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Plastic granulator rotor and stator knives

In plastic granulators, rotor and stator knives are assessed as parts of a cutting set. Dimensions, hole layout, the plastic being processed and machine design all affect selection. Share information about the existing knives for a technical assessment of the set.

Stator knife

Stator knife · 01

Plastics and rubberRecycling

A stator knife used as a stationary counter-knife on plastics and rubber processing lines.

  • 1.2379 (D2)
  • Uncoated
Width
120 mm
Thickness
18 mm
Hardness
58 HRC
Tolerance
±8 µm
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Stator knife

Stator knife · 02

Plastics and rubber

A stator knife used as a stationary counter-knife on plastics and rubber processing lines.

  • Tungsten-alloy steel
  • TiN
Width
140 mm
Thickness
20 mm
Hardness
60 HRC
Tolerance
±6 µm
View product

Rotor knife

Rotor knife · 01

RecyclingPlastics and rubber

A rotor knife used as a rotating cutter in plastics and rubber processing machines.

  • 1.2379 (D2)
  • Uncoated
Length
220 mm
Thickness
18 mm
Hardness
58 HRC
Tolerance
±8 µm
View product

Rotor knife

Rotor knife · 02

Recycling

A rotor knife used as a rotating cutter in plastics and rubber processing machines.

  • Nickel-alloy steel
  • TiN
Length
220 mm
Thickness
18 mm
Hardness
61 HRC
Tolerance
±6 µm
View product

PRODUCT SELECTION GUIDE

Selecting rotor and stator knives for plastic granulation

For plastic granulator knife manufacture, we consider the rotating rotor knife and stationary stator knife as parts of one cutting arrangement. Identify which components will be replaced when requesting a new set or spare parts.

Rotating knives and stationary counter knives

The rotor knife works on the rotating side and the stator knife on the stationary counter-cutting side. Length, section, hole layout and cutting edges are assessed for the machine. Substituting one based on appearance does not establish set compatibility.

Describe the plastic and existing tooling

Share the plastic type, fillers or contamination and wear observed on the current knives. Remaining rotor and stator dimensions, sharpening history and machine adjustment instructions need joint consideration. Cutting clearance follows the machine's technical requirements.

Before requesting a quote

Can I order stator knives only?

Identify the components you want to replace. Dimensions and set geometry are checked for the new stator to work with the existing rotor; the part name alone does not confirm fit.

Can a reground rotor work with a new stator?

Remaining dimensions and available adjustment must be checked. Send sharpening history and machine information alongside photographs. Compatibility is assessed through technical review.

Does one granulator knife suit every plastic?

Not automatically. Polymer type, fillers, feed form and machine configuration affect selection. Compare catalog materials and geometry alongside this application information.

Choose industrial knives by application

Compare cutting tools manufactured by Universal Bıçak by their task. Product pages include actual photographs, catalog information and the technical details needed for an enquiry.

ST01

Stator knife · 01

The stationary counter knife in a plastics and rubber cutting arrangement. Assess it alongside the existing rotating knife and mounting dimensions.
Discuss your requirements ↗

From technical enquiry to manufacturing scope

01

Share your requirements

Describe the machine, material being cut, knife dimensions and quantity. Attach a drawing or a photo of the existing knife if available.

02

Assess the technical scope

Consider the product group, mounting details, material and operating conditions together. Clarify any missing information during the technical discussion.

03

Define the work stages

Define the manufacturing, machining or maintenance steps needed. Discuss dimensions, inspection and documentation requirements within the quotation scope.

04

Plan inspection and the next step

Clarify the agreed acceptance criteria and delivery scope. For technical questions during use, contact us with the product code and application details.

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UNIVERSAL B I Ç A K

Let’s define your technical requirements

Share your machine details, the material being cut and the knife dimensions. Attach a drawing or a photo of the existing knife if available so our team can assess the manufacturing or service scope.

Request a quote