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The Right Blade for Your Granulator
Granulator knives are the heart of your size-reduction operation. When they wear down, your throughput drops, your energy consumption rises, and eventually your machine stops. Virtus Equipment Direct stocks genuine ZERMA America granulator knives so you can get back up and running fast. No waiting on overseas lead times.
Genuine ZERMA Granulator Knives
Rotor and stator knives precision-ground to exact OEM tolerances. Every blade is built to fit and perform like the original.
Stator Knives
120 x 20 x 20 Stator Knife
SKU 80001290. For GSL-180-120 compact granulators. D2 tool steel, 58-62 HRC.
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180 x 20 x 20 Stator Knife
SKU 80001270. For GSL-180-180 medium-capacity granulators. CNC-machined, D2 tool steel.
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291 x 20 x 20 Stator Knife
SKU 80001300. For A-18 and GSL-180-300 granulators. Reversible design, D2 tool steel.
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430 x 20 x 20 Stator Knife
SKU 80001230. For GSL-180-430 high-capacity granulators. Maximum length for continuous high-volume runs.
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28 x 25 x 7 Rotor Knife
SKU 80001030. For GSL-180 slow-speed granulators. D2 tool steel, 58-62 HRC, reduced vibration.
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64 x 45 x 12 Rotor Knife
SKU 80001041. For GSL-200 series granulators. Handles tough materials and high-volume applications.
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Maximum Capacity Heavy Duty Rotor Knife
For GSH and maximum-capacity granulators. Built for thick-walled parts, purge, and hard engineering plastics.
Shop This KnifeSlow Speed Granulator Knives
Designed for the ZERMA GSL slow-speed granulator. These blades are optimized for low-noise, low-dust granulation of plastic parts, sprues, and runners. Precision-ground cutting edges for consistent particle size.
Applications
- Injection molding sprues & runners
- Plastic parts & components
- Soft to medium-hard materials
Compact Soundproofed Granulator Knives
Replacement blades for the ZERMA GSC compact soundproofed granulator. Built for in-press or beside-press applications where noise reduction and compact footprint are critical.
Applications
- In-press granulation
- Beside-press applications
- Noise-sensitive environments
Tangential Granulator Knives
Precision blades for the ZERMA GST tangential-feed granulator. The tangential rotor design delivers superior cutting efficiency and reduced fines. These knives are engineered to match.
Applications
- Blow molded parts
- Thick-walled components
- High-volume throughput
Economical Granulator Knives
Cost-effective replacement blades for the ZERMA GSE economical granulator. Same ZERMA quality and OEM tolerances at a value price point. Ideal for high-frequency replacement cycles.
Applications
- General purpose granulation
- Light to medium materials
- High-frequency replacement cycles
Heavy Duty Granulator Knives
Industrial-grade blades for the ZERMA GSH heavy-duty granulator. Built to handle the toughest materials including thick-walled parts, purge, and hard engineering plastics without premature wear.
Applications
- Heavy-walled parts & purge
- Engineering plastics (PC, ABS, Nylon)
- High-impact applications