There are seven-ton cranes, often equipped with four-section arms. When the arms are not extended, they can lift 7 tons. When the arms are fully extended, they can lift about 650 kilograms.

A seven-ton truck-mounted crane needs to consider the three major elements of chassis, crane and cargo box. At the same time, the environment of use should be considered. A straight-arm truck-mounted crane can be selected for an open operating environment, and a straight-arm truck mounted crane can be selected for a narrow operating environment. Folding arm truck mounted crane.

1. Introduction to truck-mounted crane:

A truck-mounted crane, also known as a truck-mounted lifting transport vehicle, is a vehicle that uses hydraulic expansion and contraction to realize the lifting and rotation of goods. It is widely used in construction, coal mines, warehouses, docks and other narrow places. It consists of a chassis, a container, a crane, etc. The truck-mounted crane chassis and crane are important components of the truck-mounted crane, which directly affect the transportation and working performance of the vehicle. , due to the particularity of the truck-mounted crane, the functional diversity of the truck-mounted crane is determined.

2. Truck-mounted crane selection:

1. The chassis girder of the truck-mounted crane is closely related to the crane. Before choosing, you must first determine the required crane tonnage and choose the appropriate one. The larger the tonnage of the chassis, the heavier the chassis weight is and the thicker the girder is. A large-tonnage crane with a small chassis is prone to girder breakage and rollover. A small-tonnage crane with a large chassis cannot give full play to the crane. lifting capacity.

2. The size and tonnage of the chassis and crane can be selected according to actual needs.

3. The corresponding engine can be selected according to the actual road conditions and operating environment. Generally, there is a lot of driving on mountain roads, which requires a powerful engine.

4. The cab can be equipped with air conditioning to make driving more comfortable. Navigation and ABS can be installed as needed, making travel convenient and safe.

5. You can choose a straight-arm or knuckle-arm crane. The straight-arm crane has a large working radius and is suitable for an open working environment. The knuckle-arm crane has high working efficiency and is suitable for installing various auxiliary equipment. , widely used in warehouses, factories, docks and other places with small working spaces; the installation location can be mid-mounted or rear-mounted. The mid-mounted type is installed behind the cab. It is convenient to choose the lifting position. Generally speaking, the tonnage of straight-arm truck-mounted cranes is relatively small. Smaller, most choose the mid-mounted type, the rear-mounted type is installed behind the cargo box, and the rear-mounted type is generally chosen for large folding arm truck-mounted cranes.