Introduction
Zhejiang Jinteng Machinery Manufacture Co., Ltd. (浙江金腾机械制造有限公司), also known as JT Screw, is a Chinese manufacturer specializing in screws, barrels, extrusion components, and related plastics-processing equipment for the plastics and rubber industries. The company is based in Zhoushan, Zhejiang Province, a region closely associated with China’s plastics machinery supply chain, and it has built its business around precision manufacturing for injection molding, single-screw extrusion, twin-screw extrusion, and supporting production lines.
Jinteng positions itself as a specialized supplier of high-performance screw and barrel systems, including bimetallic products and application-specific components for film, pipe, profile, sheet, cleaning, and foam extrusion lines. Company materials describe a manufacturing model built on precision machining, CNC equipment, nitriding, quenching, grinding, and alloy surfacing, with quality control organized around the ISO 9001 management system.
Over more than two decades of development, the company has expanded from a screw-and-barrel manufacturer into a broader plastics-processing equipment supplier with export activity and an international distribution footprint. Its profile reflects the role of specialized component makers in the plastics industry, where performance, wear resistance, thermal stability, and customization strongly influence processing efficiency and end-product quality.
History and Development
Jinteng’s company materials state that it was established in 1997, while some third-party business databases and trade listings give dates in 1998, 2001, or 2003; the most consistent official source identifies 1997 as the founding year. The company is located in Jintang Town, Dinghai District, Zhoushan, an area that has become a notable cluster for plastics machinery manufacturing and related supply-chain activity.
Key development milestones include:
- Founding and specialization in screws and barrels for plastics and rubber machinery, with a focus on machining capability and process control.
- ISO 9001 certification and implementation of standardized quality management, which the company says it adopted in 2008.
- Factory expansion and product broadening, including a reported relocation in 2023 to a larger site and an expanded scope into intelligent hollow-forming machinery and complete automation equipment for plastics extrusion, according to Chinese-language company materials.
These developments suggest a progression from component manufacturing toward a more integrated equipment offering, reflecting broader industry demand for bundled process solutions rather than standalone parts.
Business Operations and Segments
Jinteng’s core business is the design, manufacture, and export of plastic-machine screw and barrel systems and related extrusion machinery. Company descriptions indicate that it serves both domestic and international markets through direct sales and distributor-style channels.
Its operations can be grouped into three main areas:
- Core components
- Screws and barrels for injection molding machines
- Screws and barrels for single-screw, conical twin-screw, and parallel twin-screw extruders
- Bimetallic wear-resistant components for demanding processing applications
- Extrusion machinery and production lines
- Single-screw extruders
- Twin-screw extruders
- Pipe and profile extrusion lines
- Sheet and plate extrusion lines
- PVC, PP, PE, XPS, and EPS foam extrusion lines
- Auxiliary and supporting equipment
The company describes its business as combining manufacturing, engineering support, and export services, with customer contacts and product listings appearing on several international trade platforms.
Products and Technologies
Jinteng’s product portfolio centers on screw and barrel technology, the heart of many plastics-processing systems. In extrusion and injection molding, the screw determines material conveying, melting, mixing, pressure generation, and throughput, while the barrel provides the controlled thermal and wear environment required for stable processing.
Main product categories
- Injection molding screws and barrels for machines ranging from 30 g to 30,000 g clamping or shot-capacity classes, according to company materials.
- Single-screw extruder screws and barrels with diameters from 15 mm to 300 mm.
- Conical twin-screw systems such as 45/90 mm to 132/276 mm configurations.
- Parallel twin-screw systems from 45/2 to 300/2 diameter classes.
- Bimetallic screw and barrel assemblies designed for abrasive or corrosive applications.
Technical capabilities
Company descriptions indicate that manufacturing uses:
- Quenching and tempering
- Nitriding
- Precision grinding
- Alloy spraying / bimetal surfacing
- Polishing
These processes are used to improve surface hardness, wear resistance, corrosion resistance, and dimensional accuracy, which are critical for service life and melt consistency in processing engineering plastics, filled compounds, fluoroplastics, and other demanding materials.
The company also highlights use cases in recyclable-material processing and calcium-powder-filled LDPE blown film, indicating experience with formulations that place high mechanical and abrasion stress on screw assemblies.
Applications and End Markets
Jinteng’s products are used in a range of plastics and rubber processing applications, including:
- Injection molding
- Blown film production
- Pipe and profile extrusion
- Sheet and plate extrusion
- Foam extrusion
- Cleaning and recycling lines
- Rubber machinery
- Chemical weaving machinery
Its equipment and components are relevant to manufacturers producing:
- Packaging materials
- Building and construction products
- Industrial profiles and pipes
- Foamed insulation materials
- Recycled polymer feedstock and reprocessing lines
The company’s product scope indicates a customer base spanning processors that require both standard and customized screw-barrel geometries, especially where throughput stability and wear resistance are important to output quality.
Global Presence and Market Position
Jinteng presents itself as a specialist manufacturer rather than a broad-based plastics conglomerate. Company materials describe it as a major professional production base and supporting center for screws and barrels in China, and trade-platform listings indicate export activity into multiple regions.
Reported international markets include customers or distribution relationships in Germany, Brazil, Russia, Korea, Pakistan, India, and Bangladesh, according to a company sales profile. Company materials also state that its distribution and service network covers 58 countries, with two overseas subsidiaries mentioned in one company source.
In industry context, Jinteng operates in a segment characterized by:
- Strong dependence on precision machining capability
- Customization by machine type and resin formulation
- Intense competition among Chinese and international component makers
- Demand linked to the capital spending cycles of plastics processors
Its market position is best understood as that of a specialized, export-oriented supplier embedded in the machinery supply chain, particularly for screw-and-barrel systems used in extrusion and injection applications.
Sustainability and Environmental Initiatives
Jinteng’s published materials do not provide a detailed corporate sustainability report, but several product categories are relevant to circular-economy applications. These include PE, PP, and PET cleaning lines, as well as equipment used in recycling-oriented extrusion systems and material reprocessing.
From an industry standpoint, screw and barrel makers increasingly respond to three environmental pressures:
- Higher use of recycled feedstocks
- Processing of filled and contaminated polymers
- Greater demand for energy-efficient and durable extrusion systems
Jinteng’s emphasis on bimetallic wear resistance and process durability suggests a focus on extending service life and reducing downtime, which can indirectly support material efficiency and maintenance-related resource savings. The company’s public materials, however, do not disclose formal carbon targets, lifecycle assessments, or detailed emissions-reduction metrics.
Financial Performance and Economic Impact
No audited financial statements or segment revenue disclosures were identified in the provided sources. Publicly available business profiles indicate a mid-sized industrial manufacturer with a workforce of roughly 120 to 150+ employees, depending on the source and reporting date.
Its economic impact is primarily industrial and regional:
- Support for the Zhoushan plastics machinery cluster
- Employment in precision manufacturing and export services
- Supply of components used by plastics processors in multiple downstream sectors
The company’s role is significant because screw-and-barrel quality directly affects the productivity of extrusion and injection systems, influencing resin utilization, machine uptime, and product consistency across customer plants.
Leadership and Corporate Governance
Available public sources identify He Qianhui as the legal representative in Chinese business registry-style data. Other trade and social-profile sources identify Joy Jiang in export sales or international business roles.
The company describes its management as combining rich design experience with first-class management, but it does not publicly disclose a detailed board structure or formal governance framework in the available sources. As with many privately held manufacturing firms, governance information is limited compared with listed corporations.
Innovations and Future Outlook
Jinteng’s innovation pathway appears centered on incremental engineering rather than disruptive product redefinition. The company emphasizes:
- Customization of screw geometry
- Wear-resistant bimetallic construction
- Precision finishing and heat treatment
- Application-specific extrusion line solutions
Its stated expansion into intelligent plastic hollow-forming machinery and automation-oriented complete equipment suggests a move toward higher-value systems integration. If implemented at scale, this strategy could position the company more strongly in markets where customers seek integrated production lines, service support, and process optimization rather than individual replacement parts.
Future performance will likely depend on:
- Demand from plastic recycling and reprocessing
- Growth in engineering plastics and filled-compound applications
- Continued investment in machining accuracy and surface engineering
- Competitive pressure from domestic and international screw-barrel suppliers
Summary
Zhejiang Jinteng Machinery Manufacture Co., Ltd. is a specialized Chinese plastics-machinery supplier focused on screws, barrels, and related extrusion equipment. Built in Zhoushan’s industrial ecosystem, it has developed a business model based on precision manufacturing, wear-resistant component design, and export-oriented service, with applications across injection molding, extrusion, foam, pipe, sheet, recycling, and rubber processing.
References
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CPS+ eMarketplace. (n.d.). ZHEJIANG JINTENG MACHINERY MANUFACTURE CO., LTD.ZHEJIANG JINTENG MACHINERY MANUFACTURE CO., LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1001163Link