Tonkin Kobelco 7250S Crawler Crane by Cranes Etc TV


The Kobelco 7250S is the top of the range
Kobelco crawler crane and it has a maximum lifting capacity of 250 tonnes. Inside the
outer shipping carton is a Kobelco branded box, and that contains three layers of expanded
polystyrene trays containing the many parts. In the top tray there is a set of brochures
and we will have a look at those in a moment. In the top layer there are a number of lattice
boom sections, and going down into the second layer there is more of the same. The bottom
layer has the crawler tracks and body. One of the very nice aspects of this model is
the inclusion of three brochures. The first is the general marketing brochure for Kobelco
crawler cranes and it has got some interesting information and photos. The second one we
are looking at is the manual for assembly of the model. It has got a full parts list
and it is helped by also having the bags in the box individually labelled. The instructions
are comprehensive and there are step by step photos. The last brochure in the box is technical
for the 7250S and it includes all of the load charts for the real crane. All of this means
the presentation of the model is very good. To start the assembly we will insert the jacks
into what is called the ‘translifters’ and these are just a simple screw-in attachment.
There are four of them and if you want the crane to stand on its own four feet then you
need to insert some pins to keep the legs in position. Once that is done we can add
the two ballast blocks to the carbody but they are not an easy fit because of a clash
due to paint thicknesses, and once in place you pin them in position. Next up this crane
likes to run around so lets give it some crawler tracks to do that. Each frame gets offered
up and then a couple of pins secure it in position. One nice touch on the model is that
there are travel clamps on the gantry and you remove these by undoing the nuts and bolts
using the special tools provided. All it then needs is a tug to free up any stickiness in
the paintwork. To raise the gantry you need to remove an elastic band, and just imagine
how you would get that off if they used the same thing on the real crane! The gantry is
now being raised and you can see why it does need to fold because if it is being transported
the crane would be too tall otherwise. Now that it is up you secure it using some more
nuts and bolts and we can move on to adding the counterweight tray at the rear. It hangs
in position and is pinned and you need to use pliers unless you have got fingers the
thickness of chopsticks. Actually if you do have fingers like that it must be really easy
to eat Chinese food. Anyway enough of the nonsense, lets move on and load up the counterweight
ad the big blocks just rest in place, which does mean they can be dislodged. Moving to
the front we are attaching the boom foot, but again because of tolerances and paint
thicknesses it takes some work to get it in position and then you insert a big pin to
secure it. So that is the main work done on the crane body to get it ready to be assembled,
and for this part of the review we will just set it up with a main boom. The lattice sections
are all nicely made and they include internal bracing, and they join together reasonably
easily and they are secured with more little nuts and bolts. There are plenty of guy ropes
that have to be made up too, and these are all joined together by more nuts and bolts,
but before we go nut and bolt crazy lets unwrap the luffing gear. This is pre-reeved in the
factory which is a help, but you have to be careful how you unwrap it to make sure you
keep the tension on the pulleys. If you do let the thread jump of the pulleys you are
definitely in for some frustration getting it back on. Here we have raised up the boom
so we can connect the end of the guy ropes to the luffing bridle. The next step is a
bit unusual – we have to attach the thread from the luffing fly jib onto the main winch
drum. There is no natural tying-off point, so the best way to do it is with a piece of
clear tape stuck on the end of the thread. It is much less messy than glue and it is
easily removable if you want to take the thread off, and it is also quite secure once you
have wound the winch drum a few times. If you are not using the luffing fly jib then
the luffing bridle clips onto the boom in a slightly unusual way. So here we are with
the boom up and we have now reeved on the 70 tonne hook, and included with the model
is an I-beam load which you can put on the hook to give it some more tension. To finish
off this part of the assembly we just need to add on some detail and that includes steps
on each of the four corners of the crawler tracks, and there are plenty of walkways and
handrails to add. Most of these are a good fit but some of them you have to fiddle with
to get them to stay in place properly. There is a neat little cover which goes over the
access point to the rear winch and there is another cover which goes over the front two
winches. For the detail we will start with the crawler
tracks and the metal pads are nicely formed, and the track frames are fairly simple without
working rollers. The cab is very detailed and there are some tiny graphics, and another
hot detail…. is this hot detail. All of the pulleys used on the model are metal, and there
is a high standard of detailing on the lattice sections including tiny graphics. Most of
the boom sections also include mesh walkways. On the tower cap most of the connections are
bolted so you can flatten things for transport, and the little white wind gauge adds to the
realism. At the boom top there are more metal pulleys and some tiny holes that are tying-off
points. Three metal hooks are supplied and they are decent metal parts. Lets start by having a look at the crawler
tracks, and they are free-rolling on both of the frames and they are tensioned by sprig-loaded
idlers. One of the features of a model like this though is that if you do not want to
build it up you can use the parts as transport loads, so here the tracks are going on to
a Nooteboom trailer, or as an alternative we can load up some boom sections. One thing
you can do with the model is to pretend to drive it like a real crane, but you can expect
it to wear out your wrist action. So far we have only assembled the model with a modest
main boom, but there are plenty more main boom sections we can add in, and we can also
put it into a tower configuration by adding in the optional luffing fly jib. And here
we have it all pre-assembled ready to add on to the model. Once you have it all built
up then you can display it with the luffing fly jib clipped to the boom, but one thing
you cannot do is lower the angle too much because it will be unstable and there is not
enough thread on the boom drums. Still there is enough thread for the luffing jib and you
can winch that up into position. One thing to note is that the guy ropes are not all
exactly the same length so you might need to swap some spares to maintain equal tension.
Now that we have built the full model lets see how high it goes, and it is about 70 inches
or nearly 180 centimetres. This is another very detailed Kobelco crane
model by Tonkin Replicas. It is well presented and is flexible with many different configurations
being possible, and most of the features work well enough with just a few restrictions,
but certainly a plus point is the very high detail level, and that makes it an outstanding
model.

35 comments on “Tonkin Kobelco 7250S Crawler Crane by Cranes Etc TV”

  1. Jarno De rouw says:

    Nice video

  2. Terminator X says:

    second commet

  3. El!Te Gaming says:

    First viewer!!!!

  4. Anthony Dwyer says:

    5th viewer

  5. Papagoose live says:

    I really like the details

  6. Nikolai 98 says:

    So you're telling me that this model i nearly as tall as me? I'm 185 😀

  7. Papagoose live says:

    Not to crazy about the color tho

  8. cranedude07 says:

    Another nice review!
    The lower structure, tracks, and main boom all seem the same as the 2750g, with the gantry, counterweights and luffing jib system being different, looks really nice though

  9. Charlie Trejo says:

    Incredible video, like always…

  10. Maks3737 Darashka says:

    Хххххххххххххууууууууууууйййййййййййй

  11. Ricky Yang says:

    Interesting open music :p

  12. Alessandro Paci says:

    Can you review the actros van meirvenne produced by tekno?????

  13. Joshua Preda says:

    The graphic design aspect of the brochures is beautiful. Love your videos!

  14. tallman says:

    It is bigger than me

  15. steelman333 says:

    Will this model ever be available to the general public, it was announced two years ago

  16. Cheke Huerta Melo says:

    como le ago para comprar una

  17. Syed Waqas says:

    where 2 buy

  18. 훈찡 says:

    😇😇😇😚👏👏👏👏

  19. Viking Beard says:

    Will Cranes Etc be doing a YouTube or website review of the MLC650 anytime soon?
    I'd love to get your take on it, as I am about to purchase one .
    Thanks
    Gene

  20. 吳柏廷 says:

    please

  21. Sunil Yadav says:

    very good

  22. Venderookie says:

    Looks like manitowoc crane but blue version and the logo is kobelco but no Max ER

  23. Mark vd Straten says:

    Mark

  24. rey anova says:

    How much?.can u deliver in the philippines

  25. Jason Gaming says:

    good job 👍👍👍👍

  26. leon chest says:

    Just like American crane

  27. เอื้องเหนือ th. says:

    No japan kobelco

  28. Agus Trisno says:

    Wah bisa beli di mana ini

  29. Glenn Champion says:

    name of music please

  30. sriram Koushik says:

    HOW MUCH THAT CRANE $ COSTS

  31. sriram Koushik says:

    IT COSTS 500$ OR 300$

  32. Teddy Kestler says:

    Where can I buy one ?

  33. Soo Hong says:

    This is chinese music😅😅😅

  34. Febri Firmanullah says:

    Hightower

  35. Phong Nguyễn văn says:

    What's this

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