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Ice banks

HM offers a comprehensive product range for ice banks. Our plants are all manufactured at the main plant in Balingen and continuously developed or optimized here.

What is an ice bank?

An ice bankis a thermal energy storage. They are the optimal refrigeration system for breweries, dairies and the food industry. A very high cold output is needed there briefly in the form of cold water or iced water. If this cold output were produced synchronously with the refrigeration demand, this would require very large refrigeration plants with a high electrical connection value.

Therefore, storing cold in the form of ice is a common practice for the cooling process in many areas of the food, beverage and pharmaceutical industry.

How does an ice bank work?

A small refrigeration system cools the store for several hours until the necessary amount of energy in the form of ice is reached in the store. If then a large cooling capacity in the system is needed, the ice water is pumped to the appropriate cooling points. The warm water is returned to the storage tank and melts the ice sheets in the storage tank.

Due to this energy storage, the cooling unit can be designed up to 20 times smaller than a conventional chiller.

What can the ice bank be used for?

  • All cooling processes in the range of -3 ° C to +6 ° C where between 1 and 6 times a day a large peak cooling capacity is needed
  • Tank and wort cooling in breweries
  • Dairies
  • Cooktop cooling (Cook and Chill)
  • Food cooling where hot batches need to be cooled quickly

Which products does HM offer?

In the ice bank product range, Hafner-Muschler offers the "ice water" and "glycol ice bank" versions. These are available in the versions "compact", "split" and "water cooled".

The HM devices of the "compact ice bank" series cover a wide range of services. There are 12 power levels from 20 to 260 kW storage capacity to choose from.

All devices are completely factory-made. The main components "ice bank tank", "refrigeration unit", "hydraulics" and "electrical engineering" are coordinated so that the most compact and thus space-saving machine is available. In addition, special attention has been paid to simplicity, longevity and robustness.

The portfolio also includes the variants "Split" and "Water-cooled". In the split version, the resulting waste heat is released to the outside into the atmosphere. The water-cooled version also offers the option of utilizing the waste heat for other processes.

Features of the compact ice bank

  • Very high discharge power with constant cold water temperature of approx. +1 °C
  • Also available as glycol ice bank (a brine temperature up to -3 °C is possible)
  • Cold generation with comparably low cooling units and low electrical connection values
  • All refrigeration units are delivered with efficient standard refrigerant R134a.
  • Due to the low filling volume, a recurring tightness test is not required.
  • Charging of the ice banks in low-rate times is possible.
  • Compact machine ready for connection that can

Ice bank product range R134a

ESP type 













Accumulator capacity

 kWh 30 42 55 65 82 96 120 147 184 22 260

Max. melting output

 kW  23 32 42 49 62 72 90 110 138 165 195

Cold output ice water 0 °C

 kW 3 3.7 5.3 5.3 6.3 8.9 10.8 16.2 16.2 19.2 23

Cold output HafIce -3 °C

 kW 2.7 3.3 4.6 5.3 7.4 9.4 14 14 14 16.7 19.9

Ice water connection

 Zoll   1" 1 1/4"    1 1/2" 2"

Water volume/pressure

 m³/h / bar   3.5 / 2.0 5.5 / 2.0  10 / 2.3  20 / 2.3

Tank content

 Liter 740 900 1,500 1,500 1,900 1,900 2,400 2,700 3,300 3,600


All types are available in the versions "Compact", "Split" and "Water-cooled".

Other ice bank products

A particularly innovative thermal energy storage system is the HM ice storage variant "Smart-ICE". Here, the ice is transported out of the container to the cooling points. As a result, the tube dimensions are significantly smaller and it can be achieved lower temperatures at the cooling points.

You can find more information about HM-Smart-ICE here.