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Caterpillar M323F Railroad Wheeled Excavator

Maker:  Diecast Masters
Model No:  85612
Scale:  1:87
Review Date:  October 2019

Diecast Masters Index
Rail Mounted Equipment Index

Cranes Etc Model Rating
Packaging   (max 10) 9
Detail   (max 30) 24
Features   (max 20) 15
Quality   (max 25) 20
Price   (max 15) 11
Overall   (max 100) 79%


Caterpillar M323F Railroad Wheeled Excavator Video  [Youku video]
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Caterpillar branded tin.
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Grab hooked on for transport.
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Tie grab open.
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Maximum depth of dig.
Simple hydraulics.
Tamper tool.

The Caterpillar M323F Railroad Wheeled Excavator weighs around 23 tonnes.

It is designed for use in a railway environment, and it can traverse along railway lines.


The model comes in the usual excellent packaging.  There is an outer shipping carton which contains a tin which is protected by a nylon bag.  The tin is high quality and includes pictures and details about the real machine.

The review model had no missing parts or defects.

A mini catalogue of the Diecast Masters range is included.  A simple instruction sheet describes how the included tools can be fitted.


The undercarriage is metal with plastic side protection bars, and there are lights detailed at each end.  The road wheels are detailed.  The rail wheels are metal and nicely modelled, and there is a support bar for use by a grab when travelling.

The cab is metal with a plastic mirror and the grab rail is modelled as a solid part of the cab frame.  There is a windscreen wiper and lights are modelled also. Inside the detail is very good with Cat on the seat back.  There is no operator figure supplied with this model. 

The body casting has indented panels and the Cat graphics are very sharp with the rear lights painted.  Detailing on top is very good with highlighted parts . 

The two piece boom and stick connections are made by painted rivets and they enhance the look of the model.   There is no hydraulic hose detailing but sharp graphics add detail.  The quick connector at the end of the stick is plastic.

Three work tools are provided.  A digging bucket is a  plastic part.  A picker for railway sleepers (ties) is modelled in plastic and a tamper frame is also in plastic.


The road wheels roll well but there is no steering.

The rail bogies can be raised and lowered.

The model rotates well.

The boom, stick and movement of the quick connector are good having regard for the scale.  Digging at depth is a little compromised.

The three tools give a variety of display options.  They clip on to the connector easily.  The grab has opening jaws.


It is a small model in 1/87 scale and will need to be handled with care having regard to some of the smaller parts.

The paint is very good and the graphics are sharp.


It is reasonable value.


The Diecast Masters packaging and presentation is excellent.  It is nice to see a Caterpillar road/rail model and it will look very good on an HO scale model railway layout.


The model became available in October 2019.

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The parts out of the box.
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Up on the rail wheels.
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Decent cab detailing.
Profile view.
On top.
Curved counterweight.