Flintec 52-18SS - Manual (Page 4)

4
Principle of Rocking System
The rocking pin is “self centering”. The pin has relatively large radiuses (larger than ½ the pin height) and
therefore the rocker strives to stand straight up. With pins in vertical position, or near to vertical position,
possible horizontal forces between the load cells are zero, or very close to zero, which enhances repeatability and
thus the accuracy of the scale. The Rocking System is the most accurate load introduction system there is for
multi load cell scales.
The Rocking System comes in 2 versions. With rocking pin bumping internally in the loading cup (figure 1),
respectively with regular rocking pins and external bumpers (figure 2).
Figure1. Type 52-18RS-C. Module with pin bumping internally in loading cup.
Figure 2. Type 52-18RS-A. Module with external bumpers.
Figures 3 and 4 below show a few examples of how to orient the Rocking System weigh modules.
Figure 3. Orientation with internally bumping pins. Figure 4. Orientation with external bumpers.