Product Descriptions
Wanner CLE Series Granulation Machines
A Universal Size-Reduction Solution for Demanding Applications with Low Noise and High Performance
The Wanner CLE Series granulators are specially designed, universal granulation machines developed to minimize the high noise levels typically generated when processing hard, brittle, and glass-fiber-reinforced plastics. Suitable for in-line installation next to injection molding machines, the CLE series derives its name from "Compact Low Noise Emission" and offers a significantly lower sound level compared to conventional knife granulators.
In standard applications, noise issues are often addressed by installing sound insulation enclosures. However, such enclosures make machine access more difficult and require additional floor space. With the CLE series, Wanner has adopted a different engineering approach: instead of suppressing noise afterward, the goal is to reduce it directly at the source. Thanks to the design of the cutting chamber, machine frame, and vibration-damping structural details, structure-borne vibrations and resonance are minimized.
General Technical Design of the CLE Series
Wanner CLE granulators are based on the proven cutting geometry used in the C series. This ensures the production of high-quality, homogeneous regrind with a low dust content. What distinguishes the CLE series is its ability to deliver this cutting performance with a much lower noise level.
The machine housing and cutting chamber are specially reinforced to absorb sound radiating from the structure. During the grinding of hard and glass-fiber-reinforced plastics, impact and vibration levels are significantly reduced compared to conventional granulators. Comparative measurements have shown that the CLE series can achieve noise reductions of up to 9 dB(A) compared with granulators in the same class. In practical terms, this corresponds to a noise level close to that of crusher-type granulators operating almost without screens.
CLE 23.35 Model - Technical Specifications
The CLE series is offered with the CLE 23.35 model, which is optimized for in-line applications next to injection molding machines. This model has been developed specifically for demanding production environments with high performance expectations.
Cutting chamber opening: 230 × 350 mm
Rotor diameter: 170 mm
Number of rotor knives: 12 + 12
Number of stator knives: 2 + 2
Motor power: 3.0 kW
Machine weight: approximately 340 kg
This technical configuration enables the stable and safe grinding of both large sprues and hard, thick-walled parts. Thanks to the optimized cutting geometry, granule size remains uniform while dust generation is kept to a minimum.
Low Noise Performance - Comparative Test Results
One of the most important advantages of the CLE series is its measurably low noise level. Typical results obtained from comparative tests on different materials are as follows:
PA 6.6 GF (8 mm rod): approximately -9 dB(A)
ABS sprue (8 mm rod): approximately -5 dB(A)
PP sprue (8 mm rod): approximately -3 dB(A)
These values clearly demonstrate how effective CLE granulators are at reducing noise, especially when processing glass-fiber-reinforced and brittle plastics. Lower noise levels improve operator comfort while also providing significant benefits in terms of occupational safety and ergonomics within production areas.
Energy Efficiency and Intelligent Control Systems
The Wanner CLE Series can optionally be equipped with Green Line and IQ Line energy-saving control systems. These systems ensure that the granulator operates only when required, enabling substantial energy savings.
The Green Line control system prevents idle operation through an automatic start-stop function. In typical injection molding applications, energy savings of up to 70-75 percent can be achieved.
The IQ Line control system features a frequency inverter-based design. Rotor speed can be precisely adjusted to match the injection molding process, and when the speed is reduced, energy consumption decreases almost proportionally. In addition, the OPC-UA interface allows digital monitoring of energy consumption, operating times, downtimes, and maintenance intervals. This makes the CLE series a granulation solution fully compatible with Industry 4.0 concepts.
Modular Design and Application Flexibility
The CLE 23.35 model can be supplied in various configurations, including standard hoppers, sprue picker-compatible hoppers, high stands, and integrated dust extraction units. This modular design allows the CLE series to be configured in full alignment with the injection molding line and the chosen recycling strategy.
The integrated dust extraction unit significantly improves granulate quality, particularly when processing glass-fiber-reinforced and brittle materials. Fine particles are separated, ensuring cleaner and more stable regrind feeding back into the production process.
Ease of Maintenance and Long Service Life
CLE series granulators are designed to make maintenance and cleaning extremely convenient. The easily accessible cutting chamber and tool-free access allow quick entry to the screen and rotor system, reducing material changeover times and increasing machine uptime.
Wear-resistant cutting chamber components and the robust frame design ensure that the CLE series delivers stable performance over many years. These characteristics play a key role in reducing the total cost of ownership.
Conclusion
Wanner CLE Series granulators represent a professional recycling solution for in-line use next to injection molding machines, combining low noise emission, high granulate quality, energy efficiency, and modular design. They are an ideal choice for manufacturers seeking quiet and stable operation, particularly in production environments where hard, brittle, and glass-fiber-reinforced plastics are processed.
