Plastic Crusher Machine
An industrial plastic crusher machine (also known as a plastic granulator) is high-speed rotary cutting equipment engineered to grind waste plastics—including PET bottles, HDPE containers, LDPE films, PP woven bags, and rigid PVC pipes—into uniform 8–26 mm plastic flakes. Equipped with high-hardness SKD-11 / 9CrSi alloy blades, customizable rotor configurations, and optional wet-crushing water inlets, our crushers deliver capacities from 100 to 2,500 kg/hour for standalone workshops and turnkey plastic recycling lines.
What materials suitable for plastic crushing machines?
Our plastic crushing machines serve both standalone scrap dealers and fully automated recycling plants:
Bottles & Rigid Containers: PET beverage bottles, HDPE milk jugs, shampoo bottles, PP buckets, and chemical drums.
Flexible Films & Bags: LDPE stretch film, agricultural mulch film, PP woven bags, and non-woven fabrics.
Pipes, Profiles & Industrial Scrap: Rigid PVC pipes, UPVC window frames, ABS electronic casings, PA/Nylon parts, and runner/sprue waste.
Seamless Line Connectivity: Functions as the core size-reduction unit inside our complete PET Bottle Washing Lines, PP/PE Film Pelletizing Lines, and PVC Pipe & Profile Recycling Lines.
Standard Industrial Plastic Crusher Specifications
| Modèle | Capacity (Rigid / Film) | Motor Power | Feed Inlet Size (mm) | Rotating Blades | Fixed Blades | Screen Mesh Size |
| SL-400 | 100 – 300 kg/h | 7.5 – 11 kW | 400 × 260 | 6 / 9 pcs | 2 pcs | 8 – 26 mm |
| SL-600 | 300 – 500 kg/h | 15 – 22 kW | 600 × 350 | 9 / 15 pcs | 2 – 4 pcs | 8 – 26 mm |
| SL-800 | 500 – 1,000 kg/h | 30 – 37 kW | 800 × 520 | 15 / 18 pcs | 4 pcs | 10 – 30 mm |
| SL-1000 | 1,000 – 1,500 kg/h | 45 – 55 kW | 1000 × 650 | 18 / 24 pcs | 4 pcs | 12 – 40 mm |
| SL-1200 | 1,500 – 2,500 kg/h | 75 – 90 kW | 1200 × 800 | 24 / 30 pcs | 4 – 6 pcs | 14 – 50 mm |
Shuliy Plastic Crusher Machine Three Specialized Rotor Designs for Rigid & Soft Plastics
Different plastic polymers require distinct shearing geometries to prevent material jamming, overheating, or excessive fines. We configure every plastic granulator with one of three specialized rotor assemblies tailored to your exact feedstock:
1.Claw-Type Rotor ( For Rigid & Thick-Wall Plastics):
Distributes cutting force across staggered claw blades, delivering superior biting power for thick-walled HDPE drums, injection molding sprues, ABS housings, and heavy plastic lumps.
2.Flat / Paddle-Type Rotor ( For Hollow Containers & Sheets):
Features wide, straight cutting edges ideal for high-throughput granulation of blow-molded bottles, plastic crates, thermoformed sheets, and thin-wall profiles.
3.V-Type / Flake Rotor (For Films, Woven Bags & PET Bottles):
Guides flexible materials toward the center of the cutting chamber during rotation, preventing film wrapping around the shaft and maximizing output for LDPE agricultural films, PP jumbo bags, and PET water bottles.
Shuliy Plastic Crusher Machine-Engineered for High Throughput, Low Noise & Easy Maintenance
1.High-Wear SKD-11 & 9CrSi Alloy Blades: Precision-machined and vacuum heat-treated for maximum edge retention. Adjustable blade gaps allow repeated resharpening, extending service life and cutting spare-part costs.
2.Wet Crushing Option: Integrated top water-spray inlets allow continuous water injection during granulation—cooling the cutting chamber to prevent PE film melting while pre-washing dirt and labels off PET flakes.
3.Hydraulic / Screw-Assisted Hopper Opening: Medium and heavy-duty models feature hydraulic cylinders or screw jacks that open the upper feeding hopper and lower screen cradle effortlessly for fast blade changes and cleaning.
4.Double-Layer Soundproof Chamber & Heavy Flywheel: Thickened steel plate construction (with optional sound-insulating acoustic lining) minimizes workshop noise, while large dual flywheels stabilize rotational inertia under peak shock loads.
5.Customizable Discharge & Conveying: Easily paired with screw loaders, pneumatic cyclone blowers (essential for lightweight film flakes), or belt conveyors for seamless integration into washing and pelletizing lines.
More models of plastic crushers
Suitable for various types of raw materials; contact us for a customized solution.
Frequently Asked Questions About Plastic Crusher Machines
Q1: What is the difference between a Plastic Crusher (Granulator) and a Plastic Shredder?
A: A plastic crusher (granulator) operates at high rotational speeds (450–600 RPM) with sharp, scissor-like blades and a bottom sizing screen to cut medium-sized plastics into uniform 8–26 mm flakes. A plastic shredder runs at low speed (15–30 RPM) with extremely high torque to tear bulky, thick-walled items (such as compressed bales, blue drums, or thick pipes) into rough chunks before crushing.
Q2: Why is “Wet Crushing” recommended for PE films and PET bottles?
A: During high-speed granulation, friction generates heat that can soften low-melting-point plastics like LDPE film, causing them to stick to the rotor and clog the screen. Injecting water into the crushing chamber cools the blades, lubricates the cut, eliminates static dust, and removes surface sand or paper labels simultaneously.
Q3: How do I choose the right screen mesh size for my application?
A: Screen hole diameter determines final flake size. For rigid plastics heading into washing or direct extrusion, 10–14 mm screens are standard. For soft PE films and woven bags, we recommend larger 25–40 mm screens paired with a pneumatic blower to ensure rapid discharge without blockage.
Q4: How often do the crusher blades need sharpening or replacement?
A: For clean post-industrial scrap, SKD-11 / 9CrSi blades typically run for 300 to 500 operating hours before requiring light resharpening. For dirty post-consumer agricultural films or bottles containing sand, we recommend sharpening every 100 to 150 hours and keeping one spare blade set on hand for zero-downtime swaps.