Knuckle-Boom Truck-Mounted Crane

If you're in on-site construction, urban logistics, or narrow-space rescue, you've probably struggled with straight-boom truck cranes that can't reach around obstacles. I've had clients tell me their old straight-boom models got stuck in tight city alleys or couldn't lift loads over walls, wasting hours rearranging the work area. That's why I recommend our Knuckle-Boom Truck-Mounted Crane-its foldable knuckle boom bends at joints, so it can navigate tight spaces and reach hard-to-access areas, all while being just as mobile as a straight-boom truck crane.

Let's get to the specs, no fancy jargon. It's mounted on a 4x4 truck chassis, easy to maneuver on narrow city roads and uneven construction sites. The maximum lifting capacity is 15 tons, ideal for lifting construction materials, small machinery, or delivery cargo. The knuckle boom length ranges from 10 to 25 meters when fully extended, and it folds down to just 3.2 meters-perfect for driving on highways or parking in tight spots. The maximum lifting height is 23 meters, and the lifting speed adjusts between 0.3 and 3 meters per minute, with smooth, precise control.

From my on-site experience, its biggest advantage is the foldable knuckle design. I watched a client use it in a narrow urban construction site, where buildings were only 5 meters apart. The boom bent at two joints, reaching over a 3-meter wall to lift concrete blocks into the construction area-something a straight-boom crane could never do. Even when folded, it's compact enough to drive through city alleys without hitting curbs or buildings.

Another plus is its flexibility and ease of use. The boom has 2-3 folding joints, so you can adjust the angle quickly to reach around obstacles-like trees, walls, or other equipment. The control system is intuitive, with a handheld remote that lets you operate the boom from the ground, so you can see exactly where you're placing the load. One client used it for delivering heavy furniture to high-rise apartments, folding the boom to fit through narrow courtyard gates.

A small heads-up: it's not as stable as straight-boom cranes when fully extended. If you lift heavy loads at maximum boom length, you'll notice a little sway-nothing dangerous, but you have to move slowly. It also has more moving parts than straight-boom models, so you need to check the joints for wear every month to keep it running smoothly.

It's versatile for tight-space tasks too. I've sold it to urban construction teams, city logistics companies, and rescue services working in narrow areas. The truck's chassis is compact, with good turning radius, so it fits in small parking lots and narrow streets. It's powered by the truck's 140HP diesel engine, so no separate power source is needed, and setup takes just 15 minutes.

This Knuckle-Boom Truck-Mounted Crane is perfect for teams working in tight urban spaces, narrow construction sites, or any job where obstacles block straight-boom access. It's more flexible than straight-boom models, just as mobile, and handles most on-the-go lifting tasks. We offer on-site operator training, a 10-month warranty, and spare parts ship in 3-5 days for most regions. It's not the most stable at full extension, but its flexibility makes it irreplaceable for tight-space jobs-and that's what keeps your work on track.

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