Manhole Covers

Lindner adaptor rings serve to level out the differences in height that are caused by the application of new wearing layers

Our system enables corrections to be made without irritating and time-consuming excavation and supporting of all street manhole covers, as can be proved in a very short time.

A strong, non-corrosive threaded connection provides optimum security and safety. The covers are replaced just the same as the originals.

If required, removal of the cover is always possible.

New procedures in road construction using wearing-layer recycling often makes levelling downwards necessary, instead of additive levelling, which has been customary until now.

With our system, planing corrections are possible right from the beginning in these cases.

Technical Information and example...
order form...

Method of Installation

1. Existing manhole cover taken out, bolt removed
2. Lindner adaptor ring inserted
3. Lindner adaptor ring securely bolted down
4. The manhole cover is in this example raised by 57mm.