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Demag AC 250-5 All Terrain Crane

Maker:  IMC Models
Model No:  31-0084
Scale:  1:50
Review Date:  June 2017


IMC Models Index
Mobile Crane Index


Cranes Etc Model Rating
Packaging   (max 10) 8
Detail   (max 30) 27
Features   (max 20) 17
Quality   (max 25) 21
Price   (max 15) 11
Overall   (max 100) 85%

Footnotes


Demag AC 250-5 All Terrain Crane  [Youku Video]
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Demag branded box.
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Looks good on the road.
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Detailed chassis.
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Many detailed graphics.
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Goes well paired with suitable transport.
Nice graphics on the outrigger beams.  Screw threads are visible on the pistons.
Tilting cab.
 
Long main boom.
Thin walled boom sections.
Decent fly jib.
Rigging the jib.
Maximum fly jib.



The Demag AC 250-5 is a 250 tonne class all terrain crane.  It has a main boom length of 70m, and a maximum system length of 102m.

Packaging

The model comes in a large Demag-branded box.  The model parts are wrapped in soft paper and held within expanded polystyrene trays.

The review model had no missing parts or defects.

The manual is very good.  It describes all aspects of the model, with clear instructions.  A couple of parts are not mentioned and there is no reeving diagram for the hook, but these are minor omissions.  Tools are supplied to assemble and operate the model.

Detail

The chassis is highly detailed with the transmission fully detailed and there are silver tanks.   The tyres are very good with a fine tread pattern and they are mounted on nice wheels.   Soft mud flaps are fixed to the front and rear axles.

The driving cab has a chain for hitching the hook whilst travelling, and the cab is nicely detailed throughout.  Door mirrors, windscreen wipers and beacon lights complete the external detail. 

Behind the driving cab the engine area is excellent with high quality metal work, and other plastic parts.  One ladder is fixed to the deck and four others are movable. 

The outriggers are very good.  The pads have a working pinning mechanism which allows the pads to be fixed in an offset way so they are within the footprint of the crane when the outrigger beams are retracted.  One surprise is that the pistons have visible screw threads when the pads are lowered rather than smooth faces. Tiny graphics add to the realism.  Large metal spreader plates with useable lifting points are also included with the model.

At the rear of the carrier there is a towing hitch with a removable pin, and the lights have plastic lenses.

A particular highlight is the large number of tiny graphics all around the model.

The crane cab has rather large window wipers, and the interior detail is good.  Small graphics enhance the detailing around the crane and there are very nice textured surfaces and soft hoses for the hydraulics.

The counterweight tray has useable lifting points and the counterweight slabs accurately comprise a full configuration. Each slab is nicely formed with sharp graphics, and the Demag name is in relief and painted.

The main boom ram is an excellent metal part with more tiny graphics.  Detailing on the boom includes a couple of spooling drums and other highlighted elements.   The parts for connection of the fly jib during transport are very detailed.  The inner telescope sections have a realistic profile with thin walls.  At the boom head the sheaves are metal, although they are not metal on the real crane.  A hoist cut-off chain is provided.

A lattice fly jib with swing away section is included.  It is metal and the lattice work is reasonably good although some of the joins in parts are quite visible from some angles.

A single three sheave hook block is included and it is good.  The model really needs a separate smaller hook to complement the fly jib. 

Features

The axles are linked in groups of the front three and rear pair, and they can steer independently with reasonable movement so the crane can also be posed with crab steering if required.  Not every steering mode of the real crane can be reproduced.  There is sprung suspension on each axle. 

Ladders on the carrier deck can be rotated and lowered and this works really well.

The outriggers can be extended and lowered, and feature an excellent pad pinning feature with robust pins.  The crane can be supported wheels-free, and the outrigger beams remain reasonably straight.

The operator's cab can be tilted to a good angle, and the side access platform can be extended and retracted.

The counterweight system can be fitted in various configurations, including part being mounted on the carrier deck during self-assembly.

Raising the boom is easy as the locking mechanism on the main boom ram is by means of using a supplied key tightening screws and this works really well, although at maximum angle there is little piston left in the jacket.  

Telescoping the boom is smooth and easy with a spring clip to lock each boom section.  It has locking positions at 50% and 100%.

A key is used to operate the main winch and it has a positive brake system although the winch mechanism moves about a bit in operation.

The fly jib can be attached and reeved in two lengths.  The system for altering the fly jib angle is excellent and uses lockable rams.

Quality

This model is well made and very good quality.  The use of plastic for a few parts is appropriate and done well. 

The paint finish is very good, and the many small graphics are sharp.

Price

It is decent value for a mid-size mobile crane.

Overall

IMC Models has made a really good job of the Demag AC 250-5. It has a high level of detail combined with very good functionality.  Perhaps the main plus point is the realistic appearance.

Footnotes

The model was announced at the Nuremberg Toy Fair 2017.  There are two versions with the other being the AC 220-5, which has a longer main boom with an extra telescopic section.
5% Discount on this model

This model can be obtained with a 5% discount at www.shop.imcmodels.eu.  Enter the discount code CRANESETC5% at the check out.
 
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Parts out of the box.
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Steering angles are good.
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Large spooling drum.  
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More tiny graphics.
 
Convincing.
Loading counterweight.
Excellent detail behind the cab.
A single line hook would look better.
Extra detail added into the winch drum.