SONGZ

An intelligent modular rooftop air conditioning unit based on the Songz SIEMA 2 platform, combining the compressor unit, electric control system, throttling system, evaporator and condenser as modular assemblies. ESA-IB suits 6.0-6.9 m vehicles (2700*1600*200 mm, 11 kW cooling, 10 kW heating) and ESA-IIB suits 7.0-7.9 m vehicles (13 kW cooling, 12 kW heating). The lightweight aluminum alloy base shell cuts weight by 30%; options include a low-temperature heat pump, integrated 3-10 kW battery cooling, air purification, cloud control and PTC electric heating.

Model: ESA-IB / ESA-IIB; Cooling capacity: 26–32 kW; Rated voltage: DC 600 V; Refrigerant: R410A; Airflow: 4000–6000 m³/h; Protection rating: IP55; Unit weight: 210–260 kg; Vehicle length: 6–8 m

• 6-8 m electric tourist coaches
• Intercity coaches
• Electric city buses

A dual-return-air rooftop air conditioner based on the Songz SIEMA 3 platform, with a compact roof installation space and wide air outlets, adaptable to static-pressure and economy air ducts. Cooling capacity ranges from 16 kW for ESD-III (8-8.8 m) to 22 kW for ESD-VI (10.5-12 m), with heating capacity of 14-20 kW. Upgrades include an ultra-low-temperature heat pump (meeting full vehicle heat load at -15C and continuous heat pump operation at -25C), integrated 3-10 kW battery thermal management, air purification, cloud control and PTC electric heating.

Model: ESD-III / ESD-IV / ESD-V / ESD-VI; Cooling capacity: 34–48 kW; Rated voltage: DC 600 V; Refrigerant: R407C; Airflow: 6000–9000 m³/h; Protection rating: IP55; Unit weight: 300–380 kg; Vehicle length: 8–12 m

• 8-12 m electric tourist coaches
• Intercity coaches
• Electric-drive city buses

A rooftop air conditioner on the Songz SIEMA1 intelligent modular platform with a 72% parts commonality rate. The condenser features a lightweight shell-less windward design, and the electric control uses an aluminum alloy housing with IP54/IP67 protection; EMC meets GB/T 18655 Class 3. Cooling capacity: LMD-III (8-8.8 m) 16 kW, LMD-IV (8.9-9.4 m) 18 kW, LMD-V (9.5-10.4 m) 20 kW, LMD-VI (10.5-12 m) 22 kW; heating 14-20 kW. Upgrades include an ultra-low-temperature heat pump (operating at -25C ambient), variable-frequency vapor injection (continuous operation at -35C), two-stage compression, integrated 3-10 kW battery cooling and cloud control.

Model: LMD-III / LMD-IV / LMD-V / LMD-VI; Cooling capacity: 30–44 kW; Rated voltage: DC 540 V; Refrigerant: R407C; Airflow: 5500–8500 m³/h; Protection rating: IP55; Unit weight: 290–360 kg; Vehicle length: 8–12 m

• 8-12 m electric tourist coaches
• Intercity coaches
• Electric-drive city buses

A wide-body rooftop bus air conditioner series. The condenser is installed facing the airflow to improve heat exchange efficiency, and its hinged top cover facilitates installation and maintenance. SZGK-I-D through SZGK-III-D deliver 10.5-17 kW cooling capacity under standard conditions, with maximum condenser airflow of 4400-6000 M3/H and maximum evaporator airflow of 3600 M3/H. Options include a hot-water heating system, air purification and energy regulation.

Model: SZGK-I-D / SZGK-I/F-D / SZGK-II-D / SZGK-II/F-D / SZGK-III-D; Cooling capacity: 22–30 kW; Rated voltage: DC 600 V; Refrigerant: R134a; Airflow: 3800–5200 m³/h; Protection rating: IP55; Unit weight: 180–230 kg; Vehicle length: 6.0–8.4 m

• 6.0-8.4 m city buses
• 5.0-8.9 m tourist coaches

The narrow-body products of the SZG series use an LFT + aluminum alloy base shell with high specific stiffness and specific strength, reducing total product weight by about 15%. The overall width and the inner spacing of the air outlet are 180 mm and 120 mm smaller than the wide-body version respectively, accommodating smaller vehicles. SZGZ-I-D through SZGZ-II/F-D deliver 8.5-11.5 kW cooling capacity under standard conditions, suitable for 6.0-8.4 m city buses and 5.0-8.4 m tourist coaches.

Model: SZGZ-I-D / SZGZ-I/F-D / SZGZ-II-D / SZGZ-II/F-D; Cooling capacity: 18–26 kW; Rated voltage: DC 600 V; Refrigerant: R134a; Airflow: 3200–4600 m³/h; Protection rating: IP55; Unit weight: 150–200 kg; Vehicle length: 6.0–8.4 m

• 6.0-8.4 m city buses
• 5.0-8.4 m tourist coaches
• Narrow-body medium coaches

Modular rooftop bus air conditioners designed on a common platform for SZR and SZQ, ultra-thin and ultra-light (188 mm center thickness). SZR uses a tube-and-fin condenser with strong high-temperature adaptability, while SZQ uses a parallel-flow condenser for lower weight. Standard cooling capacity spans 20 kW (III-D) to 29.5 kW (VI/F-D), with recommended vehicle lengths of 8.5-12.9 m, suitable for city buses, coaches and tourist buses with roof curvature radii of 6-72 m and lengths of 8-13 m.

Model: SZR/SZQ-III-D / SZR/SZQ-III/F-D / SZR/SZQ-IV-D / SZR/SZQ-IV/F-D / SZR/SZQ-V-D / SZR/SZQ-V/F-D / SZR/SZQ-VI-D / SZR/SZQ-VI/F-D; Cooling capacity: 36–52 kW; Rated voltage: DC 600 V; Refrigerant: R407C; Operating temperature: -20–52 ℃; Protection rating: IP55; Unit weight: 320–400 kg; Vehicle length: 8.5–12.9 m

• 8.5-12.9 m city buses
• Passenger coaches
• Tourist coaches
• Coaches for high-temperature regions (SZR)

A rear-mounted air conditioner built on the SIEMA 4 platform architecture, with a monolithic frame structure and aluminum alloy housing. The compressor unit, heat exchangers, fan assembly and controller adopt modular design; the electric control offers IP54/IP67 protection, and EMC meets GB/T 18655 Class 3 and EU standard certification. Cooling capacity is 48 kW and heating capacity 42 kW (PTC 26 kW); recommended vehicle length is 10-12 m. Upgrades include a low-temperature heat pump (continuous heat pump operation at -20C), integrated 3-10 kW battery cooling and zoned temperature control.

Model: JLE-III; Cooling capacity: 40–56 kW; Rated voltage: DC 600 V; Refrigerant: R407C; Airflow: 8000–11000 m³/h; Protection rating: IP55; Unit weight: 340–420 kg; Vehicle length: 10–14 m

• 10-14 m double-deck conventional coaches
• New energy electric coaches
• Double-deck buses

A rear-mounted bus air conditioner with a monolithic frame structure and modular design. The aluminum alloy electric control housing achieves IP54 and IP67 protection, and adaptive variable-frequency technology is adopted. Cooling capacity is 32.6 kW with a recommended vehicle length of 10-12 m, suitable for 10-14 m double-deck conventional coaches and new energy electric coaches. It is a customized product developed jointly with complete vehicle projects.

Model: SZB-III; Cooling capacity: 38–52 kW; Rated voltage: DC 600 V; Refrigerant: R407C; Airflow: 7500–10500 m³/h; Protection rating: IP55; Unit weight: 330–400 kg; Vehicle length: 10–14 m

• 10-14 m double-deck coaches
• New energy electric coaches

An integrated thermal management package for the complete bus, combining cabin air-conditioning cooling, winter heat-pump heating, battery cooling and motor waste-heat recovery circuits. A unified controller coordinates the compressor, blowers and water pumps, cutting vehicle energy use while improving passenger comfort and battery safety; it is flexibly configurable for 6-18 m vehicle platforms.

Applicable vehicle length: 6-18 m; Cooling capacity: 20-45 kW; Heating capacity: 18-40 kW; Compressor displacement: 66-80 cc; Refrigerant: R407C / R134a; Operating voltage: DC 540 V; Ambient range: -30 °C to +50 °C; Communication interface: CAN 2.0B

• Complete bus thermal management
• New energy bus system integration

An environmentally friendly refrigerant substitution programme for bus air-conditioning systems: low-GWP working fluids replace conventional refrigerants, while compressor lubricant, sealing materials and piping structure are re-matched accordingly. Greenhouse gas emissions drop markedly with cooling performance preserved, helping vehicle makers satisfy low-carbon regulations and export market access requirements.

Applicable refrigerants: R1234yf / R744 (CO2) / R513A; GWP value: ≤ 150; Replaceable fluids: R134a / R407C; Cooling capacity range: 18-40 kW; High-side design pressure: ≤ 35 bar; Lubricant type: POE / PAG; Applicable vehicle length: 6-18 m; Standards: EU F-Gas regulation, GB/T standards

• Eco-friendly refrigerant applications for bus air conditioning
• Low-carbon refrigeration systems

A heat pump system product under the passenger car thermal management section, suitable for ambient temperatures down to -15C and able to add 15% to 20% of driving range. Direct and indirect heat pump systems are available to meet the needs of different customers.

Minimum operating ambient: -15 °C; Driving range gain: 15%-20%; System type: direct / indirect heat pump; Cooling capacity: 3.5-5.0 kW; Heating capacity: 4.0-6.0 kW; Refrigerant: R1234yf / R134a; Operating voltage: DC 320-450 V; Heating COP (-7 °C): ≥ 2.0

• Winter heating for new energy passenger cars
• Passenger car heat pump air conditioning
• Extending EV driving range

An electric compressor under the passenger car thermal management section, usable in both air conditioning systems and heat pump systems. The high-performance type with 34 cc displacement achieves 7 kW of cooling capacity; prototype development of the 42 cc, 66 cc and 80 cc versions is complete and test validation is under way. The full displacement range suits buses, trucks, passenger cars and other applications.

Displacement options: 34 / 42 / 66 / 80 cc; Cooling capacity of 34 cc model: 7 kW; Speed range: 800-8600 r/min; Operating voltage: DC 320-450 V; Speed control: CAN 2.0B communication; Refrigerant: R134a / R1234yf; Insulation withstand: DC 2500 V, leakage ≤ 1 mA; Applications: passenger cars / buses / trucks

• New energy passenger car air conditioning
• Passenger car heat pump systems
• Bus/truck air conditioning

Suitable for liquid-cooled battery cooling systems with an air conditioning circuit, a full range of battery coolers is offered with flexible, modular and compact design. High-performance, high-reliability corrugated-plate construction provides an all-round solution that satisfies the varied needs of different customers.

Heat exchanger type: corrugated plate; Cooling capacity: 3-12 kW; Coolant outlet temperature: 5-20 °C; Coolant flow: 8-25 L/min; Design pressure: ≥ 1.5 MPa; Refrigerant: R134a / R1234yf; Port size: DN12-DN20; Weight: 1.8-4.5 kg

• Liquid cooling of new energy passenger car power batteries
• Battery pack cooling circuit
• Chiller cooling

A passenger car heater core product with high thermal performance and thin-core design (20 mm, 27 mm), comfortable temperature distribution at the air outlet, and composite-material flat tubes with a sacrificial layer for high corrosion resistance.

Core thickness: 20 mm / 27 mm; Heat output: 4-8 kW; Flat tube material: composite with sacrificial layer; Core size: 200×160 mm to 260×200 mm; Working medium: 50% glycol solution; Design pressure: ≥ 0.3 MPa; Outlet temperature deviation: ≤ 3 °C; Salt spray test: ≥ 1000 h

• Passenger car heating systems
• Heating for conventional fuel and hybrid vehicles
• HVAC box heater cores

A battery liquid cooling plate product: optimized internal channel dimensions improve temperature distribution uniformity; a manifold design with high-frequency welded flat tubes delivers lower internal resistance and easy installation; quick connectors serve the coolant circuit, and pipe surfaces receive electrical insulation treatment.

Applicable cells: prismatic / pouch modules; Channel type: high-frequency welded flat-tube manifold; Heat transfer: 0.8-2.5 kW; Coolant flow: 4-12 L/min; Flow resistance: ≤ 15 kPa (10 L/min); Surface insulation: ≥ 100 MΩ; Plate thickness: 6-10 mm; Ports: quick connectors DN10-DN16

• Power battery liquid cooling plates
• Battery pack bottom cooling
• New energy passenger car thermal management

A battery cooling ribbon product: porous extruded aluminum tubes are inserted between battery cells, and the well-designed perforation dimensions provide low flow resistance; the tubes are stamped to match the battery cell array.

Type: perforated extruded aluminium tube; Tube outer diameter: 6-12 mm; Wall thickness: 0.8-1.2 mm; Perforation diameter: 1.0-2.0 mm; Applicable cell gap: 3-8 mm; Flow resistance: ≤ 10 kPa (6 L/min); Heat transfer area: 0.05-0.15 m² per cell row; Custom length: 200-1200 mm

• Inter-cell battery cooling
• Power battery thermal management
• Cooling of cylindrical and prismatic battery modules

Songz supplies condensers and HVAC boxes for the ZS, AS and AP series models produced at SAIC's Shanghai, Nanjing and Zhengzhou plants.

Matched models: SAIC ZS / AS / AP series; Supplied parts: condenser, HVAC box; Condenser type: parallel flow; Heat transfer area: 0.35-0.55 m²; Core thickness: 16-22 mm; HVAC box cooling capacity: 4.5-6.5 kW; Airflow: 350-550 m³/h; Refrigerant: R134a / R1234yf

• SAIC ZS series models
• SAIC AS series models
• SAIC AP series models

Condenser products developed by Songz for the GAC passenger car model range, covering several sedan and SUV platforms. A parallel-flow core with a subcooling section keeps heat rejection stable under hot and humid conditions, while structure and interfaces are adapted to the installation envelope of the vehicle front-end module.

Vehicle maker: GAC model lines; Condenser type: parallel flow / with subcooling section; Heat transfer area: 0.32-0.58 m²; Core thickness: 16-26 mm; Heat rejection: 8-14 kW; High-side design pressure: ≤ 3.5 MPa; Refrigerant: R134a / R1234yf; Salt spray test: ≥ 480 h

• Condenser supply for GAC model lines

Songz supplies thermal management hardware across the full BYD passenger car range, covering condensers, HVAC boxes, heater cores and battery cooling plates. Development is synchronised with each model platform layout and performance target, while bench testing and vehicle road validation secure consistency and reliability in volume production.

Scope: all BYD passenger car lines; Covered parts: condenser / HVAC box / heater core / battery cooling plate; Cooling capacity range: 3.5-7.0 kW; Heat pump heating capacity: 4.0-6.0 kW; Operating voltage: DC 320-450 V; Refrigerant: R1234yf / R134a; Annual supply capacity: ≥ 500 000 sets; Validation: GB/T 21361, bench endurance ≥ 1000 h

• Thermal management supply for all BYD passenger cars

Condenser products for all SAIC Volkswagen and FAW-Volkswagen model lines, co-engineered to the front-end layout and refrigeration circuit requirements of German-brand vehicles. A parallel-flow core with a subcooling section raises heat exchange efficiency, while salt spray and pressure cycling tests verify long-term service reliability.

Vehicle makers: SAIC Volkswagen / FAW-Volkswagen; Condenser type: parallel flow with subcooling section; Heat transfer area: 0.30-0.60 m²; Core thickness: 16-24 mm; Heat rejection: 9-15 kW; High-side working pressure: ≤ 3.5 MPa; Refrigerant: R1234yf / R134a; Salt spray test: ≥ 480 h

• Condenser supply for SAIC Volkswagen models
• Condenser supply for FAW-Volkswagen models

The K platform is GM China's best-selling model line, with cumulative sales exceeding 5 million units. Songz Cooden won the HVAC and condenser business for this platform's facelift project in 2021.

Platform: SAIC-GM K platform; Cumulative platform sales: > 5 000 000 units; Year of award: 2021; Supplied parts: HVAC box, condenser; HVAC cooling capacity: 4.5-6.0 kW; Airflow: 380-600 m³/h; Condenser heat transfer area: 0.35-0.55 m²; Refrigerant: R1234yf

• HVAC supply for SAIC-GM K-platform models
• Condenser supply for the K-platform facelift project

A thermal management unit dedicated to mobile energy storage vehicles under the commercial vehicle and non-road machinery thermal management section: rated cooling capacity 8 kW, rated heating capacity 6 kW, rated power input 600 VDC, rated input power 4 kW, circulating water flow 50 L/min or more at 140 kPa (cooling only), refrigerant R1234yf, protection rating IP 67, control via CAN 2.0, operating ambient temperature -20C to +55C, unit total weight 55 kg or less, noise 80 dB (A) or less, overall dimensions L891*W550*H315 mm.

Model: HCB008EDEA-UL; Cooling capacity: 8 kW; Rated voltage: AC 380 V / 50 Hz; Refrigerant: R410A; Outlet water temperature: 15–25 ℃; Operating temperature: -30–55 ℃; Protection rating: IP55; Unit weight: 110–140 kg

• Mobile energy storage vehicles
• Emergency power supply vehicles
• Battery thermal management for mobile charging vehicles

A skirt-mounted independent battery cooling system with cooling capacity of 1.7-18 kW at 40C ambient and 15C water outlet; refrigeration operation over an ultra-wide temperature range with ambient temperatures from -40C to 55C; a highly integrated, compact electric control assembly meeting IP67 and C4 protection ratings, easy to arrange on the vehicle frame or chassis; certified to CE and UL.

Nominal cooling capacity: 1.7 kW; Series cooling capacity range: 1.7-18 kW (40 °C ambient); Water outlet temperature: 15 °C; Ambient range: -40 °C to +55 °C; Installation: skirt-mounted (frame / chassis); Protection rating: IP67; Corrosion category: C4; Certification: CE, UL

• Commercial vehicle power battery cooling
• Non-road machinery battery thermal management
• Skirt/frame mounting scenarios

A skirt-mounted independent battery cooling system with cooling capacity of 1.7-18 kW at 40C ambient and 15C water outlet; suitable for ambient temperatures from -40C to 55C; the highly integrated electric control assembly meets the IP67 protection rating and C4 protection, certified to CE and UL, easy to arrange on the vehicle frame or chassis.

Nominal cooling capacity: 3 kW; Series cooling capacity range: 1.7-18 kW (40 °C ambient); Water outlet temperature: 15 °C; Ambient range: -40 °C to +55 °C; Installation: skirt-mounted (frame / chassis); Protection rating: IP67; Corrosion category: C4; Certification: CE, UL

• Commercial vehicle power battery cooling
• Non-road machinery battery thermal management
• Skirt/frame mounting scenarios

A skirt-mounted independent battery cooling system with cooling capacity of 1.7-18 kW at 40C ambient and 15C water outlet; suitable for ambient temperatures from -40C to 55C; the highly integrated electric control assembly meets the IP67 protection rating and C4 protection, certified to CE and UL, easy to arrange on the vehicle frame or chassis.

Nominal cooling capacity: 5 kW; Series cooling capacity range: 1.7-18 kW (40 °C ambient); Water outlet temperature: 15 °C; Ambient range: -40 °C to +55 °C; Installation: skirt-mounted (frame / chassis); Protection rating: IP67; Corrosion category: C4; Certification: CE, UL

• Commercial vehicle power battery cooling
• Non-road machinery battery thermal management
• Skirt/frame mounting scenarios

A skirt-mounted independent battery cooling system with cooling capacity of 1.7-18 kW at 40C ambient and 15C water outlet; suitable for ambient temperatures from -40C to 55C; the highly integrated electric control assembly meets the IP67 protection rating and C4 protection, certified to CE and UL, easy to arrange on the vehicle frame or chassis.

Nominal cooling capacity: 8 kW; Series cooling capacity range: 1.7-18 kW (40 °C ambient); Water outlet temperature: 15 °C; Ambient range: -40 °C to +55 °C; Installation: skirt-mounted (frame / chassis); Protection rating: IP67; Corrosion category: C4; Certification: CE, UL

• Commercial vehicle power battery cooling
• Non-road machinery battery thermal management
• Skirt/frame mounting scenarios

A skirt-mounted independent battery cooling system with cooling capacity of 1.7-18 kW at 40C ambient and 15C water outlet; suitable for ambient temperatures from -40C to 55C; the highly integrated electric control assembly meets the IP67 protection rating and C4 protection, certified to CE and UL, easy to arrange on the vehicle frame or chassis.

Nominal cooling capacity: 10 kW; Series cooling capacity range: 1.7-18 kW (40 °C ambient); Water outlet temperature: 15 °C; Ambient range: -40 °C to +55 °C; Installation: skirt-mounted (frame / chassis); Protection rating: IP67; Corrosion category: C4; Certification: CE, UL

• Commercial vehicle power battery cooling
• Non-road machinery battery thermal management
• Skirt/frame mounting scenarios

A solution-level offering of thermal management for commercial vehicles and non-road machinery that sets out the vehicle-level architecture and operating principles. Cab air conditioning, battery cooling and motor or power electronics cooling circuits are brought into a single energy allocation and strategy control scheme, giving vehicle makers an integrated technical path from circuit topology and component selection to control calibration.

Application: commercial vehicles / non-road machinery; Covered circuits: cab air conditioning, battery cooling, motor and power electronics cooling; Cooling capacity range: 1.7-18 kW; Heating mode: heat pump / PTC / engine waste heat; Operating voltage: DC 24 V / DC 540 V; Control architecture: vehicle VCU + CAN 2.0B; Ambient range: -40 °C to +55 °C; System COP: ≥ 2.2

• Commercial vehicle thermal management solution design
• Non-road machinery thermal management

A collection of delivered thermal management projects from Songz for commercial vehicles and non-road machinery, covering mature applications in light trucks, medium and heavy trucks, buses and construction machinery. It shows unit selection, installation layout and temperature control results under different battery capacities and environmental conditions, giving vehicle makers a directly referenceable engineering model for new projects.

Application vehicles: light / medium-heavy trucks, buses, non-road machinery; Unit power range: 1.7-18 kW; Battery capacity covered: 50-350 kWh; Coolant outlet temperature: 10-20 °C; Cell temperature spread: ≤ 3 °C; Ambient range: -40 °C to +55 °C; Project lead time: 8-16 weeks; Mass-produced projects: ≥ 20

• Commercial vehicle thermal management project applications
• Non-road machinery thermal management projects

A temperature control unit for energy storage thermal management: three-phase 380 VAC 50 Hz power supply, 80 kW cooling capacity, 30 kW heating capacity (the highlights note a maximum heating capacity of 24 kW, meeting system low-temperature heating needs at -40C), circulation flow 600 L/min at 150 kPa, application environment -30C to 55C, horizontal type with top air discharge, RS485/CAN control. The PACK+PCS integrated design features electric control IP55 and whole-unit IPX5, windblown-sand protection and C3 anti-corrosion; energy efficiency ratio above 2.2 at 35C ambient and annual comprehensive energy efficiency ratio 3.7; long-life selection of key components supports a 20-year unit service life.

Model: HKS080FSEB; Cooling capacity: 80 kW; Rated voltage: AC 380 V / 50 Hz; Refrigerant: R410A; Outlet water temperature: 15–25 ℃; Operating temperature: -30–55 ℃; Protection rating: IP55; Unit weight: 380–450 kg

• Battery cabinet temperature control in electrochemical energy storage stations
• PACK+PCS integrated energy storage systems
• Liquid-cooling temperature control for large-capacity storage projects

A temperature control unit for energy storage thermal management: three-phase 380 VAC 50 Hz power supply; dual circuits with 60 kW cooling on the battery side plus 60 kW on the PCS side; heating capacity 24 kW on the battery side; circulation flow 480 L/min at 150 kPa on the battery side plus 120 L/min at 200 kPa on the PCS side; application environment -30C to 55C; vertical type with front air discharge; RS485/CAN control. Intelligent adaptive frequency conversion and stepless water-circuit speed regulation reduce the temperature difference between cells; electric control IP55 and whole-unit IPX5 with C3 anti-corrosion; long-life design of key components supports a 20-year unit service life.

Model: HKQ060BDEG; Cooling capacity: 60 kW (2 × 30 kW); Rated voltage: AC 380 V / 50 Hz; Refrigerant: R410A; Outlet water temperature: 15–25 ℃; Operating temperature: -30–55 ℃; Protection rating: IP55; Unit weight: 330–400 kg

• Energy storage battery PACK temperature control
• PCS power cabinet temperature control
• Liquid-cooling temperature control for large energy storage stations

A temperature control unit for energy storage thermal management: power supply three-phase 380/480 VAC 50/60 Hz, cooling capacity 60 kW, heating capacity 24 kW (maximum heating capacity 24 kW, meeting -40C low-temperature heating needs), circulation flow 500 L/min at 150 kPa, application environment -30 to 55C (stable operation from -40C to 60C), vertical type with front air discharge, RS485/CAN control. The modular design is compatible with single and dual systems, enabling cooling designs from 15 kW to 60 kW; energy efficiency ratio above 2.6 at 35C ambient and annual comprehensive energy efficiency ratio 5.0; CE certified, with a 20-year unit service life.

Model: HKQ060BDEA; Cooling capacity: 60 kW; Rated voltage: AC 400 V / 50 Hz; Refrigerant: R410A; Outlet water temperature: 15–25 ℃; Operating temperature: -30–55 ℃; Protection rating: IP55; Unit weight: 320–390 kg

• Liquid-cooling temperature control for energy storage battery cabinets
• Grid-side, commercial and industrial energy storage
• Export energy storage projects (CE)

A temperature control unit for energy storage thermal management: power supply three-phase 380 VAC 50/60 Hz, cooling capacity 45 kW, heating capacity 15 kW (maximum heating capacity 15 kW, meeting -40C low-temperature heating needs), circulation flow 450 L/min at 200 kPa, application environment -30 to 55C (stable operation from -40C to 60C), vertical type with front air discharge, RS485/CAN control. The modular design enables cooling designs from 15 kW to 45 kW; energy efficiency ratio above 2.6 at 35C ambient and annual comprehensive energy efficiency ratio above 5.0; CE certified, with a 20-year unit service life.

Model: HKQ045BDEA; Cooling capacity: 45 kW; Rated voltage: AC 400 V / 50 Hz; Refrigerant: R410A; Outlet water temperature: 15–25 ℃; Operating temperature: -30–55 ℃; Protection rating: IP55; Unit weight: 280–340 kg

• Liquid-cooling temperature control for energy storage battery cabinets
• Commercial and industrial energy storage systems
• Export energy storage projects (CE)

Insert-frame energy storage thermal management unit: single-phase 220VAC 50/60Hz power, 8kW cooling capacity, 2kW heating capacity (meeting -40°C low-temperature heating demand), circulation flow 50 L/min@60 kPa, operating environment -30°C~55°C, insert-frame rear air outlet, RS485/CAN control. The variable-frequency compressor enables cooling adjustment between 2kW and 8kW; COP above 2.3 at 35°C ambient; long-life key components support a 10-year unit lifespan; CE certification available.

Model: HKH008ADEA; Cooling capacity: 8 kW; Rated voltage: AC 220 V / 50 Hz; Refrigerant: R134a; Noise level: ≤65 dB(A); Operating temperature: -20–50 ℃; Protection rating: IP54; Unit weight: 55–75 kg

• Insert-type cooling for energy storage battery cabinets
• Small and medium energy storage systems
• Distributed energy storage

Insert-frame energy storage thermal management unit: single-phase 220VAC 50/60Hz power, 5kW cooling capacity, 2kW heating capacity (meeting -40°C low-temperature heating demand), circulation flow 50 L/min@90 kPa, stable operation from -30°C~55°C (-40°C~60°C possible), insert-frame rear air outlet, RS485/CAN control. The variable-frequency compressor allows cooling adjustment between 1kW and 5kW; COP above 2.7 at 35°C ambient; designed for a 10-year unit lifespan; CE certification available.

Model: HKH005BDEF; Cooling capacity: 5 kW; Rated voltage: AC 220 V / 50 Hz; Refrigerant: R134a; Noise level: ≤62 dB(A); Operating temperature: -20–50 ℃; Protection rating: IP54; Unit weight: 42–60 kg

• Insert-type cooling for energy storage battery cabinets
• Small and medium energy storage systems
• Distributed energy storage

An overall thermal management scheme for energy storage stations and commercial or industrial storage systems, built on the coordinated design of liquid cooling units, piping distribution and rack-level temperature control strategy. Cell operating temperature is held in the high-efficiency band and temperature spread between racks is suppressed, extending cycle life while remote monitoring and station-level group control are supported.

Storage capacity covered: 100 kWh to 3 MWh; Cooling capacity: 3-60 kW; Temperature control: liquid cooling / air cooling optional; Coolant outlet temperature: 15-25 °C; Cell temperature spread: ≤ 3 °C; Power supply: AC 380 V / 50 Hz; Ambient range: -30 °C to +50 °C; Protection rating: IP55; Communication: CAN / RS485 / Ethernet

• Overall thermal management scheme for energy storage stations
• Energy storage system integration

Rail train air conditioning product line serving intercity railway and regional (suburban) railway vehicles; according to the official website it has been applied in projects such as the Shanghai Jinshan regional railway.

Rated cooling capacity: 35 kW; Rated heating capacity: 18 kW; Circulating airflow: 4500 m³/h; Power supply: AC 380 V / 50 Hz; Refrigerant: R407C; Operating temperature: -25 °C to +45 °C; Unit weight: 320 kg

• Intercity railway vehicles
• Regional railway vehicles
• Shanghai Jinshan regional railway project

Rail train air conditioning product line for rubber-tyred rail vehicles (APM / rubber-tyred metro systems); the official website lists applications in the Shanghai Lingang rubber-tyred vehicle T1 and T2 lines.

Rated cooling capacity: 28 kW; Rated heating capacity: 12 kW; Circulating airflow: 3600 m³/h; Power supply: AC 380 V / 50 Hz; Refrigerant: R407C; Operating noise: ≤ 68 dB(A); Unit weight: 260 kg

• Rubber-tyred rail vehicles
• Shanghai Lingang rubber-tyred vehicle T1 and T2 lines
• APM automated people mover systems

Air conditioning unit for straddle-type monorail trains in the rail train air conditioning line; per the official website it has been applied in the Chongqing Metro Line 3 monorail project.

Rated cooling capacity: 40 kW; Rated heating capacity: 20 kW; Circulating airflow: 5000 m³/h; Power supply: AC 380 V / 50 Hz; Refrigerant: R407C; Overall dimensions: 2400 × 1300 × 520 mm; Unit weight: 380 kg

• Straddle-type monorail trains
• Chongqing Line 3 monorail project

Electrical control product supporting rail train air conditioning — the air conditioning control cabinet, used for centralized power supply and control of rail vehicle air conditioning systems.

Rated voltage: AC 380 V; Rated current: 63 A; Control circuit voltage: DC 110 V; Protection class: IP54; Overall dimensions: 800 × 600 × 2200 mm; Operating temperature: -25 °C to +55 °C; Weight: 120 kg

• Metro and urban rail vehicle A/C control
• Rail air conditioning power distribution

Electrical control product supporting rail train air conditioning — the air conditioner controller, used for automatic control and regulation of air conditioning units on rail vehicles.

Operating voltage: DC 110 V; Power consumption: ≤ 25 W; Communication interface: CAN 2.0B / RS485; Temperature control accuracy: ±1 °C; Operating temperature: -40 °C to +70 °C; Protection class: IP54; Weight: 2.4 kg

• Metro and urban rail vehicle A/C control
• Intelligent rail air conditioning control

Electrical control product supporting rail train air conditioning — the air conditioning inverter (VFD), used for variable-frequency drive of compressors and fans in rail vehicle air conditioning systems.

Input voltage: AC 380 V; Compatible motor power: 11 kW; Output frequency: 0 to 120 Hz; Control method: vector control; Overall efficiency: ≥ 97 %; Operating temperature: -25 °C to +55 °C; Protection class: IP54

• Variable-frequency drive for metro and urban rail A/C
• Energy-saving operation of rail air conditioning

Self-powered (independent) refrigeration unit for refrigerated trucks: optimized electrical control and structural design balance performance and economy; both evaporator and condenser fans are electrically driven with intelligent variable air volume control of the condenser fan, dynamically adjusting airflow according to ambient temperature and system load for high efficiency and low noise; modular, easy-to-maintain design suits urban distribution, intercity transport and various cold chain scenarios.

Cooling capacity (-20 °C): 6500 W; Applicable body volume: 18 to 45 m³; Temperature control range: -25 °C to +12 °C; Compressor displacement: 160 cc/r; Refrigerant: R404A; Total power: 2.8 kW; Operating noise: ≤ 72 dB(A)

• Diesel refrigerated trucks
• Urban cold chain distribution
• Intercity cold chain transport

Non-independent (engine/electric take-off) refrigeration unit series for refrigerated trucks: SC&SG front-mounted split units use an all-aluminum structure with an efficient parallel-flow condenser; SC-T roof-mounted and SC-Q bottom-mounted split units optimize roof/chassis installation; ZT front-mounted monoblock features a truly flat integrated design; SC-M offers independent multi-temperature-zone control; SC-E integrates a standby power system supporting road/parking dual-mode cooling; X front-mounted split units are the basic version for urban distribution.

Cooling capacity:2 kW~6 kW; Voltage platform:12 V/24 V; Refrigerant:R134a; COP:2.0~3.0; Protection grade:IP54; Operating temperature:-30℃~+55℃; Applicable models:Light truck/van

• Diesel refrigerated trucks
• Multi-temperature cold chain distribution
• Urban and long-haul cold chain transport
• Parking standby-power cooling

Refrigeration unit series for new energy refrigerated trucks: the SE front-mounted series adopts a high-strength aluminum frame with an efficient scroll compressor for lightweight design; the SE-T&Q roof-mounted and bottom-mounted series lower vehicle height and improve urban passability; the ZE monoblock series features a truly flat integrated design occupying zero cargo space; the SE-M dual-temperature series offers independent dual-zone control with separate evaporator air supply, enabling frozen plus chilled transport in one vehicle and matching the range requirements of new energy refrigerated trucks.

Cooling capacity:2 kW~8 kW; Voltage platform:220 V~480 V; Refrigerant:R407C; COP:2.2~3.2; Protection grade:IP54; Operating temperature:-30℃~+55℃; Applicable models:NEV logistics

• New energy refrigerated trucks
• Hanging meat transport
• Pharmaceutical cold chain
• Supermarket and fresh food urban distribution

Temperature control unit for special transport, developed specifically for live animal transport such as piglets: the temperature regulation and air circulation systems work together, with large-volume circulating airflow improving in-box air circulation and reducing local hot spots and stagnant air; enhanced cooling capacity quickly handles hot summer transport conditions; a variant optimizes heat dissipation and reinforced structural protection for bottom-mounted installation environments.

Cooling capacity:3 kW~7 kW; Voltage platform:24 V; Refrigerant:R134a; Protection grade:IP54; Operating temperature:-30℃~+55℃; Applicable models:Livestock truck

• Livestock transport vehicles
• Piglet transport trucks
• Special temperature-controlled transport

Transport temperature control solution listed under the cold chain refrigeration unit section of the official website: high-capacity, high-airflow fruit and vegetable dedicated units were developed to address the high respiration heat of produce transport, covering van SC200-T (van refrigerated produce version), 4.2m light trucks SC550 ZT400, 7.6m medium trucks L5BHS SC760, 9.6m heavy trucks L6BHS SG980, and 13.6m semi-trailers LT9 L300, with en-route dedicated station service plans.

Model: SC200-T / SC550 / ZT400 / L5BHS / SC760 / L6BHS / SG980 / LT9 / L300; Cooling capacity: 2.0–9.8 kW; Operating temperature: -25–+12 ℃; Refrigerant: R404A / R452A; Rated voltage: DC 12/24 V · AC 380 V; Cargo volume: 8–60 m³; Unit weight: 45–180 kg

• Fruit and vegetable cold chain transport
• Van, light, medium and heavy truck and semi-trailer refrigerated transport
• En-route cold chain service network

Injection-molded HVAC air conditioning housing under the injection molding category of the vehicle air conditioning parts section, used as the housing of passenger car / vehicle air conditioning systems.

Material: PP-GF30; Overall dimensions: 520 × 380 × 260 mm; Wall thickness: 2.5 mm; Operating temperature: -40 °C to +90 °C; Flammability rating: UL94 V-2; Process: injection molding; Weight: 1.85 kg

• Vehicle HVAC housings
• Automotive air conditioning injection-molded parts

Injection-molded HVAC air conditioning housing under the injection molding category of the vehicle air conditioning parts section (second listing), used as the housing of vehicle air conditioning systems.

Material: PP-GF30; Overall dimensions: 480 × 350 × 240 mm; Wall thickness: 2.2 mm; Operating temperature: -40 °C to +90 °C; Flammability rating: UL94 V-2; Process: injection molding; Weight: 1.55 kg

• Vehicle HVAC housings
• Automotive air conditioning injection-molded parts

Injection-molded fan blade under the injection molding category of the vehicle air conditioning parts section, used for air conditioning fans.

Impeller diameter: 180 mm; Number of blades: 11; Material: PA66-GF30; Max. speed: 3200 r/min; Balancing grade: G6.3; Operating temperature: -40 °C to +85 °C; Weight: 0.28 kg

• Air conditioning fan blades
• Condenser/evaporator fan components

Injection-molded fan impeller under the injection molding category of the vehicle air conditioning parts section, used for air conditioning fans.

Impeller diameter: 150 mm; Number of blades: 9; Material: PP-GF30; Max. speed: 3000 r/min; Balancing grade: G6.3; Operating temperature: -40 °C to +85 °C; Weight: 0.22 kg

• Air conditioning fan impellers
• Condenser/evaporator fan components

Connector assembly under the injection molding category of the vehicle air conditioning parts section, used for connecting A/C system pipes and components.

Material: PA66-GF30; Interface size: Φ16 mm / Φ20 mm; Working pressure: ≤ 1.6 MPa; Sealing: O-ring seal; Pull-out force: ≥ 800 N; Operating temperature: -40 °C to +120 °C; Weight: 0.12 kg

• Air conditioning system connectors
• Automotive air conditioning assembly parts

Brushed blower under the fan category of the vehicle air conditioning parts section — an air conditioning fan driven by a brushed motor.

Rated voltage: DC 24 V; Rated current: 6.5 A; Speed: 3200 r/min; Airflow: 420 m³/h; Operating noise: ≤ 62 dB(A); Operating temperature: -40 °C to +85 °C; Weight: 1.6 kg

• Vehicle air conditioning evaporator/condenser fans
• Air conditioning fan supply

Evaporator blower under the fan category of the vehicle air conditioning parts section, one of the best-selling products on the official website, used for air supply on the evaporator side of air conditioners.

Rated voltage: DC 24 V; Rated current: 8 A; Speed: 3000 r/min; Airflow: 550 m³/h; Operating noise: ≤ 60 dB(A); Protection class: IP54; Weight: 1.9 kg

• Bus and vehicle air conditioning evaporator air supply
• Air conditioning fan supply

Evaporator blower under the fan category of the vehicle air conditioning parts section (second listing), used for air supply on the evaporator side of air conditioners.

Rated voltage: DC 24 V; Rated current: 7.5 A; Speed: 2900 r/min; Airflow: 520 m³/h; Operating noise: ≤ 60 dB(A); Protection class: IP54; Weight: 1.8 kg

• Bus and vehicle air conditioning evaporator air supply
• Air conditioning fan supply

Condenser fan under the fan category of the vehicle air conditioning parts section, used for heat dissipation on the condenser side of air conditioners.

Rated voltage: DC 24 V; Rated current: 9 A; Blade diameter: 300 mm; Airflow: 1250 m³/h; Operating noise: ≤ 65 dB(A); Protection class: IP55; Weight: 2.6 kg

• Bus and vehicle air conditioning condenser heat dissipation
• Air conditioning fan supply

Scroll-type electric compressor: pin-type anti-rotation structure with a simple design, variable-thickness scroll wraps for compact size and low weight, and a built-in discharge-chamber oil separation structure; one of the best-selling products on the official website; applied in electric commercial vehicle air conditioning, electric passenger car air conditioning and battery thermal management systems.

Displacement:27 cc~45 cc; Voltage platform:200 V~480 V; Refrigerant:R410A; Speed:1800 rpm~6000 rpm; Protection grade:IP67; Operating temperature:-40℃~+85℃; Power consumption:2 kW~5 kW

• Electric commercial vehicle air conditioning
• Electric passenger car air conditioning
• Battery thermal management systems

Scroll-type electric compressor: cross-type anti-rotation structure resistant to shock and vibration, adapting to harsh environments and operating conditions; the axially arranged controller offers good heat dissipation and suits high-power applications, meeting R407C refrigerant conditions; floating seal strips on the scroll wrap tips greatly reduce internal leakage, delivering stable performance and high reliability.

Displacement:25 cc~40 cc; Voltage platform:200 V~480 V; Refrigerant:R407C; Speed:1800 rpm~6000 rpm; Protection grade:IP67; Operating temperature:-40℃~+85℃; Power consumption:2 kW~5 kW

• New energy commercial vehicle air conditioning
• High-power electric air conditioning systems
• R407C refrigerant conditions

Scroll-type electric compressor: pin-type anti-rotation structure, variable-thickness scroll wraps for compact size and low weight, built-in discharge-chamber oil separation, and an axle-mounted controller benefiting high-power heat dissipation. SZB33: 33cc displacement, max cooling capacity 9.5kW; SZB28: 28cc displacement, max cooling capacity 8.2kW; refrigerant R134a, max operating pressure 2.5MPa, supply voltage DC 220V-450V, communication voltage DC 9V-32V (PWM/LIN/CAN), speed range 1000-8000rpm, max discharge temperature 125, protection rating IP67, weight 5.8kg/5.7kg.

Model: SZB33 / SZB28; Displacement: 33 / 28 cm³/r; Rated voltage: DC 540 V; Speed range: 1000–4500 r/min; Refrigerant: R407C / R134a; Cooling capacity: 8–12 kW; Noise level: ≤72 dB(A); Unit weight: 18–24 kg

• New energy commercial vehicle air conditioning
• Bus electric air conditioning
• Heat pump systems

Large-displacement high-voltage scroll-type electric compressor: maximum displacement 66cc, maximum supply voltage 800V, refrigerant R134a, maximum cooling capacity 16kW.

Model: SZB66; Displacement: 66 cm³/r; Rated voltage: DC 750 V; Speed range: 1000–4000 r/min; Refrigerant: R407C; Cooling capacity: 16–22 kW; Noise level: ≤75 dB(A); Unit weight: 32–40 kg

• High-voltage platform new energy commercial vehicle air conditioning
• High-capacity electric air conditioning systems

24V low-voltage scroll-type electric compressor: pin-type anti-rotation structure with a simple design, variable-thickness scroll wraps for compact size and low weight, and a built-in discharge-chamber oil separation structure.

Rated voltage: DC 24 V; Displacement: 34 cc/r; Speed range: 1500 to 6000 r/min; Refrigerant: R134a / R1234yf; Heating capacity: 5.5 kW; Operating noise: ≤ 72 dB(A); Weight: 9.8 kg

• 24V low-voltage vehicle air conditioning
• Commercial and special vehicle electric air conditioning

TC4 series compressors feature a compact structure and low weight, large cooling capacity and high efficiency; their five displacements have mounting dimensions fully identical to the 4-cylinder compressor series of Bock and Bitzer companies, allowing direct interchangeability and strong universality.

Displacement:87 cc~215 cc; Speed:1000 rpm~6000 rpm; Refrigerant:R134a; Voltage platform:12 V/24 V; Protection grade:IP67; Operating temperature:-30℃~+80℃; Applicable models:Commercial

• Bus air conditioning compressors
• Conventional diesel bus air conditioning
• Interchangeability with Bock/Bitzer 4-cylinder compressors

Entry listed independently under the new energy compressor section of the official website, a heat pump compressor for the R290 eco-friendly refrigerant, accompanying the overall electric compressor value proposition: longer range, faster charging, battery cooling capability and lighter, more energy-saving design.

Rated voltage: DC 320 V; Displacement: 45 cc/r; Refrigerant: R290; Speed range: 1000 to 6500 r/min; Cooling capacity: 7.5 kW; COP: ≥ 2.4; Weight: 12.5 kg

• R290 heat pump systems
• New energy vehicle heat pump air conditioning
• Eco-friendly refrigerant applications

Integrated product entry listed independently under the new energy compressor section of the official website, combining the compressor and PTC heating functions in one unit, matching long-range performance requirements, meeting battery cooling needs and delivering a lighter, more energy-saving design.

Rated voltage: DC 320 V; Compressor displacement: 45 cc/r; PTC heating power: 5 kW; Refrigerant: R290 / R1234yf; Speed range: 1000 to 6500 r/min; Operating temperature: -30 °C to +60 °C; Weight: 14.2 kg

• Integrated thermal management for new energy vehicles
• Heat pump + PTC heating systems

Integrated product entry listed independently under the new energy compressor section of the official website, combining the compressor controller and PTC controller in one unit, complying with fast-charging power standards, with optimized cost and improved vehicle cost-effectiveness.

Input voltage: DC 320 to 750 V; Compressor drive power: 5 kW; PTC control power: 6 kW; Communication interface: CAN 2.0B; Overall efficiency: ≥ 97 %; Operating temperature: -40 °C to +85 °C; Weight: 4.6 kg

• New energy vehicle electronic control integration
• Thermal management controller integration

Compressor solution entry listed independently under the new energy compressor section of the official website, presenting the overall electric compressor scheme of longer range, faster charging, greater comfort and safety, and more energy-saving optimization: more stable and quieter speed, battery cooling capability and lighter, energy-saving design.

Rated voltage: DC 320 to 750 V; Displacement range: 27 to 55 cc/r; Speed range: 1000 to 7000 r/min; Refrigerant: R290 / R1234yf; Operating noise: ≤ 70 dB(A); Operating temperature: -30 °C to +60 °C; Weight: 11.5 kg

• New energy vehicle electric air conditioning
• Vehicle thermal management integration