Heavy-Duty Dual Shaft Shredder

 

The Heavy-Duty Dual Shaft Shredder is an industrial-grade heavy-duty crushing equipment specifically designed to process high-hardness, large-volume, and high-strength metal scrap. As an upgraded and reinforced version of traditional metal crushers, it employs a low-speed, high-torque dual-shaft shearing mechanism to tear, shear, and compress metal materials rather than relying on impact crushing. It is particularly suitable for processing metal components containing ductile materials or irregular structures.

 

 

 

Model	Blade diameter	Spindle diameter	Gear reducer model	Power	Dimensions
W-CR800	Ф 400mm	Ф 180mm	ZQ650	30kw*2	3600*1700*2200mm
W-CR1000	Ф 400mm	Ф 180mm	ZQ750	37kw*2	3900*1800*2200mm
W-CR1200	Ф 400mm	Ф 180mm	ZQ750	45kw*2	4100*1800*2300mm
W-CR1400	Ф 500mm	Ф 260mm	ZQ850	55kw*2	4700*2100*2400mm
W-CR1600	Ф 500mm	Ф 260mm	ZQ1000	75kw*2	5400*2400*2600mm
W-CR1800	Ф 600mm	Ф 280mm	ZSY500	90kw*2	5600*2400*2800mm

 

 

Heavy scrap steel: Car bodies, bumpers, frames, discarded household appliances (refrigerators, washing machines)

Industrial metal scrap: Steel coil scraps, I-beams, H-beams, I-slabs (sizes up to 200-400mm)

Non-ferrous metals: Aluminum profiles, copper cable coils, aluminum alloy wheels

Mixed metal products: Oil drums, chemical drums, pallet racks, container parts

Special materials: Waste tires (with steel wire), scrapped motorcycles, bicycles

 

 

1.Powerful Power System
Motor Configuration: Dual motors typically range from 2×30kW to 2×200kW.
Drive Method: Direct drive of motor and heavy-duty hardened gear reducer, transmission efficiency >96%.
Torque Output: Single-shaft torque up to 50,000-200,000 Nm, low-speed high-torque design (10-25 RPM).
 

2.Heavy-Duty Tool Shaft and Inserts
Tool Shaft Structure:

• Material: Forged 42CrMo/34CrNiMo6 alloy steel
• Diameter: Φ300-600mm
• Heat Treatment: Quenched and tempered HB280-320, surface high-frequency hardened HRC55-60

Support: 4-6 rows of heavy-duty self-aligning roller bearings (with hydraulic release ring)
Insert Design:

• Material: D2, DC53, H13 die steel or custom alloy steel
• Hardness: HRC58-62
• Structure: Detachable tool holder design, single insert weight up to 30-100kg
• Arrangement: Helical staggered arrangement, shearing angle 20-30°

 

 

3.Reinforced Housing and Frame

Housing: Welded from Q345B steel plate, 25-50mm thick, with wear-resistant plates (Hardox 400/500) welded to key areas

Spindle Support: Integral bearing housing with hydraulic preload device

Vibration Damping Design: Rubber damping pads or hydraulic dampers installed between the housing and foundation

 

 

4.Heavy-Duty Dual Shaft Shredder Intelligent Control System

Dual Motor Synchronous Control: Employs servo-level synchronous control algorithm to ensure angular displacement error between the two shafts <0.5°

Load Monitoring: Real-time monitoring of power, current, and torque of both motors, automatically adjusting feed speed

Protection System:

• Automatic Overload Reversal (with intelligent judgment to prevent continuous jamming)
• Temperature Monitoring (Multi-point temperature measurement of bearings, motors, and reducers)
• Hydraulic Overload Protection (Optional)

 

 

 

Pre-compression feeding (optional)
A hydraulic pusher pushes the material towards the cutter shaft.
Pressure can reach 50-150 tons, ensuring stable entry of large metal pieces.
Grabbing and tearing
Low-speed rotating blades grip the material.
Powerful shearing force is generated at the intersection of the two shafts.
Multi-action crushing
Shearing: The blades directly cut the metal.
Tearing: The metal is torn apart using plastic deformation.
Compression: The metal structure is crushed at the minimum gap between the two shafts (typically 10-30mm).
Output control
Output size is controlled by a bottom screen (typically 30-100mm).
A screenless design produces irregular strip/block-shaped material.

 

 

 

Heavy-Duty Dual Shaft Shredder Selection Steps:
1. Material Analysis:

• Material (Carbon steel, stainless steel, aluminum alloy)
• Thickness (Maximum/Average)
• Shape (Plate, Tube, Irregular)
• Inclusions (Plastic, Rubber, Other)

2. Production Requirements:

• Annual Processing Capacity (tons/year)
• Working Schedule (hours/day, days/year)
• Peak Processing Requirements

3. Output Requirements:

• Target Size
• Whether Sorting is Required
• Subsequent Processes (Packaging, Melting, etc.)

4. Site Constraints:

• Installation Space
• Power Capacity (starting current must be considered)
• Foundation Requirements (dynamic load 5-8t/m²)

 

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