The wet cutter offers major advantages for processing fibrous materials
The wet cutter RotaCut^® for industrial applications

The wet cutter RotaCut, our cutter with an integrated heavy material separator, can be used in a wide range of industrial applications. This cutter offers direct contact between the blades and cutting screen, which allows it to deliver defined cutting performance, which is a major advantage for processing fibrous materials. Moreover, as the wet cutter RotaCut simultaneously homogenizes the medium, it offers much more than merely pump protection for downstream systems. Medium that has been disintegrated in this manner an also be easily used in additional processes.

In industrial applications, the wet cutter RotaCut is usually used together with other Vogelsang products, such as rotary lobe pumps, progressive cavity pumps or other grinders, such as the XRipper. For example, in applications involving food wastes, not all materials are suitable for being pumped onward directly after an initial cutting step. Fish, meat and vegetable waste, in particular, often contain coarse fibrous materials that are separated in a heavy material separator.

Two wet cutter RotaCut models in particular have proven themselves effective in industrial applications: The wet cutter RotaCut RCX is used in abattoirs as part of the RedUnit in order to meet the requirements of the EU directive on hygiene. Thanks to its compact design and reliable cutting performance, the wet grinder RotaCut MXL is used on tankers to protect the pumps from foreign matter.

With features and options such as Automatic Cut Control (ACC) and Auto-Reverse function, the cutter is a key product for the shredding required in industrial applications.

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Brochure: RotaCut - Effective wet maceration

Features of the RotaCut^®

Separation of stones and metal parts is important for ensuring smooth operation of the cutter itself as well as of the downstream pumps and components, and also to prevent damage and blockages they may cause. Each RotaCut therefore has an integrated heavy material separator.

Vogelsang uses its proprietary software to develop cutting screens with optimized geometry for every size-reduction ratio. For operators, this means the best geometry at all times for smooth running, with minimal wear. The cutting screens are produced from wear-resistant special steel and offer twice the performance since they are reversible.

The cutting screens are exposed to high loads in cutters like the RotaCut. This is why in the RotaCut, they are not merely supported at several points, but rather their entire surface lies on a stable holder. This reduces deformation of the cutting screen and enables easy and energy-saving cutting across the entire surface.

Chopping down media with a high solids content in a small space places a great strain on the cutting screens. This is why we have optimized the holder on both the Pro and RCX series: the cutting screen is additionally stabilized by a central support. This minimizes deformation of the cutting screen and also enables efficient cutting despite high load operation.

Cutting blades and rotors have a decisive impact on the RotaCut's cutting performance. The asymmetric blade rotors we developed in-house deliver optimal chopping down performance with minimal wear. The movable bearing of the cutting blades ensures continuous contact between the cutting screen and blades – a solid foundation for reliable cutting of even the finest fibers.

Each RotaCut has a blade adjustment function that ensures that the cutting blade and screen are always in continuous contact. This contact is what enables reliable cutting of even the finest, long-fiber fibrous matter, such as hair, industrial fibers and grass entanglements.

Thanks to their design all RotaCut products are easy to service and maintain. Just a few motions are required to gain access to the cutting tools, which can be replaced on-site. The RotaCut is ready for use again in no time at all. The RotaCut does not need to be removed nor the cutter head disassembled.

Additional information:

Options of the RotaCut^®

The hole pattern of the cutting screens, along with the number of cuts, is decisive for the size-reduction ratio. To meet the requirements of every situation, we offer cutting screens for the RotaCut, depending on the size, with free passage from 4 mm to 50 mm. Stainless steel versions are available for aggressive media.

The Automatic Cut Control (ACC) automatically adjusts the RotaCut's blades and maintains constant pressure between the cutting screen and blades. Moreover, the pressure can be adjusted during operation; as high as necessary and as low as possible. This extends the lifetime of the cutting blades and screen, and enables automatic operation.

ACCplus further reduces the cost of maintenance and monitoring of the cutter. It monitors the cutting blades status online and displays it on an external display. This means it's no longer necessary to place the cutter out of service and open it to determine the cutting blades status. Additionally, this information can be processed and displayed by the (central) control and/or remote control.

The Auto-Reverse function detects blockages, such as those caused by coarse disruptive matter, and initiates corrective action. By periodically reversing, the function further ensures that a pair of sharp cutting edges is always used while dull ones are sharpened on the opposite site. This delivers optimal cutting performance with reduced power consumption.

Additional information:

For smooth operation of many plants, reliable foreign matter separation of stones and metal parts is a must, in addition to cutting. The adapted design of the heavy material separator is crucial. It has to be compatible with the requirements for the respective application as well as shredding. The RotaCut offers the most comprehensive selection of heavy material separators.

The Debris Removal System (DRS) available for the RotaCut RCX series enables regular removal of separated heavy material during ongoing operation. The system removes the heavy material with only minimal loss of medium (only around 15 l). In comparison to conventional solutions, the DRS reduces the work required by 80%.

The housing of the RotaCut is made of steel and is completely galvanized. Stainless steel variants are available for particularly aggressive applications. Cutting screens and blades are also available in steel and/or stainless steel versions.

Hydraulic or geared motors adapted for the prevailing conditions of the application are used to drive the cutter. A selection of geared motors with various power ratings and different speeds are available for every type, so the RotaCut can always be individually adapted to the respective application. The perfect motor is available for every task, from protection against fibers and coarse matter through to fine, homogeneous preparation of a suspension. Suitable cutting screens and blade rotors are available for individual adjustment of the size-reduction ratio.

Case studies for industrial applications

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