PP Ton Bag Crushing and Pelletizing Machine

Product Overview

The PP ton bag crushing and pelletizing machine is a wear-resistant woven bag recycling and pelletizing equipment equipped with a compacting and agglomeration feeding system. It is specifically designed for the recovery and regeneration of waste PP woven materials, supporting direct processing of whole bags or bundles of used woven materials without requiring prior shredding. This enables efficient production of high-quality recycled PP pellets. As a customized product, the machine can be tailored to meet customers’ specific throughput requirements. Standard models offer capacities ranging from 100 to 1500 kg/h. Key components are crafted from premium wear-resistant materials and paired with renowned brand-name parts, ensuring long-term stable operation. It stands as an efficient, energy-saving core processing unit in the field of waste plastic recycling.

Technical Principle

This equipment employs an integrated process combining a compactor and a thickened, wear-resistant single-screw extruder to achieve highly efficient recycling and pelletization of waste woven materials. The specific workflow is as follows: Waste woven bags and ton bags are directly fed into the compactor chamber, where high-speed rotating and stationary blades perform powerful shearing and disintegration. Inside the chamber, materials collide and rub at high speeds, generating heat through friction and self-heating. The originally fluffy woven material shrinks and compacts into uniform agglomerates, increasing its bulk density by 3–4 times before being steadily fed into the extrusion screw. Subsequently, during the extrusion stage, segmented heating combined with a high-shear screw completes melting and plasticization. Multi-stage filtration dies then remove contaminants such as ink and sand, followed by water-cooled pelletizing to produce high-quality recycled PP pellets. The entire process eliminates the need for additional shredding steps, while the self-friction preheating design further enhances plasticization efficiency and reduces energy consumption.

Core Performance Parameters

1. Standard model capacity: 100–1500 kg/h
2. Screw and barrel materials: 38CrMoAlA alloy and bimetallic materials, nitrogen-treated
3. Main motor power: 37–355 kW
4. Heating methods: electric heating, electromagnetic heating
5. Heater materials: cast aluminum, cast copper, mica, ceramic heaters
6. Motor brands: Siemens, ABB, Weg, or leading domestic brands
7. Pelletizing methods: die-face pelletizing, strand-cutting pelletizing
8. Bearing brands: NSK, SKF, INA, FAG, or top domestic brands
9. Inverter brands: ABB, FUJI, Delta, Siemens
10. Compactor feed capacity: capable of directly processing whole bundles or bags of woven materials, increasing bulk density by 3–4 times
11. Delivery time: 70–80 working days
12. Warranty period: 13 months from the bill of lading date
13. Trademark and brand: PURUI
14. Place of origin: NANTONG

Key Advantages

1. No bridging or material jamming in compactor feeding: Featuring a proprietary compacting and agglomeration feeding system, it ensures uniform and stable feeding, completely resolving the issue of loose woven materials causing blockages in traditional equipment, thus guaranteeing continuous, stable operation.
2. Eliminates separate shredding step: Allows direct processing of whole bags or bundles of waste woven materials without prior shredding, significantly reducing production steps and saving on associated shredding equipment and labor costs.
3. Self-friction preheating saves energy and boosts efficiency: Materials generate heat through friction within the compactor, achieving preheating and compaction, which enhances subsequent plasticization efficiency. Each ton processed can save over 12% in electricity, resulting in lower operating energy consumption.
4. Thickened, wear-resistant screw handles dirty materials: The screw is made of alloy wear-resistant material and undergoes nitrogen treatment, providing exceptional wear resistance. It can handle heavily contaminated materials, slowing down screw wear and reducing maintenance costs.
5. Multi-stage filtration ensures pellet purity: Equipped with multi-stage filtration dies, it effectively removes contaminants like ink and sand, producing recycled PP pellets of high purity with a defect rate kept below 3%, suitable for direct reuse in woven bag production.

Core Product Value

1. Cost reduction and efficiency gains: By eliminating the separate shredding step, it reduces staffing needs by 1–2 operators, cutting labor costs by 35%; each ton processed saves over 12% in electricity, significantly lowering long-term energy expenses.
2. Stable capacity improvement: Uniform feeding by the compactor prevents capacity fluctuations, enabling a single line to produce up to 36 tons per day around the clock, far surpassing the operational efficiency of conventional pelletizing equipment.
3. Extended equipment lifespan: Alloy tool life is extended by 120%, and wear-resistant screws experience reduced wear, substantially decreasing maintenance frequency and replacement costs, thereby prolonging overall equipment life.
4. High-quality pellet output: Multi-stage filtration ensures pellet purity, keeping defect rates below 3%. The recycled pellets can be directly reused in woven bag production, enhancing the economic value of recovered materials.

Target Customer Groups

This equipment primarily targets woven bag manufacturers, cement and grain packaging companies, waste plastic recycling plants, and recycled pellet processing facilities—businesses with substantial demand for recovering waste woven materials. It helps these enterprises achieve closed-loop material regeneration, reduce raw material procurement costs, and improve resource utilization.

Application Scenarios

The PP ton bag crushing and pelletizing machine is specially designed for recycling and pelletizing various types of PP woven materials. It finds wide application in recycling and regenerating cement woven bags, grain ton bags, containerized space bags, snake-skin mesh bags, and laminated woven bags. Whether it’s waste packaging generated internally by a company or reclaimed materials purchased by recycling organizations, this equipment can directly process them into high-quality recycled pellets, realizing resource circularity.

Solutions to Industry Pain Points

1. Solves the problem of loose woven materials causing blockages in feeding systems: The compactor’s agglomeration feeding system increases material bulk density through frictional compaction, completely preventing bridging and material jams, ensuring continuous, stable equipment operation.
2. Eliminates extra costs associated with pre-shredding: Without the need for separate shredding steps, whole bags and bundles can be directly fed into the machine, reducing investment in shredding equipment and labor operations, thus lowering production steps and labor costs.
3. Addresses capacity fluctuations caused by uneven feeding: The compactor uniformly outputs compacted agglomerates, ensuring stable screw feeding and preventing capacity swings due to uneven feeding, thereby maintaining consistent production efficiency.
4. Reduces screw wear and maintenance costs: The thickened, wear-resistant screw is designed to handle materials with high levels of impurities, slowing down screw wear and minimizing maintenance frequency and replacement costs, extending equipment lifespan.
5. Resolves issues of clogged screens and poor pellet quality caused by excessive contaminants: Multi-stage filtration dies effectively remove impurities, preventing screen blockages while improving pellet purity, keeping defect rates below 3% and ensuring compliance with quality standards.

Common Questions FAQ

Q1: Does this PP ton bag crushing and pelletizing machine require pre-shredding of waste woven materials?
A: No, the equipment features a compactor-based agglomeration feeding system that allows direct processing of whole bags and bundles of waste woven materials without prior shredding, eliminating the need for separate shredding steps.
Q2: What is the machine’s capacity range? Can it be customized?
A: Standard models have capacities ranging from 100 to 1500 kg/h. This equipment is a custom product that can be tailored to meet specific customer throughput requirements, accommodating businesses of varying scales.
Q3: How is the quality of the recycled pellets? Can they be used directly?
A: After removing impurities through multi-stage filtration dies, the produced recycled PP pellets exhibit high purity, with defect rates kept below 3%, making them suitable for direct reuse in applications such as woven bag production.
Q4: What brands are used for the machine’s major components?
A: Motors are sourced from Siemens, ABB, Weg, or leading domestic brands; bearings come from NSK, SKF, INA, FAG, or top domestic brands; inverters are supplied by ABB, FUJI, Delta, Siemens, and other reputable brands, all ensuring stable equipment operation.