Liebherr LTR 1800

Crawler crane with telescopic boom, based on the components of the Liebherr LTM 1800 (boom and upper structure) and LR 1550 (crawler undercarriage).

 

I built this model many years ago. It is still based on the old 9V components with geared and non-geared motors, as well as micromotors.

 

Motorized functions include:

- Independent drive of left and right crawlers

- Four support rams

- Two support rams on long cantilevered support beams for the erection of long boom systems.

- Slewing of the upper structure

- Four winches

- Independent extension of first and second telescopic boom stage.

- The cab can swing out from transport position

- Auxiliary winch on the front end of the upper structure

 

Further functions include:

- Variable counterweight of more than 4.5 kg, consisting of 12x250g, 4x285g and a base plate of about 500g

- Openable sliding door on tiltable cab

 

The crane can be set up with the telescopic boom alone. Height is then up to 2.4m. A luffing jib can be added, but the boom can't be extended in this mode. Height is also somewhere around 2.4m with a reach of about 1.7m.

Done