Pipe type products are also relatively common, and many mold designers do not understand the principle of arc core pulling, let me share with you.

Due to the relatively long stroke of arc core pulling, oil cylinder core pulling is required, as shown in the figure below

For arc core pulling, the slider insert needs to be divided into several pieces, and the core is pulled along the arc of the product during core pulling, as shown in the following figure.

Slider inserts are connected with snap keys and positioned with pins, as shown in the following figure：

The position of the snap key in the slider insert must be avoided to avoid interference between the snap key and the slider insert when the core is drawn in an arc, as shown in the following figure.

The slider inserts must be positioned to facilitate smooth mold clamping without misalignment, as shown in the following figure