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Demag AC 55-3 Mobile Crane

Maker:  Conrad
Model No:  2116/01
Scale:  1:50
Review Date:  March 2017

Conrad Index
Mobile Crane Index

Cranes Etc Model Rating
Packaging   (max 10) 8
Detail   (max 30) 23
Features   (max 20) 16
Quality   (max 25) 20
Price   (max 15) 9
Overall   (max 100) 76%


Demag AC 55-3 / Terex Challenger 3160 Mobile Crane video [Youku video]
Demag style box.
Good steering.
Nice cab.
Tilting cab.
Maximum extension.
Placing a column.
With the Terex Challenger 3160.

The Demag AC 55-3 is a 55 tonne capacity mobile crane with a main boom length and system length of 50m.

This crane was previously branded as the Terex Challenger 3160.


The model comes in two expanded polystyrene trays held together by a picture sleeve which has a photo of the real machine. 

There were no missing parts or defects on the review model.

An instruction sheet is included which details the attachment of the counterweight.  A number of mirrors have to be attached.


There is little detail on the underside of the chassis with the steering mechanism for the axles being purely functional, and there is no drive train whatsoever.  The wheels have good all terrain tyres.

The outrigger beams are made of tough plastic and the pistons are standard screw threads, with plastic pads.

The driving cab has four mirrors, although not all are silvered, and stylised beacon lights on the roof.  The headlights have small plastic lenses and there is a towing hitch although the hook cannot fix onto it directly whilst travelling.  Interior detail inside the cab is reasonable.  There are no number plates, as this is a generic crane rather than one in a fleet.

Behind the cab, the carrier deck has very nice diamond plated anti-slip surfaces and a ladder is formed within the casting.  At the rear of the carrier the details are simple with the lights painted.

The crane cab has plastic grab rails and inside there is an operator's seat and controls, with the computer console having detail.  The rest of the body is simple, but a slewing motor is a nice detail.  The counterweight comes as a fixed part on the crane and a separate slab which can be carried on the deck. 

The boom sections are diecast metal and fairly simple, and the top section of the telescope ends up narrow due to the modelling tolerances in diecast.  There is a small spooling drum on the lowest section.  In the boom head the pulleys are metal. 

A twin pulley hook is provided, and the pulleys are metal, and the block has nice red and white stripes.


The steering works very well and each axle steers independently, allowing any mode to be posed. 

The outrigger beams are single stage and can be pulled out to any extension and the pads lowered.  They can hold the weight of the crane.

The crane cab tilts smoothly to a reasonable angle.

A very good feature is the counterweight attachment mechanism which can be used realistically on the model.   Two spring loaded pins can be pushed down to engage the counterweight and lift it into the working position, like the real crane.

All the usual crane functions work fine with the crane rotating and the boom able to be set at a reasonable angle.  The boom cylinder is stiff enough to hold a pose. 

The six section telescopic boom can be extended to full length and each section has the usual locking mechanism to prevent the boom retracting.

The winch is operated by turning the winch drum directly and it has enough friction to hold a reasonable load.  The configuration of the hook block limits the reeving options to four falls of rope.


The model is robust and strong, with a high metal content.

The paintwork and graphics are very good, with the Demag colour scheme producing an attractive model.


It is fully priced for a three axle crane model.


It is nice to see the Demag name make a comeback and this is a typically robust model from Conrad, with nice functionality in the counterweight attachment.  In terms of detailing the model is reasonably good.


The model was first announced in Terex colours as the Challenger 3160 at the Bauma Exhibition in 2016 and was available at the end of that year.  This version in Demag colours appeared in February 2017.
Smart Demag colour scheme.
Profile view 
Simple underneath, with no transmission detailing.
Nice diamond plating behind the cab.
At work.
Good boom profile.