Head to head
JLG Industries 450AJ vs Niftylift HR21 4x4
The JLG Industries 450AJ is a a 15.7 m diesel articulating boom lift. The Niftylift HR21 4x4 is a self-propelled 4x4 articulated boom lift with 20.8m working height.
Last reviewed 6 October 2026
Specifications side by side
| JLG Industries 450AJ | Niftylift HR21 4x4 | |
|---|---|---|
| Working height | 15.72 m | 20.8m |
| Working outreach | 7.62 m | 13m |
| Platform height | 13.72 m | - |
| Platform capacity | 250 kg | - |
| Machine weight | 6,418 kg | - |
| Weight | - | 6,680kg |
| Turning radius | - | 3.89m (outside) |
Sources: JLG Industries 450AJ, Niftylift HR21 4x4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the 450AJ if...
The JLG 450AJ is a mid-size diesel articulating boom lift used across UK construction, industrial and outdoor maintenance sites where working height above 15 m and rough-terrain capability are both needed. It is one of the most commonly hired boom lifts of its size class in the UK, stocked alongside comparable Haulotte and Genie models by national access hire companies. Its jib articulation lets operators reach up and over obstacles rather than just straight out, which is valuable on cluttered industrial sites.
Full 450AJ specifications →Buy or hire the HR21 4x4 if...
A larger rough-terrain articulated boom lift for taller external work such as cladding, steelwork, tree and utility access on uneven ground. The maker offers diesel only or hybrid power, and it lifts two people with their tools.
Full HR21 4x4 specifications →Common questions
What is the difference between the JLG Industries 450AJ and the Niftylift HR21 4x4?
The JLG Industries 450AJ is a a 15.7 m diesel articulating boom lift; the Niftylift HR21 4x4 is a self-propelled 4x4 articulated boom lift with 20.8m working height.
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