JLG M450AJ
Series: JLG Boom Lift
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JLG Boom Lift 400S to 740AJ (telescopic and articulating aerial work platforms) – S, SJ and AJ as boom type, a leading E for electric drive: engine output 5 to 65 kW, operating weight 3.5 to 26.4 t
On JLG models like the 400S, 460SJ or 740AJ, the number roughly tracks platform height in feet, while the letter code describes the boom type: "S" marks a straight telescopic boom, "SJ" a telescopic boom with an added basket jib, and "AJ" an articulating boom with a jib. JLG itself describes telescopic booms as reach specialists for distance and open ground, while articulating booms trade some reach for a more compact footprint around obstacles. As with other manufacturers, the quoted working height sits above bare platform height, since it factors in the reach of a standing operator on the platform; actual platform height is correspondingly lower than the model number suggests.
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Models with a leading "E", such as the E26MJ, E33MJ or E600J, mark electric-drive lifts — as opposed to diesel- or gas-powered models like the 400S or 460SJ.
Platform capacity holds steady at 230 kg across the recorded SpecCodex data, matching comparable lifts from other manufacturers. Several models also share a recorded displacement of 2,900 cm³, pointing to one common engine fitted across multiple boom sizes.
When buying used, check for play in the telescoping boom's slide pads, inspect hydraulic hoses running through the boom, test the emergency-lowering system, and — on electric models — check battery condition. Hours on the clock and the service log deserve a look too.
In short: the number is a rough platform height, S/SJ/AJ describes the boom type, and a leading E marks electric drive.
Sources: SpecCodex register, model data: JLG Boom Lift, — JLG: Straight vs. Articulating Boom Lift, — JLG: 800S Telescopic Boom Lift Produktseite
Technical data
Engine
| Engine model | Kubotacorrect |
|---|---|
| Fuel | dieselcorrect |
| Drive type | hybridcorrect |
| Power | 6.8 hp (5 kW)correct |
Dimensions and weights
| Length | 6,460 mmcorrect |
|---|---|
| Width | 1,798.3 mmcorrect |
| Wheelbase | 2,042.2 mmcorrect |
| Ground clearance | 228.6 mmcorrect |
| Unladen weight | 6,667.8 kgcorrect |
Drivetrain and chassis
| Tyre size | 240/55-17.5correct |
|---|---|
| Turning radius | 3,170 mmcorrect |
Working data
| Working height | 15,800 mmcorrect |
|---|---|
| Fuel tank capacity | 15.1 lcorrect |
Where this model stands
Power-to-weight ratio: 0.7 kW/t (5 kW / 6.7 t)
Stronger than 4% of the aerial work platforms in the register — out of 205 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the JLG M450AJ have?
The JLG M450AJ delivers 6.8 hp.
How much does the JLG M450AJ weigh?
The unladen weight is 6,668 kg.
What are the dimensions of the JLG M450AJ?
6,460 mm × 1,798 mm.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 14 individual figures for this model. They come from 2 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Telescopic platform in 3D section
Turn the model, look inside and click an assembly — each one is explained.