Leg And Chassis Technology of The BOB-LIFT Aerial Work Platform

Let's conduct a detailed analysis of the chassis and outrigger technology of the BOB-LIFT 27-meter aerial work platform, and see how it can provide the operator with a sense of security like walking on a flat surface at a height of several dozen meters.

The stability of an aerial work platform depends on two key factors: the contact area with the ground and the control of the center of gravity.

The ground contact area determines the "base point" of the vehicle. The wider the outriggers are extended, the larger the supporting area becomes, and the less likely the vehicle is to tip over. Just like when a person stands, spreading the feet apart is more stable than bringing them together; the principle is the same.

Center of gravity control determines the "balancing ability" of the vehicle. When the boom extends to a certain height and angle, the center of gravity of the entire vehicle will change. If the chassis design is unreasonable, the counterweight is insufficient, or the legs' support is unstable, it may cause the vehicle to tilt or even tip over.

Therefore, a qualified aerial work platform must invest sufficient effort in the leg system and chassis structure. The BOB-LIFT 27-meter aerial work platform has achieved industry-leading stability performance by focusing on these two aspects.

The BOB-LIFT 27-meter high-altitude work vehicle adopts an H-shaped outrigger design, which is recognized as one of the most stable solutions in the field of high-altitude work vehicles at present.

Compared with the traditional X-shaped or leg-swinging type outriggers, the H-shaped outriggers have a larger support area when fully extended, with wider longitudinal and lateral support distances. They can effectively cover the overturning moments generated by the boom during operations in all directions.

Specifically, the H-shaped outriggers of BOB-LIFT have the following features:

Long-span design: The lateral span between the front and rear outriggers has reached the industry-leading level, ensuring that the boom has a stable support foundation within a 360-degree rotation range.

Independent leveling function: Each leg can be independently adjusted in height. Even on uneven ground (such as slopes or bumpy roads), the automatic leveling system can ensure that the entire vehicle remains level.

Large-diameter support plate: The end of the leg is equipped with a large-area support plate, which effectively disperses the grounding pressure and prevents sinking on soft ground (such as mud or sand).

One-click extension: The hydraulic legs are controlled centrally. The operator can complete the extension and leveling of the legs from the cab without having to get out of the vehicle and operate manually. It is both fast and safe.

During actual testing, the BOB-LIFT 27-meter aerial work platform remained extremely stable even when fully loaded and with the boom extended to its maximum length. Whether it was the extension or retraction of the boom, the rotation of the slewing platform, the operator hardly felt any additional vibrations.

The chassis of the BOB-LIFT 27-meter high-altitude work vehicle incorporates multiple enhanced designs:

Strengthened Frame

The longitudinal beams of the frame are made of high-strength steel, and the key stressed areas are locally thickened. Compared to the ordinary chassis, the frame of BOB-LIFT has an anti-twisting stiffness increase of more than 30%. This means that even if the boom arm generates a large lateral torque under extreme conditions, the chassis will not undergo significant twisting deformation.

Overall welding process

The frame structure is formed through a single-piece welding process. The weld seams undergo strict non-destructive testing to ensure that every connection is firmly and reliably secured. This process offers better overall integrity and durability compared to a segmented assembly chassis.

Optimal weight distribution design

The weight distribution of the aerial work platform directly affects the stability of the boom after extension. BOB-LIFT precisely calculates the center of gravity and sets reasonable weight distribution blocks at the rear of the chassis. This ensures that the center of gravity of the entire vehicle remains within the support range of the outriggers at any boom position.

Load-bearing capacity

The chassis of the BOB-LIFT 27-meter aerial work platform has undergone rigorous load testing. It is capable of withstanding the overturning moment when the boom is extended to its maximum extent, while also leaving sufficient safety margin.

BOB-LIFT, a 27-meter high-altitude work vehicle, with its solid H-shaped outriggers, high-strength chassis and intelligent safety system, provides reliable support for every high-altitude operation. Whether you are repairing the curtain wall on the exterior wall of a nine-story building or inspecting the bearings under a bridge across the river, BOB-LIFT can ensure your safe operation and smooth operation.

Because BOB-LIFT fully understands: Stability is the greatest respect for the operators.