{"product_id":"plastic-shredder-1","title":"Plastic shredder","description":"\u003ch3 data-spm-anchor-id=\"5176.29317386.0.i1.25b548008APJaE\"\u003e1. Introduction\u003c\/h3\u003e\n\u003cp\u003eAs global industries prioritize operational resilience, energy efficiency, and water conservation, \u003cstrong\u003eair-cooled screw chillers\u003c\/strong\u003e have gained prominence as a self-contained, high-capacity cooling solution. Unlike water-cooled systems that depend on cooling towers and continuous water supply, air-cooled units reject heat directly to ambient air—making them ideal for rooftops, remote sites, or regions facing water stress [1][10].\u003c\/p\u003e\n\u003cp\u003eTheir rise is further driven by stringent environmental regulations, digitalization of building systems, and the expansion of energy-intensive sectors like data centers and lithium battery manufacturing. In China alone, the air-cooled screw chiller market grew by \u003cstrong\u003e6.2% in 2024\u003c\/strong\u003e, reaching \u003cstrong\u003e¥5.83 billion\u003c\/strong\u003e, with projections of \u003cstrong\u003e¥6.21 billion in 2025\u003c\/strong\u003e [3]. This paper synthesizes current technical specifications, innovations, and deployment trends based on industry data up to early 2026.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e2. System Architecture and Working Principle\u003c\/h3\u003e\n\u003cp\u003eAn air-cooled screw chiller operates on the standard \u003cstrong\u003evapor-compression refrigeration cycle\u003c\/strong\u003e, enhanced by the positive displacement action of a twin-screw compressor:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression\u003c\/strong\u003e: Low-pressure refrigerant vapor enters the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esemi-hermetic twin-screw compressor\u003c\/strong\u003e, where intermeshing rotors compress it into high-pressure, high-temperature gas. Advanced models use\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ebuilt-in oil pressure systems\u003c\/strong\u003e—eliminating external oil pumps—while maintaining optimal lubrication [1][6].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondensation\u003c\/strong\u003e: The hot gas flows into an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eair-cooled condenser\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecomposed of copper-aluminum finned tubes. Axial fans force ambient air across the coils, rejecting heat and condensing the refrigerant into liquid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpansion\u003c\/strong\u003e: The liquid passes through an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eelectronic expansion valve (EEV)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor thermostatic valve, reducing pressure and temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvaporation\u003c\/strong\u003e: In the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eshell-and-tube evaporator\u003c\/strong\u003e, the cold refrigerant absorbs heat from the chilled water loop (typically 5–15°C), completing the cycle [1][6].\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis closed-loop design enables \u003cstrong\u003eplug-and-play installation\u003c\/strong\u003e with minimal civil works—critical for retrofit projects or temporary facilities.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e3. Core Technical Features\u003c\/h3\u003e\n\u003ch4\u003e3.1 High-Efficiency Twin-Screw Compressor\u003c\/h4\u003e\n\u003cp\u003eModern units employ \u003cstrong\u003e5:6 asymmetric rotor profiles\u003c\/strong\u003e, achieving \u003cstrong\u003e20–30% higher efficiency\u003c\/strong\u003e than reciprocating compressors [6]. Key innovations include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-stage capacity control\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(e.g., 100%–75%–50%–25% or continuous modulation),\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11-bearing design with axial thrust balance drums\u003c\/strong\u003e, extending bearing life by 2.5–3.5×,\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated oil management\u003c\/strong\u003e: Oil separators combining cyclone, inertial collision, and adsorption achieve\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eoil separation efficiency of 99.97%\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e[1].\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e3.2 Performance Metrics\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling capacity\u003c\/strong\u003e: 400–1570 kW standard; up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2000 kW via modular stacking\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(e.g., Gree LM series) [1][6].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOP\u003c\/strong\u003e: ≥3.57 (refrigeration); ≥3.66 (heating mode in heat pump variants) [1].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating range\u003c\/strong\u003e: Ambient\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e–11°C to +52°C\u003c\/strong\u003e; chilled water\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e5–45°C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e[1][9].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerants\u003c\/strong\u003e: Primarily\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eR134a\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eR407C\u003c\/strong\u003e—zero ODP, moderate GWP, non-flammable [1][6].\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e3.3 Intelligent Control \u0026amp; Safety\u003c\/h4\u003e\n\u003cp\u003ePLC-based controllers enable:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrecise temperature regulation (±0.5°C),\u003c\/li\u003e\n\u003cli\u003eAutomatic defrost logic,\u003c\/li\u003e\n\u003cli\u003eMulti-layer protection: high\/low pressure, phase loss, freeze prevention, motor overload [1][10].\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNoise levels are typically \u003cstrong\u003e\u0026lt;75 dB(A)\u003c\/strong\u003e, suitable for urban rooftops [10].\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e4. Leading Product Platforms (as of 2026)\u003c\/h3\u003e\n\u003cdiv class=\"tongyi-markdown-table-wrapper\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand \u0026amp; Series\u003c\/th\u003e\n\u003cth\u003eKey Features\u003c\/th\u003e\n\u003cth\u003eApplication Focus\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYORK YSPA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e400–1570 kW; R134a; COP=3.57; –11°C to 52°C operation\u003c\/td\u003e\n\u003ctd\u003eLarge commercial buildings (malls, hospitals) [1]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGree LM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModular design; no master-sub module; shell-tube anti-freeze heating; intelligent defrost\u003c\/td\u003e\n\u003ctd\u003eFlexible scalability for industrial parks [1][6]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMcQuay MHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMedical-grade reliability; requires annual maintenance (oil\/filter replacement, electrical checks)\u003c\/td\u003e\n\u003ctd\u003eHospitals, labs, cleanrooms [1][11]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eOther common models (e.g., SJ-100AS) offer semi-hermetic compressors, multiple refrigerant options, and standardized safety protocols [1].\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e5. Applications Across Sectors\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Centers\u003c\/strong\u003e: Rapidly growing segment; units provide stable 24\/7 cooling for server racks without water dependency [1][8]. Alibaba and Tencent deploy these in regional hubs [8].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial Buildings\u003c\/strong\u003e: Malls, offices, and hotels benefit from rooftop installation and low operating costs [4].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHealthcare\u003c\/strong\u003e: MRI\/CT scanners and vaccine storage require uninterrupted, precise cooling—met by McQuay and YORK units [1][11].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Processes\u003c\/strong\u003e: Injection molding, chemical reactors, and electronics manufacturing leverage ±0.5°C stability and corrosion-resistant circuits [1][10].\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA real-world case: a 6-unit YORK YSPA installation on a shopping mall rooftop reduced electricity bills by \u003cstrong\u003e~22%\u003c\/strong\u003e while maintaining 24°C indoor comfort [4].\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e6. Market Trends and Sustainability Outlook\u003c\/h3\u003e\n\u003cp\u003eDespite an overall decline in the broader screw chiller market, \u003cstrong\u003eair-cooled variants show relative resilience\u003c\/strong\u003e due to demand from data centers, new commercial construction, and government-mandated equipment upgrades under China’s \u003cstrong\u003e“dual carbon” policy\u003c\/strong\u003e [1][3].\u003c\/p\u003e\n\u003cp\u003eKey drivers include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolicy support\u003c\/strong\u003e: Mandatory procurement of Tier-1 energy-efficient equipment in public projects [5].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocalization\u003c\/strong\u003e: Domestic brands (Gree, Midea, Hanbell) now rival international players in performance and cost [3].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmerging applications\u003c\/strong\u003e: 5G base stations, EV battery plants, and cold-chain logistics are expanding the addressable market [3].\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, challenges remain—higher upfront cost vs. scroll chillers, noise sensitivity, and lower COP than water-cooled counterparts in hot climates.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e7. Future Directions\u003c\/h3\u003e\n\u003cp\u003eInnovation is focused on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHybrid natural cooling\u003c\/strong\u003e: Leveraging ambient dry-bulb depression for free cooling during cool seasons [8].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAI-driven optimization\u003c\/strong\u003e: Real-time adjustment of fan\/compressor speed based on load and weather (validated to save\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e9.6% annual energy\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003evia CLS + CTC strategies) [2].\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNext-gen refrigerants\u003c\/strong\u003e: Pilots with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eR1234ze (GWP \u0026lt;1)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eunderway, though flammability and cost remain barriers [5].\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eModular, IoT-enabled, and service-integrated designs will dominate next-generation offerings.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e8. Conclusion\u003c\/h3\u003e\n\u003cp\u003eAir-cooled screw chillers combine mechanical robustness, operational simplicity, and rising intelligence to meet the evolving demands of modern cooling. By eliminating water dependency, delivering high part-load efficiency, and supporting rapid deployment, they offer a compelling alternative in both industrial and commercial settings. As sustainability mandates intensify and digital infrastructure expands, these systems will play an increasingly vital role in building climate-resilient, energy-smart facilities worldwide.\u003c\/p\u003e","brand":"Tongsheng","offers":[{"title":"Default Title","offer_id":47861124333706,"sku":null,"price":1888.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/7483\/8154\/files\/copy_f77d5671-ec59-48a5-a0e3-67da473523f5.jpg?v=1774338076","url":"https:\/\/tongshengmachinery.com\/vi\/products\/plastic-shredder-1","provider":"Tongsheng","version":"1.0","type":"link"}