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Terex CC 8800 Boom Booster  Crawler Crane - Mammoet

Maker:  Conrad
Model No:  2745/01
Scale:  1:50
Review Date:  July 2020

Conrad Index
Crawler Crane Index

Cranes Etc Model Rating
Packaging   (max 10) 8
Detail   (max 30) 26
Features   (max 20) 18
Quality   (max 25) 20
Price   (max 15) 12
Overall   (max 100) 84%


Terex CC 8800 Boom Booster  Crawler Crane - Mammoet video.  [Youku video]
The large boxes.
Heavy middle tray of box 1.
Top tray of box 2.
Manual and Collector Card.
Many parts can be used as transport loads, but not all.
Back mast fitted.
Standard configuration (HSSL/SSL).
Large winch drums.
Walkway and safety line.
Back mast detail.
Lifting a load.  Note the rigging is indicative, not realistic!
Heavy model engineering.
Fixed strut jib,
Luffing jib.
Moving the CC 8800 on SPMTs.

The CC 8800 crawler crane is one of the largest in the world and the lifting ability is further enhanced by the strength added by the 'Boom Booster'.  The crane was originally sold under the Terex brand, then Terex Demag, then Demag, and at the time of the review it is now Demag, part of the Tadano Group.

The model was first exhibited at the 2004 Nuremberg Toy Fair where it was voted a winner in the Innovation category.  A luffing jib kit was released later. This updated limited edition including Boom Booster is in arun of 400 models and is the colours of Mammoet, the Dutch heavy haulage and lifting specialist.


The model packaging is large and heavy, and consists of two boxes with a total weight of around 24kg.  Each box has a picture sleeve which wraps three expanded polystyrene trays together, with a lid for the top tray. 

There were no missing parts on the review model.  The heavy lift boom head was incorrectly assembled in the factory with the pulley frames upside down,  but it was easily corrected by unpinning and re-pinning the affected parts.

A 24 page printed manual is included.  It has photos and graphics of the real crane in various configurations.  Photos of the box trays have the parts annotated so they can be identified during the assembly. 

The manual does not do justice to the model.  It is a combination of old information from the original model together with new Boom Booster detail.  But it does not describe how to assemble the model in configurations other than the set-up shown on the front cover.  It is surprising there is no information on building the luffing jib given that the kit was originally sold separately.  Also disappointing is that there are a number of errors in the manual, some of them critical, and it is understood an electronic update will be made available.

The assembly is described with a series of staged photographs with the components at each stage identified.   These are mostly accurate.  The pendant configurations are not properly identified and the reeving diagrams are poor quality. 

The model parts fit together very well with just the occasional removal of excess paint from some connection holes required.  Plastic bolts are used to join the parts.

Full assembly of the complete crane takes many hours and changing the configuration is lengthy too with the main hook having to be re-reeved each time which can be frustrating and painstaking. 

A numbered Mammoet Collector Card is included which states a run of 400 models was produced.


Each track frame is huge and is not far short of the size of a five axle crane model.  The frames are detailed with cast flanges and lugs, but no graphics.  There is some fine detail in the drive sprockets.  Each track is made up of a large number of individual metal links and there are working rollers top and bottom.  The links are pinned together and are very good. 

The undercarriage mid section is pinned to two cross frames and there is a screw jack at both ends of each cross frame which replicates the hydraulic jacks of the original.  With these three parts assembled a very heavy H-section (in plan) is created which can stand on the jacks awaiting the attachment of the track frames.  

Plastic pins are used throughout and although they work well their grey colour stands out and it is a pity they were not made in black to match the Mammoet colour scheme.

Metal walkway plates and ladders sit on top of the undercarraige.  Two ballast trays are also attached and these carry five pieces each.  The manual shows 101 ballast weights used in total, but 107 are included with the model.  Each one is metal and cast with lifting lugs, and has chevron graphics.  These weights account for a significant part of the weight of the overall model.

The crane superstructure is another very heavy piece and connects to the chassis with a large screw.  This arrangement works well enough as long as the crew is tightened enough so there is no rocking.   Three winch drums are fitted, with a fourth at the rear for the back mast.  These drums are not pre-strung so expect to spend some time feeding the supplied ropes onto the drums.  Reeving the back mast is straightforward but there is a complication.  The drum is split so that two independent lines work in unison to control the back mast luffing.  On the model care is needed to achieve equal tension in each line and this problem is accentuated by the bridle for the back mast being a single piece which therefore does not act as a tension equaliser.  Almost all parts on the superstructure are metal, with the exception being hydraulic cylinder casings.  The pulleys are metal.

The large cab and engine house comes as a single piece complete with permanently fixed walkways which are modelled in metal.  The cab has reasonable internal detail.  Windscreen wipers are moulded into the windscreen and would have looked better as separate pieces or at least painted black.  Hydraulic lines from the motor house to the winches are supplied as separate lengths of plastic which can be fixed through the appropriate holes.  This is a simple and effective detail. Small graphics on the engine house add detail and include a fleet number.

The main boom, back mast and jib sections are metal and very well made.   They have the typical Mammoet colour scheme of red with black tips.  This version of the model is enhanced with metal mesh walkways clipped into place and having posts for the supplied metal safety line.  It is a pity the clips were not red or black to match the Mammoet colour scheme.  Terex signboards clip to the boom and back mast.

The main boom head comes as a pre-assembled piece which consists of three parts pinned together.  Pulleys on all sections are metal and free-rolling.   All the pendant bars on the model are high grade plastic and these are strong enough to, for example, lift the ballast carrier fully loaded.

The boom booster is assembled from numerous separate components which are pinned together.  All the parts are metal except the bolts and the walkway clips. An immensely strong and heavy boom booster is created which is something of a model engineering triumph.

The ballast carrier is larger on its own than most models in this scale.  Two rotating axles have four tyres each with plastic hubs.  Four screw jacks are provided on each axle and four large jacks are on the corners of the carrier.  The detailing of the carrier is simple with no walkway or ladders. The carrier connects to the crane superstructure through a telescopic tube and lattice section so the distance between crane and carrier can be increased for the heaviest lifts. 

The hook block is a gigantic piece almost all of metal.  The pulleys are metal and the connecting pins which hold the parts of the block together are plastic.  Reeving the hook is a challenge because of the number of falls of rope involved and the somewhat tricky nature of feeding the rope through the pulleys.


The tracks are excellent and work well when carrying the weight of the model.  Each track frame is spring loaded at one end so removing the tracks is readily done by compressing the ends and detaching the tracks.

The cab door slides open and shut.

The jacks on the undercarriage and ballast carrier can be screwed down.

The crane slews well with the ballast carrier.  The ballast carrier wheel sets can be rotated to allow the crane to tow the carrier.

The large hook block is modular and can be broken down to form two separate smaller hook blocks.

Operating the winches is done by turning the appropriate drums by hand.  This becomes a lengthy and almost painful exercise for the fingers, and it would have been helpful to supply a key allowing the drums to be properly operated using a powered screwdriver.  The winches rely on friction to hold a load and this works well enough.

The big plus point of the model is that the crane can be configured in a variety of set ups, although alterations are not trivial because of the amount of re-reeving that may be required.  The tallest configuration of the model is over 10ft  / 3.2m.

Many parts can also be used as realistic transport loads but some parts cannot be reduced in size adequately.


This a very well made and immensely strong model, and the boom booster in particular is excellent. 

The paintwork and graphics are generally very good. However, the painting of the black tips of boom sections has been achieved by over-painting the red paint.  This has not worked well with the black paint easily flaking.


This is a model with a high price tag.  However, a lot is provided for the money and in terms of kilos of metal alone the model represents good value.

It is also a very collectible limited edition. 


The CC 8800 with Boom Booster is one of those models which is huge and impressive, and represents a feat of model engineering.   It is strong and robust, with a very high metal content.  As it is based on a model which first appeared in 2004, the detail level is not the highest, but a number of improvements have been made by Conrad.

The model has flexibility as a key feature with many different configurations possible, and a better manual would make it easier to get the best from the model.

Overall this model is an excellent display piece.


The model first became available in 2004 in Terex colours.  At the BAUMA exhibition in April 2004, the luffing fly jib attachment was introduced (model number 98011). Additional boom sections were sold separately from 2005 (model number 99906).  A limited edition run of 250 models in 'Sarens' livery appeared in March 2006.

The model with Boom Booster first appeared at the ConExpo Exhibition in 2020 and was released in July 2020.  
The top tray of box 1.
Very heavy bottom tray of box 1.
Middle tray of box 2.
Bottom tray of box 2.
Assembly in progress.
Huge counterweight stacks.
Massive boom booster sections.
Sliding cab door.
Huge ballast carrier.
Boom booster frames can be used for transport.
Massive hook block.
Main boom with Boom Booster (BSSL).  This is not the tallest configuration possible with the parts in the box.
Boom booster and fixed strut jib ( BSSL + LF)
Boom booster + luffing fly jib ( BSWSL).
Interesting and unusual pose.