Home / Equipment / Blast Freezers
Blast Freezers
Evaporators for spiral freezers, freezing tunnels and blast rooms. Each one is designed to the product, the throughput and the defrost method, so there is no table to pick from. Send the freezing rate and the room, and the coil comes back sized.
Best for Spiral freezers, freezing tunnels and blast rooms in food processing.

Spiral Freezer Evaporator
Long coil with the copper circuiting at the open end and hinged stainless access panels, for spiral freezer enclosures.

Tunnel Freezer Evaporator
All stainless, three axial fans in draw-through cowls and clamped stainless drains, built to be washed down every shift.
Configurations

Blast Room Unit
Vertical high-capacity unit with twin stainless fans on top and a coated fin block, for blast freezing rooms.

Freezing Room Evaporator
Stainless unit shown before the fans go in, so you can see the circuiting and the distributor lines.
Specifications
US units, 60 Hz power. Every rating states the condition it was taken at.
- Coil
- 5/8 in copper or stainless tube on a 2 by 2 in pitch
- Fin spacing
- 2.5 or 3 fins per inch, or variable in three or more steps
- Fans
- 31 or 36 in EC, high static, draw-through or blow-through
- Systems
- DX, pumped HFC, CO2, ammonia or secondary coolant
- Defrost
- Water or hot gas. Air, electric, glycol or high-pressure air on request
- Arrangement
- Ceiling hung, floor standing, or blowing down over a narrow line
- Construction
- Food-grade stainless casing, tube and capillary sleeves. Titanium coil option
- Options
- Insulated casing and drain pan, self-closing dampers with heaters, fan ring heaters
- Capacity
- Sized per project from the freezing rate
- Approval
- UL approved
Models and codes
Built per project. The code is issued with your selection.
How to read the code
KBF-S-04x31-0450-W- KBFBlast freezer evaporator
- SType. S spiral, T tunnel, R blast room
- 04x31Fans, then fan diameter in inches
- 0450Selected capacity, MBH, at your freezing rate
- WDefrost. W water, H hot gas, E electric, A air, G glycol
60 Hz. EC fans on 208-230 V/1/60, 208-230 V/3/60 or 460 V/3/60. 49 in fans and larger on a VFD.
Questions buyers ask
What is a blast freezer evaporator?
The coil and fan section that pulls product down to frozen fast inside a spiral, a tunnel or a blast room. It is built for heavy frost load and frequent defrost.
Why is there no model table?
Every unit is designed to the product, the throughput and the defrost method. Send the freezing rate and the enclosure, and the coil comes back sized.
What construction is available?
Food-grade stainless casing, 5/8 in copper or stainless tube, water or hot gas defrost, and fin spacing of 2.5 or 3 fins per inch or variable.
Request a quote
Send us the heat load.
Fluid, flow, ambient and the space you have. A sized selection comes back with the approval marks confirmed.
A person reads it. Send the heat load and a selection comes back.