250-Type Plastic pelletizing machine Operation Case: 35% Output Increase, Compliance Standard and Cost Reduction for Medium and Small Recycling Plants

With the compliance upgrading of the plastic recycling industry, a large number of small and medium-sized plastic recycling processing plants are faced with dilemmas including aging equipment, insufficient output, high energy consumption, unqualified finished products and failure to access foreign trade orders. This customer case comes from a medium and small plastic recycling processing plant in Shandong, mainly engaged in waste woven bag, plastic film and PP/PE scrap recycled granulation processing. Its old Plastic pelletizing machine has drawbacks including excessive noise, uneven plasticization, fast accessory wear and high energy consumption, which not only restricts output improvement, but also fails to meet foreign trade compliance standards due to low granule purity, severely restricting enterprise development. In 2025, the plant completed full equipment upgrading and purchased our 250-type main unit  Plastic pelletizing machine, achieving all-round upgrading of output, quality, compliance and cost after commissioning.

The medium-sized plant has daily raw material processing capacity of 6-7 tons, and its old granulating equipment has four core pain points: First, common screw and barrel materials suffer severe wear after long-term processing of impurity-containing waste plastics, requiring monthly shutdown maintenance and occupying plenty of production time. Second, uneven temperature control of traditional heating mode leads to poor plasticization effect, with granule defective rate up to 5% and serious raw material waste. Third, loud operating noise repeatedly approaches EIA over-standard line, restricting normal production. Fourth, the recyclability of finished granules fails to meet EU PPWR export requirements, so the plant can only receive low-end domestic trade orders with extremely low profit margin.

According to the plant’s actual production scenario, raw material type, output demand and compliance requirements, our engineers customized a complete commissioning solution equipped with the 250-type main unit  Plastic pelletizing machine. The equipment is equipped with original thickened wear-resistant screw barrel, dual-stage hard-tooth surface low-noise reducer and intelligent segmented heating system, matched with simple auxiliary feeding and cooling equipment. It fits the customer’s existing production line layout without large-scale factory renovation, realizing quick commissioning and operation.

Three months after equipment commissioning, the customer’s production data was greatly optimized with prominent actual effect. In terms of output, the equipment supports stable 24-hour non-stop operation without frequent shutdown maintenance. The daily finished granule output rises from original 5 tons to 6.8 tons, with overall output increased by more than 35% and greatly broken production efficiency bottleneck. In terms of product quality, the 40CR high-frequency wear-resistant screw and precise segmented heating system ensure more uniform plasticization and thorough impurity filtration. The granule defective rate drops from 5% to less than 1%, with high purity and good uniformity. Tested by a third-party institution, the granule recyclability reaches 78%, fully complying with 2030 EU PPWR regulation access standards, helping the plant obtain foreign trade recycled raw material orders.

In terms of cost and environmental protection, the electromagnetic energy-saving heating system delivers remarkable advantages, cutting overall energy consumption by 30% compared with old equipment and saving thousands of yuan on electricity bills monthly. The 375-type low-noise reducer completely solves noise over-standard problems, keeping factory operating noise at about 72 decibels and smoothly passing the latest environmental EIA inspection with no production restrictions. Meanwhile, core accessories have excellent wear resistance with zero wear and zero failure within three months after commissioning, nearly zero maintenance cost and greatly reduced comprehensive production cost.

Customer feedback: The 250-type Plastic pelletizing machine has strong adaptability, simple operation and stable operation, completely solving various production problems of old equipment. It not only greatly improves output and product quality, but also opens up compliant foreign trade order channels. Its cost performance is far higher than similar products, with professional technical guidance and reliable after-sales support from the manufacturer. We will give priority to cooperation for future capacity expansion.

This case fully verifies that the 250-type main unit Plastic pelletizing machine accurately meets production demands of small and medium-sized plastic recycling plants, owning four core advantages: high efficiency, energy saving, durability and compliance. It eliminates production drawbacks of traditional equipment, helps enterprises access high-end compliant markets and enhance core competitiveness, becoming an ideal choice for medium and small factories to upgrade equipment.

Core Achievements Summary of This Case

1. Output Upgrade: 35% higher daily output, greatly improved continuous operation stability and no frequent shutdown faults;
2. Quality Upgrade: Granule defective rate reduced to less than 1%, finished granules meeting EU PPWR recycling compliance standards and accessing foreign trade orders;
3. Cost Optimization: 30% lower overall energy consumption, greatly reduced maintenance loss and significantly decreased comprehensive production cost;
4. Environmental Compliance: Standard low-noise operation, smooth passing of factory environmental EIA inspection with no production restrictions.

   

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