Rotor knives
Replaceable knives mounted on a single rotor and used with fixed counter knives to control the working gap.
Industrial Shredder Components
Shredder Blades for Matched Cutting Systems
Replacement rotor knives, cutter discs and related cutting components for single-shaft and double-shaft shredders.
The right blade is selected around the machine, part position, fixing detail and working condition. Start with the cutting system—not a size copied from an unrelated supplier listing.
Single-Shaft KnivesDouble-Shaft Cutter DiscsDrawing or Sample Review
Send Your Blade Details
What are shredder blades?
Shredder blades are the cutting components that engage, tear and reduce material inside an industrial shredder. The exact part depends on the machine arrangement and its position in the cutting chamber.
Cutter discs
Coordinated cutter discs or claw-style cutters arranged on two shafts with spacers and a defined cutting relationship.
Counter knives and wear parts
Fixed knives, holders, spacers and related components that must match the surrounding machine structure.
Choose the blade route that matches your machine
These two product routes use different cutting arrangements. Open the matching page for fit checks, visible details and replacement guidance.
Rotor knives and counter knives
Single-Shaft Shredder Knives
For replaceable rotor knife blocks, counter knives and matched components in a single-rotor cutting chamber.
Review the single-shaft route →
Cutter discs and claw-style cutters
Double-Shaft Shredder Cutter Discs
For two-rotor cutter stacks where disc profile, bore, spacer arrangement and shaft position must work together.
Review the double-shaft route →Already know your machine arrangement? Open the matching route for fit checks and replacement guidance.
Start a fit reviewProduct forms and visible blade details
These images show examples of the product areas we review. They illustrate visible geometry, not a universal size or compatibility standard.
For an accurate match, send the machine model, part position, key dimensions and a clear photo or drawing whenever possible.
What needs to match before a blade is quoted?
A replacement part is a fit-and-duty decision. The same outside size can still belong to a different machine or cutting position.
Machine arrangement
Confirm whether the machine uses one rotor or two, and record the brand, model or a clear machine photo.
Part position
Identify a rotor knife, counter knife, cutter disc, claw, spacer or another component in the cutting chamber.
Fixing and bore details
Photos or drawings should show the bore, keyway, fixing pattern, thickness, seat and cutting direction.
Working condition
Material, contamination, wrapping risk, impact and target output help define the practical replacement focus.
Typical problems we help investigate
A problem description helps us decide what to check first. It does not replace machine and part verification.
Edge chipping or cracking
Review impact, contamination, mounting, cutting clearance and whether the blade position is correct for the machine.
Wear that develops too quickly
Compare the working material, abrasive load, cutting duty, material choice and the condition of the surrounding parts.
No drawing or uncertain fit
Use the machine model, worn sample, clear photos and key dimensions as a starting point for a replacement review.
A clear route from worn blade to replacement
Send the information you already have. We can identify what is missing before production details are confirmed.
01 / IdentifyShow the machine and worn part
Share the machine model, installation position and clear photos of the old knife or cutter.
02 / ReviewCheck the fit-critical details
We review dimensions, bore, fixing, stack or seat information and the working material.
03 / ConfirmApprove the replacement scope
Only after the machine and part details are clear do we confirm material, quantity and production requirements.
Why this page does not publish one universal size table
Shredder blades are not interchangeable simply because several listings show similar dimensions. A useful quotation must connect the number to one verified machine and part position.
Send these first
- Machine brand and model
- Old-part photos or a drawing
- Key dimensions and fixing details
- Required quantity and material
What we can support
Our first step is to clarify the cutting system and the replacement scope before any production detail is treated as final.
Route identification
Separate single-shaft rotor knives from double-shaft cutter discs and related wear parts.
Drawing or sample review
Review the information available from a drawing, worn component or clear installation photos.
Custom replacement scope
Clarify geometry, fixing, material and quantity only after the machine relationship is understood.
Photo-based first check
Use photos, dimensions and application details to identify missing information before quotation.
Have a worn part in hand? Send its photos and the machine information for a focused review.
Send the detailsRelated shredder systems
Review the machine layout if you are still deciding which blade route applies to your equipment.
Shredder blade questions
Short answers before you send a replacement request.
Can I order a blade by outside dimensions alone?
It is safer to provide the machine and part position as well. Bore, fixing, seat, cutting direction and stack arrangement can change the fit even when outside dimensions look similar.
What if I do not have an OEM drawing?
Send clear photos, the machine model and the key dimensions you can measure. A worn sample can also provide a useful starting point for a fit review.
Should I request single-shaft or double-shaft knives?
Check the rotor arrangement first. Single-shaft machines normally use rotor knives and counter knives, while double-shaft machines use coordinated cutter stacks on two shafts.
Can you supply a custom replacement?
We can review drawing-based or sample-based replacement requests after the mounting and working details are confirmed.
GET IN TOUCH
Need a matched shredder blade?
Please prepare the information you already have. The inquiry form is on our Connect Us page.
Helpful information to send
- Machine model or product type
- Key dimensions or mounting details
- Material or application and quantity
- Photo, drawing or old-part image if available