Two Counter-Rotating Shafts
The cutter shafts work against each other to pull bulky feed into the engagement zone.
DOUBLE-SHAFT INDUSTRIAL SHREDDING EQUIPMENT
Double-Shaft Shredders
High-torque primary shredding for bulky plastic, wood, rubber, cable and selected mixed industrial materials.
2 COUNTER-ROTATING SHAFTS
1 OR 2 MAIN MOTORS
PRIMARY SIZE REDUCTION
1 OR 2 MAIN MOTORS
PRIMARY SIZE REDUCTION
A double-shaft shredder uses two counter-rotating shafts fitted with cutter discs or claw-style knives to grab, tear and reduce bulky feedstock. The right configuration depends on the material, largest feed piece, target reduction and downstream process.
- Two counter-rotating cutter shafts
- Grab-and-tear primary size reduction
- Configuration matched to material and duty
WHY DOUBLE-SHAFT
What Makes Double-Shaft Shredding Different?
The two-shaft arrangement is selected for a different reduction duty from a screened, fine-size process. Start with the material and the next process step.
Low-Speed, High-Torque Action
Torque-oriented cutting helps handle large, mixed or resistant feedstock under the right configuration.
Primary Size Reduction
The goal is often to reduce volume or break down material before conveying, sorting or secondary processing.
Material-Matched Cutters
Cutter profile, thickness, spacing, clearance and drive choice should be reviewed together.
HOW IT WORKS
Two Shafts Built for Grab-and-Tear Reduction
The two cutter shafts work in opposite directions to pull bulky material into the cutting chamber and reduce it through repeated engagement between the cutters.
Load
Material enters through a hopper sized around the feed form and largest piece.
Counter-rotate
Two shafts rotate against each other to draw material toward the cutter engagement zone.
Grip & tear
Cutter discs or claw-style knives grip, tear and compress bulky feedstock for primary reduction.
Discharge
Reduced material leaves the chamber for collection, conveying or the next processing step.
Important:The image is a practical illustration, not a universal engineering drawing. Actual shaft, cutter, clearance and discharge arrangements vary by machine model and material.
SELECTED APPLICATIONS
Where Double-Shaft Shredders Fit Best
One double-shaft design may serve more than one material stream. The application description is a starting point for configuration review, not a blanket material guarantee.
01BULKY PLASTIC
Plastic, Drums & Pipes
For bulky plastic items, containers, pipes and production waste that benefit from grab-and-tear primary reduction.
02WOOD & BIOMASS
Wood, Pallets & Biomass
For pallets, timber waste, branches and selected biomass where feed size and moisture must be reviewed together.
03RUBBER & CABLE
Rubber, Tires & Cables
For selected rubber, tire, cable and wire streams where torque demand, wrapping risk and wear parts are important.
04INDUSTRIAL WASTE
Mixed & Bulky Industrial Waste
For mixed industrial materials and bulky waste when the feed composition, contaminants and downstream target are known.
CONFIGURATION AREAS
Configured Around the Feed and Reduction Duty
A double-shaft shredder is not selected by shaft count alone. These are the main areas to review before a machine or replacement part is matched.
Counter-Rotating Shafts
Two independent cutter shafts and their rotation relationship create the primary grab-and-tear action.
Cutter Discs & Claw Knives
Cutter profile, thickness, spacing and engagement should match the material and reduction duty.
Main Drive Arrangement
Single-motor synchronized drive or independent dual-motor drive should be selected around feed resistance, capacity and duty cycle.
Hopper & Cutting Chamber
Chamber width, hopper opening and internal clearance should accommodate the largest feed piece and material form.
Wear Parts & Clearances
Cutters, spacers, shafts and chamber components work together and should be matched to the original machine layout.
Discharge & Line Integration
Collection, conveying, sorting or secondary processing affects the required discharge arrangement.
How to read the configuration“Main drive motors” refers to the primary shaft drive, not auxiliary motors for feeding, hydraulics or conveying. Confirm motor count, gearbox arrangement and total main-drive power for the selected model.
Start with four inputsMaterial · largest feed piece · target reduction · throughputSEND DETAILS
FEATURED DOUBLE-SHAFT MODELS
Featured Double-Shaft Shredder Models
Representative machine references from the double-shaft series. Share your material and reduction requirements so the working configuration can be reviewed.
500-Type High-Power Dual-Motor Shredder for Multi-Function Waste Recycling
Selected from the original local SKU folder. Confirm the shaft arrangement, main-drive layout, cutter system, chamber and working duty for the final machine configuration before quotation.
600-Type Double-Shaft Shredder for Glass Bottles, Tempered Glass Film, Frozen Meat & Bones | Anti-Splash Design
Selected from the original local SKU folder. Confirm the shaft arrangement, main-drive layout, cutter system, chamber and working duty for the final machine configuration before quotation.
800-Type Double-Shaft Shredder for Cables, Wires, Rubber, Tires, Construction Waste & Renovation Wood
Selected from the original local SKU folder. Confirm the shaft arrangement, main-drive layout, cutter system, chamber and working duty for the final machine configuration before quotation.
1000-Type Industrial Twin-Roll Shredder for Construction Solid Waste & Wooden Pallets | Continuous Operation
Selected from the original local SKU folder. Confirm the shaft arrangement, main-drive layout, cutter system, chamber and working duty for the final machine configuration before quotation.
1200-Type Industrial Shredder for Plastic, Tires, Rubber, Woven Bags, Bulk Bags, Scrap Metal & Wood
Selected from the original local SKU folder. Confirm the shaft arrangement, main-drive layout, cutter system, chamber and working duty for the final machine configuration before quotation.
TECHNICAL OVERVIEW
Double-Shaft Shredder Technical Overview
The fields below describe the configuration points that should be confirmed for a double-shaft machine. Exact figures depend on the selected model and material.
Twin shaftsShaft arrangement
Counter-rotationPrimary cutting motion
High torqueBulky-feed duty
Material-basedFinal configuration
| Technical area | Double-shaft reference | Confirmation point |
|---|---|---|
| Shaft arrangement | Two counter-rotating cutter shafts | Confirm shaft layout and drive arrangement |
| Cutter system | Cutter discs, claw-style knives and spacers | Confirm cutter dimensions, spacing and material |
| Main drive motors | One or two main motors, model-dependent | Confirm motor count and total main drive power |
| Drive configuration | Single synchronized drive or independent dual drive | Confirm gearbox coupling, overload protection and control logic |
| Feed and chamber | Hopper and cutting chamber sized to the feed | Confirm largest feed piece and chamber dimensions |
| Discharge | Collection or downstream line connection | Confirm target reduction and discharge layout |
| Model | Cutter specification | Power | Cutter count | Gearbox reference | Speed (r/min) | Overall dimensions (m) |
|---|---|---|---|---|---|---|
| 600-Type | Φ200 × 10 | 15 kW | 48 | 400 | 18–25 | 1.45 × 0.87 × 2.2 |
| 600-Type | Φ200 × 20 | 15 kW | 24 | 400 | 18–25 | 1.45 × 0.87 × 2.2 |
| 800-Type | Φ200 × 20 | 15 kW × 2 | 32 | 400 × 2 | 18–25 | 2.15 × 0.87 × 2.2 |
| 800-Type | Φ300 × 30 | 30 kW × 2 | 18 | 650 × 2 | 18–25 | 3.4 × 1.2 × 2.2 |
| 1000-Type | Φ300 × 25 | 30 kW × 2 | 32 | 650 × 2 | 18–25 | 3.4 × 1.25 × 2.2 |
| 1000-Type | Φ300 × 30 | 30 kW × 2 | 27 | 650 × 2 | 18–25 | 3.4 × 1.25 × 2.2 |
| 1000-Type | Φ400 × 40 | 45 kW × 2 | 20 | 750 × 2 | 18–25 | 3.4 × 1.25 × 2.2 |
| 1200-Type | Φ400 × 30 | 55 kW × 2 | 38 | 650 × 2 | 18–25 | 4.15 × 1.25 × 2.2 |
| 1200-Type | Φ400 × 40 | 55 kW × 2 | 28 | 750 × 2 | 18–25 | 4.15 × 1.25 × 2.2 |
| 1500-Type | Φ400 × 30 | 75 kW × 2 | 48 | 750 × 2 | 18–25 | 4.15 × 1.25 × 2.2 |
| 1500-Type | Φ400 × 40 | 75 kW × 2 | 26 | 750 × 2 | 18–25 | 4.15 × 1.25 × 2.2 |
| 1500-Type | Φ400 × 50 | 75 kW × 2 | 28 | 850 × 2 | 18–25 | 4.15 × 1.25 × 2.2 |
| 2000-Type | Φ530 × 50 | 90 kW × 2 | 38 | 850 × 2 | 18–30 | 5.25 × 1.78 × 2.2 |
| 2000-Type | Φ600 × 60 | 90 kW × 2 | 31 | 850 × 2 | 18–30 | 5.25 × 1.78 × 2.2 |
Why the final numbers vary
Power, speed, cutter size, chamber dimensions and throughput should be matched to the material, feed size, target reduction and operating duty. Values shown with ×2 in the reference chart indicate two drive sets in that supplied chart; verify exact motor count and drive arrangement before quotation.
KNIVES, SHAFTS & WEAR PARTS
The Cutter and Wear-Part System Behind the Shredder
Double-shaft performance depends on the relationship between cutter discs, claw knives, spacers, shafts and the cutting chamber.
Cutter Discs & Claw Knives
Cutting profiles and spacing determine how bulky material is gripped and engaged.
Dimensions to confirm
Shafts & Spacers
Shaft geometry, bore, keyway and spacer arrangement must match the cutter stack.
Drawing or sample match
Cutting Chamber Components
Chamber plates, counter elements and clearances support the working cutter set.
Machine-layout dependent
Drive-Side Components
Gearboxes, couplings and drive-side parts should be matched to the two-shaft arrangement.
Drive details to confirm
Before ordering a replacement partSend the machine model, shaft layout, cutter dimensions, spacer stack, bore/keyway details or clear photos of the existing part.SEND A DRAWING OR SAMPLE
DOWNSTREAM INTEGRATION
Prepare the Material for the Next Process
A double-shaft shredder is often one stage in a wider material-handling line. The downstream target helps define the required reduction and discharge arrangement.
01Primary reductionDouble-shaft shredder
→
02Material handlingConveyor or collection
→
03Next processScreening, sorting or secondary shredding
Conveying and collection
Discharge height, hopper layout and material flow should match the collection bin or conveyor.
Screening and separation
When a more controlled fraction is required, screening or separation may follow the primary reduction stage.
Secondary processing
Downstream granulation, sorting, packing or another shredder can determine the practical target from the first stage.
Line-planning question:What must the next machine receive after the double-shaft stage?
HOW TO CHOOSE
Choose the Right Double-Shaft Starting Point
The same double-shaft structure can be configured for different duties. Start with the feed and reduction target rather than a model number alone.
What is the material?
Identify the material, form, hardness, moisture, contamination and wrapping risk.
What is the largest feed piece?
Provide dimensions, bulk density and whether pre-cutting or controlled feeding is needed.
What reduction is required?
Describe the desired primary reduction and what the next process needs to receive.
How much must be processed?
Share hourly volume, operating hours, duty cycle and peak-load conditions.
What happens downstream?
Tell us about conveyors, sorting, secondary shredding, packing or other line equipment.
FAQ
Double-Shaft Shredder Questions
Practical answers for buyers comparing double-shaft equipment, cutter systems and replacement components.
What materials can a double-shaft shredder process?
Double-shaft machines are commonly considered for selected bulky plastic, wood, rubber, tires, cable and mixed industrial materials. The actual material, feed form and contamination must be reviewed before selection.
How does a double-shaft shredder work?
Two shafts rotate in opposite directions and use cutter discs or claw-style knives to grab, tear and compress material in the cutting chamber. Reduced material then leaves through the discharge arrangement.
What is the difference between a single-shaft and double-shaft shredder?
A single-shaft machine is often selected when controlled rotor cutting and a more defined screened output are needed. A double-shaft machine is often considered for bulky or difficult feedstock requiring high-torque primary reduction. The material and downstream goal decide the better fit.
Does a double-shaft shredder always produce a uniform particle size?
Not necessarily. Output form depends on cutter geometry, shaft speed, clearances, feed conditions and whether a screen or secondary process is used. Uniform sizing should be confirmed from the complete process requirement.
Does a double-shaft shredder always use a screen?
Screen use depends on the machine design and target reduction. Some primary-shredding duties focus on throughput and bulk reduction rather than a tightly controlled screened fraction.
What determines double-shaft throughput?
Material properties, largest feed piece, cutter set, shaft speed, drive torque, chamber size, operating duty and discharge conditions all affect throughput. A power number alone is not enough to predict capacity.
Can you supply double-shaft cutter discs, shafts or spacers?
These parts can be reviewed from a machine drawing, model, sample or clear photos. Cutter dimensions, shaft layout, spacer stack and drive-side details should be confirmed before production.
What information should I send for a double-shaft quotation?
Send material photos, the largest feed piece, target reduction, estimated throughput, operating hours, available power and any existing machine model, drawing or old-part photo.
Can a double-shaft shredder use one motor?
Yes. Some compact or medium-duty designs use one motor and synchronized transmission to drive both shafts. Heavy-duty models may use two independent motor-and-gearbox drives. Confirm the main drive arrangement for the selected model.
GET IN TOUCH
Need help choosing a double-shaft shredder?
Please prepare the information you already have. The inquiry form is on our Connect Us page.
Helpful information to send
- Material name and photos
- Largest feed piece and target reduction
- Estimated throughput and operating hours
- Existing machine model or layout if available