydraulic clamping structure, aimed at production efficiency and product consistency. Listed product descriptions also indicate compatibility with materials such as PET, PETG, Tritan, PP, PC, PPSU, AS, and PS, which suggests an emphasis on multi-material container production rather than a single resin family.
Technical listings associated with the company show configurations marketed for high output, energy efficiency, and PLC-based automation, including Delta-branded control components in some product descriptions. Reported applications include containers up to several thousand milliliters and production rates expressed in bottles per hour, though these figures vary by model and listing.
For industrial automation, Sansong has promoted robotic spot-welding lines, robotic riveting lines, robotic workstations, robot positioners, and robot walking rails. This indicates a capability base in machine integration, fixture design, and process customization, which also supports its plastics machinery business through the same engineering culture of automation and system control.
Applications and End Markets
Sansong’s plastics equipment is used in packaging and specialty container markets, including:
- Sports drinking bottles
- Baby feeding bottles
- Food and beverage containers
- Pharmaceutical packaging
- Cosmetic containers
These end markets generally require combinations of dimensional precision, surface quality, material compatibility, and production repeatability. ISBM systems are particularly relevant where manufacturers need integrated forming solutions for containers with more demanding appearance or functional requirements than conventional commodity packaging.
In its automation business, Sansong serves industries such as:
- Automotive manufacturing
- Construction machinery
- General manufacturing automation
The company’s industrial customer base and equipment portfolio suggest a role as both a machine builder and systems integrator, especially in plant-level automation projects requiring custom fixtures and line design.
Global Presence and Market Position
Sansong is a privately held company headquartered in Liuzhou, Guangxi, and publicly available business profiles indicate a workforce and scale typical of a specialized small-to-medium industrial equipment manufacturer. Company information also suggests a production footprint of several thousand square meters, with plant and office operations concentrated in Liuzhou.
The company’s market position is best understood as regional and niche-oriented rather than mass-market. In China’s broad plastics machinery sector, Sansong appears focused on specialized ISBM systems and tailored automation projects rather than high-volume commodity blow-molding platforms. Its listings and trade-show presence indicate commercial activity beyond China, and public sources note export-related business and overseas market references, including Southeast Asia.
The company has also appeared in CHINAPLAS exhibitor information, signaling participation in a major plastics-industry trade platform and suggesting engagement with both domestic and export-facing customers.
Sustainability and Environmental Initiatives
Publicly available information on Sansong does not indicate a formal sustainability report or quantified emissions program. However, its ISBM product positioning around high-efficiency and low-energy equipment implies attention to operating efficiency in plastics processing.
In plastics machinery, energy use, material utilization, and production yield are central environmental variables, and machine designs that improve output consistency or reduce scrap can have indirect sustainability benefits. Sansong’s automation background may also support reduced manual rework and improved process control, although the company has not publicly published detailed environmental metrics in the sources reviewed.
Financial Performance and Economic Impact
Sansong does not appear to publish detailed financial statements in the available sources. As a privately held manufacturer, its revenue, margins, and export mix are not publicly disclosed in a comprehensive audited form.
Its economic impact is more visible through employment, equipment supply, and industrial support services in Liuzhou’s manufacturing cluster. The company’s relationships with major regional manufacturers and its role in equipment supply for automotive and automation-related projects indicate that it contributes to the local industrial ecosystem through engineering services, capital equipment, and specialized manufacturing capability.
Leadership and Corporate Governance
Public sources identify Sansong as a technology-oriented enterprise with certifications and intellectual-property assets, including ISO 9001:2015 quality management certification and corporate intellectual-property management system certification. Publicly cited patent counts differ slightly across sources, but both indicate a meaningful portfolio of invention and utility-model patents.
The company also reports recognition as a Liuzhou Intelligent Welding Engineering Technology Research Center and as a national innovation company, while a 2024 Guangxi list identifies it as a specialized and sophisticated SME enterprise category in China’s industrial policy framework. These designations suggest that Sansong’s governance and strategy are closely tied to technical development, process capability, and regional innovation policy.
Innovations and Future Outlook
Sansong’s innovation profile is anchored in two technical domains: industrial automation integration and one-step ISBM equipment. The company’s development of SASON-branded ISBM machines, combined with experience in robots, fixtures, and automated line construction, gives it a diversified engineering base that can support customized equipment development.
Future opportunities likely depend on several factors:
- Continued demand for lightweight and specialty plastic packaging
- Expansion of automation in manufacturing
- Demand for multi-material container solutions
- Export growth in emerging markets
- Ongoing competition from larger plastics machinery manufacturers and automation suppliers
Company materials and product listings suggest that Sansong is positioning itself around customization, process integration, and application-specific machine design rather than standardized volume manufacturing. That positioning may support resilience in niche markets, particularly where customers need a combination of automation know-how and plastics forming expertise.
References
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CPS+ eMarketplace. (n.d.). LIUZHOU SANSONG AUTOMATION TECHNOLOGY CO., LTD.LIUZHOU SANSONG AUTOMATION TECHNOLOGY CO., LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1026536Link