Manhole cover molds are mainly used to produce cement manhole covers. The characteristics of manhole cover molds are the standard sizes of manhole covers produced, which are suitable for use in communities, roads and other places. Heavier and stronger custom sizes.
The cement manhole cover is made by adding a certain proportion of steel brazing dimension to the cement, which is pressed by the manhole cover mold. It is more resistant to compression than the iron manhole cover, and it will not reduce the service life due to the erosion of rain and other things. Cement manhole covers are generally divided into circles and squares. In urban areas, the circular manhole covers are generally used because circular manhole covers are not easy to tilt and can better protect the safety of pedestrians and vehicles. The round manhole cover has the same length for each diameter through its center, so that if the manhole cover is rolled up by the passing vehicle, the diameter will be slightly wider than the wellhead below, and the manhole cover will not fall to the wellhead. Go inside.
Manhole cover load capacity refers to the pressure test performed by a pressure tester within a unit area, which is usually 40 tons heavy. If it is a freight car, the calculation formula for a 5-axle truck is: 5-axle x 40 tons = 200 tons. With a gross vehicle weight of 200T, the heavy-duty manhole cover can guarantee passage.