Explore our high-viscosity melt continuous filtration hardware and custom-engineered granulating components tailored for global plastics manufacturers.
Transforming Post-Industrial Scrap and Virgin Resin into High-Value Uniform Pellets via Advanced Compounding Architecture & Precision Melt Filtration.
PCR streams (HDPE bottles, PP packaging films, PET containers) contain high moisture levels, organic residue, cross-contaminants, and volatile organic compounds (VOCs). ODM plastic granulating lines solve these challenges by pairing multi-stage vacuum degassing zones with high-surface-area continuous candle filter housings that strip out volatile gas and particulates down to 10 microns without line interruptions.
PIR processing demands extreme mechanical reliability and direct scrap feeding without double-heat-history degradation. Advanced ODM pelletizing machines feature cutter-compactor inline integration that densifies light film trims, nonwoven web roll stock, and edge cuts directly into the twin-screw extruder barrel, preserving mechanical tensile strength.
Deconstructing the technological building blocks: Co-rotating twin screw extrusion, melt filtration physics, and automated pelletization systems.
The heart of any granule making machine lies in its length-to-diameter ratio (L/D from 32:1 to 52:1) and modular screw block configuration. Co-rotating intermeshing twin screws provide exceptional distributive and dispersive mixing, ensuring uniform pigment dispersion, filler loading (e.g., up to 80% CaCO3/Talc), and polymer homogenization.
High-viscosity polymer melts require specialized filtration solutions to prevent die head blockage and granule gel defects. Utilizing high-surface-area SUS 304/316 stainless steel candle filter elements, multi-layer sintered wire mesh, or continuous leaf disc filters allows operation under melt pressures up to 30 MPa with filter ratings from 3 to 250 microns.
Depending on polymer rheology and throughput requirements, ODM granulating lines employ three core pelletizing modes: Strand Pelletizing (ideal for rigid thermoplastics), Water-Ring Pelletizing (for PE/PP masterbatch), and Underwater Pelletizing (UWPS) for spherical pellets with zero dust and ultra-uniform size distribution.
Comprehensive comparative analysis of engineering parameters across standard ODM plastic granulating systems.
| Machine Series | Screw Extruder Type | Filtration System Integrated | Pelletizing Method | Capacity Range | Target Polymer Materials |
|---|---|---|---|---|---|
| HG-TSE High-Output | Co-Rotating Twin Screw (L/D 44:1 - 52:1) | Dual-Piston CPF Polymer Candle Filter Housing | Underwater Pelletizing System (UWPS) | 800 - 3,500 kg/h | PET, PA66, PC, TPU, Virgin Polymer Compounding |
| HG-Recycle Pro | Single / Double Stage Degassing Extruder | Continuous Hydraulic Screen Changer / Wire Mesh Filter | Water-Ring Cutting / Strand Cutter | 300 - 1,800 kg/h | Post-Consumer PP/PE Films, Woven Bags, Rigid Flakes |
| HG-Masterbatch ODM | High-Torque Twin Screw Extruder (L/D 36:1 - 40:1) | Stainless Steel Pleated Candle Filter Elements | Air-Cooled Die Face Cut / Strand Pelletizer | 150 - 1,200 kg/h | Color Masterbatch, Filler Masterbatch (CaCO3/Talc) |
| HG-Micro Granule | Precision Co-Rotating Twin Screw | Leaf Disc High-Precision Filter Stack | Micro-Pellet Underwater Cutter (<1.2mm) | 100 - 600 kg/h | Rotomolding Powders, Engineering Resins, Adhesives |
From high-speed automotive component molding to high-purity chemical fiber spinning lines—how customized granules drive industrial success.
The automotive sector demands high-impact glass-fiber-reinforced Polypropylene (PP), PA6/PA66, and ABS/PC engineering alloys for under-the-hood and interior structural components. ODM granule machines equipped with side feeders for long glass fiber (LGF) addition preserve fiber length while maintaining melt homogeny. High-pressure stainless steel wire mesh screen changers eliminate gel clumps and unmelted polymer fraction, preventing structural failure in downstream injection molding.
Biaxial orientation film production (BOPP, BOPET, BOPA) requires pristine polymer purity. Even sub-50-micron gel particles cause film tears during high-speed transverse orientation stretching. ODM plastic granulating manufacturers integrate multi-station Continuous Polymer Filter (CPF) housings containing SUS 316L pleated candle filter elements. This setup enables continuous 24/7 extrusion operation with zero drop in melt flow rate or pressure spikes during filter switching.
In synthetic fiber production (Polyester POY/FDY and PP Spunbond nonwovens), melt cleanliness directly governs spinneret pack longevity and filament uniformity. Granules recycled from edge trims or virgin melt stock must undergo micro-filtration through leaf disc filters or candle filter cartridges down to 5-15 microns. This level of filtration removes trace metal particles and degraded degraded polymer gel matrices prior to fiber extrusion.
Waste Electrical and Electronic Equipment (WEEE) yields heavily contaminated ABS, HIPS, and PC scrap. ODM granulating equipment for WEEE recycling incorporates heavy-duty shredder-extruder integration, triple vacuum degassing, and high-torque screws equipped with bimetallic wear protection. Continuous back-flush screen changers continuously purge heavy foulants, yielding premium dark-grade granules for appliance housings.
How AI automation, hyper-filtration, and bio-polymer processing are defining the next decade of plastic granule machine design.
Integration of inline optical gel counters, real-time Melt Flow Index (MFI) sensors, and dynamic screw RPM adjustment algorithms. AI logic automatically compensates for feed quality fluctuations in PCR scrap by controlling vacuum pressure, barrel temperature profiles, and additive dosing pumps without operator intervention.
Advanced manufacturing of SUS 316L metallic fiber felt candle filters utilizing 3D micro-sintering technology. These filter media feature void volume exceeding 80%, dramatically reducing initial pressure drops while multiplying contaminant holding capacity by 300% compared to traditional woven mesh. Automated backflush systems reduce polymer purge melt loss to under 0.5% during screen changes.
Biodegradable resins exhibit narrow thermal processing windows and rapid hydrolysis degradation under trace moisture. Next-gen ODM granulating lines incorporate hyper-dry atmospheric nitrogen sealing, ultra-low shear screw profiles, and specialized corrosion-resistant nickel-alloy barrels to process compostable bioplastics without chain scission.
Adoption of electromagnetic induction barrel heating systems, heat recovery loops from underwater pelletizer water systems, and direct-drive synchronous reluctance motors. Combined, these innovations lower specific electrical consumption (SEC) down to <0.20 kWh per kilogram of finished plastic granules produced.
From metallurgical selection and CAD engineering to global commissioning, validation, and maintenance support.
Extruding abrasive fillers (CaCO3, Glass Fibers, TiO2) or corrosive polymers (PVC, Fluoropolymers) causes rapid screw and barrel wear. ODM engineering options include PM-HIP bimetallic liners, Tungsten Carbide laser cladding, and Hastelloy C-276 filter assemblies for extended operational life under extreme friction.
Complete ODM plant layouts seamlessly connect pelletizing discharge with continuous fluid-bed vibro-driers, optical granule sorting cameras, automated pneumatic conveying systems, and multi-silo storage with loss-in-weight batching for packaging into 25kg bags or 1-ton Octabins.
Every ODM granulating machine and polymer filter housing undergoes rigorous non-destructive testing (NDT), hydrostatic pressure testing up to 1.5x working pressure, dynamic screw balancing, and full factory acceptance testing (FAT) prior to worldwide export.
Deep technical answers addressing buyer inquiries, engineering evaluation criteria, and operational best practices.
Discover high-efficiency recycling lines, SUS 304/316 wire mesh filters, and specialized candle filter elements for industrial plants.
