75 HP Single compressor screw water chiller

75 HP Single compressor screw water chiller OMC-75WSH. Chilled water output temperature 5℃-35℃. Widely used in plastic industry, chemical industry, concrete mixing plant, pharmaceuticals industry......

  • Item NO.:

  • Payment:

    T/T, L/C,West Union
  • Product Origin:

  • Color:

  • Shipping Port:

    Shekou or Yantian Port
  • Lead Time:

    15-30 working days
  • Order(MOQ):

    1 set
  • Product Detail

75 HP Single compressor screw water chiller 

Screw water chiller is a type of industrial water chiller, water to water cooled chiller which compressor use semi-hermetic screw compressor type, Oumal chiller use famous brand screw compressor Hanbell or Bitzer compressor. The cooling capacity of the screw chiller from 30ton to 600 ton. The water-cooled screw chiller is mainly composed of a semi-hermetic screw compressor, a shell and tube condenser, a filter drier, a thermal expansion valve, a shell and tube evaporator, and electrical control parts.

The working principle of the water cooled screw chiller is: When the unit is refrigerated, the compressor sucks the low-temperature and low-pressure refrigerant in the evaporator into the cylinder. After the compressor performs work, the refrigerant vapor is compressed into high-temperature and high-pressure gas.
Enter the condenser through the exhaust pipe. The high-temperature and high-pressure refrigerant gas exchanges heat with the cooling water in the condenser, and transfers the heat to the cooling water, while the refrigerant gas is condensed into a high-pressure liquid. The high-pressure liquid from the condenser enters the evaporator after being throttled and pressure-reduced by the thermal expansion valve. In the evaporator, the low-pressure liquid refrigerant absorbs the heat of the chilled water and vaporizes, so that the chilled water is cooled down and becomes the required low-temperature water. The vaporized refrigerant gas is sucked in by the compressor again for compression, and discharged into the condenser, so that it goes round and round, and circulates continuously, so as to realize the cooling of the chilled water.

The chilled water from the unit enters the indoor fan coils, variable air volume air conditioners and other terminal devices, and exchanges heat with convection air indoors. In this process, the water absorbs the heat of the indoor air (dissipates heat to the indoor air). While the temperature rises, the indoor air temperature drops after passing through the indoor heat exchanger, and is driven by the fan to send it into the room, thereby reducing the indoor air temperature, and the chilled water after the temperature rises reenters the unit under the action of the water pump. Circulation, so as to achieve the purpose of continuous refrigeration.

Screw water chiller Product Information

●:Temperature control 5℃ to 35℃

●:Shell and tube evaporator and condenser

●:Bizer or Hanbell semi-hermetic screw compressor

●:Optional refrigerant R134a,R407c and R404a

●:Schneider Electrical Components

●:PLC/ Touch Screen Control Panel

●:No water tank, connect an external water tank

●:Need to connect a cooling tower

●:Safety protection devices of whole screw chiller

●:All models and cooling capacity available

Screw type water chiller Product display

Compressor features:

•New screw type compressor with 20%-30% higher in efficiency.

•Cooling capacity control available at four steps (100%-75%-50%-25%), three steps (100%-66%-33%) or no steps control system.

•High efficiency, low noise and vibration, easy to install.

•Environmental protection refrigerant R134a, R407c available.

Control operation system:

•SIEMENS PLC program control system, human-computer interface with big LED touch panel, running state displaying in multi-language, and self-diagnosis for easy operation and supervision.

•Extended industrial interface, convenient for being computer monitor via network.

Completely safety protection function:

•Multi-safety protection by high and low pressure, compressor overheating, overloading, over temperature, flow switch, phase sequence, phase-missing, exhaust overheating and anti-freezing.

75 HP Water Cooled Screw Chiller Application

75HP water cooled screw chiller use for extrusion cooling system. The extruder chiller is used for hard pipes, hoses, profiles, glue sticks, automotive glass sealing strips, cables, corrugated pipes, packaging bags, door and window sealing strips, etc. In addition to the plastic extrusion industry,the water cooled screw chiller also can used in many industry, such as medical industry, food cooling system, metal finishing process......

Screw Chiller Application

75 HP Screw chiller Product Specification

Item Model


Cooling Capacity









Input Power



Max.running Current



Power supply

3PH-380V/415V 50HZ(220V/440V  60HZ))




Charge quantity



Control Mode

Expansion Valve



Semi-Hermetic Screw




Start-up Mode


Capacity Control

0-25-50-75-100 (0-33-66-100)



Shell and Tube

Chilled water flow



Pipe Diameter





Shell and Tube

Cooling water flow



Pipe Diameter













Net Weight



Running Weight



Safety Protection:Compressor over temperature protection, over load protection, high and low pressure protection, anti-freezing protection, reversed and lacking phase protection, fusible blug, flow switch

Packing & Shipping

plastic process cooling system


Q1: Could you help us to recommend the model for our project?

A1: Yes, we have engineer to check the details and make the scheme for you. Based on the following:

1)Cooling capacity;

2)chilled water inlet and outlet temperature

3)chilled water flow

4) Refrigerant;

5) Ambient temperature;


7) Be used for what industry?

8)Any other special requirements?

Q2: How to ensure your product with good quality?

A2: All our products with CE certificate. And use the well-know brand accessories, such as copeland, danfoss,Hanbell, Bitzer compressor Emerson expansion Valve, Siemens controller.

also can be customized. All OUMAL Chillers are factory tested under load conditions to ensure good quality and easy installation for users

Q3: What's the warranty?

A3: 15 months warranty for free if confirmed by both side damage in the quality reason.

Q4: Whats your payment term?

A4: We accept T/T, LC, Western Union, etc. Normally, 30% deposit for production, 70% balance before shipment.

Q5: Are you a manufacturer?

A5: Yes, we have more than 15 years in water chiller business. Also have patent on the water chiller appearance.

The control box design make the unit safety and stably.

Q6: How can i Place an order ?

A6: Click Below to fill the table or Call 0086 15112554736

Want to know about this product?

Something isn’t Clear?

Feel free to contact me, and I will be more than happy to answer all of your questions.

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