CHANGZHOU LONGLONGSHENG WARP KNITTING MACHINERY CO.,LTD.

Introduction

Changzhou Longlongsheng Warp Knitting Machinery Co., Ltd. (Chinese: 常州市隆龙升经编机械有限公司) is a Chinese manufacturer of warp-knitting machinery, with operations based in Changzhou, Jiangsu Province. The company designs and produces equipment for manufacturing knitted nets, mesh fabrics, and selected technical textiles, including agricultural, fishing, safety, protective, sports, shading, anti-insect, and mosquito nets.

Longlongsheng occupies a specialized position within the plastics and textile-processing machinery ecosystem. Its equipment is used to convert synthetic yarns and polymer-based filaments—commonly polypropylene, polyethylene, polyester, and related materials—into structured netting and mesh products. The company’s principal focus is on Raschel warp-knitting systems, including single- and double-needle-bed machines, associated warping equipment, and auxiliary production systems.

Company and exhibition profiles identify Longlongsheng as an established manufacturer with roots in the 1990s, while commercial directories commonly give 1998 as the company’s establishment year. Its product range has expanded from conventional net-making machinery to equipment serving agricultural, construction, packaging, sporting, household, and other technical-textile applications.

History and Development

Longlongsheng developed in Changzhou, a major industrial center in Jiangsu with established capabilities in machinery manufacturing, engineering, and textile production. The company’s development can be summarized through several milestones:

• 1990s establishment: Company profiles variously identify the business as founded in 1995 or 1998. The later date is frequently used in commercial directories, while exhibition materials have also described the enterprise as originating in 1995.
• Expansion into Raschel machinery: The company built its principal product identity around Raschel warp-knitting machines and knotless net-making systems, moving beyond general textile machinery into specialized net production.
• Broadening of application coverage: Its portfolio expanded to include equipment for shade nets, fishing nets, agricultural nets, safety nets, sports nets, mosquito nets, packaging nets, three-dimensional fabrics, bags, belts, blankets, lace, and related mesh products.
• International exhibition activity: Longlongsheng has promoted its equipment through international machinery and plastics-related trade exhibitions, including events in Europe, Africa, and Asia. Such participation reflects the importance of overseas distributors and project-based equipment sales in the textile-machinery industry.

Business Operations and Segments

Longlongsheng’s business is centered on the design, manufacture, sale, and servicing of warp-knitting machinery. Its activities may be grouped into the following areas:

The company operates in a capital-goods segment in which customer requirements are often determined by yarn type, product width, mesh geometry, production speed, automation level, and the intended end market. A machinery supplier must therefore provide more than a standalone machine; it must generally support process configuration, pattern or structure selection, commissioning, and operator training.

Commercial descriptions indicate that Longlongsheng supplies customers internationally, with machines reported in markets across Asia, Europe, Africa, and South America. Its presence at overseas exhibitions also suggests a sales model combining direct export, regional representation, and application-specific customer engagement.

Products and Technologies

Warp-knitting machines

Warp knitting forms fabric by feeding multiple yarns longitudinally into the knitting zone, where guide bars and needles create intermeshed loops. Compared with weft knitting, warp knitting is well suited to continuous production of stable, lightweight, and dimensionally controlled mesh structures.

Longlongsheng’s portfolio includes:

• Single-needle-bed warp-knitting machines
• Double-needle-bed warp-knitting machines
• Raschel knitting machines
• Knotless net-making machines
• Jacquard and patterned warp-knitting systems
• Machines for three-dimensional and spacer-type structures
• Equipment for bags, belts, lace, and other mesh products

Company materials describe more than 40 machine variants in certain Raschel and knotless-machine categories and more than 50 types across the broader portfolio.

Net-making equipment

Net-making machinery represents the company’s main specialization. Depending on machine configuration, the equipment can produce open or relatively dense structures, different mesh sizes, and products with varying strength, elasticity, and surface geometry.

Typical process variables include:

• Yarn count and polymer type
• Number of guide bars
• Needle-bed configuration
• Mesh opening and pattern
• Fabric width
• Take-up and winding parameters
• Production speed and tension control

The equipment can be configured for synthetic yarns used in agricultural and industrial netting. These may include monofilaments, multifilaments, tapes, and other polymer-based yarn forms, although the suitable material depends on the machine design and product specification.

Warping and auxiliary equipment

Warp preparation is fundamental to consistent warp-knitting production. Warping equipment arranges yarns onto beams or other feeding systems with controlled tension and alignment before knitting begins. Longlongsheng’s listed product categories include warping machines, beam systems, extrusion systems, and auxiliary equipment.

Such equipment supports production-line integration by helping manufacturers manage:

• Yarn preparation and beam formation
• Controlled yarn feeding
• Tension uniformity
• Material handling
• Fabric take-up and winding
• Product changeovers and line configuration

Process capability and technical specialization

The company’s technical specialization lies less in commodity polymer production than in the transformation stage between polymer yarn and finished technical textile. Its machinery is intended to provide repeatable mesh geometry, continuous operation, and compatibility with multiple product formats.

Net products made on this class of machinery may require different balances of:

• Tensile strength
• Tear resistance
• Knot or loop stability
• UV durability
• Flexibility
• Air permeability
• Light transmission
• Dimensional stability

The final performance of a net depends not only on the machine but also on polymer selection, additives, yarn construction, knitting parameters, finishing, and downstream conversion.

Applications and End Markets

Longlongsheng’s machinery serves a wide range of end markets in which lightweight polymer nets and mesh textiles are used.

Agriculture and horticulture

Agricultural and horticultural nets are used for shading, crop protection, insect control, hail protection, wind reduction, and plant support. Machinery for this market must accommodate products with controlled openings and consistent widths, since mesh geometry influences light transmission, ventilation, and pest exclusion.

Fishing and aquaculture

Fishing nets and related aquaculture products require controlled strength, flexibility, and resistance to water exposure. Knotless structures can reduce snagging and provide a uniform surface, although product performance remains dependent on yarn properties, construction, and operating conditions.

Construction and occupational safety

Safety and protective nets are used in construction, maintenance, industrial work, and temporary site protection. These applications place emphasis on mechanical integrity, tear resistance, reliable mesh dimensions, and compliance with applicable safety requirements.

Sports and recreation

Sports nets are used in football, tennis, golf, volleyball, athletic facilities, and other recreational settings. Depending on the application, manufacturers may prioritize impact absorption, rebound behavior, color stability, low weight, and resistance to outdoor exposure.

Packaging and consumer products

Longlongsheng’s machinery portfolio also covers net bags, vegetable bags, bath nets, belts, blankets, lace, and other mesh articles. These products illustrate the versatility of warp knitting as a process for producing flexible structures from polymeric and textile yarns.

Industrial and technical textiles

Industrial mesh can be used for filtration, separation, containment, reinforcement, ventilation, and material handling. The specific suitability of a knitted structure depends on the required opening size, chemical environment, temperature, load, and exposure to ultraviolet radiation.

Global Presence and Market Position

Longlongsheng is headquartered in Changzhou, Jiangsu, and has marketed its machines to international customers through multilingual commercial channels, trade exhibitions, and export-oriented sales operations.

Its competitive position is associated with specialization rather than a broad portfolio spanning every category of textile machinery. The company differentiates its offering through:

• Concentration on Raschel and net-making machinery
• A wide range of net applications
• Equipment customization for different yarns and product structures
• Integration of machine and auxiliary-equipment categories
• Overseas sales and technical support

The company competes in an international machinery market that includes specialized Chinese manufacturers as well as established European and Asian producers. Purchasing decisions in this market are influenced by machine price, productivity, energy consumption, automation, spare-parts availability, local service, product quality, and the supplier’s ability to configure a complete production line.

Public commercial listings report an international installed base exceeding 1,000 machines, although such figures are company- or directory-based industry claims rather than independently audited market statistics. No reliable public evidence establishes a precise global market share for Longlongsheng.

Research and Development

Research and development at Longlongsheng is directed primarily toward application-specific machinery and the adaptation of warp-knitting technology to different net structures. The company describes its activities as including research, design, manufacturing, sales, and service.

Relevant development priorities in this machinery segment include:

• Higher production stability and operating speed
• Improved yarn-tension control
• Wider product formats
• Greater flexibility in mesh design
• Reduced setup and changeover time
• Compatibility with different synthetic yarns
• Improved automation and monitoring
• Integration with warping and downstream systems

The most technically demanding development work often concerns the interaction among needles, guide bars, yarn paths, take-up systems, and fabric tension. Small deviations in these areas can affect mesh uniformity, fabric width, edge quality, and production efficiency.

Sustainability and Environmental Considerations

Longlongsheng’s equipment is connected to sustainability primarily through the production of durable polymer-based technical textiles rather than through the manufacture of polymers themselves. Net products can support resource efficiency in agriculture, crop protection, aquaculture, logistics, construction, and other sectors by enabling lightweight protection and containment solutions.

Environmental considerations associated with the company’s machinery and its customers include:

• Electricity consumption during continuous machine operation
• Material efficiency and production scrap
• Use of recycled or lower-impact polymer yarns
• Product service life and resistance to ultraviolet degradation
• Recyclability of finished netting
• Waste management at the end of product life
• Emissions and resource use associated with upstream polymer production

Synthetic netting can provide long service life and functional benefits, but it also creates end-of-life challenges because many products combine polymers, colorants, stabilizers, coatings, and contaminants. Recycling is easier when products use a single polymer family and can be collected in sufficient volumes. In practice, recovery systems for agricultural, fishing, construction, and consumer nets vary considerably by region.

For machinery manufacturers, sustainability also involves reducing idle time, improving process yield, optimizing drive systems, and supporting longer equipment life through maintenance and replacement parts. The environmental outcome therefore depends on both machine efficiency and the materials and operating practices selected by the customer.

Financial Performance and Economic Impact

Publicly accessible commercial directories have published estimates of approximately 150 employees and annual turnover of about US$15 million, but these figures are directory-reported estimates rather than audited financial disclosures. A detailed public record of revenue, profitability, capital expenditure, or geographic sales distribution is not available through the cited company and exhibition profiles.

The company contributes to the regional machinery economy through:

• Engineering and machine assembly
• Metalworking and component procurement
• Electrical and control-system integration
• Export logistics
• Installation and technical service
• Support for downstream net and technical-textile manufacturers

Its broader economic significance derives from supplying production equipment to manufacturers that serve agriculture, fisheries, construction, packaging, sports, and industrial markets. Machinery investment in these sectors can improve local conversion capacity and reduce dependence on imported finished net products.

Quality Management and Certifications

Warp-knitting machinery quality depends on mechanical precision, component reliability, electrical safety, control-system stability, and the consistency of machine commissioning. Customers typically assess suppliers through operating references, sample production, factory acceptance testing, documentation, spare-parts support, and after-sales response.

Company and directory materials identify Longlongsheng as a manufacturer and exporter of warp-knitting equipment, but the cited public profiles do not provide a complete, independently verifiable list of management-system certifications or product-specific conformity approvals. Certification requirements may vary according to the destination market, machine configuration, electrical standard, and customer procurement rules.

Innovations and Future Outlook

Longlongsheng’s future development is closely linked to changes in the technical-textile and polymer-processing industries. Several trends are likely to influence demand for its machinery:

• Growth in protected agriculture and horticulture
• Continued use of nets in construction and infrastructure
• Demand for aquaculture and fishing equipment
• Increasing requirements for product traceability and quality consistency
• Greater use of automation and digital monitoring
• Interest in recycled and mono-material yarns
• Pressure to reduce energy use and production waste
• Expansion of technical-textile manufacturing in emerging markets

The company’s specialized focus on net-making machinery provides opportunities in application markets where product design, mesh uniformity, and machine configuration are important. At the same time, competition will depend on the ability to combine mechanical performance with automation, energy efficiency, global service, regulatory compliance, and compatibility with evolving recycled-material requirements.

Longlongsheng’s participation in overseas exhibitions, including events directed at African and other emerging textile markets, indicates an export strategy centered on application development and direct engagement with regional manufacturers. Its long-term position will depend on converting this international reach into dependable installed-machine performance, repeat orders, and localized technical support.

Summary

Changzhou Longlongsheng Warp Knitting Machinery Co., Ltd. is a Changzhou-based Chinese manufacturer specializing in warp-knitting and Raschel machinery for polymer-based nets and technical textiles. Its principal products include single- and double-needle-bed machines, knotless net-making systems, warping equipment, and related production-line machinery.

The company serves agricultural, fishing, construction, safety, sports, packaging, household, and industrial applications. Its role in the plastics industry is situated at the processing and conversion stage, where synthetic yarns are transformed into functional mesh products rather than produced as raw polymers.

Longlongsheng’s principal strengths are its specialized net-machinery portfolio, broad application coverage, and international export orientation. Its future development is likely to be shaped by automation, energy efficiency, recycled-material compatibility, technical-textile growth, and the need for reliable service across geographically diverse markets.

References

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  CPS+ eMarketplace. (n.d.). CHANGZHOU LONGLONGSHENG WARP KNITTING MACHINERY CO.,LTD.CHANGZHOU LONGLONGSHENG WARP KNITTING MACHINERY CO.,LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1038623Link