3D arm on aerial work platforms: Technology, advantages and model codes at a glance

What You Need to Know

The3D arm- alsopendulum basket armorHybrid jibCalled – is a movable additional function on modern aerial work platforms. It allows movements inthree axes (vertical, horizontal, rotation)This enables precise work in hard-to-reach places, such as behind pipes, beams, or machines. This saves up to...40% timeIt reduces handling processes and increases safety. It is particularly useful in the following situations:complex assembly, maintenance and overhead worke.g. in halls, near sprinkler systems or under bridges.

Technically, the 3D arm requires slightly more maintenance and energy (approximately 20–30% higher consumption with electric drive). Payload capacities are usually between200–450 kg, and repairs are expensive (up to €4,000). Manufacturers such asJLG, Genie, Haulotte, Sinoboom, ManitouorMagnioffer various models with abbreviations such asAJP, RJ, RTJ or 3Drule of thumb:US models use foot, EuropeanMeter measurementsThose who regularly work in cramped or confusing environments clearly benefit from a3D work platform

The so-called 3D arm – also known as a 3D basket arm , pendulum basket arm , or hybrid jib – is a state-of-the-art feature for aerial work platforms. Its three-axis mobility allows for particularly precise work in hard-to-reach areas. This guide explains what distinguishes the 3D arm, which manufacturers offer it, what their model codes mean, and when a platform with 3D functionality is truly worthwhile. Ideal for anyone looking to rent 3D basket arms or purchase 3D aerial work platforms .

What is a 3D arm – and how does it work?

A 3D arm is an additional, movable basket arm located between the main boom and the work platform. Unlike simple basket arms, it moves:

• vertically by up to ±70°
• horizontally swiveling to the left and right (depending on the model ±70° to ±140°)
• rotating around its own axis

This allows you to reach positions that would otherwise only be accessible by laboriously repositioning the stage. Control is via sensitive proportional joysticks . Depending on the model, an additional rotating work platform with up to 180° rotation is included – for maximum maneuverability.

A 3D arm in use: working "around the corner" without moving the stage.

Technical notes: Maintenance, repair and safety

• Load capacity : depending on the model, 200–450 kg (electric models often slightly lower)
• Lubrication: every 200 operating hours or as specified by the manufacturer
• Hydraulic seals: check regularly and replace if necessary (cost approx. €500–1,000)
• Repair costs: Replacing a damaged 3D basket arm costs approximately €2,500–4,000 (depending on the model)
• Wind sensitivity: Operation is not permitted in winds above force 6 (over 45 km/h). Observe manufacturer's limits.
• Transport weight: higher due to the complex mechanics – important for logistics
• Storage: 3D arms should be stored protected from the weather.

All equipment must be used in accordance with DGUV Regulation 1 , DGUV Rule 100-500 and DGUV Principle 308-008 . The latter mandates training for equipment with special functions such as pendulum arms or rotating baskets.

Overview of manufacturer abbreviations and model names

Additional abbreviations in model names – what they mean

How to read model codes correctly

Example: JLG 1350 AJP

1350 = Working height in feet (~41 m). AJP = Articulated platform with basket arm.

Example: Genie Z-45/25 JRT

45 = Working height in feet, 25 = Reach in feet. JRT = Jib for rough terrain use.

Example: Sinoboom AB16EJ

AB = Articulated Boom, 16 = Working height in meters, E = electric, J = Jib.

Example: Manitou 150 AETJ-C 3D

150 = 15 m working height, AETJ = articulated electric telescopic jib, C = compact, 3D = pendulum basket arm with 3D function.

Typical applications for stages with 3D arm

• Maintenance in breweries and industrial plants
• Fire protection installations
• Installations under bridges
• Facade work with obstacles
• Electrical and pipeline construction

For example, when inspecting sprinkler systems in production halls, technicians can use a 3D basket arm to navigate behind machines and pipes without having to reposition the platform. The 3D function saves up to 40% of time and significantly increases workplace safety.

Popular 3D Arm Aerial Work Platforms: Models & Specs

Conclusion: For which applications is the 3D arm particularly worthwhile?

If you work in complex or confined spaces, a platform with a 3D arm is not only useful – but often essential. It reduces setup times, increases safety, and improves access to even the most difficult areas. The 3D arm truly shines in interior construction, maintenance of technical systems, and overhead work (e.g., under bridges).

At BIBERGER you'll find a wide selection of 3D-capable platforms – including expert advice, certified training, and fast availability. Rent the perfect 3D work platform now or get a free consultation .

About the author

Martin Biberger

Managing Director

Martin is the founder and managing director of BIBERGER Arbeitsbühnen & Forklifts.

He is responsible for thetechnical areaTogether with his team, he is responsible for thetechnical purchasingthe machines thatFurther development of the machine inventoryand the smooth operation of over 1,500 BIBERGER rental devices.

From many years of experience he knows theStrengths and weaknesses of all device classes, the possibleAreas of applicationand thetechnical possibilities– always with a view to theDevelopment of the entire industryand future innovations.