Home Welcome Reviews Editorials/Press Reference Shopping Mall Links Photo Archive Search Contact
Grove 4100 L-1 Mobile Crane - Mammoet

Maker:  Conrad
Model No:  2119/05
Scale:  1:50
Review Date:  June 2022

Conrad Index
Mobile Crane Index

Cranes Etc Model Rating
Packaging   (max 10) 7
Detail   (max 30) 25
Features   (max 20) 17
Quality   (max 25) 18
Price   (max 15) 9
Overall   (max 100) 76%


Grove 4100 L-1 Mobile Crane - Mammoet Video.  
Mammoet branded box.
As always, it looks great in red and black.
Wheel chocks at the back.
Detailed graphics add realism.
Fly jib mounted for transport.
About to self ballast.
Full counterweight fitted.
Top section is very thin.
Full main boom.

The Grove 4100 L-1 has a maximum capacity of 100 tonnes), and a maximum system height of around 78m. 

This model is in the colours of the Dutch specialist Mammoet.


The model comes in a Mammoet branded box sleeve which encloses expanded polystyrene trays.

The review model had no defects or missing parts.  A forward mirror is provided for the carrier cab but the design of the model does not facilitate its attachment.

There are a number of parts to the model and it is surprising that no instructions are included with the model.

A Mammoet Collector Card with unique serial number is included.


The carrier chassis has the drive transmission modelled in plastic.  The plastic wheels look good with highlighted hubs, and the large tyres have a good tread pattern. 

The carrier cab looks very good and the graphics are sharp.  It lacks a tying-off point for the hook at the front so realistic transport poses are more difficult.  There is a realistic UK number plate.

Behind the cab there are excellent fine mesh grilles and there is a Mammoet fleet number.  The engine area has a detailed exhaust and the carrier deck has textured surfaces.  At the rear a set of wheel chocks is modelled.

The outriggers are two stage with the inner sections being tough plastic with a poor colour match.  They have chevron graphics applied to the posts and, the outrigger pistons are smooth when extended, and they have plastic pads.

The crane cab has a windscreen wiper and lights, and the grab rails are metal.  There are some very sharp tiny graphics which give the model a realistic look.  Inside, the detail is good.  The counterweight is fully sectionalised.

The large main boom ram has a plastic jacket with a colour match which is very slightly off.  The boom has detail on the lowest boom section including cable drums.  The top section has Mammoet graphics but it it has a very thin profile.  There are metal sheaves in the boom head.

The swingaway jib is a nice metal lattice casting with a plastic telescopic section which has an excellent colour match. All sheaves are metal.

The hook block has three sheaves.  A single line hook would have been a worthwhile inclusion.


The axles are modelled as linked pairs with reasonable steering angles.  However, the real crane's axles 3 and 4 can be steered independently.  There is working suspension.

The outriggers extend and the pistons screw down.  Plastic pads clip on securely.  The outriggers can just about support the crane wheels-free, but there is bending visible in the beams.

The crane cab tilts and can hold any pose.  It has an extending step.

The counterweight is fully segmented.

The handrail at the winch folds up and down.

The boom is raised using the very large ram which has a locking mechanism which is tightened using a supplied key.  It works well enough if fully tightened but it can be a little uncertain . 

The telescopic sections extend and lock into place when full extension is reached. 

The winch drums can only be turned by finger on the drum, and the brake is by means of friction rather than a positive lock.

The fly jib can be installed and has a telescopic inner section.  It is hydraulically adjustable for setting offset angles.


This a typically robust Conrad model.  Some of the plastic parts would have benefitted from a better colour match.

The paintwork is very good as are the graphics.


It is fair value for a limited edition.


This is a good looking crane model in Mammoet colours.  .The standard of detailing is very good and most of the functionality works well.  A set of instructions would help a novice collector.


The model appeared in May 2022 and was a limited edition of 300 models.
The parts.
Profile view.  A chain (not included with the model) is tied on to a cab step to attach the hook.
Decent steering angle.
Excellent mesh grille behind the cab.
On the road.
Detail behind the carrier cab.
Seven section boom.
Tilting cab.
Angled and telescope jib.