There are many types of rail scales， here specified the support-typed railway scale, the low-profile load cells act as sleepers.

Many low-profile load cells are installed under the rails with specified length to accommodate one or several carriages for weighing。 Based on light-duty or heavy-duty train, to select capacity of load cells is 12.50t, 15t, 30t, etc

The load cell should fit the rail size properly, then fixed them together firmly with special bolts and butterfly-styled lock.