High-capacity Water Cooled Screw Chiller with ISO certification

Product Description

Sujing Customizabe High-capacity Water Cooled Screw Chiller with ISO certification

As one of China's earliest professional manufacturers of purification air conditioners and HVAC equipment, Sujing specializes in R&D, production, sales, and installation. We operate two core segments: air conditioning systems and heat pump systems. The heat pump line includes CO2 heat pumps, cascade variable frequency units, air source (chilled water) units, water-cooled chillers, industrial screw units, air-cooled modules, and drying units.

Our products are widely applied in industry, agriculture, commerce, transportation, and aerospace, as well as in specialized fields like green heating, coal mines, oil fields, livestock farming, agricultural drying, and biomedicine. They are exported to over 30 countries, including the U.S., Finland, the Netherlands, Canada, and Brazil.

Product Description

Sujing Customizable Water Cooled Screw Chiller with ISO certification
updated in 2025-11-19

SJFX Series Flooded Water Cooled Screw Unit

The SJFX series full liquid type semi-closed twin-screw chiller unit features high efficiency,energy saving,high reliability,and simple and convenient control.
The enhanced heat exchange tube significantly improves the heat exchange capacity of the unit,combined with twin-screw compressor technology,greatly improving system efficiency;multi-compressor design not only achieves higher efficiency at partial loads,but also enhances unit redundancy.
Equipped with Siemens controllers and a touch-screen LCD display,it easily achieves operation and monitoring of the unit.At the same time,we have abandoned some flashy but impractical functional designs and,based on the concept of simple operation and reliable performance,have introduced this economical and practical screw-type chiller unit to our customers.

 

Product Parameters

Model			SJFX-300XE3SF
Cooling working condition	Refrigeration capacity	U.S. RT	300
		kW	1137
		*10³kcal/h	98
	Input power	kW	202
	COP	kW/kW	5.6
	Chilled water flow	m3/h	194.9
	Chilled water pressure drop	kPa	72
	Cooling water flow	m3/h	229.6
	Cooling water pressure drop	kPa	80
Compressor	Type		Semi-closed screw compressor
	Quantity		1
Start-up way			Y-Δ
Energy control		%	25~100%
Power supply			380V/3N 50Hz
Condenser	Type		Water cooled shell and tube type
	Quantity		1
Evaporator	Type		Flooeded type
	Quantity		1
Refrigerant	Type		R134a
Temperature control			Water temperature PID control
Chilled water inlet/outlet water pipe diameter			DN200
Cooling water inlet/outlet water pipe diameter			DN200
Insulation material			Pixel flexible closed foam thermal insulation material
Unit weight		kg	5030
Running weight		kg	5432
Rated current(cooling)		A	370.0
Dimensions(length * width * height)		mm	4500*1750*2100

Remarks:
1) Normal working condition for cooling: inlet/outlet water temperature(evaporator):12/7ºC,inlet/outlet water temperature(condenser):30/35ºC.
2) The default power supply is 380V/3N 50Hz,allowable fluctuation of voltage±10%,standed start-up way is Y-Δ.
3) The water pressure drop of evaporator and condenser does not include any external pipes and parts resistance.
4) The dimension and weight in the parameter list is just for reference,if you need the detailed dimension,please contact with our company.
5) Specifications are subject to change with product improvements, please refer to the actual product.
6) Customization is available according to the customer's actual requirements.

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Company Profile

Jiangsu Sujing Group Co., Ltd

Dedicated to overall solutions for equipment manufacturing in the field of dehumidification and environmental protection.
History: Established in 1969, state-owned high-tech company  
Size: 130,000 square meters  
Employees: 1200+

Chiller Performance Testing Center

The testing center is equipped to evaluate both water chillers and water/ground source heat pumps, simulating year-round operating conditions. It supports single-unit testing up to 1200 kW, ensuring reliable performance validation under real-world scenarios.

100HP Environmental Simulation Laboratory

This state-of-the-art laboratory is equipped to test chillers & heaters, direct expansion units, combined air conditioning units, and fan coil units-with dedicated capabilities for explosion-proof equipment. It can simulate year-round operating conditions and supports single-unit testing up to 300 kW, ensuring comprehensive and reliable performance validation.

Environmental Simulation Enthalpy Difference Laboratory

This laboratory can simulate extreme environments with temperatures ranging from -30°C to 50°C. It tests dehumidifier performance under various climate conditions, while real-time monitoring of operating parameters is conducted through a central control room. This ensures a solid foundation for the stable and reliable operation of dehumidifiers.

Rotary Dehumidifier Testing Center

Equipped with advanced sensors, our testing center continuously monitors key operating parameters to accurately assess the dehumidifier's performance and operating status. Real-time test data can be accessed anytime via mobile devices, offering valuable insights for fault diagnosis and condition evaluation-driving smarter maintenance and continuous product optimization.

FAQ

1.Who are we?
Established in 1970 as a state-owned enterprise, Jiangsu Sujing Group Co., Ltd. is a National Innovation Pilot Enterprise and National Key High-Tech Enterprise dedicated to advancing technological innovation, intelligent equipment manufacturing, and energy-saving integrated solutions in the clean environmental protection sector. With a steadfast commitment to sustainable development, we drive high-quality growth through cutting-edge technologies and industry leadership.

2.How can we guarantee quality?
A: Always a pre-production sample before mass production; Always final Inspection before shipment.

3.Q3. What can you buy from us?
A: Dehumidifiers,Chillers & AC Terminal,Heat Pump
 

4.Q4. Why should you buy from us not from other suppliers?
A:Innovation Ecosystem: Built a multidimensional R&D platform-"Institute + Research Station + Engineering Center", achieving breakthroughs in green technology R&D, patent applications, and industry standards.

Cutting-Edge Manufacturing: Specialize in heat pumps, industrial air conditioners, dehumidifiers, chillers, fan coil units, and customized HVAC solutions.

Global Impact: Products serve new-generation IT, renewable energy, electronics, and commercial/industrial sectors.
 

5.Q5. What services can we provide?
A: Accepted Delivery Terms: FOB,CIF,EXW;
Accepted Payment Currency: USD, EUR,CNY;
Accepted Payment Type: T/T,L/C
Language Spoken: English, Chinese;