Mechanical Freezers (IQFs) > Spiral Freezers
Within the past decades, SFT has been designing and manufacturing low-temperature mechanical refrigeration systems for fast freezing of various food products such as fruits, vegetables, red meat, poultry, and bakery, etc. In addition to plate freezers and tunnel freezers, we also have spiral freezers in our product line.
REQUEST A QUOTEThe spiral freezer is a continuous inline belt freezer designed to minimize product weight loss and assure quality with gentle handling during the freezing process. Products are evenly fed from the production line directly onto the loading freezer belt. It quickly transports the product into the low temperature-freezing zone. The belt spirals up or down along the rotating drum until it reaches the top or bottom where the frozen product is gently discharged from the freezer discharge port. Due to the large belt surface available, products can be frozen in single layers or individually for high quality. Because products can maintain their original load-in position throughout the freezing process, sorting after simultaneous freezing of mixed, different products is simplified.
The single drum spiral freezer is designed to enable an easy installation on production floors where space is restricted. The SFT single drum spiral freezer is available as either a conventional low-tension helix or, as an option with a direct drive system which can offer reduced belt tensions and smoother running. The construction of the drum is designed for fast setup and efficient local installation. This flexibility continues throughout various single-drum designs and offers several possibilities for infeed and outfeed conveyors.

BENEFITS
APPLICATIONS
The single drum spiral freezer can freeze a maximum number of products in minimum space, which is especially suited for products needed long retention time. So the spiral freezer is widely used for the following industries.
|
Model |
Freezing Capacity¹ |
Inlet Temp. |
Outlet Temp. |
Freezing Temp. |
Freezing Time |
Refrigerant |
Cold Capacity |
Install Power |
|
SFS-300 |
300 kgs/hr |
+50℃ |
-18℃ |
-35℃ |
15 ~ 75 mins, adjustable |
R22/R404/R717 |
50 kW |
12 kW |
|
SFS-400 |
400 kgs/hr |
+50℃ |
-18℃ |
-35℃ |
15 ~ 75 mins, adjustable |
R22/R404/R717 |
70 kW |
16 kW |
|
SFS-500 |
500 kgs/hr |
+50℃ |
-18℃ |
-35℃ |
20 ~ 100 mins, adjustable |
R22/R404/R717 |
85 kW |
18 kW |
|
SFS-750 |
750 kgs/hr |
+50℃ |
-18℃ |
-35℃ |
20 ~ 100 mins, adjustable |
R22/R404/R717 |
135 kW |
20 kW |
|
SFS-1000 |
1000 kgs/hr |
+50℃ |
-18℃ |
-35℃ |
20 ~ 100 mins, adjustable |
R22/R404/R717 |
170 kW |
25 kW |
Technical data is subject to change without prior notice due to technical development.
Notes:
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