Egis FrostGlide F120

Below zero, doors fail differently: gaskets freeze to frames, condensation becomes ice, and a door that sealed perfectly at +4 C will not close at -25 C. The FrostGlide F120 is engineered for the freezer band from 0 down to -28 C. Its 120 mm high-density polyurethane leaf, heated frame and low-temperature EPDM gasket system are designed around one goal — the door must close and seal fully, every cycle, at -28 C.

The heated frame is the key detail. At freezer temperatures the frame line is where moist ambient air condenses and freezes; ice builds up, the gasket cannot seat, and the seal degrades cycle by cycle until the door stands permanently ajar. The F120's frame heating keeps the sealing surfaces above freezing, while the double low-temperature gasket stays flexible at -28 C instead of turning brittle. The result is a door that seals like a chiller door but survives like a freezer door.

Operation is automatic at 0.4–0.8 m/s with manual backup, in single or double-leaf configurations for openings from 1000 to 4000 mm wide and 2200 to 4000 mm high — covering personnel doors through to full pallet-transfer openings. The food-safe coated steel face (stainless optional) handles washdown, and the drive's safety package follows the same EN 16005 discipline as the rest of the Egis automatic range.

Ice at the seal is a feedback loop: a little frost prevents full gasket compression, the resulting air leak brings more moisture, which freezes into more frost. The F120 breaks the loop at three points. First, the frame and threshold heating holds the sealing faces above 0 C so condensate cannot freeze there. Second, the low-temperature EPDM compound remains elastic at -28 C, so the gasket compresses fully instead of bridging over frost. Third, the down-and-in style seating action wipes and compresses the gasket in one motion rather than dragging across it.

The 120 mm injected core serves the -28 C band the way the C80's 80 mm serves the chiller band: matched insulation thickness for the temperature duty, keeping the leaf light enough for fast automatic cycling while holding the room's temperature with margin.