Locks and closers are the smallest parts of a cleanroom door and the parts most likely to be underspecified. The lock that is stated for the cleanroom leaf is a rounded lock designed so it can be opened with the elbow, which suits gloved hands and hands that must stay clean. Beyond that stated lock, the product description records that locks and closers are offered in multiple options, without itemising the options by model or by specification. This page therefore treats lock and closer selection as a confirmation exercise, not as a catalogue choice.
That approach has a practical consequence for scheduling. A door schedule should carry a lock and closer line per opening, even if the line initially reads as subject to confirmation, because a blank line is how a project ends up with a default fitting that nobody chose. List the operating requirement instead of a model name where the model is not yet known: elbow operation, hold-open behaviour if needed, closing force expectations, and any access control interface the room requires. Those requirements let the supplier match an option to the opening, and they keep the decision visible in the schedule.
Sealing is the background against which locks and closers should be judged. The frame sealing strip gives strong sealing with noise reduction and sound insulation, and the double-spring rising sweep strip settles smoothly, runs quietly, and seals well at the floor. A closer that slams the leaf will defeat both seals over time, and a lock that holds the leaf off its seal line will do the same, so the lock, the closer, and the seals should be confirmed as a set. Hinges complete the set: quiet, wear-resistant hinges that produce no metal powder over long use keep the leaf aligned on its seals for the life of the door.
- Stated lock: rounded lock, operable with the elbow.
- Options: locks and closers in multiple options; exact types subject to confirmation.
- Schedule per opening: lock requirement, closer requirement, hold-open behaviour, access interface.
- Sealing set: frame sealing strip plus rising sweep strip; confirm lock, closer and seals together.
- Hinges: quiet, wear resistant, no metal powder over long use.
Lock and closer schedule lines
| Schedule line | What to write |
|---|---|
| Lock | Rounded elbow lock as stated; other options subject to confirmation |
| Closer | Requirement per opening; exact type subject to confirmation |
| Seals | Frame sealing strip and rising sweep strip, confirmed as a set with lock and closer |
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.