The two 120-ton special semi-trailers with the largest volume and the largest load in China were successfully developed at Shanghai Power Environmental Protection Equipment General Factory. Through heavy-duty driving tests, all performance and major technical indicators meet the design requirements. Recently, the two special semi-trailers have been shipped for trial operation at the Xi'an Taibao Opencast Mine site.
Model SS91201 special semi-trailer will be used in mining, metallurgical, chemical, construction, petroleum, power station and other construction departments to transport large-scale, overall equipment that is not easy to dismantle. The semi-trailer is 28 meters long, 6.5 meters wide, 48 tons dead weight, 120 tons maximum load capacity, 25 km/hour rated speed (full load), 1.4 meters height of the cargo platform, 9 degrees of climbing ramp angle, and one-lane double bridge 8 Tire suspension axle form. Compared with ordinary large semi-trailer semi-trailer, the car has two major characteristics: First, the main steel frame and other major steel structures using high-strength steel, the main components of the selection of cold resistance model, can adapt to -40 low temperature operation. The second is the hydraulic two-step folding springboard, which is used to realize the springboard folding and flipping through the cylinder, which can meet the needs of the excavator and other self-propelled machines, greatly reducing the height of the vehicle, improving the passability and safety of the cargo, and overcoming The traditional hydraulic integral springboard has the disadvantages of poor passability and fills the gap of domestic large-tonnage two-stage folding springboard.
The research and development of SS91201 large-scale semi-trailer not only improved the product technology of special vehicles, but also broke the monopoly pattern of large-tonnage semi-trailers in China's mining areas that rely on Canada, Australia and other foreign countries.
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