The Maximum Quick Turnaround Weight definition is the weight at which after waiting for the maximum amount of time allowable in accordance to your AFM (for the type and brake category fitted to the airplane involved) the fuse melt WILL NOT occur or have occurred.
Different times exist as per configuration and can be found in tabular form in your AFM.
For example 737NG AFM refers to 48-67 minutes depending on type of brakes and model.
For all brake categories: After landing at weights exceeding those determined from the maximum quick turnaround option in AFM- DPI, wait at least the Minimum Wait Time indicated in the table below and check that wheel thermal plugs have not melted before making a subsequent takeoff.
Real world scenarios do not generally use this data as this would mean the aircraft would have to wait for this specified minimum time before commencing onto another flight departure. Most airlines do not want to be restricted by this ground time, e.g. a ULCC using 25 minutes has little to gain applying the MQTW rules.
Instead, Recommended Brake Cooling charts exist for those landings which are not limiting but need thus evaluation of potential
reduced cooling time requirements (less then time in accordance with AFM). Always observe these limitations and release brakes in accordance with operating procedures for the time specified according to these charts.