Granulator Machine
Plastic Granulator Machines, also known as crushers or grinders, are shredders used to granulate a variety of plastic materials into small, uniform sizes. The pelletizer can be used as a stand-alone machine. Or you can connect it to a feed conveyor or even a shredder baler to form a production line. Some heavy-duty pelletizers with high output rates are quite commonly used in recycling lines, such as RDF lines. They are usually located behind the shredder as a secondary pelletizing process to obtain smaller and uniformly sized items.
Plastic Granulator Machine is designed to be dependable sturdy machines in high throughput or demanding applications,span a wide range of sizes,starting from 500mm diameter up to 2000mm.
Sturdy recycling-focused design
Different hopper style
Various rotor options
Replaceable wear plates
Easy blade change/adjustment
Different applications in the plastic recycling field, especially plastic sheets, plastic drums, solid plastic, and tire rubber.
Granulators Range:
Heavy-duty plastic granulator machine: sometimes called plastic crushers: Heavy Duty Granulators Plastic Grinder wide range of materials can be crushed Plastics, Rubber, Paper & Cardboard, Copper Cable, Textiles, Foam, etc. The efficiency can reach 300kg-3500kg per hour.
Economical granulator: This Economic Small Plastic Granulator/Crusher is specially used for recycling material heads, leftover material, scraped injection molding, and PET bottles. It can improve work efficiency matching with crusher.
Inline granulator: Inline Plastic Scrap Granulator crusher machine is used to recycle corner material, corner plastic. Rigid plastic, such as PA, acrylic, POM, PBT, and material with fiber, as well as soft rubber, such as TPE, TPR, PU,TPU,EVA, rubber, and silica gel is applicable.
Integrating Your Plastic Granulator Machine into a Production Line
Optima's plastic granulator machines are designed as modular components that integrate cleanly into existing production environments or new-build recycling lines:
Upstream options:
Manual infeed hopper (standard)
Belt conveyor infeed (for bulky items or high-volume operation)
Metal detector (recommended for mixed or post-consumer scrap)
Pre-shredder integration (for oversized parts requiring primary size reduction before granulation)
Downstream options:
Gravity discharge to floor-level collection box or bag
Pneumatic conveying system (transports regrind to silo or bagging station)
Vibratory screen (separates fines from on-spec regrind)
Dust collection / air extraction system (recommended in enclosed production areas)
Direct re-feed to extruder hopper via blower conveying
Optima's engineering team designs the complete material handling system around your granulator — so the machine doesn't arrive as an isolated unit but as a working component in a functioning production workflow.
Why Manufacturers and Recyclers Choose Optima Plastic Granulator Machines
Factory-Direct ManufacturingOptima manufactures all granulators at our Changzhou, Jiangsu facility — one of China's established industrial equipment manufacturing bases. No intermediary markup. Direct engineering support from the people who built the machine.
Cost Advantage Without Quality CompromiseOptima's plastic granulator machines deliver equivalent throughput and output quality to European-branded equipment at 30–50% lower capital cost. Our blade material specifications (Cr12MoV hardened steel) and cutting chamber construction match or exceed those of standard European models at our price points.
Configurable at OrderUnlike catalogue-only suppliers, Optima configures rotor type, rotor width, screen mesh size, hopper style, and discharge method at order time based on your specific application. You receive a machine designed for your material — not the closest available stock item.
Comprehensive WarrantyMain structural components carry our heavy-duty warranty program. Wear parts (blades, screens, wear plates) are stocked and available for air-freight delivery to any global location within 48 hours of your service request.
Global Delivery & Installation SupportOptima has supplied plastic granulator machines to customers across North America, Europe, Southeast Asia, South Asia, Africa, and the Middle East. Our team provides installation guidance, remote commissioning support, and on-site engineer dispatch for major installations.
Frequently Asked Questions
Q1: What is the difference between a plastic granulator machine and a plastic shredder?
A:A shredder uses low-speed, high-torque tearing to reduce large or bulky items to rough fragments — it cannot produce consistent granule sizing. A plastic granulator machine uses high-speed precision cutting between rotating knives and stator blades, with a screen mesh controlling final particle size. In many recycling lines, a shredder handles primary size reduction and the granulator produces the final, consistent regrind. Optima manufactures both — and can design the combined system.
Q2: Can one granulator handle multiple plastic types?
A:Yes, with appropriate screen and rotor configuration. However, if you are switching between materials that cannot be contaminated (e.g. different colors or resins), you will need to purge the cutting chamber and swap screens between runs. Optima's quick-access cutting chamber design reduces changeover time significantly.
Q3: What is the minimum order — can I buy a single machine?
A:Yes. Optima supplies single machines as well as complete production lines. There is no minimum order quantity. We can provide a single economic granulator for a small injection molding workshop or a full central granulation system for a large recycling plant.
Q4: Can your granulators be integrated with our existing injection molding machines?
A:In most cases yes. Our in-line and slow-speed models are designed with base frames configurable to the standard footprint spacings of major molding machine brands. Provide us your machine brand and model and we'll confirm compatibility.
Granulating Machine Plastic Recycling Applications
Plastic Granulator Machines is widely used in the scrap recycling industry, especially in the field of plastics recycling. Granulators are ideal for crushing bulk waste materials such as PET, HDPE, PP, PE, PVC, and various other scrap plastic products. These scrap plastic materials are usually in the form of injection/extrusion runners, plastic tubes, films, PET bottles, HDPE containers, nylon strips or tubes, etc. In addition to being used in the plastics recycling field, pelletizers can also be used to shred many other types of scrap, such as paper, rubber, etc.
