This motorised Liebherr crawlercrane works as dragline .
The diecastmodel is the Conrad 1/50 model HS843 with draglinebucket
This model is for sale(much expensive)more infomations please send me an pm
here is the new 1/50 scalemodel from kyosho which operates full functionally with rc-controlled table.
There are 6 micromotors in the bulddozer for move forward-backward and raise and lower the blade.Also you can tilt whit the other two motors the blade.Great work!