Introduction
SINORAY (China) Rubber & Plastic Technology Co., Ltd. (Chinese: 浙江华策橡塑科技有限公司) is a Zhejiang-based manufacturer of rubber and plastic products focused on customized engineered components for industrial and transportation applications. The company says it was founded in 2017 and is located in Lingang Industrial Park, Meixi Town, Anji County, Huzhou, Zhejiang, while also describing itself as the successor to the earlier Hangzhou Red Star Rubber Product Factory, founded in 1999.
The company positions itself as a national high-tech enterprise integrating research and development, production, and sales, with product activity centered on rubber shock absorbers, foot pads, seals, rubber dummies, connectors, and related molded and fabricated parts. Its reported customer sectors include rail transit, automobiles, subways, ships, mechanical equipment, and power systems, indicating a business model anchored in industrial rubber components rather than consumer plastics.
History and Development
The company’s development narrative combines a long operating history with a more recent corporate restructuring. SINORAY states that its origins date to 1999, when it operated as Hangzhou Red Star Rubber Product Factory, and that the present company structure was established in 2017.
A second milestone is the build-out of manufacturing capacity in Zhejiang. The company reports a 30,000-square-meter production workshop and a workforce of 108 employees, which suggests a medium-sized specialty producer with in-house fabrication capabilities.
A third milestone is its accumulation of technical credentials. By 2022, the company said it had obtained 12 patented technologies and had been recognized as a Huzhou Municipal R&D Center, a National High-tech Enterprise, and a Zhejiang Innovative SME, among other designations.
Business Operations and Capabilities
SINORAY describes its core business as the custom development of non-standard rubber products, including product definition, mold design, mold manufacturing, formulation design, raw material preparation, and performance testing. This indicates an integrated manufacturing model in which engineering support is part of the commercial offering.
Its reported manufacturing equipment includes:
- mixer and upstream equipment
- preforming machine
- extruder
- flat vulcanizer
- automatic rubber injection machine
These systems are consistent with a plant capable of producing both molded and extruded rubber parts, as well as assemblies requiring controlled curing and dimensional consistency. The company also says it works with customer-specific requirements for shape, material, and hardness, which is important for vibration isolation, sealing, and safety-related industrial parts.
Products and Technologies
The company’s product range centers on rubber and rubber-plastic components used in demanding mechanical environments. Reported product categories include:
- rubber shock absorbers
- rubber foot pads
- seals
- rubber dummies
- rubber connectors
- AGV tray rubber pads
- silicone products
- rubber simulated human units for seat-belt testing
- chair rubber connectors
- agricultural machine floor mats
The emphasis on vibration damping, sealing, and testing accessories indicates a focus on functional performance rather than commodity rubber goods. The company also states that it can develop products with different formulations and hardness levels, which is a critical capability in rubber engineering because load-bearing, damping, thermal resistance, and durability vary significantly by compound design.
SINORAY says its products have passed RoHS testing, and that it has developed stable formulations using accumulated design and production experience. That is relevant for industrial customers requiring compliance and repeatable performance in regulated supply chains.
Applications and End Markets
The company identifies several principal end markets for its products:
- rail transit
- automobiles
- subways
- ships
- mechanical equipment
- power systems
A more specific market reference from third-party business content says its rubber products are used in sectors such as rail transit, automobiles, subways, and ships, which aligns broadly with the company’s own description.
These end markets are typical of suppliers of engineered elastomer parts, where product value depends on durability, vibration control, and environmental resistance. The range also suggests exposure to industrial procurement cycles, transport infrastructure investment, and OEM supply relationships.
Global Presence and Market Position
SINORAY states that its products sell in both domestic and overseas markets, with exports reportedly concentrated in the United States, Canada, Europe, Britain, and Japan. This points to a business with international sales exposure, although the available information does not provide audited export data or market-share figures.
The company also appears under related branding in online supplier listings and product platforms, including a Chinaplas eMarketplace exhibitor entry and other manufacturer directories. Those listings support its visibility within the rubber and plastics trade ecosystem, but they do not by themselves establish scale relative to larger multinational compounders or component suppliers.
Sustainability, Quality, and Compliance
SINORAY says it has obtained ISO 9001, ISO 14001, and ISO 45001 certifications, covering quality management, environmental management, and occupational health and safety, respectively. For an industrial rubber manufacturer, these certifications are relevant because they signal process discipline, environmental controls, and workplace management.
The company also states that it has long focused on safe production and received a third-level enterprise in safety production standardization honor in 2022. In addition, its products are described as passing RoHS requirements, which is relevant to restricted-substance compliance in electronics-adjacent and export-oriented supply chains.
Financial Performance and Economic Impact
No audited financial statements, revenue figures, or profit data were provided in the available sources. As a result, the company’s financial scale cannot be independently verified from the materials reviewed.
Its economic impact is more clearly visible at the regional level through manufacturing employment, workshop capacity, export sales, and supplier relationships in transportation and industrial equipment chains. The company’s reported role as a supplier to major industrial applications suggests that it contributes to localized rubber-processing capability in Zhejiang’s manufacturing base.
Leadership and Corporate Governance
Publicly available sources in the provided material do not offer a detailed management profile, board structure, or ownership breakdown. The company does state that it operates as a professional enterprise integrating R&D, production, and sales, which implies a vertically coordinated management structure for engineering-led manufacturing.
Innovations and Future Outlook
SINORAY’s reported innovation path rests on three pillars: custom engineering, patented technologies, and application-specific rubber formulation. Its focus on non-standard products is strategically significant because it differentiates the company from mass-market rubber producers that compete primarily on price.
Its future prospects will likely depend on:
- continued demand from transportation and industrial equipment sectors
- sustained investment in R&D and tooling
- the ability to meet evolving environmental and compliance requirements
- export-market resilience in North America, Europe, and Asia
The company’s combination of molded-rubber processing, extrusion capability, and custom formulation places it in the segment of specialized rubber manufacturers that serve technical applications where material performance matters more than product standardization.
References
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CPS+ eMarketplace. (n.d.). SINORAY(CHINA) RUBBER & PLASTIC TECHNOLOGY CO.,LTDSINORAY(CHINA) RUBBER & PLASTIC TECHNOLOGY CO.,LTD. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1007001Link