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LEGO Technic Bucket Wheel Excavator (42055)

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LEGO Technic Bucket Wheel Excavator (42055) -  LEGO - Toys"R"Us
LEGO Technic Bucket Wheel Excavator (42055) -  LEGO - Toys"R"Us
LEGO Technic Bucket Wheel Excavator (42055) -  LEGO - Toys"R"Us
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LEGO® Technic Bucket Wheel Excavator 2-in-1 Building Set

Junior builders can role-play construction scenarios and discover a gold mine all their own with the LEGO Technic Bucket Wheel Excavator 2-in-1 Building Set. This heavy piece of machinery comes with a LEGO Power Functions motor, which runs an array of motorized functions, including forward and reverse driving, a rotating superstructure and a working boom with revolving bucket wheel. The rugged mine truck can wait under the moving conveyor belts to gather and transport the rare material for advanced processing. When young construction workers have had their fill, they can rebuild the 3,929 pieces in this set to construct the awesome Mobile Aggregate Processing Plant.

Product Highlights

  • LEGO Power Functions motor supplies power to the forward and reverse driving, rotating bucket wheel, moving conveyor belts, rotating superstructure and working bucket wheel boom
  • Includes hand-railed walkways, lights, mined-material elements and a rugged mine truck
  • Two-in-one model rebuilds into the Mobile Aggregate Processing Plant
  • Mined material moves from the bucket wheel to the conveyor belts to the waiting mine truck
  • Rotate the massive superstructure with the joystick
  • Bucket Wheel Excavator measures over 28"L x 11"W x 16"H
  • Mobile Aggregate Processing Plant measures over 34"L x 8"W x 12"H with boom extended
  • Contains 3,929 pieces
  • Requires six AA batteries (not included)
  • Suitable for ages 12 - 16 years

What's Included

  • LEGO Technic Bucket Wheel Excavator
  • LEGO Power Functions motor
  • Mine truck
  • Additional accessories
Mechanical operation
Equipped with a LEGO Power Functions motor, this excavator boasts a wide array of motorized functions, including forward and reverse driving, a rotating bucket wheel, moving conveyor belts and a working bucket wheel boom.
A day at the worksite
This set also comes with hand-railed walkways, lights, mined-material elements and a rugged mine truck to add to junior excavators' realistic role play.
Two-in-one model
Young builders can reconstruct the wheel excavator into a Mobile Aggregate Processing Plant for additional jobsite fun.
Out of the quarry
The mine truck can transport the precious gems and rare finds around the worksite.

Product Description

CHOKING HAZARD - Small parts. Not for children under 3 yrs.

Enter the world of mining on a colossal scale with the massive Bucket Wheel Excavator the largest LEGO® Technic set to date! This highly detailed 2-in-1 model has been designed to provide an immersive and rewarding build and play experience, and comes with array of motorized functions, including forward and reverse driving, moving conveyor belts, working boom with revolving bucket wheel, and a rotating superstructure. You can even rebuild the model to create a Mobile Aggregate Processing Plant.

The LEGO Technic Bucket Wheel Excavator (42055) Features:
  • Features a LEGO® Power Functions motor for an array of motorized functions, including forward and reverse driving, rotating bucket wheel, moving conveyor belts and rotating superstructure

  • Also features hand-railed walkways, lights, mined-material elements and a rugged mine truck

  • Activate the motorized conveyor belts and bucket wheel

  • 2-in-1 model: rebuilds into a Mobile Aggregate Processing Plant

  • Bucket Wheel Excavator measures over 16 inch (41 centimeter) high, 28 inch (72 centimeter) long and 11 inch (29 centimeter) wide

Features

  • Features a LEGO Power Functions motor for an array of motorized functions, including forward and reverse driving, rotating bucket wheel, moving conveyor belts and rotating superstructure
  • Also features hand-railed walkways, lights, mined-material elements and a rugged mine truck
  • Activate the motorized conveyor belts and bucket wheel
  • 2-in-1 model: rebuilds into a Mobile Aggregate Processing Plant
  • Bucket Wheel Excavator measures over 16 inch (41 centimeter) high, 28 inch (72 centimeter) long and 11 inch (29 centimeter) wide

Additional Info

396634

0289D21D

673419248723

6137063

12.9 pounds

22.9 x 18.9 x 6.6

How to Get It


  • This item can be shipped to the entire United States including Alaska, Hawaii, and all U.S. territories including Puerto Rico
  • This item can also be shipped to APO/FPO addresses and to P.O. Boxes in all 50 states
  • Due to shipping restrictions, Ship Charges will be separate from other items in your order
  • This item will ship by itself


  • This item may be shipped via Standard Shipping, Expedited Shipping or Express Shipping
  • Please Note: Some addresses are eligible for Standard Shipping only (APO/FPO, P.O. Boxes, U.S. Territories and Puerto Rico)

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  • This item is sold in our stores
  • Orders placed for Store Pickup will receive online pricing and promotions
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This item may be shipped in the manufacturer's original packaging, which could reveal the contents of the box

Average Customer Rating:

by PowerReviews
LEGO Technic Bucket Wheel Excavator (42055)
 
4.7

(based on 46 reviews)

Ratings Distribution

  • 5 Stars

     

    (35)

  • 4 Stars

     

    (9)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

98%

of respondents would recommend this to a friend.

Pros

  • Creative (5)
  • Fun (3)

Cons

No Cons

Best Uses

  • Imaginative play (4)
  • Motor skills development (4)
    • Reviewer Profile:
    • Grandparent (4), Collector (3)
    • Was this a gift?:
    • No (4), Yes (3)

Most Helpful Positive Review

 

Good set with a few drawbacks.

The goods: 1. Loads of parts!! Just too many parts in the box and the weight almost breaks the yellow LEGO vinyl bag. If you ordered it from Internet, give some praise...Read complete review

The goods: 1. Loads of parts!! Just too many parts in the box and the weight almost breaks the yellow LEGO vinyl bag. If you ordered it from Internet, give some praise to your delivery people. 2. It's not just many parts. This set contains loads of square frame parts and gears which are super useful in any MOC designs. If you want to dive into Technic building, this set is a MUST buy set. 3. Many functions. Rolling conveyor belts and bucket wheel operation are already worthwhile to make a contraption. This set also moves forward and backwards and the superstructure rotates. Although the bucket wheel elevation and lower conveyor part rotation are manual but it's not too hard to motorize it due to its sheer size!! 4. Although you can't mount a Minifigure, this model is actually a one of few Minifigure sized Technic models. The cockpit can contain a Minifigure if you modify the seat with a proper studded one. (This is a definite plus for anyone wants to play with!!) 5. The finished A model is a huge contraption but is actually very sturdy. You can carry this heavy contraption by holding the top part of the arch!! The bucket wheel arm itself is really sturdy as well. You can even wield it around without problem. The drawbacks. 1. Too many parts and gears: causes too much backlash and almost impossible to debug when something isn't working well. I've changed the tandem clutch wheels with 24 teeth gears to ensure smooth bucket wheel operation (see one of my pictures.) But this isn't safe especially if any mineral(or Skittles!!) stuck into some corner to hamper any motorized operation. It's gonna break rest of gears or overheat PF XL motor. 2. The backlash is severe. For example. The lower conveyor belt lock is almost invalid. Even though you engage the lock, the conveyor belt slides like +30 to -30 degrees without any serious impedance. 3. In other words, this set is super hard to make it operate properly. Although putting parts together is not hard at all(since this model doesn't have any pneumatic hoses and threads), fitting all the parts to ensure smooth operation is a great challenge. The hints on instruction manual aren't enough. You are warned!! 4. B model instruction is only available on the Internet. Browsing through hundreds of PDF pages (especially without proper index codes!!) isn't convenient at all. 5. The control panel has many functions. But the operation is kinda limited. You cannot mix any rotation with linear movement. i.e. The bucket wheel cannot rotate when the excavator is moving forward. A MOC project to work on!! Although I've pointed out as many drawbacks as pros, it's not a bad model for the size. Heck, this is the largest PF motorized Technic model (excluding fan designed MOCs) so far. Remark: You better visit Bulk Barn to play with this model properly!! Skittles!! Skittles!! more Skittles!!

VS

Most Helpful Critical Review

 

This set has exceeded Technic's limits

As a seasoned lego builder I have an understanding how to build these Technic sets. This set is really impressive but I doesn't function as it should. The forward/reverse driving is jerky....Read complete review

As a seasoned lego builder I have an understanding how to build these Technic sets. This set is really impressive but I doesn't function as it should. The forward/reverse driving is jerky. The rotary bucket assembly jams where the 1/4 ring gears join because the ring isn't rigid enough to maintain a tight circle. The pinion gears that the bucket assembly rides on don't sit parallel to each other causing uneven load on the ring gear. I sent pictures to lego and they are sending new ring gear parts but I doubt this will fix the problem. During the assembly I made sure that all the gears were turning freely with no resistance as required for this type of set. I verified that everything was assembled correctly 3 times and still couldn't get this to work. In the pictures you can see the gear tooth spacing at the connection points of the ring gear are too wide for smooth operation.

Reviewed by 46 customers

Displaying reviews 1-10

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4.0

This thing is ginormous.

By jfredett

from Gardner, MA, USA

Comments about LEGO Technic Bucket Wheel Excavator (42055):

This thing is huge, it was a heck of a lot of fun to build, and while there are some small things I'd definitely like to tweak, it's a pretty good set overall. I haven't had the trouble with motor skipping, though I can definitely see the potential for same. It's definitely important to have a good mental model of how all the gearing is going to work, reading ahead in the instructions is *super* important if only to gather some understanding of how the whole thing will work. That plus lots of testing of gears ahead of time can avoid a large array of issues. Probably the biggest thing this model has going for it is it's sheer scale. Eight phases of construction, nearly all of the roughly 4,000 pieces used in the A model), a massive gear box situated up at the top of the model where you can really get a good look at it in action. The movement is slow (and thus accurate to an actual Bucket Excavator), but satisfying. It's big and complex, Rube Goldberg-esque in some ways, but it really is a sight to see when it's all put together. That said, there are definitely some decisions I don't care for. First, there are some loose pins left in the model that probably don't need to be there (though it might take a little cleverness to hide them). This is a minor gripe that mostly is a pet peeve of mine, perhaps they represent something on the real machine, but they don't look particularly great on the model. Second, a number of the functions are unpowered, when they very easily could have been. I'd've loved to see the lift/lower actuators given a spot in the gearbox, even if that meant a separate control panel (perhaps lower near the lower conveyor locking panel) and an additional motor (I think I may try to retrofit in such a system at some point in the future). Additionally, the lower conveyor's control system is at best somewhat confusing. Specifically, the 'locked/unlocked/neutral' control doesn't seem to really have any substantive difference drawn between the 'locked' and 'unlocked' state, and even when locked, there is a *lot* of play in that lower conveyor. Practically speaking, I just generally leave it unlocked most of the time. I'm less disappointed by this being unpowered, if it were IR remote controlled, I would more annoyed, but given the functionality is *just* the rotation of the lower conveyor, it's not a big deal. I think the biggest issue with the model is actually that it doesn't have any kind of whole-model rotation (i.e., the tracks are in lockstep, you can go forward, or backward, but cannot counter-rotate to turn). I'm not sure if the real Excavators can do this, so perhaps it's more accurate to have it unable to self-turn, but given how big these things are, they must be able to turn on their own, so it's disappointing to not have that functionality available. I don't think that having independently driven tracks would've been *too* hard, but it definitely would have added more complicated gearing in the base, and probably a few hundred more parts. I view that as a feature, not a bug (I like sets with very high part counts). Overall, I think this is a really fun build, and so far it's definitely got some jaw drops and 'wows' from the people I've shown it to, it's really a pretty big statement sitting up on the shelf next to all the other great Technic models in this construction subtheme. I look forward to the next big set!

 
5.0

Always love Lego Technic.

By Valued

from undisclosed

See all my reviews

Verified Buyer

Comments about LEGO Technic Bucket Wheel Excavator (42055):

Awesome huge Lego technic set.

 
5.0

great build

By saahmad

from Karachi Pakistan

Comments about LEGO Technic Bucket Wheel Excavator (42055):

The spirit of LEGO technic is in its construction. As a Pakistani AFOL I only build large sized sets. The excavator when finished is well worth the 18 hours I spent making it as I did not want to make a single mistake. . It is huge and a very satisfying build. The movements are a replication of the monster excavators that are steady and slow, so I would not call it sluggish but actually it is totally realistic. Full credit should go to the design team. I was pleasantly surprised that the excavator can rotate endlessly if left on a battery. The forward movement is also ok. what do you expect; a construction equipment going at the speed of a Porsche! LEGO should continue giving us sets this engrossing each year.

 
5.0

Love

By Erin

from Bayport, NY

About Me Collector, Parent Of Two Or More Children, Working Parent

Verified Buyer

Pros

  • Colorful
  • Creative
  • Fun
  • Sturdy

Cons

    Best Uses

    • Imaginative Play
    • Older Children

    Comments about LEGO Technic Bucket Wheel Excavator (42055):

    It was fun to build. Great instructions. Love how the bags are numbered

    • Was this a gift?:
    • No
     
    5.0

    Welel

    By Scarfacetuga

    from Peterborough

    Comments about LEGO Technic Bucket Wheel Excavator (42055):

    Well this was almost 12h of fun a bit noisy while working with functions and some bits missing but other then that well worth it

     
    5.0

    one big model :-)

    By red37

    from Undisclosed

    Comments about LEGO Technic Bucket Wheel Excavator (42055):

    wow took me 3 days to build this monster lol. i now have technic thumb syndrome putting all these parts together

    (1 of 1 customers found this review helpful)

     
    5.0

    This thing is HUGE!!

    By Spoonegg

    from Gold Coast

    Comments about LEGO Technic Bucket Wheel Excavator (42055):

    I tossed up between this and the overpriced Porsche (42056). Even after reading some of the reviews about how slow it is, it doesn't work etc. I still choose this bad boy for the sheer size and number of parts and value for money. over 3 nights (11 hours total) this monster was complete. Now I was thinking about the other reviews when it came time to fire this beast up. KAPOW!! It lives, the bucket wheel turns perfectly along with the conveyor belt and it rotates with no issues at all. Yes, it is slow when moving forward or backwards, but so what its HUGE! The finished A model is a beast but is very sturdy. You can carry this thing by holding the top part of the arch. A couple of other things to note: The lower conveyor belt lock slides like +30 to -30 degrees. The control panel has many functions. But the operation is limited. You cannot mix any rotation with linear movement. i.e. The bucket wheel cannot rotate when the excavator is moving forward. Don’t let a few reviews put you off (I didn’t). This monster is a must have for any Technic Fan.

    (1 of 1 customers found this review helpful)

     
    5.0

    Bring on more mega builds!

    By OzToymaker

    from Undisclosed

    Comments about LEGO Technic Bucket Wheel Excavator (42055):

    I loved this build. Especially bag 6, which is a significant number of parts to create the main excavator arm. My only disappointment was getting to the end of the build- most take too little time, an evening at best, but this model kept going and going. I have enjoyed more technical models, such as more complicated gearboxes, but the sheer size of this set more than made up for it. It was worth reading reviews where people have complained about the model not working. I took extra care with all power train components to ensure smooth, non binding operation and the model works perfectly. I'm not sure if the movement completely to scale, I almost expected it to move slower, but still it gives the real feeling of the colossal machine. It is a rare model when I am sorely tempted to get a second for the B model!

    (1 of 1 customers found this review helpful)

     
    5.0

    Massive Build!

    By FourBarrel722

    from Lafayette

    Comments about LEGO Technic Bucket Wheel Excavator (42055):

    This set is both the largest in size and in piece count to any set in my current collection. I read the reviews and was a little deterred by all the comments about the motor being too weak but I decided to purchase anyway and see for myself. I'm glad I did! You have to understand one thing about this build - Don't RUSH! The trick to making everything work when you turn the power on is to make sure that once everything is together, and even during the build, that all parts are free moving and don't display a 'bind'; especially around the shovel area(s) and conveyor belt. If you can do that and put it together properly this set is sure to impress!

    (0 of 1 customers found this review helpful)

     
    5.0

    Excavator

    By MrMemory14

    from Undisclosed

    Comments about LEGO Technic Bucket Wheel Excavator (42055):

    I bought this model as therapy as I have vascular dementia. I found the instructions fairly easy to follow. Shame that the instructions for the alternative build are only on line, as I found them less easy to follow for some reason, and have not started the alternative model yet.

    Displaying reviews 1-10

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