Stator knives | bed knives
Metav supplies stator knives for many granulator models from Herbold, Alpine Hosokawa, STF and others, ensuring precise cutting geometry and longer tool life. These bed knives work against rotor knives to fine-grind plastic waste, with adjustable clearances for cleaner cuts and optimized recycling efficiency.
Maximise Shredding Performance with Stator Knives | Bed Knives
Stator Knives | Bed Knives are essential components for efficient Plastic Recycling in granulators and shredders. These stationary blades work opposite the Rotor Knives to slice and micronize Plastic Waste, and they determine the final particle quality through precise Cutting Geometry. Metav Werkzeuge supplies tailored solutions that fit leading machine brands and improve throughput and uptime.
How These Knives Work and Where They Make a Difference
In granulators, the Stator Knives are mounted inside the cutting chamber and cooperate with the rotating blades to shear material. Their position and the adjustable Cutting Clearance between stator and rotor control particle size and cutting forces. When feedstock varies—rigid ABS, soft PE or mixed production offcuts—adjusting the Cutting Angle and knife material ensures consistent results. In heavy-duty recycling lines, proper knife selection reduces clogging, decreases vibration and limits heat generation.
Typical Applications and Critical Situations
For continuous production environments, these blades are vital where throughput, particle consistency and machine availability are priorities. During high-wear operations or when processing contaminated or reinforced plastics, choosing knives with higher Wear Resistance and optimized geometry prevents premature downtime. Where fines and uniform output are required, accurately set Cutting Clearance is decisive.
Why the Right Knife Choice Delivers Measurable Benefits
Selecting the correct Stator Knives yields clear economic and technical advantages. Reduced grinding effort improves energy Efficiency, while longer intervals between regrinds lower maintenance hours. Moreover, an aggressive Cutting Angle can increase throughput for bulky inputs, whereas a more robust edge profile boosts Durability when abrasive contaminants are present. Metav Werkzeuge combines material science and tested geometries to deliver blades that balance Sharpness and resistance for varied recycling tasks.
Practical Advantages at a Glance
- Increased Throughput: optimized geometry for faster material flow
- Improved Particle Consistency: tight Cutting Clearance control
- Lower Maintenance Frequency: hardened steels and edge treatments enhance Durability
- Compatibility: custom fits for numerous OEM machines
- Enhanced Safety: stable cuts reduce vibration and risk
Trusted Machine Partners and an Outstanding Manufacturer
Metav Werkzeuge supports models from leading OEMs such as Herbold, Alpine Hosokawa, STF, Condux, Eldan, Neue Herbold, Amis Zerma, Getecha, Wanner and Previero. These collaborations ensure that replacement Stator Knives | Bed Knives are precisely matched to machine tolerances and operational demands. Metav Werkzeuge stands out for its application-focused design, quality control and service orientation.
Clear Recommendation for Reliable Cutting Performance
Choosing the right Stator Knives | Bed Knives tailored to your feedstock and machine model maximises productivity and material quality.
If you need personalised advice, our customer service team is available to recommend the optimal knife geometry and material for your recycling line. In short: invest in the correct Stator Knives to secure consistent output, longer service intervals and higher overall efficiency.
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Mail: info@metav-werkzeuge.com
FAQ
What are granulator static knives | bed knives used for and which machines are they compatible with?
Granulator static knives, also called bed knives, are mounted in the grinding chamber of a granulator and serve as the stationary cutting partner for rotor knives to shred and finely grind plastic waste. Metav Werkzeuge supplies stator knives compatible with a wide range of granulator models from manufacturers such as Herbold, Alpine Hosokawa, STF, Condux, Eldan, Neue Herbold, Amis Zerma, Getecha, Wanner and Previero, among others.
How do stator knives affect cutting performance and service life?
Stator knives influence cut quality and longevity through their cutting geometry and material selection. The gap between stator and rotor knives can be adjusted to suit the input material; a flatter cutting angle produces a more aggressive cut, while knives with a micro-bevel offer a more robust cutting edge and improved wear resistance.
How should I adjust the cutting gap on my granulator?
Adjust the cutting gap according to the material being processed: smaller gaps yield finer, cleaner cuts for softer plastics, while larger gaps can help process bulkier or more contaminated inputs. Always follow your machine manufacturer's guidelines and perform adjustments with the machine powered down and locked out.
Can stator knives be re-sharpened, and how often should they be serviced?
Yes, stator knives can often be re-sharpened to extend service life, but this depends on the knife material and wear pattern. Service intervals vary with throughput and material abrasiveness; establish a routine inspection schedule and recondition or replace knives when cutting quality diminishes or tolerances are exceeded.