One further instance of boom lifts worth mentioning here is the so-called "knuckle boom" lift. This type of lift is useful in rough terrain, and also in situations where there is a need for the lift to travel in forward and also in reverse direction very smoothly. The lift also finds use in situations where there are two walls or two machines, both in close proximity. The platform has rails constructed on it, which gives added protection to the worker. Because of its versatility, the knuckle boom lift is preferred over scissor lifts in challenging situations.
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