Taking Germany as an example, there are currently about 20,000 ordinary trucks and vans in Germany that need to be installed with tail panels for different purposes. In order to make the tailgate more and more used in various fields, manufacturers have to continue to improve. Now, the tailgate is not only an auxiliary loading and unloading tool that becomes a working slope when loading and unloading, but also can become the rear door of the carriage with more functions.
1. Reduce self-weight
In recent years, manufacturers have begun to gradually use aluminum materials to manufacture tailgates, thereby effectively reducing the weight of the tailgate. Secondly, constantly try to adopt new materials and processing methods to meet the new requirements of users. In addition, there is a way to reduce self-weight, which is to reduce the number of hydraulic cylinders used, from the original 4 to 3 or 2. According to the principle of kinematics, each tailgate must use a hydraulic cylinder for lifting. To avoid twisting or tilting of the loading dock, most manufacturers use a design with 2 hydraulic cylinders on the left and right. Some manufacturers can balance the torsion of the tailgate under load with only 2 hydraulic cylinders, and the increased hydraulic cylinder cross-section can withstand more pressure. However, in order to avoid damage due to long-term torsion, this system using 2 hydraulic cylinders is best only to withstand a maximum load of 1500kg, and only for loading and unloading platforms with a maximum width of 1810mm.
2. Improve durability and reliability
For a tailgate, the load-bearing capacity of its hydraulic cylinders is a factor to test its durability. Another decisive factor is its load moment, which is determined by the distance from the center of gravity of the load to the lever fulcrum and the weight of the load. Therefore, the load arm is a particularly important factor, which means that when the loading and unloading platform is completely When stretched out, its center of gravity should not exceed the edge of the platform.
In addition, in order to increase the service life of the tailgate of the car and ensure its durability and reliability, manufacturers will take different methods, such as using embedded maintenance-free bearings, bearings that only need to be lubricated once a year, etc. The structural design of the platform shape is also critical to the durability of the tailgate. For example, the Bar Cargolift can make the platform longer in the direction of travel of the vehicle with the help of a new shape design and a highly automated processing line using welding robots. The advantage is that there are fewer welds and the platform as a whole is stronger and more reliable.
Tests have proved that the tailgate produced by Bar Cargolift can be lifted and lowered 80,000 times under load without failure of the platform, load-bearing frame and hydraulic system. However, the lifting mechanism also needs to be durable. Since the lift mechanism is susceptible to corrosion, good anti-corrosion treatment is required. Bar Cargolift, MBB and Dautel mainly use galvanized and electrocoating, while Sorensen and Dhollandia use powder coating, and can choose different colors. In addition, hydraulic pipelines and other components should also be made of environmentally friendly materials. For example, in order to avoid the phenomenon of porous and loose pipeline foreskin, Bar Cargolift company uses Pu material foreskin for hydraulic pipelines, which can not only prevent salt water erosion, but also resist ultraviolet radiation and prevent aging. effect.
3. Reduce production costs
Considering the pressure of price competition in the market, many manufacturers have transferred the production workshop of product components to Eastern Europe, and the aluminum supplier provides the entire platform, and only needs to be assembled in the end. Only Dhollandia is still producing in its Belgian factory, and Bar Cargolift also manufactures tailgates on its own highly automated production line. Now the major manufacturers have adopted a standardization strategy, and they provide tailgates that can be easily assembled. Depending on the structure of the carriage and the structure of the tailgate, it takes 1 to 4 hours to install a set of hydraulic tailgate.
Post time: Nov-04-2022