Introduction
E.J.S INDUSTRY CO., LTD is a Ningbo-based Chinese manufacturer specializing in screws, barrels, and related components for the plastics and rubber processing industries, including equipment used in extrusion, injection molding, blow molding, and rubber processing. The company, also listed in Chinese as 宁波艺洁斯塑料机械有限公司, has operated since 1992 and is positioned as a specialist supplier of wear-resistant and corrosion-resistant screw-barrel systems for processors and original equipment manufacturers (OEMs).
Within the plastics industry ecosystem, E.J.S occupies an important upstream niche: it does not make finished plastic products, but rather the precision parts that determine melt conveying, plasticizing, mixing, pressure generation, and throughput stability in processing machinery. Its product range includes single-screw, twin-screw, conical twin-screw, parallel twin-screw, injection molding, and rubber screw-barrel assemblies, alongside extruder parts and feed-housing components.
History and Development
E.J.S traces its origins to 1992, when it began as a small workshop focused on conical twin-screw barrel production in Ningbo, a region widely associated with China’s plastics machinery supply chain.
Over time, the company expanded from a workshop operation into a larger manufacturing base with:
- a 40,000 m² facility,
- 21 workshops,
- more than 400 employees, and
- annual output reported at around 30,500 screw barrels.
Public company materials also describe continued capacity expansion, including a new plant under construction to support rising demand from domestic and overseas customers.
Business Operations and Segments
E.J.S is primarily a component manufacturer serving plastics, rubber, and selected food-processing applications. Its business is centered on the manufacture, repair, and rebuilding of screw-barrel systems for:
- extrusion machines,
- injection molding machines,
- blow molding machines,
- rubber processing equipment.
The company also positions itself as a supplier to both OEMs and end users, indicating that it serves original equipment builders as well as processors replacing or upgrading wear parts in installed machinery.
Products and Technologies
E.J.S’s catalog is built around screw-barrel systems designed for different processing tasks and polymer families.
Main product lines
- Extruder screw barrels
- Injection molding screw barrels
- Rubber screw barrels
- Single screw barrels
- Twin screw barrels
- Conical twin screw barrels
- Parallel twin screw barrels
- Screw elements
- Feed housings / barrels
- Extruder parts
Processing capability
According to company materials, the products are used for materials such as:
- PE
- PP
- Rigid PVC pipe and sheet
- LDPE
- HDPE
- Recycled plastics
- Rubber profiles
- Food-related processing applications
The company also states that its screws and barrels are used with fillers such as:
- glass fiber
- wood
- CaCO₃
- Mg(OH)₂
Surface and wear technologies
E.J.S says it manufactures products in several material and surface-treatment configurations, including:
- bimetallic
- nitrided
- hard chrome-plated
- through-hardened
These treatments are used in the screw-and-barrel sector to improve resistance to abrasion, corrosion, and long-term wear, especially in applications involving reinforced polymers, recycled feedstocks, or chemically aggressive compounds.
Applications and End Markets
E.J.S serves a broad set of downstream processing applications tied to thermoplastics and rubber conversion. Its products are relevant to:
- pipe and sheet extrusion
- injection molding
- rubber profile production
- compound processing
- recycling-oriented extrusion
- food-contact or food-related processing applications
The company’s market listings indicate exports to regions including:
- North America
- South America
- Eastern Europe
- Southeast Asia
- Africa
- Oceania
- the Middle East
- Western Europe
- South Asia
- Domestic China
Global Presence and Market Position
E.J.S presents itself as an export-oriented specialist supplier with customers in more than 50 countries, according to company materials.
The firm’s publicly stated overseas customer base includes markets such as the United States, Brazil, Mexico, Germany, Italy, Russia, Turkey, and the United Kingdom. It also appears in international trade-show and business-directory listings, including K 2025, NPE 2024, and ChinaPlas exhibitor information, which suggests continued participation in global plastics-industry channels.
Within the market, E.J.S is best understood as a specialized mid-sized industrial supplier rather than a diversified plastics machinery conglomerate. Its competitive position appears to rest on:
- long operating history,
- focused technical specialization,
- broad screw-barrel variants,
- export experience,
- and service for both replacement and new-equipment markets.
Sustainability and Environmental Initiatives
Publicly available materials reviewed here do not describe a detailed corporate sustainability strategy, emissions inventory, or formal environmental targets. However, the company’s product focus on rebuilding, repairing, and reconditioning screws and barrels can be relevant to resource efficiency because it may extend component life and reduce premature replacement demand.
The company also reports applications in recycled plastics processing, which aligns its core business with a major industry trend toward circular-material use in extrusion and compounding.
Financial Performance and Economic Impact
E.J.S has published limited financial information in its marketing materials. One company page states that in 2020 it produced twin screw barrels with sales of US$39 million and single screw barrels of US$7.8 million, alongside annual production of about 30,500 pieces.
Separately, a company profile page also lists a figure of US$7.8 million, which appears to refer to one product line rather than total revenue. Because the available sources do not provide audited financial statements, these figures should be treated as company-reported sales data, not independently verified consolidated revenue.
Leadership and Corporate Governance
Publicly accessible sources identify the company as E.J.S INDUSTRY CO., LTD based in Ningbo, Zhejiang, China, with an address on Dongdu Road, Haishu District or nearby company-address listings tied to its Ningbo operations.
The company’s Chinese exhibitor listing on ChinaPlasOnline identifies it as a “专精特新企业”—a Chinese government-recognized designation for specialized, refined, distinctive, and innovative enterprises. That designation suggests official recognition of technical specialization, although the listing available here does not provide the full underlying certification details.
Innovations and Future Outlook
E.J.S’s technical direction appears to be shaped by the same forces affecting the broader screw-barrel market:
- higher wear demands from recycled and filled compounds,
- demand for longer service life and lower maintenance frequency,
- continued investment in bimetallic and nitrided surfaces,
- and adaptation to diverse polymer-processing lines.
The company’s continued exhibition activity and stated plant expansion indicate an effort to sustain growth through export markets and capacity addition.
Summary
E.J.S INDUSTRY CO., LTD is a long-established Ningbo screw-barrel manufacturer serving the plastics and rubber processing industries with a concentrated portfolio of extrusion, injection molding, and rubber-processing components. Its role in the industry is that of a specialized upstream supplier whose products directly affect processing performance, durability, and maintenance economics in plastic manufacturing lines.
References
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CPS+ eMarketplace. (n.d.). E.J.S INDUSTRY CO., LTDE.J.S INDUSTRY CO., LTD. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1005823Link