Product Introduction

FFS (Form-Fill-Seal) Bagging Machine is a fully automated packaging solution designed specifically for granular petrochemical products like polymer pellets, catalyst beads, and resin compounds.  This heavy-duty system integrates film unwinding, bag forming, precision weighing (±0.1% accuracy), nitrogen flushing, and heat sealing in one continuous operation.  The servo-driven machine achieves speeds of 1000-1600 bags/hour while handling abrasive materials with its wear-resistant stainless steel contact parts.

Key Specifications

• Capacity: 1000 bags/hour (25kg standard)

• Weighing System: Loss-in-weight feeder with 0.1% precision

• Power: 380V±10%, 28kW

• Film Compatibility: Multi-layer co-extruded PE/PP films (600-1000mm width)

• Sealing Type: Dual hot bar cross-sealing + cool seal reinforcement

• Special Features: ATEX-certified explosion-proof option, nitrogen purge system

Application Scenarios

1. Polymer Production: Packaging polyethylene/polypropylene pellets with anti-static film

2. Catalyst Manufacturing: Moisture-sensitive zeolite beads requiring nitrogen atmosphere

3. Synthetic Rubber: Carbon-black filled compounds needing dust containment

4. Specialty Chemicals: Flame-retardant additives with corrosive properties

Operating Procedure

Pre-Operation

Mount film roll on servo-controlled unwind shaft

Thread film through forming collar and tension rollers

Calibrate load cells using 25kg test weights

Parameter Setup

Input bag dimensions (typically 600×900mm)

Set target weight (25kg) with auto-compensation for material density

Configure sealing temperature (160-200°C depending on film)

Production Cycle

Automatic film advance → vertical tube formation → bottom seal

Gravimetric filling via split-gate discharge

Top sealing with date/batch coding

Finished bag ejection to conveyor

Maintenance Requirements

Daily:

Clean residual particles from weighing hopper

Check pneumatic filter regulators

Inspect sealing jaw surfaces

Monthly:

Lubricate chain drives with high-temperature grease

Replace worn film guide rollers

Verify torque on all servo motor couplings

Troubleshooting Guide

Problem: Irregular bag lengths

Solution: Adjust film tensioner pressure and verify encoder alignment

Problem: Weak seal strength

Solution: Increase temperature by 10°C increments or replace PTFE coating

Problem: Weighing drift

Solution: Recalibrate load cells and check air cushion stability

Frequently Asked Questions

Q1: What film thickness is recommended for sharp petrochemical granules?

A: Minimum 150μm multi-layer film with nylon reinforcement

Q2: How does the nitrogen system prevent material oxidation?

A: Maintains<0.5% O₂ concentration during filling via integrated gas analyzer

Q3: Can it handle recycled plastic flakes with inconsistent density?

A: Yes, with optional volumetric vibration compactor for uniform packing

Q4: What safety features protect operators?

A: Emergency stops, light curtains, and explosion-proof electrical components

Q5: How is metal contamination prevented?

A: Magnetic separator at infeed and metal-detector reject system

This industrial-grade packaging solution combines high throughput with precise measurement capabilities essential for petrochemical applications, while its modular design allows customization for specific material handling requirements.  The machine complies with international standards including ATEX Directive 2014/34/EU for hazardous environments.