Double Shaft Shredder with Hydraulic Ram for Tires, Rubber & Bulky Plastics
Powered by dual-motor planetary drives (~18–25 RPM) and an overhead hydraulic ram, this heavy-duty shearing system eliminates material floating and rotor slipping on resilient tires, elastic rubber scrap, hollow drums, and dense plastic waste.
- Forced Hydraulic Ram Feeding: Overcomes material bouncing and slippage on tires, hollow drums, and elastic scrap.
- Extreme-Torque Planetary Drivetrain: Low-speed (~18–25 RPM) dual drive delivers immense shearing force with low dust and minimal noise.
- Tailored Industrial Engineering: Configurable 1200 mm chamber, H13 alloy tool steel cutters, and automated PLC auto-reverse protection.
1200 Heavy-Duty Shredder: Forced Shearing for Resilient Scrap
Why Elastic & Hollow Scrap Demands Hydraulic Ram Technology
High-resilience materials — such as automotive tires, cured rubber scrap, silicone, TPE/EVA, and hollow 200L chemical drums — present a common challenge in recycling plants: their elasticity and lightweight bulk cause them to float and bounce on top of rotating cutters rather than being drawn into the cutting zone.
The Rumtoo 1200 heavy-duty shredder solves this challenge with an integrated overhead hydraulic ram forced-feeding system. Mounted directly above the deep-well feed hopper, the articulated ram presses voluminous and bouncy scrap downward into the counter-rotating hooked cutters. Driven by dual planetary reducers operating at a deliberate ~18–25 RPM, the system achieves positive, aggressive biting and consistent throughput without operator batching or rotor slippage.
1200 Double Shaft Shredder with Hydraulic Ram in Action: Video
Watch forced shearing of resilient tires, elastic rubber scrap, and hollow chemical containers without material floating.
Double Shaft with Hydraulic Ram vs. Conventional Size-Reduction Equipment
Choosing the right size-reduction machine depends directly on material elasticity, bulk volume, and feeding behavior.
| Feature / Requirement | Double Shaft with Ram This System (Forced Feeding) | Standard Double Shaft Gravity Feeding Only |
|---|---|---|
| Primary Target Materials | Resilient tires, rubber bales, silicone, TPE/EVA, 200L drums, IBC totes, thick purgings | Light general plastics, e-waste, crates, pallet wood, thin-walled hollow scrap |
| Feeding & Biting Action | Overhead hydraulic ram forcefully presses scrap into rotating cutters | Relies solely on gravity and cutter hook grip |
| Material Slipping & Floating | Zero floating or slipping: Ram forces positive, continuous cutter bite | Frequent floating and rotor slipping on elastic, bulky, or hollow scrap |
| Hourly Throughput Efficiency | 30%+ higher throughput on bouncy, bulky, or lightweight hollow containers | Reduced intake speed; requires manual pre-cutting or operator intervention |
| Rotational Speed & Torque | Low Speed (~18–25 RPM) with extreme planetary shear torque | Low Speed (~20–30 RPM) with standard drive torque |
| Dust, Heat & Operating Noise | Minimal dust, low noise (<85 dB), zero thermal degradation of polymers | Low dust, moderate noise, standard wear rate |
| Drivetrain Overload Protection | Smart PLC auto-reverse with flexible coupling shock buffer protection | Standard electrical overload circuit trip |
Core Engineering & Structural Advantages
Built with heavy-duty alloy components and dual planetary drives to withstand high-impact loads in continuous operation.
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Overhead Hydraulic Ram Forced Feeding
An articulated hydraulic pusher mounted inside the hopper forces bulky scrap, hollow barrels, and elastic rubber bales down into the cutters, eliminating material floating and boosting feeding efficiency by over 30%.
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Dual Planetary Drives (~18–25 RPM)
Powered by dual motors (75–110 kW class) coupled to heavy-duty planetary gearboxes. Low rotational speed produces immense shear torque, effortlessly ripping through steel-belted tires and tough polymers without overheating.
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High-Toughness H13 Alloy Tool Steel Blades
Precision-machined hooked cutters forged from premium hot-work alloy tool steel (H13 / D2). Vacuum heat-treated for outstanding impact toughness and edge retention under abrasive tire cord and scrap contact.
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CNC Solid Hexagonal Rotor Shafts
Cutters are mounted on solid hexagonal shafts machined from forged alloy steel. The hexagonal geometry eliminates traditional keyway stress points, ensuring absolute torsional strength under sudden shock reversals.
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Outboard Sealed Heavy-Duty Bearings
Heavy-duty spherical roller bearings are mounted in external housings isolated from the cutting chamber. Multi-labyrinth seals prevent moisture, rubber dust, and chemical residues from contaminating bearing grease.
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Intelligent PLC Auto-Reverse Logic
Automated PLC control continuously monitors drive motor amperage. When encountering uncrushable foreign objects or extreme overload, shafts automatically reverse to clear the jam and reposition scrap before resuming forward shredding.
Key Technical Specifications (Tailored Engineering)
The following specifications outline standard 1200-series configurations. Final chamber dimensions, blade profiles, motor ratings, and ram force are customized to your target scrap material and plant throughput.
| Key Specification | 1200 Heavy-Duty Series (Standard & Custom Options) |
|---|---|
| Model / Capacity Series | 1200 Heavy-Duty Shredder Series (Custom sizes from 800 mm to 1600 mm available) |
| Cutting Chamber Width | ~1200 mm class (Standard nominal throat: 970 mm × 1200 mm) |
| Drive Power Configuration | Dual-Motor Drive: 75 kW – 110 kW (Standard 2 × 45 kW high-efficiency motors) |
| Gearbox Transmission | Dual Heavy-Duty Planetary Reducers (High-Torque Output) |
| Rotor Rotary Speed | ~18 – 25 RPM (Low-speed, extreme break-out shear torque) |
| Rotary Cutter Diameter | Φ450 mm – Φ500 mm (Multi-hook shear geometry) |
| Cutter Metallurgy | H13 / Cr12MoV vacuum heat-treated alloy tool steel (high impact toughness) |
| Auxiliary Feeding System | Overhead Hydraulic Ram / Forced Pusher (Integrated with feed hopper) |
| Reference Throughput | 1,000 – 3,000 kg/h (Material density and target fraction dependent) |
| Automation & Protection | Intelligent PLC control with real-time amperage sensing and auto-reverse logic |
Tailored Engineering & Custom Configurations: Because scrap resilience, incoming dimensions, feeding method (conveyor, grab, or forklift), and target fraction size vary widely between recycling lines, Rumtoo custom-configures blade profiles, motor ratings, and ram stroke to your exact processing targets. Contact our engineering team for an equipment layout and proposal.
Proven Feedstock & Application Scope
High-torque primary size reduction across resilient rubbers, bulky hollow containers, and dense polymers.
Passenger & Commercial Vehicle Tires
Pre-shreds whole car tires, truck tire treads, sidewalls, and bead wire scrap into manageable shreds for secondary granulation and crumb rubber production lines.
Industrial Rubber Scrap & Bales
Tears through dense synthetic rubber bales, vulcanized conveyor belts, automotive weatherstripping, and rubber moulding runners without rotor stall.
Silicone, TPE & EVA Foam Waste
Overcomes the extreme elasticity of silicone waste, footwear EVA foam blocks, and TPE scrap that bounce away from conventional high-speed blades.
Hollow 200L Plastic Drums & IBC Totes
Overhead hydraulic ram crushes and forces bulky blow-molded chemical drums, IBC containers, and large plastic barrels directly into the cutter shafts.
Dense Injection & Extrusion Purgings
Handles thick plastic purgings, pipe cut-offs, thick-walled sheets, and heavy polymer lumps that cause ordinary crushers to jam or trip overload circuits.
Baled Film & Woven Bags
Pre-shreds tightly baled agricultural film, stretch wrap, PP woven big bags, and raffia bales into loose fragments for downstream washing lines.
Frequently Asked Questions
Clear answers to common questions about heavy-duty double shaft shredders, hydraulic ram feeding, and size-reduction integration.
Elastic materials (tires, rubber bales, silicone, TPE/EVA) and large hollow containers (200L drums, IBC totes) have high resilience and low bulk friction. In standard dual-shaft shredders, they frequently float or bounce on top of counter-rotating cutters instead of being pulled in. The overhead hydraulic ram applies controlled downward pressure, forcing bulky and resilient scrap directly into the cutting zone for immediate, continuous biting without rotor slippage.
Unlike high-speed crushers that create excessive dust, heat, and material rebound, our double shaft shredder operates at a low speed of approximately 18–25 RPM powered by dual motors and high-torque planetary reducers. This delivers immense break-out shearing force to slice through tough rubber, tire treads, and thick-walled plastic purgings smoothly with minimal noise, low dust, and high mechanical longevity.
The shredder is equipped with an intelligent PLC automation control system that monitors motor load in real time. If an uncrushable object causes an amperage spike, the shafts instantly auto-reverse to dislodge the obstruction, protect the gearbox and cutters from shock damage, and reposition the feedstock before resuming forward shredding.
Yes. Every Rumtoo heavy-duty shredder is engineered to order. Chamber length, cutter thickness (20–50 mm), hook profile, blade metallurgy (H13 or D2 alloy tool steel), motor drive power (75 kW – 110 kW), and hydraulic ram force are tailored to match your incoming feedstock specifications, feeding method, and downstream processing requirements.
Quality Warranty & Global Commissioning Support
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12-Month Quality Warranty
Comprehensive mechanical and electrical coverage on drive systems, planetary gearboxes, hydraulic units, and electrical controls with long-term factory technical backing.
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On-Site Commissioning & Engineer Dispatch
Experienced overseas service engineers available for on-site mechanical installation, electrical connection, operational startup, and plant operator training worldwide.
Request a Tailored Shredder Proposal
Tell us your scrap material type (tires, rubber, drums, purgings), incoming dimensions, and required hourly throughput. Our engineering team will configure the right chamber, blade profile, and hydraulic ram setup for your line.
