Advantages and Disadvantages of folding arm crane trcuks

The jib crane can be divided into a folding arm type and a straight arm type. What are the advantages and disadvantages of the folding arm type hoisting crane?

Firstly. Advantages

1.More efficient

The folding arm type truck-mounted crane is similar to the palm joint of the human body, and can perfectly realize various movements, which is more flexible and efficient.

2. Better use of low-rise buildings

The folding arm type truck hoist can be folded twice, which is more suitable for workshops, warehouses and other relatively small or low working places.

3. Can install a variety of accessories

The folding arm type truck crane is similar to the robot arm, and various "palms" can be installed on the arm end, such as high-altitude hanging baskets, grabs, jigs, pallet forks, broken hammers, augers and the like.

4. Take up less container space

The folding arm type truck crane is a folding arm structure, so that it can be folded and placed, so that the vehicle can obtain a larger loading space during use and increase the utilization rate of the container.

5. Easy maintenance

The boom telescopic hydraulic cylinder device of the folding arm type truck crane is external to the boom, and is easy to repair when there is a problem.

 
Secondly, Disadvantage

1. Folding arm type truck crane hydraulic system pressure is higher than straight arm type truck crane pressure

In order to reduce the pressure of the luffing cylinder, a link mechanism is often used. The oil pump used in the hydraulic system of the straight-arm type truck-mounted crane is a gear pump, and the oil pump used in the folding-arm type truck-mounted crane must be a plunger pump with a high pressure.

2. Angle of rotation

The turning motion of the folding arm type truck crane is rotated by the rack on the rotary hydraulic cylinder to drive the gear bar at the lower end of the column, and the rotation angle is determined by the formation of the hydraulic cylinder. Therefore, the folding arm type truck crane cannot continuously rotate, and the arm is folded under normal conditions. The maximum angle of the slewing of the truck is 360 degrees.