Milk Cooling Tank

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Introduction

Refrigeration tanks are the preferred equipment for preserving raw milk on farms. Utilizing rapid cooling technology and rigorous hygiene standards, they safeguard milk quality from the source and help optimize farm revenue

Wanzhi Machinery offers milk cooling tanks in various capacities to meet varying milk production needs. They utilize direct cooling technology, with the tank’s inner and outer shell constructed of food-grade 304 stainless steel and insulated with rigid polyurethane, ensuring hygienic and environmentally friendly cooling performance.

Capacity range: 500L – 20,000L
Material: Food-grade stainless steel

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Technical Parameters

Effective capacity

500L

1000L

2000L

3000L

5000L

6000L

8000L

10000L

12000L

15000L

20000L

Maximum capacity

510L

1010L

2010L

3050L

5100L

6300L

8200L

10600L

12500L

15500L

20000L

Type

Horizontal Oval / Vertical

Cooling method

Direct cooling

Material

Food-grade stainless steel

Inner Tank: 2.0mm, Outer Wall: 1.5mm

Inner Tank: 2.5mm, Outer Wall: 2.0mm

Inner Tank: 3.0mm, Outer Wall: 2.0mm

Evaporator

Evaporation area (㎡)

1.43

1.92

3.76

4.75

5.84

6.56

9.02

11.28

13.52

17.04

19.04

Material

304

Viewing hole diameter (mm)

400

450

Milk outlet diameter (mm)

Dimensions (L*W*H) (mm)

2100*1000*1300

2200*1300*1450

3200*1500*1500

3400*1700*1700

3760*2200*2100

4050*2200*2100

4950*2300*2100

5940*2200*2100

6460*2200*2100

6900*2300*2400

650022002300(split)

Insulation material and thickness (mm)

Rigid polyurethane, 80mm

Insulation performance

Complies with GB/T10942-2001 standard

Refrigeration time

Complies with GB/T10942-2001 standard

Compressor

Refrigerant type

R22

Total power (kW)

1.5

3.75

4.5

15.5

17.5

Compressor protection device

Pressure controller protection, compressor midpoint protection, overcurrent protection, phase sequence protection

Mixing system

Power (kW)

0.37

0.75

0.75*2

0.75*3

0.75*4

Rpm(r/min)

Stirring blade size (mm)

630*150

Shaft Diameter (mm)

Control Method

Manual/Automatic

Number of cleaning nozzles

1 set

2 sets

3 sets

Control box

Temperature risplay

Digital display (00.0°C)

Temperature display range

0-99℃

Set temperature adjustment range

0-8℃

Temperature deviation

±0.5℃

Power supply

Main power supply

220V, 50Hz

380V, 50Hz

Control power supply

220V

380V

Milk Cooling Tank Structure

Refrigeration System: The refrigeration system includes a compressor, evaporator, condenser, and filter drier.
Compressor: The “heart” of the refrigeration system, responsible for driving the refrigerant through the system and compressing it into high-temperature, high-pressure gas.
Evaporator: As the cooling component of the system, it directly or indirectly exchanges heat with the milk, absorbing heat from the milk and rapidly reducing its temperature.
Condenser: Cools the high-temperature, high-pressure gas discharged from the compressor into a liquid state, releasing heat (a core heat dissipation component).
Stirring System: Ensures a uniform temperature within the tank, preventing fat from rising and localized freezing, and assists with the cleaning process.
Controller: The intelligent brain of the device, responsible for setting, monitoring, and automatically adjusting temperature, stirring, and cleaning operations, ensuring precise and reliable operation.
Viewing port: Allows direct inspection of the milk level, status, and cleaning status within the tank without opening the lid, facilitating daily inspections.
CIP cleaning port: A standard connection for connecting cleaning lines, key to automated in-place cleaning (CIP) and ensuring complete hygiene within the tank.

Component Image

Wanzhi Milk Cooling Tank Advantages

Precise Match, Flexible and Efficient: We offer a variety of capacities to precisely meet the varying production and space requirements of businesses, from small farms to large dairy operations.
Energy-Efficient & Environmentally Friendly: Features eco-friendly high-density polyurethane insulation that effectively blocks heat exchange, minimizes cold loss, and significantly reduces operational energy consumption. Maintains stable low-temperature conditions inside the tank even during external temperature fluctuations.
Ultimate Hygiene, Safe and Reliable: Both inner tank and outer shell are constructed from food-grade 304 stainless steel with smooth, seamless surfaces. This design minimizes milk residue buildup and bacterial growth while facilitating effortless daily cleaning.
Intelligent Control, Hassle-Free Operation: Choose from basic to fully automated intelligent control systems. These precisely regulate cooling temperatures, support automatic cleaning cycles, and enable real-time operation monitoring—reducing manual intervention and operational errors.

We supply not only individual milk cooling tanks, but also production lines for condensed milk. The milk cooling tank is just one piece of equipment in a condensed milk production line. Please contact us for details about condensed milk production lines or any related equipment.