Steel panel doors are the rounded-corner branch of the cleanroom door range. Their stated design starts with an aluminium alloy rounded corner, which removes the sharp external corner where dust collects and where a passing trolley or shoulder catches an edge. The moving joint is a shaft and shaft-sleeve arrangement whose friction is described as dust-free, a description that matters because a door that sheds particles every time it moves works against the room it serves. The frame sealing strip is stated to seal strongly while reducing noise and insulating sound, so the closed door contributes to both cleanliness and acoustic separation.
The panel itself is colour steel board, described as impact resistant, not easily deformed, and easy to clean. Those three properties belong together in a cleanroom door: impact resistance protects the leaf in a working corridor, dimensional stability keeps the seal line true over time, and easy cleaning keeps the daily cleaning routine short. Size customisation is supported for steel panel doors, and the details of any custom size, including the exact width, height, vision panel size, and lock and closer options, should be confirmed in the inquiry rather than assumed from the brochure sizes.
A steel panel door should be read together with the shared leaf structure page, because the leaf behind the steel panel description carries the full specification: aluminium door frame and aluminium leaf frame, colour-coated or melamine board panel, aluminium honeycomb core, rounded lock operable with the elbow, double-spring rising sweep strip, quiet wear-resistant hinges, internal stiffeners, and an anti-fog double glazed toughened glass vision panel. The steel panel page states the family character, and the leaf structure page states the construction that both families share, so a buyer comparing steel panel against full steel can see what differs and what stays the same.
In practical terms, a steel panel door suits a buyer who wants the rounded-corner, sealing, and cleanability description as the headline, with the shared leaf construction underneath. List each opening with its leaf arrangement and brochure or custom size, its vision panel size, and its lock and closer requirements, and confirm any custom size explicitly. Where a project also needs full steel doors, schedule the two families separately so the panel, forming, and core facts for each family stay attached to the right openings.
- Rounded corners: aluminium alloy rounded-corner design.
- Friction: shaft and shaft-sleeve arrangement, described as dust-free.
- Sealing: frame sealing strip, strong sealing, noise reduction, sound insulation.
- Panel: colour steel board, impact resistant, not easily deformed, easy to clean.
- Custom sizes: supported; details subject to inquiry confirmation.
- Shared leaf: aluminium frames, honeycomb core, elbow lock, rising sweep strip, quiet hinges, anti-fog vision panel.
Steel panel door specification
| Item | Stated fact |
|---|---|
| Corner | Aluminium alloy rounded-corner design |
| Joint | Shaft and shaft-sleeve, friction described as dust-free |
| Sealing | Frame sealing strip: strong sealing, noise reduction, sound insulation |
| Panel | Colour steel board: impact resistant, not easily deformed, easy to clean |
| Sizes | Customisation supported; details subject to confirmation |
How to read the specifications on this page
Dimensions and construction details on this page follow the Lairun product description for the component family shown. Door opening sizes quoted on this site are brochure dimensions: they describe the opening sizes listed in the product brochure, and any non-standard size should be confirmed in the inquiry. Aluminium profile codes are listed by code only; no profile dimension is stated where the product description does not give one. Items that the product description does not specify are marked for inquiry confirmation rather than described as available options, so buyers are not led to assume a mechanism, a load figure, or a material variant that has not been evidenced.
What to put in your inquiry
Send the opening sizes you need, the leaf arrangement, the surface finish you prefer, and the ceiling layout where the components will be installed. State the quantities per size, the site conditions, and the delivery location so the component list can be checked line by line. Where this page lists an item as subject to confirmation, include that item explicitly in your message so it is answered before any order is placed. Please confirm the minimum order quantity and the lead time in your inquiry, because this site does not publish those figures. Certificates are available upon request; please ask for the documents you need and state which project they are for.