China mini 4 ton Official Manufacturer Telescoping Cage Small Tower Crane with Parts QTZ40

Product description
1.suitable for all kinds of construction project and can work under all kinds of work condition.
2.It has high working speed, good speed-adjusting performance, steady operation and high
efficiency.
3.The crane has complete set of safety devices, which can guarantee the safe and high efficient
operation of the equipment.
4.Three-speed motor and mono-speed ratio decelerator are applied in the lifting struction, which
enables heavy load low speed and light load high speed.
5.Planet gear decelerator is applied in the circumgyrating structure, together with moment-limiting
hydraulic coupler, which can realize high load capacity, steady starting and reliable operation.
Parameter
Pictures