Set Details
- Set Number
- 7648
- Name
- MT-21 Mobile Mining Unit
- Theme
- Space
- Year
- 2008
- Pieces
- 130
- Complexity
- Quick
- Build Time
- 20-45 minutes
- Ages
- 6+
- Type
- Play-focused
About LEGO MT-21 Mobile Mining Unit
LEGO MT-21 Mobile Mining Unit (set #7648) is a mid-sized build with 130 pieces from the Space theme, released in 2008. The Space line features spacecraft, moon bases, and interstellar exploration. This is a quick-level build suitable for ages 6+, with an estimated build time of 20-45 minutes.
Set Highlights
- 130 pieces at quick complexity — a 20-45 minutes build.
- Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
- Play-focused build with interactive elements designed for 6+ builders.
Who Is This Set For?
Gift for Ages 6+
The quick difficulty makes this accessible without being trivial — a well-matched gift for LEGO fans in the 6+ age range.
Weekend Build Project
130 pieces with an estimated 20-45 minutes fits comfortably into a focused afternoon or weekend session.
Expanding a Space Collection
A solid addition for collectors building out their Space shelf. Introduces parts and builds that complement other sets from the same line.
Build Tips
Check the piece count on the bag against the parts list before starting — knowing what you have prevents mid-build surprises.
Even in small sets, connection order matters. Follow the steps rather than building sections independently.
For active play sets, key connection points (hinges, turntables, clip joints) can loosen over time — a small dab of LEGO's own tube clutch lubricant on the stud resolves most looseness without damage.
Finding Instructions
Building instructions for LEGO MT-21 Mobile Mining Unit (#7648) are available as a free PDF on LEGO.com. You can also upload a photo of this set to LegoFinder to identify it and access the instructions directly.
MT-21 Mobile Mining Unit FAQ
Related Reading
More Space Sets
See all Space →
Also Released in 2008
All 2008 sets →Similar Build Difficulty
Sets at roughly the same piece count and complexity tier — different theme and year, but a similar build experience.
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