This is a CNC double V concentric lower die. How to change the opening. You can remove the lower die and flip it over, then reinstall it.

You can also remove it from above, flip it, and reinstall. The opening replacement is complete. No matter how you change it, there is no need to adjust the center of the opening.

The opening center remains unchanged. This is a CNC 4V concentric lower die. All four openings are in the center position.

This concentric design is a key feature in many modern press brake models for ensuring accuracy.

How to change the opening. You need to loosen the screws on the die holder, remove the lower die and flip it over. You can directly switch to a different opening.

Tighten the screws after confirming the opening. The opening replacement is complete. No matter how you change it, the opening center remains unchanged.

For a complete overview of this and other tooling solutions, feel free to browse our Brochures.

This is a CNC multi-V square die. How to change the flat opening. If you need this opening, tightening the outer handle and loosening the inner handle to adjust the opening.

After roughly aligning, let the upper die move downward. After approaching the opening, make fine adjustments to align the upper die and the opening.

This side's groove is now aligned. The other side also needs fine adjustment for alignment. The opening replacement is complete.

How to change the side or bottom opening. You need to hang the chain on the lower die and the machine, then loosen the handle.

Do the same on the other side, hang the chain on the lower die and the machine, loosen the handle, lift the lower die, flip the lower die to select the opening.

After confirming the opening, lower the die, remove the chains on both sides, and finely adjust both sides so that the upper die and the opening are aligned.

Choosing the correct die for your specific application is essential. If you have any questions about these processes or need guidance in selecting the right equipment, we’re here to help—feel free to contact us at any time.