The Plastic Pulverizer (high-speed disc-type \/ turbo-type plastic micronizer) is specialized size-reduction equipment designed to mill thermoplastic pellets and pre-crushed regrind flakes into uniform, high-quality fine powder ranging from 20 to 120 mesh (approx. 125 \u03bcm to 850 \u03bcm). It plays an essential role in PVC pipe\/profile recycling, rotational molding (rotomolding), carpet backing, textile coating, and high-speed compounding applications where fine, consistent particle size and rapid thermal fusion are critical.<\/p>\n
Operating under high-velocity centrifugal and aerodynamic shear, the pulverizer features precision-balanced rotors, high-wear alloy steel grinding elements, integrated water cooling, and pneumatic negative-pressure conveying. To match the distinctive thermal and rheological properties of different polymer families, the equipment is engineered around two core milling configurations:<\/p>\n
Engineered predominantly for Rigid and Semi-Rigid PVC (pipes, window profiles, vinyl sheets, foam boards), ABS, PC, and general post-industrial regrinds. It employs a stationary grinding disc and a high-speed rotating disc fitted with interlocking radial serrated teeth. As material enters the central feed throat, centrifugal force accelerates the particles through progressively tightening tooth clearances. The high-frequency shear and attrition micronize rigid regrind into 20\u201340 mesh powder in a single pass. Both discs and housings incorporate internal water-cooling jackets to suppress friction heat and prevent polymer softening or thermal discoloration.<\/p>\n
Specially developed for heat-sensitive polyolefins, particularly Linear Low-Density Polyethylene (LLDPE), LDPE, HDPE, EVA, and PP used in rotational molding (rotomolding). Utilizing a high-speed multi-wing impeller spinning inside a circular serrated stator ring, the turbo rotor generates powerful aerodynamic micro-vortices and rapid impact forces. This fluid-energy milling action produces smooth, spherical particles with excellent dry-flow rates and high bulk density (critical for bubble-free rotomolding fusion) while maintaining lower chamber temperatures than traditional mechanical disc mills.<\/p>\n
Both disc and turbo pulverizer systems operate under continuous pneumatic negative pressure. Pulverized powder is immediately extracted from the milling chamber by an induced-draft blower, passed through an aerodynamic cyclone separator, and fed into an integrated rotary vibrating sifter (vibro-screen). Particles meeting the target mesh discharge continuously via an airtight rotary valve into big bags or silos, while coarse tailings are automatically routed via closed-loop pneumatic transfer back to the grinding throat for re-milling. A reverse pulse-jet baghouse filter captures all ultra-fine dust, ensuring 100% dust-free workplace emissions and total material recovery.<\/p>\n","protected":false},"excerpt":{"rendered":"
High-speed industrial plastic pulverizer (disc-type and turbo-type) for micronizing PVC regrind, LLDPE, HDPE, and engineering polymers into 20\u2013120 mesh powder for rotomolding, extrusion, and compounding.<\/p>\n","protected":false},"featured_media":0,"template":"","equipment_category":[40],"process_stage":[42],"material_family":[85,79,73,88,129],"material_form":[75],"production_problem":[116],"class_list":["post-246","equipment","type-equipment","status-publish","hentry","equipment_category-size-reduction","process_stage-raw-material-preparation","material_family-abs","material_family-pe","material_family-pp","material_family-pvc","material_family-resin","material_form-pellets","production_problem-off-spec-pellet-size-and-fines"],"_links":{"self":[{"href":"https:\/\/polypelletizer.com\/wp-json\/wp\/v2\/equipment\/246","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/polypelletizer.com\/wp-json\/wp\/v2\/equipment"}],"about":[{"href":"https:\/\/polypelletizer.com\/wp-json\/wp\/v2\/types\/equipment"}],"wp:attachment":[{"href":"https:\/\/polypelletizer.com\/wp-json\/wp\/v2\/media?parent=246"}],"wp:term":[{"taxonomy":"equipment_category","embeddable":true,"href":"https:\/\/polypelletizer.com\/wp-json\/wp\/v2\/equipment_category?post=246"},{"taxonomy":"process_stage","embeddable":true,"href":"https:\/\/polypelletizer.com\/wp-json\/wp\/v2\/process_stage?post=246"},{"taxonomy":"material_family","embeddable":true,"href":"https:\/\/polypelletizer.com\/wp-json\/wp\/v2\/material_family?post=246"},{"taxonomy":"material_form","embeddable":true,"href":"https:\/\/polypelletizer.com\/wp-json\/wp\/v2\/material_form?post=246"},{"taxonomy":"production_problem","embeddable":true,"href":"https:\/\/polypelletizer.com\/wp-json\/wp\/v2\/production_problem?post=246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}