Grain Woven Bag Granulator

Product Overview

The grain woven bag granulator is a wear-resistant recycled granulation machine for woven bags launched by the PURUI brand. It is a customized product with no fixed price, tailored according to the customer’s production capacity requirements. The equipment is equipped with a dedicated compacting and agglomeration feeding system, capable of directly processing whole bags of waste woven materials without prior shredding. Relying on an integrated process combining compaction and a thickened, wear-resistant single-screw design, it efficiently produces high-quality PP recycled pellets, suitable for recycling and granulating various types of used woven materials such as cement woven bags, grain ton bags, bulk space bags, snake skin mesh bags, and laminated woven bags. It serves a wide range of customers, including woven bag manufacturers, cement and grain packaging companies, waste plastic recycling plants, and recycled pellet processing facilities.

Technical Principle

This granulator employs an integrated process of compaction and a thickened, wear-resistant single-screw design, enabling a complete processing flow from waste woven materials to PP recycled pellets. Used woven bags or ton bags can be directly fed into the compactor chamber, where high-speed rotating and stationary blades perform powerful shearing and disintegration. As the material collides and rubs at high speed within the chamber, friction generates heat, causing the originally fluffy woven material to contract and compact into uniform agglomerates. After the bulk density increases by 3–4 times, the material is smoothly fed into the extrusion screw. In the screw stage, the material undergoes segmented heating and intense shearing to melt and plasticize, followed by multi-stage filtration through the die head to remove ink, dirt, and other impurities. Finally, water-cooled cutting forms the pellets, yielding high-quality PP recycled pellets. The entire process eliminates the need for additional crushing steps; self-frictional preheating saves energy during plasticization, while the thickened, wear-resistant screw accommodates processing of highly contaminated materials.

Performance Parameters

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

Core Advantages

1. No bridging or clogging in compactor feeding: The dedicated compacting and agglomeration feeding system ensures uniform and stable feeding, completely resolving the industry’s longstanding issue of fluffy woven materials getting stuck in the feeder, thus maintaining smooth production flow.
2. Eliminates separate shredding step: Whole bags or bundles of waste woven materials can be directly fed into the machine without prior shredding, reducing production steps and labor costs while significantly boosting efficiency.
3. Energy-saving self-frictional preheating: Utilizing high-speed collisions and friction within the compactor to generate heat, this method achieves higher plasticization efficiency, saving more than 12% electricity per ton compared to conventional equipment, delivering remarkable energy savings.
4. Thickened, wear-resistant screw handles dirty materials: The alloy-based, nitrogen-treated screw is designed to process heavily contaminated materials, avoiding the rapid wear and high maintenance costs associated with standard screws, thereby extending equipment lifespan.
5. Multi-stage filtration ensures pellet purity: Advanced filtration through multiple stages effectively removes ink, dirt, and other impurities, producing PP recycled pellets of high purity with a defect rate kept below 3%, making them suitable for direct reuse in woven bag production and enhancing the market value of the pellets.

Core Value of the Product

1. Cost reduction and efficiency gains: By eliminating the separate shredding step and reducing manpower by 1–2 operators, labor costs drop by 35%; a single production line can produce up to 36 tons per day, dramatically increasing capacity and shortening the investment payback period.
2. Energy conservation and reduced consumption: Self-frictional preheating saves energy during plasticization, cutting electricity use by over 12% per ton; extended tool life by 120% reduces consumable replacement costs.
3. Quality upgrade: Multi-stage filtration ensures high pellet purity, keeping defect rates below 3%, allowing the produced PP recycled pellets to be directly reused in woven bag manufacturing, enhancing the competitiveness of recycled products.
4. Simplified operation: No need to shred materials beforehand—whole bags or bundles can be fed directly into the machine, lowering operational barriers and easing management of production processes.

Target Customer Groups

This equipment targets woven bag manufacturers, cement and grain packaging companies, waste plastic recycling plants, and recycled pellet processing facilities. Woven bag producers can recycle used woven bags into new pellets, achieving raw material circularity; cement and grain packaging firms can process discarded packaging bags, reducing solid waste disposal costs; waste plastic recyclers can expand their business to include processing used woven materials, adding value to recovered resources; and recycled pellet processors can leverage this equipment to efficiently produce high-quality PP recycled pellets, meeting market demand for recycled plastic granules.

Application Scenarios

The grain woven bag granulator is primarily used for recycling and granulating various types of waste woven materials, including cement woven bags, grain ton bags, bulk space bags, snake skin mesh bags, and laminated woven bags. Whether handling large batches at small-scale waste plastic collection points or scaling up production at major recycled pellet processing plants, the equipment can be custom-tailored to meet specific customer output needs, efficiently transforming waste woven materials into high-quality PP recycled pellets and creating stable economic benefits for clients.

Solutions to Industry Pain Points

1. Solves the problem of fluffy woven materials getting stuck in the feeder: The compactor’s agglomeration feeding system compresses fluffy materials into uniform pellets, increasing bulk density by 3–4 times, ensuring consistent and stable feeding, completely preventing bridging and clogging, and guaranteeing continuous production.
2. Eliminates extra costs associated with pre-shredding: The equipment can directly process whole bags or bundles of woven materials without requiring separate shredding equipment or personnel, reducing labor by 1–2 workers and cutting both equipment and maintenance expenses.
3. Addresses capacity fluctuations caused by uneven feeding: The stable compactor feeding system ensures uniform material input to the screw, preventing capacity variations due to uneven feeding and maintaining steady output.
4. Improves the issue of rapid wear on standard equipment screws: The thickened, wear-resistant screw made of alloy and nitrogen-treated is designed to handle highly contaminated materials, significantly extending service life compared to ordinary screws and reducing repair and replacement costs.
5. Resolves problems of clogged screens and poor pellet quality caused by excessive impurities: Multi-stage filtration effectively removes ink, dirt, and other contaminants, producing recycled pellets of high purity with defect rates kept below 3%, making them suitable for direct reuse in woven bag production and enhancing the quality and market acceptance of the pellets.

Frequently Asked Questions (FAQ)

Q1: Does this grain woven bag granulator require pre-shredding of waste woven materials?
A: No, the equipment features a compactor agglomeration feeding system that allows direct feeding of whole bags or bundles of waste woven materials without prior shredding, greatly simplifying the production process.
Q2: What is the equipment’s capacity range? Can it be customized?
A: The standard model has a capacity of 100–1500 kg/h. This equipment is a custom product, tailor-made to suit each customer’s actual production needs, accommodating different scales of operation.
Q3: How is the quality of the produced PP recycled pellets? Can they be used directly?
A: The equipment uses multi-stage filtration to remove impurities, resulting in high-purity recycled pellets with defect rates kept below 3%, making them suitable for direct reuse in woven bag production without further processing.
Q4: What is the warranty period, and how long does delivery take?
A: The warranty lasts 13 months from the date of the delivery note, and delivery takes 70–80 working days, adjustable based on customization requirements.
Q5: Compared to traditional granulation equipment, what are the energy-saving advantages of this machine?
A: By utilizing friction generated during material collisions inside the compactor to achieve self-heating preheating, this equipment eliminates the need for additional preheating energy, resulting in higher plasticization efficiency and saving over 12% electricity per ton. Over time, it can help customers significantly reduce energy costs.