Thursday, March 12, 2026
The WEIMA S7 shredders are for the most extreme of applications. This machine line boasts stability, functionality, consistent throughput, and availability. A variety of sizes and options guarantees customer-specific solutions for almost all applications. This line of machines boasts extremely robust construction and almost endless capabilities for the shredding of scrap. There are over 80 optional features, making this a customizable shredding solution for almost any application.
Achieve demanding throughput targets with Heavy Duty V rotor
The profiled V rotors of the S7 series have a diameter of 700 mm, with up to three rows of knives. All sizes are universally applicable and guarantee maximum throughput rates at low wear costs. The cutting knives can be reversed several times and are available in sizes of 40, 60, 80 and 100 mm.
Trouble-free shredding thanks to PLC control with automatic reversing system
With just one central, high-quality Siemens PLC control cabinet, you control not only the shredder but also the entire conveyor system. If required, you can also control downstream secondary shredders within the production line. Large touch displays facilitate operation. An automatic reversing system ensures a trouble-free shredding process.
Safe shredding of large-volume parts with extended hopper attachment
Individual hopper extensions and enclosures with plastic curtains are available to prevent materials from being thrown from the hopper. In the heavy duty version, the feed hopper is double-walled and thus effectively contributes to sound insulation. For example this S7.30 lift-up shreds huge PE pipes. The material is then granulated and fed to an extruder.
Safe shredding of large-volume parts with extended hopper attachment
Individual hopper extensions and enclosures with plastic curtains are available to prevent materials from being thrown from the hopper. In the heavy duty version, the feed hopper is double-walled and thus effectively contributes to sound insulation. For example this S7.30 lift-up shreds huge PE pipes. The material is then granulated and fed to an extruder.
Highest precision with flexible materials with F rotor including Vautid wear protection
The F rotors of the S7 series were designed for extreme demands. An optional protective layer of Vautid counteracts increased wear. Optional rotor cooling is available for particularly temperature-sensitive materials.
A WEIMA S7.20 lift-up single-shaft shredder shreds production waste from the automotive industry: plastic motor covers, rear window shelving units, as well as large plastic drums. Once shredded, these materials will be immediately granulated.
Precise material feeding due to segmented floor
Particularly when shredding very thin materials such as films or fibers, it is recommended to use a segmented floor, which guides the ram even more precisely and prevents jamming. The shock valve at the end of the hydraulic ram also absorbs shocks to the ram, thus reducing wear.
Protected rotor bearings thanks to offset mounting from the frame
WEIMA shredders are known for their durability. This is also due to the spherical roller bearings used for our rotors. The bearings are mounted at a distance from the machine and protect against contaminants and uncontrolled forces acting on the rotor. It also facilitates regular maintenance.
The screen baskets of the S7 series can be swung upwards. This allows free access to the rotor for convenient maintenance without components getting in the way. Screens can be changed just as easily. The screen basket can be equipped with round hole screens in various diameters, zigzag, honeycomb, and kidney screens – depending on the desired shredding result.
Stronger. Wider. Tougher. with Heavy Duty options
The higher the requirements, the more robustly a shredder must be built. For this reason, we use high-quality steel sidewalls with 40 mm wall thickness for the S7 series. Together with the extra large rotors as well as suitable drives, WEIMA machines are ready for anything.
Less vibration with flexible set up with hard rubber feet
Despite their many tons of weight, shredders in these series feature practical machine feet made of hard rubber. They have a vibration-damping effect and reduce vibrations in the immediate vicinity.
WEIMA at a glance
Shredding and compaction technology from WEIMA helps to turn unused waste back into recyclable materials. As a German mechanical engineering company, we are a partner to industry and trade, a driver of the circular economy and a proud solution provider for a sustainable future. Their machines can be used for the recycling, disposal and processing of all types of waste – especially for materials made of plastic, wood, paper and biomass.
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