Stroke end blocks are used in forms shown in Figs. 1(a) and (b). The form (a) is used more often.

Although a stroke end block is a component for determining the bottom dead center of the die, it is not enough to decide once. Depending on the die, there are structures in which the die height changes due to regrinding. In such dies, it is necessary to adjust again in such situations.
A stroke end block is not used in one shot type dies, but is used very often in continuous feed type dies. The position of placing a stroke end block is very often the die set part on the outside of the plate constituting the die such as the die plate, etc. There is the danger of getting one's finger pinched due to carelessness during adjustment after setting up. This has been considered in the form shown in Fig. 1(b).
Caution about this matter is necessary when using a stroke end block of the form of Fig. 1(a).

The following are the two methods of using stroke end blocks.

1. Method of using for the purpose of determining the bottom dead center during setting up

This is the method of determining the bottom dead center by adjusting using the slide adjuster so that the stroke end block touches lightly.

2. Method of using for the purpose of suppressing fluctuations of the bottom dead center while carrying out press operations

This is the method of using for stabilizing the dynamic accuracy by always making the stroke end block butt after determining the bottom dead center using the slide adjuster. The press machine will be damaged if the butting is weak.

The stroke end block can be of the integral type (shown in Fig. 1) or can be of the type with a gap. Some methods of using the stroke end block with a gap for the purpose described in 1 above are shown in Figs. 2(a) and 2(b).

Once the setting up is complete, since the role of the stroke end block is finished, so that the fingers are not caught in that part, in this method the cap is removed thereby creating a gap and thus achieving safety.
The methods of using shown in Figs. 2(c) and 2(d) are those in which a cap used to create a gap between the top die and the bottom die during storage, and during use of the dies, a stroke end block is made to butt thereby stabilizing the bottom dead center.

Fig. 3 Placement of stroke end blocks inside a die

The method of using two pieces as shown in (a) is suitable for only determining the bottom dead center. In a method of use for stabilizing the bottom dead center, it is better to use four pieces as shown in (b).
When using multiple stroke end blocks, as far as possible, the height should be adjusted to be identical by carrying out simultaneous grinding.