A knuckle boom crane looks similar to a standard crane. The main difference is that the boom could fold back like a finger as the boom articulates at the "knuckle" near the center. This allows the machinery to be able to transform into a compact size for storage and maneuvering.
Usually, the arm on a knuckle boom crane is somewhat a little lighter than boom truck cranes. The crane arm is designed to enable more payloads to be carried on the back of the mounted vehicle. Most knuckle boom cranes are mounted behind the cab. This leaves the whole bed of the truck empty.
Smaller kinds of knuckle boom cranes could be used without a licensed crane operator, if the load capacity of the machinery is less than 15,000 lbs. or if the boom's maximum length is less than 25 feet long.
There are different kinds of control systems for the cranes. For example, there is control from the ground, radio remote control, stand up and seated control. The radio remote systems are capable of running the crane and starting it. Moreover, numerous models come outfitted with a computer readout system that provides system readouts immediately reporting if the crane is overloaded or not.
Snorkel Personnel Lifts are designed for contractors and facilities maintenance professionals. These lifts are portable, affordable, lightweight work platforms made for interior use. The patented Girder Lock mast design by Snorkel provides superb flexibility and excellent reach. This system, used in the UL Series, provides excellent lift capacity.
The Snorkel PAM Series and UL Series Personnel lifts have been built and designed so as to be easy for one person to operate. These machinery could be transported easily. They could easily be pushed smoothly into position and pass through a regular sized doorway. These lifts could be erected in minutes and being able to provide working heights of up to 46 feet, they are an effective option to scaffold towers.