JLG 1850SJ – specifications
Series: JLG Boom Lift
Build year not documented · Data origin: Directory data · sources
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The JLG 1850SJ is a telescopic boom lift equipped with an additional jib, belonging to the JLG Boom Lift series. Designed as an aerial work platform, it is intended for accessing elevated work positions in various operational environments. The model designation follows JLG nomenclature, where the digits roughly indicate the working height in feet, and the letter code "SJ" denotes the combination of a telescopic boom and a jib. This configuration positions the machine as a reach specialist, which, unlike articulating booms, is primarily designed for distance and operation in open terrain.
With a length of 19,230 mm and a width of 2,500 mm, the vehicle has substantial dimensions that must be considered during transport planning and maneuverability on the construction site. The empty weight of 27,351.6 kg requires a load-bearing surface and influences the choice of transport vehicle. The gradeability of 40% allows it to handle inclines, while the foam-filled tires in size 445/500710 support puncture-proof operation on uneven ground. The hydraulic oil volume of 284.3 l and the tank capacity of 199.9 l define the operational reserves for longer working periods without immediate refueling intervals.
Within the JLG Boom Lift series, the 1850SJ ranks first in terms of empty weight among 64 models with specified data. It is therefore the heaviest model in this comparison group. The next lighter model is the 150HAX with an empty weight of 26,354 kg. The total weight range of the series extends from 1,542.2 kg to the 27,351.6 kg of the 1850SJ. This positioning at the upper end of the weight scale correlates with the large boom reach and the resulting need for massive stability and a robust undercarriage.
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
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
1250AJP
150HAX
400S
450A 2WD
450A 4WD
450AJ 2WD
450AJ 4WD
460SJ
600A 2WD
600A 4WD
600A Narrow
600AJ 2WD
Sources: RitchieSpecs equipment specifications (retrieved August 2026) · Data sources and cross-checks
Telescopic platform in 3D section
Turn the model, look inside and click an assembly — each one is explained.
