WEIMA G.300 Duo Dehumidifier for Packaging

The length of the discharge chute can be extended individually up to five metres. Unlike a screw press, the WEIMA press’s higher discharge point means that no conveyor belt is required for unloading into a container or tipping skip. This allows the press to be positioned optimally to suit your space requirements.

You can choose from a range of hopper capacities: 600 l, 800 l, 1,200 l or 2,000 l. In addition, a manual or automatic hopper lid can be fitted to ensure safety and hygiene.

Safe and hygienic. Thanks to their easy-to-clean design, WEIMA dewatering presses ensure food safety, meet hygiene standards and simplify cleaning procedures. This helps to minimise downtime.

It can be used without any problems in automated multi-shift operation. Thanks to oil cooling via a heat exchanger, the hydraulic oil can be kept at a constant operating temperature without overheating.

Parameters such as pressing force and time, or the re-pressing function, can be set intuitively via the Siemens control system with touch display. Precise diagnostic messages ensure minimal downtime. Furthermore, full integration into the PROFINET system is possible. This allows upstream and downstream systems, such as conveyor belts or a lifting and tilting station, to be controlled in a user-friendly manner.

To ensure the G Series remains in service for many years, we use high-quality stainless steel. This protects the machine body and control cabinet from wear and corrosion, whilst also being low-maintenance and hygienic.

If required, the removal of liquids can be automated using level sensors in the product collection tray. The Liquiphants control the pumping out of the extruded material and automatically shut down the recycling press if downstream processes are at a standstill. We use screw pumps for the removal of paste-like liquids and centrifugal pumps for liquid materials.

To rinse any remaining product residue (e.g. yoghurt) off the moulded parts, a post-cleaning device in the form of spray nozzles can be fitted to the discharge pipe. The cooling water from the oil cooling system can be used for this purpose.

A horizontal agitator can be fitted to the feed hopper as an option. The continuous agitation of the material prevents bridging in the hopper, thereby ensuring a constant feed of material.

The G.300 press can be optionally fitted with a dual-pump hydraulic system. This enables the ram to return at twice the speed, thereby maximising throughput.

The walls of the pressing chamber are perforated to allow the drained liquid to flow out. The screen aperture size can be individually adjusted to suit the properties of your material. For paste-like materials such as yoghurt or quark, round holes up to 12 mm in diameter are generally used. For liquids, however, screen apertures as small as 4 mm are possible. In any case, it is important that small packaging fragments do not end up in the collection tray along with the liquid.

To enable the press to operate fully automatically, the feed hopper can be fitted with a level sensor. This allows upstream systems (conveyor belt) to be stopped or started automatically as soon as the hopper reaches its maximum capacity. A continuous flow of material prevents the hopper from becoming overfilled.