Cold Room Swing Door Structure, Sealing Strip & Electric Heater Anti-Frost Design
Cold room swing door is widely used for small and medium cold room, simple structure, low cost, manual push-pull opening. Main components: door leaf PU panel, door frame, hinge, locking handle, multi-layer rubber sealing strip, door bottom air curtain or sealing brush. Sealing strip is core part; double EPDM rubber sealing loop, elastic, low temperature resistant, not easy to harden at -30℃. Door frame heating wire is embedded inside frame; heat prevents sealing strip from freezing and sticking to door leaf in low temperature cold room. Xiteliduo cold room swing door HS 940600 matches 100/120/150/200mm door leaf thickness consistent with wall panel specification. Swing door suits pedestrian and manual trolley passage; not fit for frequent forklift high frequency access. Door bottom gap is big heat leakage point; automatic drop seal rises when door closes, falls when door opens to reduce gap heat infiltration. If door frame heater fails, sealing strip freezes, door cannot open smoothly and frost accumulates continuously on door edge. Swing door for food cold room can be equipped with observation window, tempered double hollow anti-frost glass. Refrigeration maintenance & repair company checks EPDM sealing strip aging, crack and door frame heater resistance value periodically.
FAQ
- What rubber material for cold room door sealing strip? Low temperature resistant EPDM rubber.
- What is the purpose of door frame heating cable? Prevent sealing strip freezing and sticking in low temperature environment.
- What is automatic drop seal at door bottom? It closes the bottom gap when door shut to reduce heat leakage.
- What scenario is swing door suitable for? Pedestrian and manual trolley cold room, low opening frequency.
- What material for cold room observation window glass? Double layer hollow tempered anti-frost glass.
- Should door leaf thickness match wall panel thickness? Yes, keep consistent insulation thickness.
- What happens when EPDM sealing strip ages and hardens? Gap appears, heat leaks and frost forms along door edge.
- What fault if door cannot be opened after long time shutdown? Door frame heater damaged, sealing strip frozen stuck.
