JLG 400S Telescopic Boom Lift – Optimized Product Page Content

🔹 Product Overview
The JLG 400S is a robust, popular Diesel Telescopic (Straight) Boom Lift designed for fast, efficient vertical and horizontal access on outdoor rough terrain job sites.1 The “400S” denotes the 40-foot class, straight (telescopic) boom.2 This machine is engineered for simplicity and reliability, providing maximum outreach and swift elevation to the work area.3 Featuring robust 4WD performance and a full-time oscillating axle, the 400S is a workhorse ideal for structural steel, building envelope, and general construction tasks where height and outreach are primary requirements.
🔹 Key Specifications & Capabilities
| Detail |
US Imperial |
Metric |
| Max Working Height |
46 ft |
14.36 m |
| Max Platform Height |
40 ft |
12.36 m |
| Max Horizontal Outreach |
33 ft 4 in |
10.16 m |
| Platform Capacity (Dual) |
1,000 / 600 lb |
454 / 272 kg |
| Drive System |
Diesel/Hydraulic (4WD) |
Diesel/Hydraulic (4WD) |
| Gradeability (4WD) |
45 % |
45 % |
| Machine Width |
7 ft 7 in |
2.31 m |
| Machine Model |
400S |
|
🔹 Key Features & Benefits
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✅ Telescopic Boom: Provides maximum horizontal outreach (over 33 ft) and fast time-to-height, maximizing job site efficiency and covering large areas quickly.
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✅ High Dual Capacity: Offers a standard dual envelope platform capacity of 1,000 lb (454 kg) (restricted) and 600 lb (272 kg) (unrestricted), allowing for more workers, tools, and materials.
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✅ Rough Terrain Performance: Equipped with standard 4WD and a full-time oscillating axle, ensuring superior traction and stability for navigating slopes, mud, and uneven job sites.
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✅ High Gradeability: A 45% gradeability rating allows the machine to easily drive up steep inclines on unprepared construction sites.
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✅ Simplicity and Reliability: Straight boom design offers high reliability and straightforward operation and maintenance.
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✅ Continuous Rotation: 360° continuous turntable rotation maximizes the work envelope and efficiency by reducing the need to reposition the machine.
🔹 Applications
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Structural Steel Erection and Exterior Construction
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Building Envelope Installation (Siding, Cladding, Roofing)
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Industrial Plant Maintenance and Repair
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Utility and Electrical Work on Unprepared Sites
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Any outdoor task requiring long horizontal outreach and high capacity.