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1:50th scale Menzi Muck A91 4x4 Plus P-Matic Excavator Presented here is the 1:50th scale Menzi Muck A91 4x4 P-Matic Mobile Spider Excavator from Ros. The A91 is an amazing concept of go anywhere excavator and the model has captured every aspect of the full sized machine perfectly. Powered by a 4-cylinder John Deere 4045HF285 diesel engine, the A91 is both agile and powerful with two phase traction drive of all four, equally sized wheels and a load sensing hydraulic system. The most striking feature of the Menzi Muck range is the modular designed chassis with articulating and pivoting arms which allow the machine to be used in some of the most demanding conditions. The model is based on the 4x4 Plus P-Matic version of the A91 with four equally sized, wide wheels and tyres which have a detailed moulded tread pattern. All the wheels are freely rotating with small grey wheel hubs. The upper structure has been accurately modeled with the large glass cab giving a great view of the highly detailed interior. All the controls can be seen with an excellent paint finish on the cab frame with the tiny front frame structure and black window seals all nicely highlighted. It is also good to see the seat painted in an authentic colour which does add to the realistic look. The rear view mirrors have been added to each side of the cab and have integrated work lights, complete with silver painted lenses.
There are two different designs of arms on the chassis, with the fixed wheels housing the hydraulically adjustable support feet which have pivoting pads with cast teeth. The linkage on the support feet has a good amount of movement for such a small hydraulic piston.
The main digging boom features and extending stick with tilting grading bucket. The use of flexible hydraulic piping really adds to the model and the silver highlighting of the fixed pipe work is another nice touch, especially the auxiliary valve block. The boom and stick have a good degree of movement and the hydraulics are stiff allowing the boom to be posed as required. The A91 4x4 Plus P-Matic is an unusual and interesting machine and Ros have done an amazing job in producing an authentic and accurate replica in 1:50th scale. The high quality paint finish and decal printing combined with the great flexibility of the model is testament to the engineering work Ros have put into this release. For more information on the Menzi Muck A91, and the other machines in the range, visit the MenziMuck website where you can download the technical details and view videos of the machines at work.
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