What is the lifting torque in construction?
You're lifting moment, it should be said of the tower crane lifting moment, its calibration value is the biggest and the amplitude according to the basic arm lifting rated lifting weight of the product. Our country crane model establishment is rated torque as the main parameters to be defined, QTZ80, for example shows as follows: QTZ80, including QTZ representative self-lifting tower crane and 80 for nominal lifting moment 800 kn m. (rated lifting weight of the product) and the corresponding basic arm divided by 10
When buying in tower crane, the relationship between the two types of cranes should be understood, and the hoisting moment curve is carefully compared. The company design, production of QTZ80 can realize three arm length, three kinds of arm length under the condition of nominal torque are shown in table 1: table 1 parameter name parameter values to install arm length (m) 505560 arm side crane load (kN) 15.612.551035 m lifting weight (kN) 25.7124.2822.85 nominal lifting moment (900850800 kN. M) can be seen from the table above and nominal lifting moment arm length. And our national standard is according to the nominal load torque (kN. M), named TC3524 currently in the market, TC4020, TC4516, TC5014, TC5015, TC5312, TC5610, TC5513, TC5612, TC6010 tower cranes are claimed to QTZ80 tower crane, its production cost and purchase price difference is very big. Mastering this is not to be confused by the different Numbers of the same model, making scientific choices
However, because of the influence of the import of tower crane, the market is a kind of new model identification method, the maximum length (m) and arms end (the largest) rating of the space can lift weight (kN) two main parameters to mark, the make and model of the tower crane such as QTZ80 logo for TC6010, TC5513. This method of labeling is not consistent with our national standards, but it is an intuitive reflection of the crane performance of the tower machine, which is currently used more.
