LEGO Technic - Bucket Wheel Excavator - 42055

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Product Information

Height 48 cm
Width 17 cm
Depth 58.2 cm
Number of Pieces 3927
Range LEGO Technic
Material Plastic
Minimum Age 12 years
Model Number 42055
Product Type Building Blocks
Type Building Blocks
Weight 5.86 kg
Brand LEGO

Why we love this

Experience the huge Bucket Wheel Excavator! Mine on a massive scale with the colossal Bucket Wheel Excavator, including motorised tracks, conveyor belts, bucket wheel and superstructure, plus a rugged mine truck.

Enjoy building and operating this massive 2-in-1 Bucket Wheel Excavator, the largest LEGO Technic set to date! This awesome, meticulously detailed reproduction of a real-life mining excavator comes with a cool dark-blue and yellow colour scheme and an array of authentic features and functions, including hand-railed walkways, huge tracks and a detailed cab. Switch on the included Power Functions motor and you can activate the conveyor belts, rotate the massive superstructure and maneuver the colossal machine into position. Then activate the boom to lower the gigantic, digging bucket wheel and convey the mined material to the waiting mine truck. When you feel like another building challenge, rebuild it into a Mobile Aggregate Processing Plant.

Product Features:



• Features a LEGO Power Functions motor for an array of motorised functions, including forward and reverse driving, rotating bucket wheel, moving conveyor belts and rotating superstructure, plus a working bucket wheel boom.
• Also features hand-railed walkways, lights, mined-material elements and a rugged mine truck.
• Switch on the LEGO Power Functions motor and maneuver the huge tracked structure into position.
• Activate the motorised conveyor belts and bucket wheel.
• Move the joystickto rotate the massive superstructure.
• Raise and lower the huge bucket wheel boom.
• Follow the mined material from the bucket wheel to the moving conveyor belts and all the way to the waiting mine truck!
• This LEGO Technic model is designed to provide an immersive and rewarding building experience.
• This set includes over 3,900 pieces, making it the largest LEGO Technic set to date.
• 2-in-1 model: rebuilds into a Mobile Aggregate Processing Plant.
• This set offers an age-appropria te building experience for ages 11-16.
• Bucket Wheel Excavator measures over 16” (41cm) high, 28” (72cm) long and 11” (29cm) wide.
• Mobile Aggregate Processing Plant with boom retracted measures over 8” (21cm) high, 34” (88cm) long and 8” (21cm) wide, and over 12” (33cm) high with boom extended.
• Mine Truck measures over 3” (10cm) high, 7” (19cm) long and 3” (10cm) wide.

Number of Pieces: 3929

Our customers say

LEGO Technic - Bucket Wheel Excavator - 42055 is rated 4.6 out of 5 by 60.
Rated 5 out of 5 by from Superb set with fabulous instructions! First of all, this is the first time I've had a LEGO set for nearly 40 years. After watching LEGO Masters on TV, I looked online out of curiosity and saw the Technic range. Instantly I knew I had to have a go at building one. I settled on the Air Race Jet and I wasn't disappointed. The set offered a challenge whilst the instructions (which are unbelievably good!) kept me on the right track. The set is bigger than I imagined and remarkably sturdy (even for my clumsy hands), the working undercarriage and VTOL power functions are excellent. This may have been my first Technic set but certainly won't be my last. I am already planning my next big build and consider myself to be a confirmed AFOL!
Date published: 2017-09-12
Rated 3 out of 5 by from Great to look at but don't try to run it I enjoyed building this massive and intricate, complex Technic model but was very disappointed when I turned on motor to test all the moving parts. It really should have multiple motors as to expect all the moving parts to run from one is quite frankly ridiculous. Its also slightly unbalanced and needs a stronger central structure. I expected problems from the start and was careful to make sure all the interlinked gears worked freely as it progressed but to no avail as it required significant work to get it running smoothly on completion. Lots of Technic but from an operational, public display perspective very poor. It would have cost less to use more motors and reduce the complexity of the internal gearing, in contrast loved the Volvo wheel loader with twin remotes and four motors, this would have been amazing if designed that way.
Date published: 2017-08-28
Rated 5 out of 5 by from Wheel bucket Excavator This is such an amazing kit! defiantly not for the faint of heart. three main things you really need to successfully accomplish this kit is time, space and patience! I love a good challenge and it did not fail in that category! I absolutely love the mechanics of it! the engineering that went in to this is so incredible! the thing I love the most about technic sets is the amount of gear work and this excavator does not disappoint when it comes to moving parts and gears! you really feel a since of accomplishment when you finish it and everything runs smooth and works correctly! This is with out a doubt in my mind one of the best technic kits that you could ever own! this kit pushes the limits of size and weight! such a fun and challenging build! I give this kit an A++++++++++++
Date published: 2017-08-26
Rated 4 out of 5 by from Amazing but, I love this set. It is overall good but i think that it should be rc, it would make this five star. I also had some trouble with the drive function. Other then that its good. I don't mind that its slow. Also I think that you should use this outside.
Date published: 2017-08-15
Rated 5 out of 5 by from good build Challenging but worth it. Not an easy build for an oldy
Date published: 2017-08-08
Rated 3 out of 5 by from Functions glitchy The bucket wheel doesn't turn smoothly so that I have to push it along at least once per rotation and is constantly stopping. The turning superstructure function didn't work at all and the bottom gear is jammed for no apparent reason. It was a blast to build though and looks great, just wish it was a bit smoother with movement.
Date published: 2017-08-07
Rated 5 out of 5 by from Great set and fun build. Pick this set up now before Lego realizes they made an exact replica of an F-50 fighter jet and discontinue the model. Very detailed set of a F-50 right down to the spinning propeller blades. A must have set for any plane enthusiast or if you're in the military.
Date published: 2017-08-06
Rated 5 out of 5 by from HUUUUGE! I love the high part count and complexity of the set. I said it took me 10 hours to build but, I built it over the course of a few weeks when I had time. I actually bought two sets so I could build the aggregate separator and have them work together. They don't. :-( The conveyor for the BWE is too low to feed the hopper on the MAS. Oh well, the kids LOVE playing with them at the kitchen table. I also bought a half gallon size plastic bag of extra "rock" pieces and put them in a glass cake pan and let the BWE scoop them up. It's a great set and I love looking at them every day as they are on display on my chest of drawers in the master bedroom. Glad the wife is long-suffering!
Date published: 2017-07-27
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