Sanitary Belt Conveyors

Freezer & Arctic Conveyors (−40 °F)

A freezer conveyor (or arctic conveyor) moves product through and out of sub-zero rooms on components rated for sustained operation to −40 °F, with the freezer-to-ambient transition designed so condensation and frost do not stop the belt.

AQS builds freezer conveyors on the same continuous TIG-welded 304 or 316 stainless frames as every other belt conveyor, designed to 3-A Sanitary Standards, then specifies every moving part for the cold: low-temperature lubricants and seals, freezer-rated motors, drive cards, and photo eyes, and belting that stays flexible at −40 °F. Frost builds on a running belt — the marshmallow line pictured above runs frosted every shift — so the frame is open, sloped, and reachable for a quick de-ice and washdown.

The point where product leaves the freezer is where most freezer conveyors fail: warm, wet air meets a cold belt and the frame sweats onto the floor. AQS manages that transition with drainage geometry and, where the room needs it, insulated frame members that keep ice off the drive.

Frosted blue cleated modular belt at the discharge of a freezer conveyor inside a marshmallow production freezer
Where It's Used

Where a freezer conveyor earns its place

Spiral and tunnel freezer discharge

Carry frozen product out of the freezer and into packaging on a belt that is still running cold, with condensation managed where the room changes.

Blast freezer transport

Move racks, trays, or loose product inside the blast freezer on conveyors that live at −40 °F around the clock.

Cold storage staging

Accumulate cases and pallets in the freezer warehouse before shipping on freezer-rated MDR and pallet conveyors.

Ice cream and frozen bakery lines

Hot product into the tunnel, frozen product out, with belts and cleats chosen for the product at both temperatures.

Construction for This Type

How AQS builds it

Rated to −40 °F

Motors, gearboxes, drive cards, sensors, and belting are specified for sustained sub-zero operation, not derated ambient parts.

Low-temperature seals and lubricants

Bearings and gearboxes use lubricants that stay fluid in the cold; seals stay pliable so they keep water out through freeze–thaw cycles.

Condensation management

Sloped frames and drainage at the freezer-to-ambient transition, with insulated frame options where sweat and ice would otherwise reach the drive.

Frost-tolerant belting

Cleated and flat modular belts from Intralox or Habasit chosen for flexibility and grip at temperature, on nosebars that shed ice.

Welded, open stainless frame

Continuous TIG welds on 304 or 316 stainless, open sides, no closed cavities that can fill with ice — designed to 3-A Sanitary Standards.

Freezer-rated MDR and pallet options

The same cold specification carries into 24V MDR and pallet conveyors for staging cases and pallets inside cold storage.

Specifications

Typical ranges

Every AQS conveyor is engineered to order around the product, the rate, and the room. The ranges below are typical, not limits — tell us what the line needs and we size to it.

Freezer & Arctic Conveyors (−40 °F) — as built by AQS
Temperature ratingSustained operation to −40 °F / −40 °C
ConfigurationsStraight, incline, Z-frame, radius; MDR and pallet conveyors in freezer-rated builds
BeltFreezer-rated flat or cleated modular belt (Intralox, Habasit); FDA-approved materials
Frame304 or 316 stainless, continuous TIG-welded, sloped for drainage; insulated members optional
ProtectionIP65 washdown standard; IP69K available
ControlsFreezer-rated motors and sensors; Allen-Bradley controls on request
Ingress protection tiers
RatingProtects against
IP54Dust-protected, splash-resistant
IP65Dust-tight, low-pressure water jets
IP66Dust-tight, high-pressure water jets
IP67Dust-tight, temporary immersion
IP69KDust-tight, high-pressure/high-temp
Frequently Asked

Common Questions

Tell us about your line

Send us the product, the rate, the room it runs in, and how it gets washed down. An AQS engineer comes back with a layout sketch and a budgetary range — no catalog, no sales script.

Tell Us About Your Line →