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Mercedes-Benz Arocs 8x4 + Liebherr HTM 905 Mixer

Maker:  Conrad
Model No:  78234/04
Scale:  1:50
Review Date:  November 2021

Conrad Index
Concrete Equipment Index

Cranes Etc Model Rating
Packaging   (max 10) 7
Detail   (max 30) 20
Features   (max 20) 15
Quality   (max 25) 20
Price   (max 15) 10
Overall   (max 100) 72%


Mercedes-Benz Arocs 4x2 + Liebherr HTM 905 Mixer Video
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Liebherr branded box.
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Profile view.
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Side chutes are fixed in position.
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Drive shaft to the rear wheels is missing.
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Nice wheels.
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Liebherr graphic on the water tank.
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Poses well.

This model is a Liebherr HTM 905 Mixer mounted on a Mercedes-Benz Arocs 8x4 chassis. 


The model comes in a Liebherr branded box with the model protected by a foam rubber insert. 

The review model had no defects and no missing parts. 

There is no information about the real machine or the model.  The only assembly is fitting door mirrors and a roof aerial.


The chassis detailing is mostly good with the rear axles and suspension modelled in plastic.  The steering is modelled in a functional way. However, the prop shaft is missing between the engine and the driven axles which looks odd.  The wheel hubs are very smart. 

The cab detailing is good with horns and aerial on the roof, and the lights at the front have plastic lenses.  The standard of the paintwork and graphics around the cab is very good.   The number plate has the Liebherr name.  Inside the cab details are reasonable.

Behind the cab the chassis ahs metal tanks and boxes, and at the rear the lights are painted.

The mixer drum is metal with a plastic ring at the rear bearing.  The drive motor and water tank at the front are also metal as is the access platform and ladder at the rear. 

The chute is also metal and there are two fixed chute extensions above the rear wheels.


The front axles have steering but they are not linked.  The model can be posed with a hard lock on the steering, but the axles tend to go their own way when the model is rolled.

The rear driven axles have a degree of vertical movement to simulate suspension.

The rear bumper can be rotated up and down.

The drum turns smoothly and the rear chute can be fully rotated to a discharge position.


This is a relatively heavy model with a high metal content.  The paintwork and graphics are mostly very good, with a few marks on the drum.


The model is reasonable value.


This is a typical Conrad mixer truck model which is robust and has a high metal content. There is some economising on the chassis with the unlinked steering and the lack of drive shaft details.


This version of the model was a 2021 release by Conrad, and was mainly a promotional model for sale in the Liebherr shop.

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Very nice decoration.
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Decent steering angle.
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On the road.
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Chute rotates.
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Rear bumper bar can be lowered.
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Feeding a concrete pump.