Large-Scale Recycling Plant Upgrades Production with 210 Type Plastic Pelletizing Machine Full-Automatic Water Washing Pelletizing Production Line for Quality and Capacity Expansion
Against the trend of large-scale development in the plastic recycling industry, equipment automation, material purification capacity and finished pellet quality are the core competitiveness for small and medium-sized recycling factories to get rid of low-price involution. A large comprehensive waste plastic recycling and regeneration enterprise in Shandong mainly engages in recycling and pelletizing of waste PE and PP films, pipes and industrial mixed materials. Before transformation, it adopted multiple small simple plastic pelletizing machines for parallel production, facing long-term production pain points.
Limited single-machine production capacity led to high labor costs for multiple production lines; the lack of a complete multi-stage water washing system caused incomplete cleaning of dirty waste materials, resulting in pellets with many impurities and black spots and uneven appearance; poor dewatering effect caused frequent pellet bubbling, adhesion and mildew, restricting products to low-end low-price markets; single-stage extrusion led to uneven plasticization with loose and unstable pellets, unable to undertake high-end modification orders; frequent shutdowns for screen replacement and maintenance caused huge capacity loss and high operation costs, severely restricting factory large-scale development.
To integrate production capacity, improve quality and profit, reduce costs and increase efficiency, after on-site inspection, capacity testing and process comparison of multiple models, the customer finally eliminated old small equipment and fully introduced our 210 type plastic pelletizing machine full-automatic integrated water washing pelletizing production line. A single line replaces multiple old lines to realize comprehensive production mode upgrading, achieving remarkable comprehensive benefits after half a year of stable operation.
In the material purification preprocessing stage, the multi-stage water washing system of the 210 type plastic pelletizing machine completely solves dirty material purification difficulties. The 1200 type thickened crushing and cleaning machine efficiently crushes large and sheet waste plastics while completing preliminary impurity removal. The 6m extended heavy-duty friction washer quickly strips stubborn oil stains and aging impurities, solving the incomplete decontamination problem of ordinary equipment.
The 8m+10m double-stage extended water tanks with multi-group tooth stirring filter tiny sediment and floating impurities layer by layer to greatly improve material cleanliness. Matched with the 820mm large-diameter double-layer lifting dryer calibrated by high-precision dynamic balance for stable operation, thorough double-layer centrifugal dewatering reduces material moisture content fundamentally, eliminating pellet bubbling, adhesion and mildew defects and producing clean, dry and uniform finished pellets.
In the core pelletizing stage, the double-stage venting precision plasticization + non-stop screen changing process comprehensively improves finished product quality and production stability. The 210 type 3.5m extended vented host with three groups of 80KW electromagnetic heaters realizes precise zoned temperature control with uniform heating and high energy efficiency, effectively discharging internal material water vapor and volatile impurities to achieve thorough melting without raw materials or carbonization.
The 90KW high-power host motor matched with the 330 type hard tooth surface reducer provides sufficient power and stable operation for 24-hour continuous mass production. The 170 type auxiliary machine completes secondary fine mixing and purification to make pellets denser, tighter and purer. The 400 type left-right alternating hydraulic screen changing head realizes non-stop and break-free screen replacement all the time, raising the equipment effective operating rate from the original 75% to over 95%, completely eliminating shutdown losses, greatly increasing production capacity and significantly reducing waste rate.
Full-line automatic configuration greatly reduces labor and maintenance costs to realize intelligent mass production. The 6m intelligent mobile silo, 7m transition conveyor and quantitative & forced feeding unit operate in precise linkage for automatic uniform feeding without frequent manual feeding and debugging. The 5m extended water tank realizes stable cooling shaping, the 220 type pelletizer completes precise cutting, and the 1.7m large vibrating screen realizes automatic grading screening to unify product specifications.
The national standard intelligent control cabinet realizes one-click full-line operation, requiring only 1-2 workers for whole-line supervision and greatly reducing labor costs. Core equipment components are thickened, reinforced and dynamically balanced calibrated, wear-resistant and durable with extremely low failure rate, featuring simple daily maintenance and greatly reduced repair costs.
The customer’s production director commented: After upgrading the 210 type plastic pelletizing machine production line, the factory completely abandoned the low-end low-price sales model. The recycled pellets are pure, bubble-free and regular in appearance, successfully cooperating with many high-end modification, injection molding and pipe manufacturing enterprises with a premium of over 300 yuan per ton of pellets.
The production capacity of a single line far exceeds the total output of multiple old small equipment. Comprehensive costs of labor, maintenance and loss are reduced, and the equipment investment is recovered in a short period. Currently, the production maintains stable mass production, and the customer plans to add more identical production lines to further expand production scale.
This case fully verifies that the 210 type plastic pelletizing machine full-automatic multi-stage water washing pelletizing production line perfectly meets the large-scale and refined production needs of medium and large recycling plants with core advantages of strong purification, high yield, high quality, low loss and full automation, serving as a benchmark model for recycling factory upgrading, quality improvement and profit growth.
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