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Genie Z-45/25J RT vs JCB STH-2S5 Swivel

The Genie Z-45/25J RT is the bigger machine by 4,125kg.

Last reviewed 13 September 2026

Genie Z-45/25J RT
Genie Z-45/25J RT - image: morrisleslie.com
JCB STH-2S5 Swivel
JCB STH-2S5 Swivel - image: McGovern Plant Hire

Key differences

Specifications side by side

Genie Z-45/25J RTJCB STH-2S5 Swivel
Operating weight6,515kg2,390kg
Working height15.86m (51ft 6in) maximum-
Platform height13.86m (45ft 6in) maximum-
Platform capacity227kg unrestricted-
Skip capacity-1,615 litres (heaped)
Engine power-18.9kW

Sources: Genie Z-45/25J RT, JCB STH-2S5 Swivel. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the Z-45/25J RT if...

  • you want one that is the bigger machine by 4,125kg

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 Z-45/25J RT specifications →

Buy or hire the STH-2S5 Swivel if...

A compact swivel dumper for smaller groundworks and landscaping contractors who need to tip to the side without repositioning, popular on domestic extension and garden sites where access is tight.

Listed by

Full STH-2S5 Swivel specifications →

Common questions

What is the difference between the Genie Z-45/25J RT and the JCB STH-2S5 Swivel?

The Genie Z-45/25J RT is the bigger machine by 4,125kg. The Genie Z-45/25J RT is a rough terrain articulating boom lift; the JCB STH-2S5 Swivel is a 3 tonne swivel-skip site dumper.

GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.