Industrial Air Cooled Screw Chiller
Stable operation at ultra-low temperature as low as -35°C, reliable cold climate heat pump
Accurate frost detection + fast automatic defrost, fewer defrost cycles & shorter defrost time
Mobile APP remote control, real-time fault alert & online intelligent diagnosis
High-efficiency running under wide ambient temperature: -35°C ~ 43°C, all-season HVAC unit
High energy efficiency: COPh>2.6 (beyond standard limit), IPLV(H) meets Grade 1 national energy efficiency
Industrial Air Cooled Screw Chiller
GRAD Air-Cooled Screw Cold & Hot Water Unit (Air Cooled Screw Heat Pump Chiller) is an all-year air-to-water HVAC system for cooling and heating. This industrial screw air cooled chiller features eco-friendly, energy-saving and stable performance with anti-freeze protection, intelligent defrost and smart control tech. With wide operation range and diversified specifications, it serves central air conditioning projects for hotels, malls, airports and process cooling demands for pharmaceutical, chemical, metallurgy, machinery and electronics industries.
This modular air cooled screw heat pump chiller is widely deployed in various public commercial venues, including hotels, shopping malls, office buildings, exhibition centers, airports, stadiums and other large central air conditioning projects. It also provides stable process cooling and heating solutions for numerous manufacturing sectors such as electronics, pharmaceuticals, biotechnology, textiles, chemical processing, metallurgy, electric power and machinery production workshops. As a tower-free HVAC chiller, it greatly simplifies installation work and cuts long-term maintenance costs for global HVAC contractors, project developers and factory owners.
● Large diameter heat exchanger, low temperature operation effectively reduce refrigerant flow resistance, increase evaporation pressure, inhibit frost;
● Large distance aluminum foil design, low temperature operation effectively reduce air flow resistance, increase evaporation pressure, inhibit frost;
● Fin flow independent control, accurate control, more thorough defrosting;
● Concentrated a variety of innovative technologies, distributed defrosting system and piston type four-way directional valve effectively avoid the suction of traditional air-cooled heat pump units With liquid, defrosting incomplete, four way directional valve stuck and so on.
About Us
GRAD boasts a global sales footprint spanning more than 100 countries and territories, including the United States, Australia, Indonesia, Malaysia, the UAE, Thailand, Nigeria and more. To advance our worldwide strategic layout, we have founded a subsidiary in the United States, alongside representative offices in Cambodia and Thailand.
Company Profile
Manufacturer: Shandong GRAD Group Co., Ltd.
Founded: 1993
Plant Area: 700,000 square meters
Core Product Lines: Central air conditioning units, ventilation equipment, FRP composite products, environmental protection equipment
Workforce: Over 2,500 staff members
Registered Capital: RMB 100 million
Total Investment in Production Equipment: RMB 370 million
Total Corporate Assets: RMB 925 million
Annual Output Value: Exceeding RMB 3 billion
R&D & Design Team: More than 300 professional engineers
Overseas Institutions:
Representative offices in Thailand & Cambodia
Wholly-owned subsidiary in the United States
Frequently Asked Questions
Q1: Which ports do you ship goods from?
A: We offer shipments from Qingdao, Shanghai, Tianjin and other major Chinese ports; alternative ports are available upon your specific demands.
Q2: What are your flagship products?
A: We specialize in central air conditioning systems, ventilation machinery and FRP composite material finished products.
Q3: What is your minimum order quantity (MOQ)?
A: Our standard MOQ is 1 unit, which can be adjusted according to your customized product specifications.
Q4: What payment methods do you accept?
A: We support Telegraphic Transfer (T/T) and Letter of Credit (L/C).
Q5: Where is your manufacturing base located?
A: Our factory is situated in Dezhou, Shandong Province.
High-speed rail: 1-hour trip to Beijing, 4-hour trip to Shanghai
Nearest international airport: Jinan Yaoqiang International Airport








