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Caterpillar 309 CR Mini Hydraulic Excavator

Maker:  Diecast Masters
Model No:  85592
Scale:  1:50
Review Date:  July 2019

Diecast Masters Index
Earthmoving Equipment Index

Cranes Etc Model Rating
Packaging   (max 10) 9
Detail   (max 30) 22
Features   (max 20) 15
Quality   (max 25) 19
Price   (max 15) 10
Overall   (max 100) 75%


Caterpillar 308 / 309 / 301.7 CR Mini Hydraulic Excavators Generation Video  [Youku video]
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Caterpillar branded tin.
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Blade up.
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Small graphics on the track frame.
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Maximum depth of dig is compromised.
Grading bucket.
Flail attached.
Pivoting boom.

The Caterpillar 309 CR Mini Hydraulic Excavator weighs around 19.3 tonnes.

It is used for smaller earthmoving and other applications.


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 operator can be inserted in the cab, and a tool is provided to help with the task.


The undercarriage is metal and the tracks are rubber.  They track frames do not have working rollers, but a nice small detail is the tiny graphics on each frame.

The dozing blade has got wear plate detailing and the hydraulic rams have protection covers on top.

The cab has got a plastic mirror and the grab rail is modelled as a solid part of the cab frame.  Surprisingly there is no wiper visible.  The plastic roof has a window.  Inside the detail is very good with Cat on the seat back.  An operator wearing bright high visibility clothing can be fixed in the cab. 

The body casting has indented panels and the Cat graphics are very sharp and there are some tiny warning signs with the rear lights painted.   Grilles are represented by graphics.  There is a plastic mirror on top, and plastic grab rails on the side. 

The boom and stick connections are made by painted rivets.   There is no hydraulic hose detailing but a couple of sharp graphics add detail.  The quick connector at the end of the stick is plastic.

Four work tools are provided.  A digging bucket and grading bucket are metal parts.  An auger attachment has the auger modelled in plastic, and a logging flail has a silvered part.


The rubber tracks are tight, but can be made to roll with downward pressure on the model.

The blade moves up and down.

The boom, stick and bucket movements are compromised but most normal poses can be achieved.  The boom can also be angled from side to side by a reasonable amount. 

The operator can be installed in the cab for when the model is posed working, or the cab can be empty to represent the machine being parked up or transported.

The four tools give a variety of display options.  They clip on to the connector fairly easily.


It is a robust model with some plastic used.

The paint is good and the graphics are sharp.


It is reasonable value.


The Diecast Masters packaging and presentation is excellent.  The model is a nice representation of the real machine with some compromises in the model engineering and detailing, but the variety of tools gives good flexibility.


The model became available in March 2019.

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The parts out of the box.
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Nice body detailing.
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Rubber tracks.
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Simple detailing with no hydraulic hoses.
Profile view.
Auger attached.
Loaded on transport together with a 308 CR.