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Manitowoc 4100W Crawler Crane - J E McAmis

Maker:  Weiss Brothers
Model No:  030-1205
Scale:  1:50
Review Date:  October 2021


Weiss Brothers Index
Historic Equipment Index


Cranes Etc Model Rating
Packaging   (max 10) 8
Detail   (max 30) 27
Features   (max 20) 17
Quality   (max 25) 22
Price   (max 15) 11
Overall   (max 100) 85%

Footnotes


Manitowoc 4100W Crawler Crane - J E McAmis review.
The box.
Where to buy
Classic 4100W appearance.
McAmis colours are attractive.
 
Ballast boxes between the track.
Underneath.
Excellent track drive chains.
Boom sections are dead straight and have internal bracing.
Opening flap for the battery box.
Lifting a concrete skip on the single line hook.
Convoy with some of the parts.
Transport load with the track frames removed.
Profile view.

The Manitowoc 4100W is a historic crane in the history of the Manitowoc Crane Company and was one of the most popular cranes it ever built.  It was launched in 1968 and was in production until the mid 1990s with nearly a thousand having been made.

This model is the crawler crane version which had a lifting capacity of 200 tons. It is in the colours of the US contractor J E McAmis.

Packaging

The model comes in a Manitowoc branded box.  Within the box is a single expanded polystyrene tray with lid which contains the pieces of the model, all well wrapped in polythene. 

The review model was undamaged and there were no missing parts.

The assembly manual is simple and straightforward to follow. They do not fully explain every feature of the model, but will be good enough for most collectors.  A Manitowoc branded screwdriver is supplied to assist the assembly.  A numbered certificate is also included.

The boom luffing ropes are reeved in the factory, and ttape needs to be carefully removed.  On the review model some work was needed to put the ropes back onto pulleys.

Detail

The metal linked tracks are excellent and the track frames are very detailed.  Particularly fine points are the spoked drive sprockets and the realistic working chain drives which move as the tracks are used.  The undercarriage frame has attachable ballast boxes and these include patterned steps and tiny warning notices.  The ballast boxes are not particularly heavy, although the undersides can be unscrewed allowing additional weight to be added.

The crane body impresses because of the fine paintwork and graphics.  The cab is fully detailed inside with seat and control levers, and the details continue outside with patterned walkways, windscreen wiper and grab handles.  The cab door has detailed graphics applied. 

Behind the cab is a metal ladder leading to the roof and behind that is a fine slatted grille.  At the rear, the counterweight blocks are smoothly finished.  Opposite the driverís cab side is another sliding door and this reveals the engine compartment complete with various pipe work.  At the front, the structure for supporting the boom pivot is very nicely reproduced.

The roof of the crane body has an exhaust with chrome muffler, and the gantry structure is very well detailed with step irons leading to a ladder which provides access to the top of the gantry.  All pulleys are metal and the model engineering in this area is high quality. 

The luffing rope has been knotted within the equaliser and this is due to the way the string has been reeved from the twin drums of the luffing winch as two separate pieces.  In practice this does not detract from the look of the model too much. 

The boom sections are very good and represent the Boom No 22 of the original.  The boom butt section has two metal cylinders which restrain the jib from over-luffing, and the casting overall of all boom sections is very good with the main chord members cast to replicate the inverted angled sections of the original.  Main boom sections all have internal bracing.  The screwed connections between sections are good and positive. 

The boom top section is excellent.  It was designed on the real crane in such a way that the boom can be at a very steep angle without the lines to the hook being fouled and so some complicated fabrication was involved to produce the required profile.  The model replicates this perfectly.  Metal pulleys and Manitowoc sign boards complete the piece.

Pendants are string and have metal connections and a good job has been done to keep the lengths of pendants the same. 

Two hooks are supplied.  A headache ball has a realistic connector and the hook itself rotates.  The main block has four free rolling sheaves and the hook has a safety catch.

Features

The tracks roll well, and the chain drives rotate also.

The track frames are screwed and detachable from the main undercarriage and can be refixed at a slightly narrower transport configuration.  They can also be completely removed.  With a little effort the crane can be posed in a realistic travelling configuration on a suitable low loader.

The counterweight is supplied as a number of pieces which push-fit together and fit to the crane body. 

In addition to the two sliding doors and opening chain case at the front, there is an opening hatch on the roof which allows a view into the engine compartment. There is also a small opening flap on the battery compartment.

The crane functions all work well.  Rotation of the crane is smooth.  The luffing and hoist drums are operated using a key which inserts through holes in the bodywork and these work fine, not slipping under load.

There was not enough rope on the luffing drums of the review model to enable the boom to be fully lowered for disassembly on the ground.  It is possible to access the luffing winches by unscrewing the screws underneath the body, but it is not a trivial exercise.

Quality

This is a high quality model with a very high metal content. 

The paintwork and graphics are high quality.

Price

This model is good value for the quality offered.

Overall

It is great to see the Manitowoc 4100W released as a model again, and this one is attractive in the limited edition colours of McAmis.  Both detailing and functionality are at a high level.

Footnotes

The original model first appeared at the end of 2007, and was produced by TWH Collectibles in Manitowoc red.  Weiss Brothers re-released the model in 2021 in a variety of colours.  The McAmis version was released in a run of 200 models.
 
Inside the box.
Tracks set at maximum width.
Gantry is metal and detailed.
Excellent profile.
Sliding cab door.
 
Detailed boom top section.
Opening side door.
Opening door at the front.
Lifting a beam on the main block
Opening flap.
Transport load with the tracks set to a narrower width.
Erecting the boom.