Prepress balers

Our innovative prepress technology creates consistent, high density bales. It also cuts transport costs and uses significantly less power than conventional balers.

Using our prepress system, your baler will no longer cut off excess material. Instead it will rely on an initial pre-compression step to achieve the best bales.

How the prepress technology works

The prepress and main press are in the starting position. Material fills the main press chamber and hopper.
The prepress descends, compressing the material with downward force, ensuring the chamber is fully filled.
The main horizontal ram compresses the material using maximum force. The press chamber is closed = no knives required to cut off material. While steps 2 and 3 are taking place, material continues to fill the hopper.
Compression continues until the pre-set bale length is reached. Bale strapping begins.
The prepress opens and material from the hopper fills the chamber again. A new press cycle starts.

Benefits of Prepress Technology

30% lower electricity costs than a shear baler while compressing the same amount of material.
makes knives on the main press unnecessary
guarantees an even density throughout the bale = square bales
makes it possible to bale material without using a shredder (e.g. large cardboard boxes)
makes it possible to bale most recyclables in good shaped bales
gives low service- and maintenance costs
eliminates the need to keep shear blades sharp and well adjusted. A worn or badly adjusted shear blade will not cut properly, especially critical when baling plastic foil
eliminates the need for auxiliary equipment when pressing recyclables – the material stays in the press chamber without extra “force“ because of the two-ways compaction.

Bulky materials

One of our baler versions, LP 110 DH, has a really big feed opening (over 2 meters) for effective baling of bulky material. These really big feed openings requires a special two-step prepress, in order to limit the height of the baler.

The feed opening can also be adjusted to ensure highest possible compaction ratio and the correct bale length when baling heavy material.

When you set the baler to bale heavy material, both prepress and main ram are half way into the press chamber, thus reducing the press chamber volume by 50%. With this function your baler is truly versatile and will make a perfect bale whether you bale bulky and light material or heavy and compact material.