Low Speed Crusher

What Is a Low Speed Crusher vs High Speed Granulator? When selecting plastic recycling equipment for your injection molding or extrusion line, one of the most fundamental decisions is choosing between a low speed crusher (granulator) and a high speed granulator. Both machines reduce plastic scrap into reusable granules, but their operational principles, blade designs, and ideal applications differ significantly. How Low Speed Crushers Work Low speed crushers operate at blade rotation speeds of typically 150-450 RPM. They feature sturdy rotors with multiple blades, stationary bed knives, large feed openings for bulky items, and screening grids that control granule size. The slow rotation creates a tearing and crushing action rather than high-impact chopping, making them effective for thick-walled items like crates and containers. How High Speed Granulators Work High speed granulators operate at 400-1000+ RPM. They feature compact high-inertia rotors with many blades, close-tolerance cutting chambers for precise granule sizing, and smaller feed openings optimized for film, fiber, and light scrap. They excel at film and bag recycling, fiber scrap, and injection molding sprues. Key Differences Factor Low Speed Crusher High Speed Granulator Blade Speed 150-450 RPM 400-1000+ RPM Ideal For Thick parts, large scrap Film, sprues, fine granulation Dust Generation Lower Higher Energy Consumption Lower per kg Higher per kg How to Choose Choose Low Speed If: Thick-walled items (crates, pallets, IBC containers) Inline recycling next to injection molding machines Reducing dust is a priority Energy efficiency matters Choose High Speed If: Film, bags, and flexible materials Uniform granule size is critical High volumes of sprues and runners Fine granulation for downstream processes ZILLION Crusher Series ZILLION offers both low speed and high speed models. The ZL-PC series ranges from 2.2kW (120-150 kg/h) to 55kW (2000-2500 kg/h). For film and precision granulation, ZILLION high speed granulators deliver consistent sizing with minimal dust. Common Mistakes to Avoid Choosing based solely on price Ignoring granule size requirements Not considering material types Underestimating throughput needs Maintenance Tips Inspect blades regularly Check screening grids Lubricate bearings Clean the cutting chamber Conclusion For most injection molding operations with thick-walled parts and inline recycling needs, a low speed crusher like the ZILLION ZL-PC series delivers the best balance of efficiency, granule quality, and longevity. For film recycling and fine granulation, a high speed granulator is the better investment. Need help selecting the right crusher? Contact ZILLION technical team for a customized recommendation.

What Is a Low Speed Plastic Crusher? A low speed plastic crusher (also called a slow speed shredder) uses low RPM rotating blades to shred plastic materials into small particles or flakes. Unlike high-speed crushers that generate heat and noise, low speed crushers operate at 10-30 RPM, producing minimal dust, low noise, and minimal foreign matter contamination. Low speed crushers are designed for inline recycling -- crushing plastic materials directly on the production line without removing them from the facility. This makes them ideal for plastic recycling centers, injection molding plants, and extrusion lines. Low Speed vs. High Speed Plastic Crusher Feature Low Speed Crusher High Speed Crusher Rotor Speed 10-30 RPM 400-600 RPM Noise Level 75-85 dB 100-120 dB Heat Generation Minimal Significant Dust and Contamination Very Low Higher Particle Shape Uniform flakes Irregular granules Best For Inline recycling, clean materials General purpose crushing ZILLION Low Speed Crusher Series ZILLION offers two series of low speed crushers: ZL-MS Series: Compact low speed crushers for small-to-medium throughput (1.1-3.7kW, 15-50kg/h) AMG Series: Heavy duty low speed crushers for medium throughput (2.2-3.7kW, 50-200kg/h) ZL-MS Series Specifications Model Motor Power Capacity EXW Price (USD) ZL-MS01 1.1kW 15-20 kg/h $？,212 ZL-MS02 1.5kW 20-25 kg/h $？,512 ZL-MS03 2.2kW 25-30 kg/h $？,712 ZL-MS05 3.7kW 25-50 kg/h $？,912 AMG Series Specifications Model Motor Power Capacity EXW Price (USD) AMG-2000 2.2kW 50-100 kg/h $？,350 AMG-3000 2.2kW 70-150 kg/h $？,540 AMG-5000 3.7kW 100-200 kg/h $？,930 Key Applications 1. Inline Recycling on Production Lines Low speed crushers can be placed directly beside injection molding machines or extrusion lines to crush runner systems, sprues, and rejected parts immediately. The crushed material falls directly back into the production cycle, reducing material waste and transportation costs. 2. Bottle and Container Recycling PET bottles, HDPE containers, and other hollow plastic products are ideal for low speed crushing. The slow rotation prevents shattering and produces uniform flakes suitable for re-extrusion. 3. Film and Sheet Recycling Low speed crushing is gentler on plastic films and sheets, reducing fines generation and preserving material quality for recycling. 4. Electronic Waste Processing Low speed crushers are used to pre-shred electronic plastic components before fine grinding, reducing operator exposure to hazardous materials. How to Choose the Right Low Speed Crusher Step 1: Identify Your Material Type Different plastic materials have different crushing characteristics. Common materials include PET, HDPE, PP, ABS, and PVC. Each requires specific blade configurations and motor power. Step 2: Determine Throughput Requirements Calculate your required capacity based on production rate, percentage of waste material generated, and number of machines served. Step 3: Check Available Space and Power Low speed crushers require floo...