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HAGRA can offer you a wide range of used Packo milk cooling tanks in numerous measures of capacity. Look at our current stock to see all the tanks that are available immediately.
Packo tanks originate from "Packo n.v.", Zedelgem, Belgium. Besides "normal" tanks using direct expansion of refrigerant, Packo offers an alternative cooling system, the so-called "ice-bank"-system.
Both systems come in open and closed versions.
The direct expansion tank of Packo is the RM/DX model. With a flat bottom and an elliptical outer tank it is a very distinguishable tank.
This model has a capacity range of 2200 liters to a maximum of 15750 liters.
The table below shows all types, their capacity, and their basic measures. Additional measures because of the agitator engine, and built-on control and/or cleaning devices vary too much between individual tanks to mention them here.
| Tank type | Max. Capacity (in litres) |
A (in mm.) |
B (in mm.) |
C (in mm.) |
| RM/DX 3800 | 3881 | 2460 | 1780 | 1570 - 1690 |
| RM/DX 4400 | 4484 | 2830 | 1780 | 1570 - 1690 |
| RM/DX 5000 | 5039 | 3170 | 1780 | 1570 - 1690 |
| RM/DX 6000 | 6309 | 2840 | 2036 | 1830 - 1950 |
| RM/DX 8000 | 8401 | 3755 | 2036 | 1830 - 1950 |
| RM/DX 10000 | 10500 | 3992 | 2180 | 1974 - 2094 |
| RM/DX 12000 | 12600 | 4774 | 2180 | 1974 - 2094 |
| RM/DX 15000 | 15750 | 5950 | 2180 | 1974 - 2094 |
The ice-bank tank of Packo is the RM/IB model.
Cooling of the tank's content is done by cooling water to 0 deg. Celcius by building an ice layer in a "bath" full of water. Then this cold water is sprayed onto the inner tank, thus withdrawing warmth from the milk held by the inner tank.
Ice bank tanks are easily recognized because of their square appearance. Because of the water reservoir in the bottom of these tanks, they seem to have a larger storage capacity than they actually have.
The ice bank principle has some specific advantages. Ice bank tanks can store very little amounts of milk just as easy as large amounts. In large direct expansion tanks, small amounts of milk will probably freeze because of the huge cooling capacity of the condensing unit. In ice bank tanks the condensing unit only cools and freezes water; the cold water that is acting as a cooling intermediate can never freeze the contents of the inner tank.
Another advantage of the ice bank tank is the possibility to store cooling capacity in the water/ice mixture. When warm fluids enter a tank, an ice bank tank can cool this fluid much faster than a direct expansion tank. Furthermore, this effect can be reached with a relatively modest condensing unit. This can be an advantage in area's where the electricity system can not handle big peaks in energy consumption (as a direct-expansion-tank does, during cooling). The ice-bank cooling priciple is very popular in countries with a tropical climate.
The Packo RM/IB model has a capacity range of 1600 to 7150 litres.
| Tank type | Max. Capacity (in litres) |
A (in mm.) |
B (in mm.) |
C (in mm.) |
| RM/IB 1600 | 1673 | 2185 | 1302 | 1825 - 11945 |
| RM/IB 2200 | 2235 | 2818 | 1302 | 1825 - 11945 |
| RM/IB 2800 | 2806 | 2009 | 1800 | 1996 - 2116 |
| RM/IB 3300 | 3367 | 2350 | 1800 | 1996 - 2116 |
| RM/IB 3800 | 3878 | 2665 | 1800 | 1996 - 2116 |
| RM/IB 4400 | 4490 | 3033 | 1800 | 1996 - 2116 |
| RM/IB 5000 | 5051 | 3374 | 1800 | 1996 - 2116 |
| RM/IB 6000 | 6122 | 3374 | 1800 | 2269 - 2389 |
| RM/IB 7150 | 7296 | 4000 | 1800 | 2269 - 2389 |
For smaller quantities of milk Packo also has open tanks, that is, tanks that - instead of a manhole - have huge lids that cover the entire top of the inner tank. These tanks usually do not have a automatic cleaning unit, and need to be rinsed by hand.
These tanks can be direct expansion tanks or ice-bank tanks.
The Packo direct expansion open tanks (OM/DX) have a capacity range of 300 to 3400 litres.
The Packo ice bank open tanks have a capacity range of 800 to 3400 litres.
Besides cooling, Packo milk cooling tanks can also be used to heat a fluid or simply to keep it isolated and warm/cold. See storage tanks for further information on this issue.
