Le Broyeur de plastique is the first line of defense in any size-reduction system. Designed to handle bulky objects like drums, crates, and purge lumps, these machines reduce material volume by up to 80%, creating a manageable feedstock for secondary refinement. Unlike shredders which process at low speed/high torque, crushers operate at medium speeds (400-600 RPM) to deliver high-throughput shearing action.
At Rumtoo, we engineer crushers to withstand the shock loads of industrial recycling, bridging the gap between waste collection and pelletization.
1. Broyeurs de plastique robustes
Engineered for solid, thick-walled parts that would stall standard motors.
* Applications: Injection molding purging, thick HDPE lumps, and automotive bumpers.
* Conception: Features a massive solid-steel rotor and an external flywheel to store kinetic energy, smoothing out impact loads.
2. Concasseurs de tubes et de profilés
Standard hoppers cannot accept 6-meter pipes. Horizontal crushers solve this by allowing linear feeding.
* Mécanisme: A trough system automatically feeds the pipe into the cutting chamber. The rotor is designed to nip the pipe end progressively, preventing “kickback” and ensuring operator safety.
* Target Material: PVC conduits, HDPE gas pipes, and window profiles.
3. Sheet and Thermoform Crushers
Wide, flat materials like skeletal waste from thermoforming lines or extruded sheets require a specialized cutting geometry to prevent “wrapping” around the rotor.
* Caractéristiques: Wider feed openings (up to 2000mm) and a scissor-cut knife configuration to slice rather than chop.
4. Broyeurs de plastique humide
Integrated directly into washing lines, wet crushers perform size reduction and initial cleaning simultaneously.
* Processus: Water is sprayed into the cutting chamber. This friction-washes the material, cools the blades (extending life), and suppresses dust.
* Avantage: Crucial for PET bottle recycling, as it pre-washes the labels and caps before the material enters the friction washer.
Plastic Crusher vs. Granulator
While the terms are often used interchangeably, the engineering distinction is clear:
* Broyeur: Primary reduction. Output size 20mm–50mm. Focus on throughput and handling large bulk.
* Granulateur: Secondary refinement. Output size 6mm–12mm. Focus on uniform particle size for extruder feeding.
Selection Criteria for Buyers
When specifying a machine with Rumtoo engineers, three factors determine the model:
1. Feedstock Geometry: A crusher optimized for hollow bottles will fail if fed with solid purge lumps.
2. Taille de la chambre: The cutting chamber dimensions must accommodate the largest part without pre-cutting.
3. Blade Metallurgy: SKD-11 or D2 steel blades are standard for general plastics, but glass-filled nylon requires wear-resistant coatings to prevent rapid dulling.
Sélection du bon Broyeur de plastique ensures consistent throughput and protects expensive downstream components from shock damage.
