The two most common cranes we usually use are truck cranes and all-terrain cranes, which are not very different in appearance and are easy to confuse. Today we will talk about the difference between all-terrain cranes and truck cranes.
The truck crane is a kind of crane installed on the ordinary car chassis or the special car chassis, and its driving cab is set separately from the lifting cab.
The shape is very similar to that of a truck crane. It can not only transfer quickly like a truck crane, and travel for a long distance but also meet the requirements of working on narrow and rough or muddy fields. The ground clearance is large, the climbing ability is high, and functions such as outrigger lifting are not required, but the price is high, and the requirements for use and maintenance are also relatively high.
The main differences
1. Differences in Chassis Design
The general truck crane is to add a lifting device to the chassis of the truck, which constitutes a truck crane. The chassis of the all-terrain crane is a professional site technical design. The two look similar, but the technical content is very different.
All-terrain cranes have two unique designs: a hydro-pneumatic suspension system and a multi-axle steering system design. It is precise because of these two designs that compared with the chassis of truck cranes, all-terrain cranes have stronger pressure bearing capacity, smoother driving performance, a more effective balance of axle loads and increased roll stiffness of the whole machine. All-terrain cranes can perform multi-axle driving and multi-axle steering and can have a variety of options to meet different work needs. The stability of work is improved compared with that of truck cranes, and it has a large ground clearance, which can work on rough ground.
2. Differences in the boom manufacturing process.
The boom manufacturing process of all-terrain cranes is much more advanced than that of general truck cranes. Generally, professional boom manufacturers use high-strength steel for production. For example, overseas booms generally use steel above 960 MPa, and some 100t-class cranes even use Weldox 1100 steel plates with a thickness of only 4mm produced by Swedish SSAB, which is currently developing 1300MPa ultra-high-strength steel plates. It can be seen that compared with the booms of general truck cranes, all-terrain cranes have greater rigidity, lighter weight and superior performance.
3. Differences in the bus control system
The electrical control system of the traditional truck crane is one-to-one direct and unique control, and the analogue signal flows in the wire. With the increasing complexity of the electrical system of the crane, especially the use of a large number of ECUs (Electric Control Unit), one-to-one communication has been unable to deal with complex problems.
The all-terrain crane adopts the optimized CAN bus control system, which simplifies the circuit channel, solves the optimization problem of multi-ECU communication and working together, and the complex logic control problem. It can also share system resources, display system information centrally, and improve the reliability of the system. And so on, make the user’s use, maintenance, warning, record, and fault diagnosis into one.
In general, all-terrain cranes combine the advantages of traditional truck cranes for rapid transfer and off-road and load-driving capabilities of off-road tire-mounted cranes. They have greater strength and pressure-bearing capacity and can lift heavy objects more reliably.
- The related spare parts of the truck crane and all-terrain crane are available.