A knuckle boom crane looks like a standard crane. The main distinction is that the boom is capable of folding back similar to a finger since the boom articulates at the "knuckle" near the center. This enables the machinery to be able to transform into a compact size for maneuvering and storage.
Usually, the arm on a knuckle boom crane is somewhat a bit 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 at the back of the cab. This leaves the entire bed of the truck empty.
Interestingly enough, smaller types of knuckle boom cranes can be used without a licensed crane operator, as 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 normally different. Some could control from the ground, radio remote control, seated and stand up control. The radio remote systems could operate the crane as well as starting it. In addition, lots of models come equipped with a computer readout system which provides system readouts at once reporting if the crane is overloaded or not.
Snorkel Personnel Lifts are designed for contractors and facilities maintenance professionals. These lifts are inexpensive, lightweight, portable work platforms made for interior use. The patented Girder Lock mast design by Snorkel delivers 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 designed and built so as to be easy for one person to operate. These equipment could be transported easily. They can easily be pushed smoothly into position and pass through a regular sized doorway. These lifts are capable of being erected in minutes and can provide working heights of up to 46 feet, they are an efficient alternative to scaffold towers.