A knuckle boom crane looks similar to a standard crane. The main difference is that the boom could fold back similar to a finger since the boom articulates at the "knuckle" near the center. This allows the machine to be able to transform into a compact size for storage and maneuvering.
Usually, the arm on a knuckle boom crane is quite a little lighter compared to boom truck cranes. The crane arm is designed to allow more payloads to be lifted on the back of the mounted vehicle. Most knuckle boom cranes are mounted behind the cab. This leaves the entire bed of the truck empty.
Interestingly enough, smaller models of knuckle boom cranes can be utilized without a certified crane operator, so long as the maximum capacity is less than 15,000 lbs. or if the maximum boom length is less than 25 feet long.
Control systems for these cranes are usually different. Some could control from the ground, radio remote control, stand up and seated control. The radio remote systems are capable of running the crane as well as starting it. Additionally, numerous models come equipped with a computer readout system which immediately provides system readouts reporting if the crane is overloaded or not.
Personnel Lifts
Personnel lifts designed by Snorkel have been made to help maintenance professionals and contractors perform jobs at elevated heights. These lifts are lightweight, portable, inexpensive work platforms made to be used indoor. The patented Girder Lock mast design by Snorkel delivers superb flexibility and excellent reach. This system, utilized in the UL Series, provides great lift capacity.
The Snorkel UL Series Personnel and PAM Series lifts have been built and designed so as to be easy for one individual to use. These equipment could be transported easily. They can easily be pushed into position smoothly and pass through a standard sized doorway. These lifts are capable of being erected in minutes and being able to provide working heights of up to 46 feet, they are an effective alternative to scaffold towers.