Equipment
High-speed industrial plastic pulverizer (disc-type and turbo-type) for micronizing PVC regrind, LLDPE, HDPE, and engineering polymers into 20–120 mesh powder for rotomolding, extrusion, and compounding.
Reference values for the model or models named above. The confirmed configuration, the capacity basis and the scope of supply are stated in the quotation and the drawings.
Overview
Micronizes plastic pellets and regrind flakes into high-quality fine powder (20 to 120 mesh) for PVC compounding, rotomolding, and coating processes.
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 μm to 850 μm). 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.
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:
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 20–40 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.
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.
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.
Key features
Each picture names one part of the machine and what it does for the material and the batch.
Precision CNC-machined dynamic and stationary grinding discs fabricated from premium vacuum heat-treated alloy steel (Cr12MoV / D2 / SKD-11, 58–62 HRC). Interlocking serrated tooth profiles shear and grind plastic pellets into ultra-fine powder in a single high-speed pass.
High-velocity dynamic rotor equipped with multiple aerodynamic impact blades spinning inside a circular serrated stator liner. Creates intense micro-vortex shearing forces that pulverize LLDPE/HDPE into smooth, spherical powder with outstanding dry-flow properties for rotomolding.
Dual-jacket water cooling wraps the entire stationary disc housing and bearing pedestals, continuously circulating chilled water to dissipate frictional heat. Prevents polymer melting, thermal degradation, and internal disc agglomeration.
Precision exterior micrometer adjustment bolts allow fine tuning of the cutting gap between rotary and stationary discs down to fractional millimeters without dismantling the grinding chamber, ensuring precise output particle distribution.
High-performance pneumatic fan continuously evacuates pulverized powder from the milling chamber through ductwork into an aerodynamic cyclone separator and high-frequency rotary vibrating screen, isolating oversized tailings for automatic closed-loop regrinding.
Smart PLC control panel monitors main motor load current, bearing temperatures, and milling chamber temperature in real time. Automatically modulates the variable-speed vibratory/screw feeder to prevent motor overload, thermal jamming, or disc burn.
Material and process
Read the conditions together: a machine is selected for the material and the output, not from its name alone.
Engineered for high-efficiency, continuous pulverizing and micronizing of thermoplastic polymers into uniform powders ranging from 20 mesh to 120 mesh (approximately 125 μm to 850 μm).
Specifically optimized for two primary industrial applications across the plastics processing and recycling industries:
High-speed precision micronizing mill; operational boundaries include:
Accepts clean, dry rigid or semi-rigid thermoplastic polymers and pre-processed regrinds, including:
Discharges uniform, free-flowing dry plastic powder with calibrated particle distribution:
Throughput
Read a figure together with the basis below it: the same machine reaches different numbers on different materials.
0.1–1.2 Ton/Hour
Pulverizing throughput typically spans from 100 kg/h up to 800+ kg/h depending on grinding rotor diameter (400 mm to 800 mm), installed drive power (37 kW to 90+ kW), polymer rheology, and target discharge mesh fineness.
Capacity is determined by polymer hardness, thermal softening point, and screen mesh size. Hard, rigid PVC profile regrind (producing 20–30 mesh) processes at high throughput rates, whereas low-density polyethylenes (LLDPE/LDPE producing 35–50 mesh for rotomolding) require continuous chilled water cooling, controlled feed rates, and higher specific energy to prevent thermal agglomeration.
Models
The figures are the reference values entered for each model. The model for your line is confirmed against your material and output before it is quoted.
Scroll the table sideways to read every column →
| Model | Capacity range | Rated power | Shaft rotate speed | Feeding material size | Final material size |
|---|---|---|---|---|---|
| NC-MF30 | 0.1-0.2 Ton/Hour | 40 kW | 3800 r/min | < 10 mm | 80-320 mesh |
| NC-MF60 | 0.2-0.5 Ton/Hour | 75 kW | 3200 r/min | < 12 mm | 80-320 mesh |
| NC-MF80 | 0.5-0.8 Ton/Hour | 95 kW | 2800 r/min | < 12 mm | 80-320 mesh |
| NC-MF1000 | 0.8-1.2 Ton/Hour | 135 kW | 2000 r/min | < 12 mm | 80-320 mesh |
Scope of supply
The quotation states the scope for the confirmed configuration; the groups below describe how a supply is normally split.
Installation planning
These are the connections the machine and the line around it have to agree on before the layout is fixed.
Mechanical: Rigid steel base mounted on anti-vibration rubber pads on a level concrete floor; cyclone bottom flange connected to rotary airlock valve and vibro-screen infeed chute; pneumatic ducting clamped with quick-release airtight couplings.
Electrical & Automation: Three-phase industrial power supply brought to the main control console; interlocking auxiliary signals between main mill motor, induced draft blower, vibro-screen, and variable-speed feeder.
Cooling Water & Pneumatics: Chilled water supply and return lines (12–18°C, 0.2–0.3 MPa) connected to standard BSP/NPT water jacket inlet/outlet flanges; compressed air supply (0.5–0.7 MPa) for the pulse-jet baghouse filter.
The buyer provides a reinforced level concrete industrial floor, main power cabling connected to the isolator breaker in the pulverizer control cabinet, continuous chilled cooling water supply (12–18°C) piped to the machine inlet/outlet manifolds, compressed air connection for pulse-jet filter cleaning, and product collection containers or big-bag packing stations below the cyclone discharge.
Spare parts
The parts that wear in normal service, and the spares worth keeping on site. How often a part is replaced depends on the material and the duty the machine runs, so the basis is confirmed for each machine.
Inspect tooth sharpness weekly; re-sharpen or replace every 1,500–3,000 operating hours or when production throughput drops by > 20% at equal motor load.
Precision CNC-machined serrated tool-steel discs. Direct cutting wear part. Discs can be precision re-ground 2–3 times before replacement. Keep one spare matched set in plant stock.
Inspect blade tips and liner teeth every 1,000 hours; replace when clearance widens significantly or when powder morphology degrades.
Multi-wing alloy impact blades and wear-resistant circular stator liner plates for turbo-type pulverizers.
Inspect screen daily for tears, holes, or blinding; replace immediately upon rupture to prevent coarse particles from contaminating finished powder.
High-tensile stainless steel (SUS304) sifting screens (available in 20, 30, 40, 50, 60, 80, 100 mesh) and silicone seal rings.
Inspect quarterly; replace when air blow-by reduces cyclone separation efficiency.
Flexible sealing vanes for the cyclone discharge rotary airlock valve, maintaining pneumatic negative pressure.
Inspect every 6 months; replace annually or when differential pressure indicates fabric blinding.
Antistatic needle-felt filter bags for the dedusting baghouse collector.
Inspect lubrication grease and vibration levels monthly; replace every 8,000–12,000 operating hours.
Precision high-speed angular contact ball / cylindrical roller bearings for the main drive spindle.
Blades, screens and other normal consumables are outside the standard warranty. How a spare part is identified and ordered is set out under Warranty & Spare Parts.
Selection
Work through what you already know. The rest is settled in the conversation, not before the first message.
Selecting the optimal industrial plastic pulverizer requires evaluating polymer thermal properties, required mesh size, particle morphology, and hourly throughput:
Request a Quote A model name, a material or a drawing is enough to start.
Tell us the material, the process and what you need to achieve. Technical details can be completed later together with our sales team.
