Introduction
Jiangsu Lianzhong Liansheng Air Conditioner Equipment Co., Ltd. (江苏联众联胜空调设备有限公司) is a Chinese manufacturer of industrial heating, ventilation, air-conditioning, refrigeration, dehumidification, humidification, air purification, and heat-exchange equipment. The company is headquartered in Wanshi Town, Yixing, Jiangsu Province, and serves process industries in which temperature, humidity, air cleanliness, and thermal management influence product quality and operating safety.
Established in 2011 through the restructuring of Wuxi Lianzhong Humidity-Control and Energy-Saving Equipment Co., Ltd. and Wuxi Liansheng Environmental Protection and Purification Engineering Co., Ltd., the company combines equipment manufacturing with environmental-control engineering capabilities. Its product portfolio includes industrial rotary dehumidifiers, evaporative-cooling air-conditioning and chilled-water units, wet-film humidifiers, purified air-handling units, heat-pipe and plate heat exchangers, and ultra-low-dew-point closed-circuit cooling towers.
Within the plastics and wider advanced-manufacturing ecosystem, the company occupies a specialized position in climate-control infrastructure rather than polymer production or plastics-processing machinery. Its systems can support facilities producing plastics, polymers, batteries, photovoltaic materials, new materials, food products, chemicals, pharmaceuticals, and metal products, where stable environmental conditions are required for processing, storage, and quality control.
History and Development
The company’s development reflects the consolidation of two earlier Jiangsu enterprises with complementary capabilities:
- 2004: Wuxi Lianzhong Humidity-Control and Energy-Saving Equipment Co., Ltd. was established, providing an earlier foundation in humidity regulation and energy-saving equipment.
- 2008: Wuxi Liansheng Environmental Protection and Purification Engineering Co., Ltd. was established, adding experience in environmental purification and engineering services.
- 2011: The two businesses were merged and reorganized as Jiangsu Lianzhong Liansheng Air Conditioner Equipment Co., Ltd.
- Subsequent development: The company expanded from humidity-control equipment into evaporative cooling, industrial air-conditioning, heat recovery, air purification, and closed-circuit cooling technologies.
The company reports that its Yixing facility was initially developed on approximately 25 mu of land, with an initial investment of about RMB 50 million, including approximately 10,000 square metres of industrial workshops and 3,000 square metres of office space.
Business Operations and Segments
The company’s activities can be grouped into four connected areas:
| Business area | Principal equipment and functions |
|---|---|
| Humidity control | Rotary dehumidifiers, constant-humidity systems, and wet-film humidification equipment |
| Industrial air conditioning | Purification air-handling units, evaporative-cooling air-conditioning units, and direct or indirect evaporative coolers |
| Cooling and refrigeration | Evaporative-cooling chilled-water units and ultra-low-dew-point closed-circuit cooling towers |
| Heat exchange and energy efficiency | Heat-pipe and plate heat exchangers for heat recovery and thermal management |
This portfolio allows the company to address both individual equipment requirements and integrated environmental-control systems. Such integration is relevant to plastics manufacturing because resin drying, compounding, injection molding, extrusion, coating, packaging, and warehousing may each require different temperature and humidity conditions.
The company also maintains several regional offices or service contacts in China, including locations associated with Hefei, Guangzhou, Jinan, Tianjin, Xi’an, Chengdu, and Xinjiang. Its participation in CHINAPLAS indicates engagement with the plastics and rubber industry supply chain; the exhibition profile records participation since 2016.
Products and Technologies
Rotary dehumidifiers
Industrial rotary dehumidifiers remove moisture from process air by passing air through a desiccant wheel. The rotating wheel alternates between adsorption and regeneration zones, allowing continuous dehumidification. These systems are suitable for applications requiring low humidity or low dew points, including hygroscopic polymer processing, battery-material production, pharmaceutical manufacturing, and controlled storage.
For plastics processors, dehumidification can assist in reducing moisture-related defects in moisture-sensitive resins. The required system configuration depends on resin type, throughput, inlet-air conditions, target dew point, and the design of the drying and conveying system.
Wet-film humidifiers
Wet-film humidifiers add moisture to air through contact with a wetted medium. Compared with steam humidification, evaporative humidification can provide a lower-temperature method of increasing relative humidity where adequate air movement and water management are available. The technology is relevant to industrial halls, storage areas, textile-related environments, and processes where excessive static electricity or material drying must be controlled.
Purification air-handling units
The company manufactures purification air-conditioning units, which combine air movement, filtration, thermal conditioning, and—in suitable configurations—humidity control. These systems may be used in production areas requiring controlled cleanliness or stable environmental conditions. In plastics-related applications, purified air handling can support clean assembly, medical-device production, electronics-related polymer components, and packaging operations.
Evaporative-cooling equipment
The product range includes:
- Direct evaporative coolers
- Indirect evaporative coolers
- Evaporative-cooling air-conditioning units
- Evaporative-cooling chilled-water units
Direct evaporative cooling lowers air temperature through the evaporation of water into the supply airstream. Indirect systems transfer heat through a separating surface, reducing or avoiding the addition of moisture to the conditioned air. These approaches can reduce compressor reliance in climates and operating conditions favorable to evaporative heat rejection.
The suitability of evaporative cooling depends on ambient humidity, water availability, water-quality management, required supply conditions, and the degree of process control needed. For plastics plants, evaporative systems may be more appropriate for factory comfort cooling, ventilation, or selected process areas than for every precision-conditioning application.
Heat-pipe and plate heat exchangers
Heat-pipe heat exchangers transfer thermal energy through sealed heat pipes containing a working fluid, while plate heat exchangers use closely spaced plates to transfer heat between separate air or fluid streams. Both technologies can support heat recovery, ventilation-energy reduction, and separation between contaminated and clean air circuits.
Heat recovery is particularly relevant to industrial facilities with high ventilation loads or simultaneous heating and cooling requirements. Performance depends on temperature differences, airflow or fluid flow, exchanger geometry, fouling, pressure drop, and control strategy.
Ultra-low-dew-point closed-circuit cooling towers
The company identifies ultra-low-dew-point closed-circuit cooling towers among its principal products. A closed-circuit tower cools a process fluid without directly exposing that fluid to the external cooling-water circuit. This arrangement can reduce contamination risks and help maintain a cleaner process loop.
Ultra-low-dew-point configurations are associated with demanding cooling conditions in sectors such as batteries, new-energy materials, electronics, chemicals, and certain plastics-processing operations. Their effectiveness depends on climatic conditions, heat load, fluid temperatures, water treatment, airflow, and the required dew-point specification.
Applications and End Markets
The company’s equipment serves industries in which environmental control forms part of the manufacturing process or product-protection system. Identified application sectors include:
- Plastics and polymer processing
- Data centers
- Photovoltaic manufacturing
- Energy storage and battery materials
- New materials
- Food processing
- Chemical production
- Pharmaceutical manufacturing
- Metal smelting and forging
- Industrial production and warehousing
In plastics manufacturing, potential uses include:
- Dehumidified air for moisture-sensitive resin drying
- Conditioned air for precision molding and extrusion areas
- Cooling-water systems for molds, dies, auxiliary equipment, and process lines
- Heat recovery from exhaust or ventilation streams
- Humidity regulation in packaging and storage
- Air purification for controlled production environments
The required technical solution varies considerably between applications. A resin-drying installation, for example, has different dew-point and airflow requirements from a factory ventilation system or a closed-loop cooling installation for a high-temperature extrusion line.
Global Presence and Market Position
Jiangsu Lianzhong Liansheng is based in China and appears primarily oriented toward the domestic industrial-equipment market. Its network of regional offices and contacts supports coverage across several Chinese industrial regions. The company’s participation in CHINAPLAS places it within an international exhibition environment connecting machinery manufacturers, material suppliers, processors, and industrial-service providers.
The company’s market position is best understood as that of a specialized environmental-control and thermal-management supplier. It does not compete with large polymer producers or general-purpose air-conditioning conglomerates across the entire HVAC market. Instead, its differentiation is associated with combined capabilities in:
- Industrial dehumidification
- Evaporative cooling
- Process air purification
- Energy-saving heat exchange
- Closed-circuit cooling
- Application-specific environmental engineering
Competitive conditions in this field are influenced by equipment efficiency, lifecycle cost, control precision, service responsiveness, water consumption, climatic suitability, and the ability to integrate equipment into a broader factory system. The company’s relevance to plastics processors therefore depends not only on individual product performance but also on system design, commissioning, maintenance, and compatibility with production equipment.
Research and Development
The company’s product range indicates development activity across several technical fields:
- Desiccant-based air treatment
- Low-dew-point environmental control
- Direct and indirect evaporative cooling
- Closed-loop heat rejection
- Air purification and filtration
- Heat recovery through heat-pipe and plate exchangers
- Integrated industrial air-conditioning systems
These technologies correspond to major industrial requirements: lower energy consumption, stable process conditions, improved production reliability, and reduced dependence on conventional mechanical refrigeration.
For plastics manufacturers, further technical development is likely to focus on intelligent controls, variable-speed fans and pumps, improved desiccant materials, lower water consumption, heat recovery, remote monitoring, and integration with factory energy-management systems. The commercial value of such developments depends on measurable reductions in energy use while maintaining the temperature, humidity, cleanliness, and cooling stability required by the process.
Sustainability and Environmental Initiatives
The company presents energy saving, emission reduction, evaporative cooling, and ecological protection as central purposes of its products. Its technologies can contribute to environmental performance in several ways:
- Heat exchangers can recover energy from exhaust or ventilation air.
- Evaporative cooling can reduce compressor-based cooling demand under suitable conditions.
- Closed-circuit cooling can support cleaner process-fluid loops.
- Dehumidification systems can improve control of moisture-sensitive production environments.
- Integrated air-conditioning systems can reduce losses associated with poorly coordinated equipment.
These benefits are application-dependent rather than automatic. Evaporative systems require water and may face constraints related to water quality, scaling, biological control, and local water availability. Dehumidification can also consume substantial regeneration energy, particularly at very low dew points. A balanced assessment therefore requires consideration of whole-system energy use, water consumption, maintenance, refrigerant impacts, equipment lifetime, and operating climate.
For plastics facilities, environmental performance is increasingly linked to more than electricity consumption. Companies must also consider process scrap, product quality, cooling-water management, refrigerant selection, and the energy intensity of resin drying and factory ventilation.
Quality Management and Certifications
CHINAPLAS identifies Jiangsu Lianzhong Liansheng as a Specialized and Sophisticated Enterprise that Produces New and Unique Products, a Chinese government-recognized category associated with specialized small and medium-sized enterprises.
The company’s public exhibition profile and corporate materials also identify its manufacturing and engineering activities, but specific certification details should be interpreted according to the particular project and equipment model. In industrial HVAC and refrigeration procurement, purchasers commonly evaluate documented quality systems, electrical and pressure-equipment compliance, material traceability, factory testing, energy performance, installation standards, and after-sales support.
For plastics processors, quality assurance is particularly important because environmental-control failures can affect resin drying, dimensional stability, surface finish, production uptime, and contamination control. Equipment acceptance may therefore involve performance testing under defined airflow, temperature, humidity, dew-point, and cooling-load conditions.
Innovations and Future Outlook
The company’s future development is connected to several structural trends in industrial manufacturing:
- Expansion of battery, photovoltaic, and other new-energy production
- Increasing demand for low-dew-point manufacturing environments
- Greater attention to energy efficiency and carbon reduction
- Wider use of heat recovery and evaporative cooling
- Growth of automated monitoring and facility-level controls
- More demanding environmental conditions for advanced materials and plastics processing
Its established combination of dehumidification, cooling, purification, humidification, and heat exchange provides a platform for integrated industrial climate-control systems. Future competitiveness will depend on demonstrating operating performance through transparent technical data, improving controls and energy optimization, managing water and maintenance requirements, and providing reliable field service.
In plastics manufacturing, the most significant opportunities are likely to arise where environmental control directly affects product quality or process economics. These include high-performance polymers, moisture-sensitive materials, medical and food-contact components, battery-related polymer products, and plants seeking to reduce the energy intensity of drying and cooling.
Summary
Jiangsu Lianzhong Liansheng Air Conditioner Equipment Co., Ltd. is a Yixing-based Chinese manufacturer specializing in industrial environmental-control and thermal-management equipment. Founded in 2011 through the reorganization of two earlier Wuxi companies, it has developed a portfolio covering rotary dehumidifiers, wet-film humidifiers, purified air-handling units, evaporative cooling systems, heat exchangers, and ultra-low-dew-point closed-circuit cooling towers.
The company’s role in the plastics industry is indirect but important: it supplies infrastructure that can regulate humidity, temperature, cleanliness, and process cooling in plastics plants and related advanced-manufacturing facilities. Its long-term position will depend on technical reliability, lifecycle efficiency, water and energy management, and the ability to adapt specialized climate-control systems to increasingly demanding industrial applications.
References
- •
CPS+ eMarketplace. (n.d.). JIANGSU LIANZHONG LIANSHENG AIR CONDITIONER EQUIPMENT CO., LTD.JIANGSU LIANZHONG LIANSHENG AIR CONDITIONER EQUIPMENT CO., LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1008961Link