JLG 1850SJ
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: Kennwerte der Modelle JLG Boom Lift, — JLG: Straight vs. Articulating Boom Lift, — JLG: 800S Telescopic Boom Lift Produktseite
Technical data
Dimensions and weights
| Length | 19,230 mmcorrect |
|---|---|
| Width | 2,500 mmcorrect |
| Unladen weight | 27,351.6 kgcorrect |
Drivetrain and chassis
| Tyre size | 445/500710 Foam-Filledcorrect |
|---|
Working data
| Hydraulic oil capacity | 284.3 lcorrect |
|---|---|
| Fuel tank capacity | 199.9 lcorrect |
| Gradeability | 40 %correct |
Other data
| System voltage | 12 Vcorrect |
|---|
Frequently asked questions
How much does the JLG 1850SJ weigh?
The unladen weight is 27,352 kg.
What are the dimensions of the JLG 1850SJ?
19,230 mm × 2,500 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.
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This page carries 8 individual figures for this model. They come from 1 recorded source; 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
Sources: [1]
Telescopic platform in 3D section
Turn the model, look inside and click an assembly — each one is explained.