1. Technical Overview

The PFFS-25EP series represents the fourth-generation FFS packaging system specifically engineered for engineering plastics like ABS, PC, PA, PP, and PE pellets. Featuring anti-static film handling and nitrogen purge capabilities, this ATEX-certified machine achieves 98% dust containment during high-speed operation (600 bags/hour at 25kg capacity). The integrated loss-in-weight feeder maintains ±0.15% dosing accuracy even with irregularly shaped plastic pellets.

2. Core Specifications

Material Compatibility: ABS/PC/PA/PP/PE pellets (2-5mm diameter) Film Type: 3-layer co-extruded PE film (150-200μm) with anti-static coating Sealing System: Dual-temperature heat bars (160-220°C adjustable) Special Features:Rotary film pre-stretching mechanism for wrinkle-free forming Vibration-assisted densification for low-bulk-density materialsRFID-tagged film roll auto-identification

3. Application Scenarios

3.1 Automotive Plastics

Packaging glass-fiber reinforced PA66 pellets with moisture-proof film ABS/PC blend packaging for interior components

3.2 Electronics GradeStatic-dissipative packaging for conductive PC/ABS compounds

Cleanroom-compatible PE pellet packaging

3.3 Recycled MaterialsPost-consumer PP flake packaging with dust extraction

Color-sorted ABS regrind packaging lines

4. Operational Protocol

4.1 Pre-Production SetupInstall film roll with<3° axial deviation

Prime nitrogen system (O₂<0.8% concentration) Calibrate load cells using 25kg ceramic calibration weights

4.2 Production CycleFilm unwinding → M-fold forming → Bottom sealing

Gravimetric filling with anti-bridging agitator Top sealing with batch code imprinting Bag ejection to automated palletizing line

5. Troubleshooting Guide

Issue: Film tearing during forming Solution: Adjust pre-stretch tension to 12-15N/mm²

Issue: Pellet leakage at seams Solution: Increase sealing pressure by 0.2MPa

Issue: Weight fluctuation >0.3% Solution: Clean load cell mounting surfaces

6. Frequently Asked Questions

Q1: What film thickness prevents pellet puncture? A: Minimum 180μm film with nylon reinforcement layer

Q2: How to handle hygroscopic materials like PA? A: Use integrated dehumidifying hopper (dew point -40°C)

Q3: What's the ROI period for this system? A: Typically 14 months vs manual packaging

Q4: Can it package mixed-color recycled flakes? A: Yes, with optional color-sorting reject system

Q5: What safety standards does it meet? A: ATEX Zone 22, ISO 21952 for plastic dust hazards