I. Why Do Bulky, Rigid Plastics Require Specialized Shredding and Granulation Systems?
With the growth of sectors such as automotive manufacturing, home appliances, logistics containers, electronics, and industrial manufacturing, the consumption of rigid plastic products—including ABS, PS, PP, and PE—has steadily increased. Consequently, there is a continuous generation of large-scale plastic waste, including injection molding rejects, solid plastic blocks, and industrial offcuts.
These materials typically exhibit the following characteristics:
Large dimensions, making direct feeding into granulation systems difficult
Thick walls and high impact strength
Significant weight, placing high demands on equipment load capacity
Requirement for stable, high-throughput operation during continuous production
Need for uniform particle sizes to facilitate downstream washing, granulation, or direct reuse
Therefore, a stable and efficient solution combining dual-shaft shredding with heavy-duty granulation is essential for plastic recycling lines to boost productivity and reduce operating costs.
II. ACERETECH Shredding and Crushing Solution for Bulky, Rigid ABS, PS, PP, and PE Scrap
To meet the demands of large-scale rigid plastic recycling, ACERETECH introduces a system combining dual-shaft shredding with the GH700/1400 heavy-duty crusher, delivering a processing capacity of 1500 kg/h. System Overview:
Large-scale waste → Dual-shaft shredding → Heavy-duty granulating → Uniform granule output
Suitable for downstream processes:
Plastic washing lines
Plastic pelletizing lines
Compounding/Modification
Injection molding recycling
Recycled plastic processing
Applicable Materials
This solution is suitable for various large, rigid plastics, including:
ABS blocks
ABS injection molding rejects
PS plastic waste
PP blocks
Thick-walled PE products
Large plastic containers/housings
Industrial offcuts
Plastic sheets/boards
Plastic profiles
Plastic pipes
Large rigid lumps
Widely applicable in:
Injection molding plants
Automotive parts manufacturing
Home appliance manufacturing
Plastic product factories
Plastic recycling enterprises
Industrial solid waste resource recovery centers
III. Process Flow
Feeding → Metal detection → Dual-shaft shredding → Material conveying → GH heavy-duty crushing → Roots blower conveying → Downstream washing or pelletizing
Through a two-stage volume reduction process, large material chunks are progressively processed into uniformly sized plastic fragments, enhancing downstream production efficiency.
IV. Dual-Shaft Shredding System – Efficient Processing of Large Rigid Plastics
As the first stage of the production line, the dual-shaft shredder easily handles various large, hard, and bulky waste materials.
Key Specifications
Processing capacity: 1500 kg/h
Motor power: 37 kW × 2
AC 440V, 3-phase, 60Hz
Rotor diameter: 500 mm
Rotor length: 1530 mm
Rotational speed: 11.6–12.9 rpm
Inlet dimensions: 1530 × 940 mm
Core Advantages
Large-size inlet
The 1530×940 mm inlet allows for the direct processing of large plastic waste, reducing the need for manual pre-cutting.
Hydraulic ram system
Automatic ram feeding ensures continuous material entry into the shredding zone, maintaining stable output even with large-volume rigid plastics.
Premium motors and heavy-duty gearboxes
Deliver consistent, high-torque output suitable for long-term, continuous operation.
Intelligent PLC control
Automatically monitors equipment operating status, boosts production efficiency, and minimizes the need for manual intervention. Multiple Safety Protections
The system is equipped with:
Metal-detecting belt conveyor
Emergency stop device
These features effectively protect the cutting tools and drive system, minimizing unplanned downtime.
V. GH700/1400 Heavy-Duty Crusher – Delivering Uniform Granule Output
Pre-shredded material enters the GH700/1400 heavy-duty crusher for secondary size reduction.
Equipment Specifications
Rotor diameter: 700 mm
Rotor width: 1400 mm
Cutting chamber dimensions: 1150 × 815 mm
Screen aperture: 12 mm
The system is also equipped with:
Metal-detecting conveyor
Heavy-duty hydraulic ram feeder
Intelligent control system
Dust extraction unit
Roots blower conveying system
Emergency stop device
Key Advantages of the GH Series Heavy-Duty Crusher
All-steel welded structure
The machine body features a high-strength, all-steel welded design, meeting the demands of long-term, heavy-load production.
V-rotor design
The cutting tools are arranged in a V-pattern, achieving:
Higher cutting efficiency
Lower energy consumption
Reduced dust generation
More uniform granule size
Large-sized rotor bearings
Enhances equipment stability and supports continuous, high-load operation.
Removable third stator blade
By adding a material-guiding wedge (third stator blade), the machine can process a wider variety of plastic waste while further increasing throughput.
Wear-resistant liner design
The interior of the cutting chamber is fitted with wear-resistant liners, effectively extending the equipment's service life.
External bearing structure
Bearings are mounted outside the cutting chamber, effectively preventing dust and impurities from entering the bearings; this improves reliability and reduces maintenance costs.
Optimized cutting geometry for higher production efficiency
The GH series utilizes an optimized cutting system:
V-shaped tool arrangement for improved cutting efficiency
Optimized rotor and cutting chamber geometry for high throughput and low energy consumption
Optimized tool mounting for heavy-load operation
Precise control of cutting clearance for consistent granule quality
Reduced operating noise
The result is more uniform plastic granules with minimal dust content.
VI. Why choose a dual-shaft shredder combined with a GH heavy-duty crusher?
Compared to using a single crusher, the two-stage processing solution offers distinct advantages:
✔ Capable of processing large lumps directly, eliminating the need for extensive manual pre-cutting
✔ Reduces the load on individual machines, enhancing the stability of the entire line
✔ Increases overall processing capacity, consistently achieving 1,500 kg/h
✔ Produces more uniform output granules
✔ Reduces blade wear and extends service life
✔ Provides ideal feedstock for downstream washing and pelletizing processes
Widely used in the plastics recycling industry, this solution delivers stable and efficient front-end size reduction for both post-industrial and post-consumer plastic recycling applications.
VII. Why Choose ACERETECH?
ACERETECH specializes in the R&D and manufacturing of plastic recycling equipment, offering customers complete line solutions ranging from front-end size reduction to washing, pelletizing, and recycling.
Our strengths include:
Extensive experience with large-scale plastic recycling projects
Customized line design
Intelligent PLC control systems
High-quality core components from renowned brands
Global installation, commissioning, and after-sales service
Professional technical support and process optimization
We are committed to helping customers improve recycling efficiency, reduce operating costs, and achieve high-value circular utilization of plastic resources.
Related Articles
Rigid Plastic Pelletizing Solutions
Rigid Plastic Washing Solutions
FAQ
Q1. Which plastics are suitable for the dual-shaft shredding + GH heavy-duty crushing solution?
A: This system is suitable for large rigid plastics such as ABS, PS, PP, and PE, as well as materials requiring size reduction, including injection molding waste, thick-walled products, plastic sheets, profiles, pipes, large plastic lumps, and industrial offcuts.
Q2. Why is a two-stage process typically used for large rigid plastics instead of using a crusher directly?
A: Large lumps are bulky and create high impact forces; feeding them directly into a crusher can increase equipment load and accelerate blade wear. Pre-processing with a dual-shaft shredder followed by a heavy-duty granulator improves processing efficiency, reduces energy consumption, and extends equipment service life.
Q3. What are the advantages of the GH series heavy-duty crusher?
A: The GH series features an all-steel welded structure, a V-rotor, large-sized bearings, wear-resistant liners, and an external bearing design. These features not only provide superior cutting capability but also effectively minimize dust and noise while producing more uniform granulate particles.
Q4. What is the processing capacity of this system? Can it be customized?
A: The processing capacity of the system in this case is approximately 1,500 kg/h. ACERETECH offers customized solutions—including dual-shaft shredders, GH heavy-duty crushers, and complete plastic recycling lines—tailored to specific material types, sizes, and customer capacity requirements.
Q5. Can the shredded and crushed material proceed directly to the next stage?
A: Yes. After dual-shaft shredding and GH heavy-duty crushing, the material particles are uniform in size and can be fed directly into washing, pelletizing, or modification extrusion lines, thereby enhancing the stability and efficiency of subsequent processes.