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| Picture box.
|
 |
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| In the display
case. |
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| Big machine. |
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| Underneath. |
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| Detailed cab
interior. |
|
|
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| Dust collection
equipment. |
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| Excellent
engine detail. |
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| Realistic
appearaance. |
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| Detailed drill
bit. |
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| Looks great. |
|
The DR412i is a rotary blast hole drill. It can
achieve a single pass hole depth of 17.65m. The
operating weight is in the range 109-127 tonnes.
Packaging
The model is very robustly packed in outer and inner
shipping cartons complete with corner protectors.
Inside those, foam rubber protects a large picture box.
The packaging protects a Perspex-type display case which
itself is wrapped with clear film.
There were no missing parts or defects on the review
model.
There is some information about the real machine on the
box. An instruction sheet is included which
describes the main functionality.
Detail
The display case is high quality and the base has sharp
red stitching and a metal name badge.
The underside of the carrier has a detailed frame which
reflects the nature of the production method used.
It is CNC milled and is precisely formed. There is
a large Siks Scale Models plate.
The triple grouser tracks are metal and mounted on detailed track
frames. There are precision engineered rollers top
and bottom. The levelling jacks have formed metal
pads but the pistons have visible screw threads.
The deck is excellent with finely crafted metal
handrails all around and tiny graphics add authentic
detail. A particular high point is the quality of
the etched footways and grilles, and this carries
through to the steps on stairs and ladders. Underneath the deck there are rubber
skirts around the drill head.
The cab has discrete windscreen wipers and the internal
detail is very good. The engine is made up of
many different components and it is highly detailed.
The large radiator block has excellent mesh grilles.
The model also features the optional deck crane for bit handling and
it has small graphics applied. Fire suppression
equipment is also modelled.
The mast is not diecast but is laser cut metal and this
allows the complexity to be perfectly represented.
A full mesh platform is also included. Hose guide
frames are also modelled and there is a realistic beacon light at
the top.
The rotary head has the motors with hydraulic hoses
running to them. The drill pipe has a tiny but
detailed drill bit. The chain drive for the rotary
head is also included. At the bottom the breakout
clamp is modelled.
Features
The tracks roll smoothly and are spring loaded to
maintain tension.
The levelling jacks can be lowered by unscrewing.
The hydraulic stairs can be lowered and raised smoothly.
Two step ladders can be raised and lowered.
The deck crane boom can be raised and lowered.
The mast folds horizontally smoothly but there is not
enough friction in the hydraulic rams to pose angled
drilling.
The rotary head can be raised and lowered fully and the
chain drive works well.
The breakout clamp at the bottom of the drill pipe can
be rotated in and out of position.
The model can be removed from its display case.
The instructions say this would be at the owner's risk
due to the delicacy of the model, but in practice
undoing the securing bolts is straightforward.
Quality
This is very high quality model. The metal content
is very high and the various model making techniques
employed produce high fidelity.
The paintwork and graphics are generally excellent.
Price
This is an expensive model driven largely by very low
production numbers. However, it offers an
exceptional model for the price.
Overall
This is another excellent model and is a worthy big
brother to the DR410i replica by Siks Scale Models, and it is made using an
impressive array of modelling techniques. It is
particularly authentic looking and is a superb display
piece in its display case.
Footnotes
The model first appeared in July 2025. It was
produced in very low numbers.
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|
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| Instruction
sheet. |
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| A 'customised'
pose. |
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| In tramming
mode. |
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| Profile view. |
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| Hydraulic
stairs lowered. Sandvik figures are not included.
|
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| Small step
ladder lowered.
|
|
|
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| Breakout clamp
rotates. |
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| Hydraulics at
the rotary head.
|
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| Final handover
inspection. |
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| Drilling deep. |
|
