As global carbon neutrality policies and plastic restriction regulations (such as the EU's PPWR) take effect, the recycled plastic market is experiencing explosive growth. Film and rigid plastics account for more than 70% of global waste plastic streams, and choosing the right recycling equipment directly determines the profitability and compliance of your recycling project.
Many new entrants fall into the dilemma of unqualified capacity, poor product quality, and high operating costs due to improper equipment selection. Combined with the practical experience of thousands of recyclers worldwide, this guide sorts out the core selection criteria for the two key recycling equipment, helping you find the most suitable solution for your business.
1. Key Selection Criteria for Film Plastic Recycling Line
Waste plastic films (agricultural films, packaging stretch films, PP non-woven fabrics, courier bags, etc.) are characterized by fluffy texture, high moisture content, and easy contamination with oil, ink, and sediment. The selection should focus on the following 3 core points, combined with Rehoboth's mature film recycling line solutions:
1.1 Pretreatment Unit Matching Material Characteristics
Fluffy film materials are prone to uneven feeding and blockage, and highly contaminated raw materials will directly affect the quality of finished pellets. Prioritize lines equipped with a forced feeding system, agglomerator, and multi-stage closed-loop washing line:
The agglomerator compresses fluffy film into dense granules, solving the feeding instability problem and increasing extrusion efficiency by more than 30%;
The friction washing + hot washing unit efficiently removes oil, ink, and sediment, matched with a high-performance squeezer, which reduces energy consumption and bubble risk in the subsequent extrusion process from the source.
1.2 Extrusion Structure Matching Material Contamination Level
Choose single-stage or multi-stage extrusion structure according to the cleanliness of raw materials, and prioritize equipment with superior degassing and filtration capabilities to avoid plastic overheating or degradation during processing:
For clean industrial film scrap and unprinted new materials, a single-stage extrusion line is recommended, with simple structure, lower energy consumption, and shorter payback period;
For highly contaminated and high-moisture agricultural films and post-consumer waste films, Rehoboth's two-stage or three-stage vented extrusion line is the best choice. The main unit completes plasticization and high-efficiency vacuum exhaust, the second unit completes secondary filtration and stable pelletizing, which completely solves the problem of pellet bubbles caused by moisture and volatiles.
All core screws are made of 38CrMoAl nitrided steel (HV ≥950), matched with Changzhou Jiuyuan hardened tooth surface gearboxes, Nanjing Yousu motors and Pioneer inverters, ensuring long-term stable operation with low failure rate.
1.3 Quality Control System for High-Value Pellets
The market value of recycled pellets directly depends on purity, uniformity, and melt strength. Prioritize lines equipped with an automatic non-stop hydraulic screen changer and pressure-stabilizing system:
The multi-layer filtration structure effectively removes fine impurities, and the automatic screen change design avoids capacity loss caused by shutdown;
The stable extrusion system ensures uniform, smooth and dense pellets, which can meet the requirements of high-end downstream applications such as film blowing and food-contact injection molding, increasing the premium of recycled pellets by 20%-50%.
Rehoboth's film line supports synchronous extrusion, one-pass pelletizing and recirculating production, which further improves the finished product rate and reduces raw material waste.
2. Core Selection Points for Rigid Plastic Recycling Pelletizer
Rigid waste plastics (PP/PE bottles, ABS home appliance shells, PVC pipes, PA/PC/POM engineering plastic scraps, etc.) have the characteristics of high hardness, strong abrasiveness, and wide variety span. The selection should focus on the following 3 points, combined with Rehoboth's full-series rigid pelletizer solutions:
2.1 Complete Pre-sorting and Crushing Supporting Capacity
Rigid plastics need to be crushed to a suitable particle size first, and impurities such as metal and non-target plastics must be removed, otherwise it is very easy to damage the screw and barrel, leading to a surge in equipment failure rate.
Prioritize pelletizers that can be matched with a single-shaft shredder + powerful crusher + magnet conveyor sorting unit. Rehoboth's pelletizer is equipped with a standard 3.5-5m magnet conveyor, which can effectively remove metal impurities, and with NIR sorting equipment, more than 99.5% of non-target impurities can be removed, protecting core components from the source.
2.2 High Wear-Resistant Core Components
Rigid plastics (especially glass fiber reinforced engineering plastics) have extremely strong abrasion to the screw and barrel, and the material of core components directly determines the service life and operating cost of the equipment.
Prioritize pelletizers with 38CrMoAl nitrided alloy screw and barrel (HV ≥950). Compared with ordinary nitrided steel, its wear resistance is increased by 3-5 times, and the service life can be extended to more than 5 years, reducing the long-term operating cost by more than 40%. Rehoboth's full-series pelletizers are equipped with this high-wear-resistant screw, matched with hardened tooth surface gearboxes, quantitative automatic feeders, and double hydraulic screen changers, suitable for long-term continuous processing of high-abrasive rigid plastics.
2.3 Flexible Production Capacity for Multi-Material Processing
Most recyclers process multiple types of rigid plastics such as PP, PE, ABS, PC, PA, POM at the same time, and the flexible production capacity of the equipment directly determines the capacity utilization rate.
Prioritize pelletizers with intelligent adjustable temperature control system and quick material change design, which can flexibly adjust process parameters according to the melting characteristics of different plastics, and the material change and cleaning time can be shortened to less than 1 hour, greatly reducing the downtime loss of material change. Rehoboth provides 7 standard models (130-200 type) with capacity ranging from small to large, and supports customize solutions for crushing capacity, dimensions, and automation level according to your actual needs.
3. Universal Selection Tips to Avoid Pitfalls
No matter which equipment you choose, you must first confirm the following 3 core prerequisites:
Compliance Certification: The equipment must have CE, UL and other mandatory certifications for the target market, and can meet the traceability requirements of the GRS (Global Recycled Standard), to ensure that your recycled pellets can enter the EU, North America and other mainstream global markets.
Reliable After-sales Support: Prioritize manufacturers with mature after-sales system. Rehoboth provides 2-year warranty for core equipment, 24-hour online service, professional offline installation and commissioning, operator training, and global agency consulting service, to solve the worries of long-term operation.
Verifiable Test Results and Customer Cases: Prioritize manufacturers that can provide free trial of the same type of raw materials and have mature customer cases of the same scale, to verify the quality of finished pellets and the long-term operation stability of the equipment.
Conclusion
Choosing the right recycling equipment is not just buying a production tool, but choosing a long-term technical partner. REHOOTH high-quality film plastic recycling line and rigid plastic recycling pelletizer, with mature technical solutions, reliable core configuration and perfect after-sales service, can help you achieve a win-win situation of environmental benefits and profit space in the fast-growing recycled plastic market.
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