ENGEL tie-bar-less technology

A special design feature of the tie-bar-less ENGEL injection molding machines is their solid frame. The clamping unit is ideally supported and does not bend even with very heavy molds. Thanks to additionally available guide shoes for the moving platen, the mold weight can be significantly increased.

Each tie-bar-less clamping unit is precisely set up before delivery using the highly sensitive platen parallelism adjustment. Thanks to the pre-tensioning of the patented force dividers, the platen parallelism remains unchanged even when the mold is clamped.

Thanks to the three-point guide - two precision guide rails and the central guide of the clamping piston - the moving platen retains its alignment even during mold opening and closing.

In contrast to other designs, the stationery platen is not connected to the frame at the bottom, but at the rear. In this way, it absorbs the machine's vibrations symmetrically and remains parallel to the moving platen even when accelerating and decelerating.

The central Flex-Links enable the platen parallelism to be adapted precisely to the mold parallelism. The moving platen is lifted out of the guide shoes. With a perfectly clamped mold, this results in constant compression, any lateral forces are avoided, and the service life of the mold is increased.

Regardless of whether the cavities are in the middle or at the very edge of the platen - they all experience exactly the same clamping force. This is ensured by the patented Force Divider, which distributes the clamping force evenly over the entire clamping surface. This guarantees consistent high part quality, even with multi-cavity molds.