How to choose reliable trailer legs for long-distance cross-border transportation

How to choose reliable trailer legs for long-distance cross-border transportation. Cross border long-distance trailer transportation involves frequent detachment and parking of trailers, bumpy roads, and variable weather conditions. As a key load-bearing component, if the gears are damaged, the legs deform, or the base cracks, it can directly cause the trailer to tilt, resulting in safety accidents. In addition, the supply cycle of accessories in cross-border areas is long, and quality control must be ensured during the procurement stage. Firstly, confirm the bearing capacity level, not just the lifting tonnage, focus on static bearing, and reserve sufficient safety margin. Priority should be given to using 28 ton support legs for cross-border heavy-duty transportation to meet the needs of heavy vehicle uncoupling and support. 24 ton support legs can be used for light load trunk lines, and low-priced products with insufficient bearing capacity should not be selected. When encountering uneven terrain or offset of the center of gravity of goods, the screw rod is easily bent and bent. Next, let's take a look at the internal transmission structure. For long-distance swinging, we recommend a dual speed gear structure. The high-speed gear can quickly rise and fall, while the low-speed gear is used for heavy load support. The joystick operation is effortless and reduces the driver's labor intensity. The gearbox must be well sealed and equipped with dust-proof and waterproof sealing rings to prevent rainwater and mud from entering the box along the way, causing gear wear and jamming. The screw adopts trapezoidal thread, surface heat treatment strengthening, and is equipped with a dust cover to prevent sand and gravel from scratching the thread and extend its service life. Re inspect the main material and welding workmanship, select high-strength manganese steel for the leg cylinder, ensure the pipe wall thickness meets the standard, and install triangular reinforcement bars on the base. Focus on the base weld seam, which is full and continuous, without porosity, virtual welding, or undercutting defects. The connection support between the base and the trailer beam is a weak point under stress, and inferior products only require simple spot welding, which can easily tear after long-distance vibration. When purchasing, manually shake and test the lift, and the expansion and contraction are smooth without any jamming or abnormal noise. The synchronization of the left and right legs is good. Anti corrosion treatment is particularly crucial for cross-border export vehicles. The legs are treated with electrophoresis and topcoat technology, which has stronger resistance to salt spray and rainwater erosion compared to ordinary spray painting. It is suitable for sea transportation and different climates in multiple countries to avoid rusting and jamming during transportation. The bottom support plate should also be thickened to increase the grounding area and prevent sinking when parked on soft construction sites or dirt roads. In addition, there is a distinction between linked and single action support legs. Single action support legs are preferred in cross-border multi road scenarios, with independent height adjustment on both sides. Even on uneven ground, the trailer can be kept level. Linked support legs are more suitable for flat and fixed stations. Many purchases only focus on the trailer beam and axle, neglecting the quality of the support legs. Failure of the support legs on cross-border roads can result in long-term shutdowns and huge losses. Long distance cross-border trailer selection, based on the maximum load capacity, road conditions along the way, and frequency of suspension, selects leg specifications, verifies load capacity, gear sealing, welding, and anti-corrosion, reduces the risk of failure from the source, and ensures stable and safe cross-border transportation.