Model against model
Genie Z-45/25J RT vs Niftylift HR15 4x4
Two models people put on the same shortlist. Every figure below is sourced, and where one side has a specification the other does not publish, the row is left out rather than filled with a guess.
Last reviewed 13 September 2026
| Z-45/25J RT | HR15 4x4 | |
|---|---|---|
| Operating weight | 6,515kg | 4,500kg diesel, 4,800kg hybrid, stated as minimum |
| Working height | 15.86m (51ft 6in) maximum | 15.7m (51ft 6in) |
| Platform capacity | 227kg unrestricted | 225kg |
Only specifications published for both models appear here. Full Z-45/25J RT figures and full HR15 4x4 figures.
Choose the Z-45/25J RT if...
A widely hired rough-terrain boom for construction and outdoor maintenance. The articulating up-and-over jib is what separates it from a straight telescopic boom: it reaches over an obstacle rather than only to it, which is often the entire requirement.
Full specifications →Choose the HR15 4x4 if...
A British-built boom lift favoured by hire fleets for its narrow 2m width and tight turning circle, which let it reach working heights that normally require a much larger machine on a more constrained site. The flexible boom design allows working up and over obstacles.
Sold as HR15N, HR15E and HR15 4x4 with different drive and power configurations. The figures above are the 4x4.
Full specifications →Common questions
What is the difference between the Z-45/25J RT and the HR15 4x4?
Genie Z-45/25J RT: A widely hired rough-terrain boom for construction and outdoor maintenance. The articulating up-and-over jib is what separates it from a straight telescopic boom: it reaches over an obstacle rather than only to it, which is often the entire requirement. Niftylift HR15 4x4: A British-built boom lift favoured by hire fleets for its narrow 2m width and tight turning circle, which let it reach working heights that normally require a much larger machine on a more constrained site. The flexible boom design allows working up and over obstacles.
Are these figures reliable?
Every figure on this page was read off a manufacturer or established dealer page and is linked to its source. Anything we could not verify is left out rather than estimated. Specifications change by model year and configuration, so confirm with the supplier before relying on them.
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