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Grove GRT8100 Rough Terrain Crane

Maker:  Conrad
Model No:  2117
Scale:  1:50
Review Date:  August 2017

Conrad Index
Mobile Crane Index

Cranes Etc Model Rating
Packaging   (max 10) 8
Detail   (max 30) 25
Features   (max 20) 19
Quality   (max 25) 21
Price   (max 15) 10
Overall   (max 100) 83%


Grove GRT8100 Rough Terrain Crane Video.   [Youku Video]
Grove branded box.
Classic RT look.
Detail underneath.
Detailed graphics on the cab.
Hydraulics run to the winches.
Ready for work.
Fly jib offset.
Makes a good load.
At work.
Unloading steel.

The Grove GRT8100 has a maximum capacity of 100 US tons (90 tonnes), and a maximum system height of around 240ft (73m). 


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

The review model had no defects or missing parts.

There is an instruction sheet for the model which is pictorial and it has a list of parts.  There is a key for tightening the boom ram, and this is not referenced in the instructions, and there are no reeving diagrams.


The carrier chassis has the drive transmission modelled in plastic.  The plastic wheels look good and the large rough terrain tyres have a chunky tread pattern. 

The carrier has nice detailing of grilles and there are ladders at each end.  There are attachment points for the hook blocks during transport, and a length of chain would have been a good inclusion.  The lights are painted.

The outriggers are tough plastic and are single stage with an excellent colour match.  They are simple with chevron graphics applied. 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 including a fire extinguisher.  The crane body has hydraulic hoses running to the winches.

The large main boom ram has a plastic jacket with an excellent colour match.  The boom has detail on the lowest boom section including drums and lights.  There are metal sheaves in the boom head.

The bi-fold swingaway jib is a very nice metal lattice casting with a plastic solid section which has an excellent colour match. All sheaves are metal.

The hook block has five sheaves and a single line hook is also included.


The axles steer and the range of movement is very good.  The rear axle has some oscillation. 

Access ladders at both ends fold up and down.

The outriggers are fully functional with extending beams and pistons that screw down with smooth pistons.  Plastic pads clip on securely.  The outriggers are strong enough to support the crane wheels-free.

The crane cab tilts and can hold any pose.

The counterweight is detachable.

The handrails at the winches can fold 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 when fully tightened and it will hold the boom as desired as long as it is tightened enough. 

The telescopic sections extend smoothly 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 run at half or full length.  It is hydraulically adjustable for setting offset angles.


This a typically strong model.  Plastic is used appropriately and it does not show.

The paintwork is very good as are the few graphics.


It is fair value.


This is an impressive rough terrain crane model and its heavy weight adds to the feeling of strength and toughness.  It is very functional, with some very nice detailing.


The model was introduced at the ConExpo Exhibition 2017.
Parts and instruction sheet.
Profile view.
Steering angle is fine.  Outrigger pads clip on.
The securing chains are not included.
Nice grilles.  Smooth pistons.
Detail at the boom head.  The fly jib pins do not look so good.
Full main boom.
On the road.