Heavy Duty Shear Type Shredder for Industrial Waste Management
The RTM double shaft shredder series is engineered for high-torque size reduction across plastics, metals, rubber, wood, appliances, and mixed industrial waste streams.
- High-torque dual-shaft shear cutting for dense and bulky materials.
- Customizable knife stacks and motor configurations for different waste streams.
- PLC-based overload control for more stable operation and easier maintenance planning.
What is a Dual-Shaft Shear Shredder (Industrial Rotary Shear)?
In industrial recycling engineering, our double shaft shredder operates under the mechanical principle of a dual-shaft shear shredder (industrial rotary shear). Unlike high-speed granulators, this equipment operates with two counter-rotating hexagonal shafts at low speed (15–30 RPM) and ultra-high torque. The interlocking hooked cutter discs grab, tear, and apply extreme shear cutting force, allowing processing of massive, ductile, or highly abrasive materials without jamming and with low noise and dust.
Shearing Performance by Material Type and Knife Configuration
| Feedstock Material | Knife Thickness & Alloy Steel | Output Size | Throughput Capacity |
|---|---|---|---|
| End-of-Life Tires (Passenger & Commercial Truck ELT) | 50 – 75 mm Hard-faced alloy steel D2 / SKD11 |
50 – 150 mm TDF chips | 1,500 – 10,000 kg/h |
| Light Scrap Metal, Steel Drums & Aluminum Extrusions | 40 – 60 mm Hot-work alloy steel H13 / 55SiCr |
40 – 100 mm shredded fragments | 1,000 – 8,000 kg/h |
| Rigid Plastics (HDPE Drums, IBC Totes, Purge Blocks, Thick Pipes) | 20 – 40 mm High-tensile tool steel SKD11 / Cr12MoV |
30 – 80 mm uniform chunks | 800 – 6,000 kg/h |
| Bulky Industrial Waste (E-Waste / WEEE, Wooden Pallets, Baled Textiles) | 20 – 50 mm Interchangeable multi-claw knives |
80% volume reduction (40 – 120 mm) | 1,000 – 7,000 kg/h |
Split Cutting Chamber & Modular Blades
CNC-machined hexagonal shafts with independent blade carriers. Enables rapid blade replacement or resharpening without full disassembly of the main rotor shaft.
Planetary Gear Drive & PLC Auto-Reverse
Equipped with heavy-duty planetary gearboxes and Siemens/Schneider PLC controls. Upon encountering solid metal overload, the shafts automatically reverse to clear blockages and protect the drivetrain.
Outboard Sealed Bearing Protection
Bearing housings are isolated outside the cutting chamber with multiple labyrinth seals, completely preventing ingress of abrasive dust, residual liquids, or molten plastics.
Double Shaft Shredder Specifications
Standard RTM double shaft shredder configurations for industrial waste reduction.
| Model | Shaft Diameter (mm) | Knife Quantity (pcs) | Capacity (kg/h) | Motor Power (kW) | Dimensions (L×W×H mm) |
|---|---|---|---|---|---|
| RTM-0600 | 320×45 | 12 | 800 | 18.5×2 | 2960×880×2300 |
| RTM-0800 | 320×45 | 16 | 1000 | 22×2 | 3160×920×2400 |
| RTM-10000 | 400×50 | 20 | 2000 | 45×2 | 3360×980×2500 |
| RTM-12000 | 400×50 | 24 | 3000 | 55×2 | 3760×980×2550 |
| RTM-16000 | 500×65 | 24 | 5000 | 75×2 | 4160×1080×2600 |
| RTM-20000 | 600×77 | 28 | 8000 | 90×2 | 4600×1220×2800 |
Swipe horizontally to view the full table.
Feedstock Materials & Processing Scope
Typical industrial waste streams processed by a shear-type dual-shaft shredder.
Metal Drums
Oil drums, steel containers, and other light industrial scrap requiring high torque.
Waste Tires
Passenger, truck, and mixed rubber tire streams for downstream granulation or recovery.
Wood Waste
Construction timber, pallets, and bulky wood scrap for pre-processing and volume reduction.
Double Shaft Shredder Overview
Efficiency Redefined
Built for Demanding Waste Streams
The RTM series uses two counter-rotating shafts with a shear-type knife stack to tear and cut dense or bulky feedstock into smaller pieces for downstream handling.
- Robust reducer sizing: supports high starting torque and sustained load.
- Modular blade stack: adapts knife geometry to plastics, rubber, metal, or mixed waste.
- PLC protections: helps manage overload, jamming, and controlled restart logic.
Key Features & Heavy-Duty Rotor Design
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Powertrain Design
Matched motor, reducer, and coupling selection supports stable torque delivery while reducing shock loads on the drivetrain.
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Knife Configuration
Modular knife thickness and profile options help balance throughput, wear rate, and target particle size across different materials.
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Controls & Protections
PLC integration supports overload response, interlocks, event logging, and more predictable operating conditions.
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Material Compatibility
Suitable for plastics, rubber, light metals, appliances, e-waste, biomass, and mixed industrial scrap streams.
Maintenance & Blade Replacement Support
Maintenance intervals depend on duty cycle and feedstock abrasiveness. Typical preventive work includes knife inspection and rotation planning, bearing lubrication, reducer and coupling checks, structural fastener inspection, and PLC alarm review.
Knife inspection, rotation, and replacement planning
Bearing, seal, and reducer checks according to the service chart
PLC alarm history review after overload or jam events
Frequently Asked Questions
For tires, rubber, silicone, TPE and other elastic materials, our dedicated rubber & tire shredder offers stronger gripping and tearing performance.
Warranty & Global Installation Support
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1-Year Limited Warranty
Coverage focuses on the machine frame, shafts, gearbox, and electrical control system under standard operating conditions.
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Installation & Remote Support
Commissioning, operator guidance, and remote troubleshooting support are available based on project scope.
Get a Double Shaft Shredder Quote
Send your feedstock type, target output size, and required hourly capacity. We will match the blade configuration and drive package to your project.