According to the 2024 Global Salt Industry Report, the global annual salt consumption exceeds 300 million tons, with 75% requiring packaging before distribution. Traditional single-lane packaging lines face three critical limitations:

• Insufficient throughput: Single-lane machines max out at 80-120 bags/min, failing to support plants with >500 tons/day output.
• High labor dependency: Manual material handling and sorting account for 30% of operational costs.
• Inconsistent quality: Manual intervention leads to 2-3% packaging defects, violating FDA 21 CFR Part 117 food safety regulations.

The dual-lane integrated salt packaging line addresses these gaps by doubling throughput while maintaining precision, making it the preferred choice for medium-to-large salt producers worldwide.

Both models feature independent dual-lane operation (allowing simultaneous packaging of different specifications) and auto-correction weighing systems (integrating load cells with 0.1g resolution). The DL-400 includes a specialized anti-corrosion coating on contact surfaces, extending service life by 40% in high-salt environments.

1. Bulk Material Handling: A closed screw conveyor (capacity 20m³/h) transfers salt from storage silos to a dual-hopper feeding system, reducing dust emissions to <10mg/m³ (compliant with OSHA standards).
2. Dual-Lane Metering: Each lane operates independently with "fast-feed + precision-trim" technology, completing weighing cycles in <1.2 seconds per bag.
3. Sealing & Forming: Servo-driven forming tubes create three-side-seal bags (100-250mm width) with temperature-controlled sealing (160-190℃), achieving a 99.9% seal integrity rate.
4. Quality Inspection: Integrated checkweigher (rejection accuracy ±0.2g) and X-ray detector (identifies 0.2mm metal contaminants) operate in parallel with production speed.
5. Coding & Labeling: Laser coders print batch/lot numbers and best-before dates (legible for ≥3 years) while optional labelers apply barcodes for traceability.
6. Automated Sorting & Palletizing: A robotic arm sorts finished bags into designated cartons (20 bags/carton) before a palletizer stacks cartons (120 cartons/pallet) with ±5mm positioning accuracy.

1. Throughput Doubling: Dual-lane design achieves 200-400 bags/min, outperforming single-lane lines by 100-150% without increasing floor space (requires only 40m² footprint).
2. Labor Cost Reduction: Automating material handling and palletizing cuts labor needs by 60%, saving $80,000-$120,000 annually for a 2-shift operation.
3. Quality Compliance: ±0.3-0.5g accuracy meets EU Directive 2007/45/EC; X-ray inspection ensures compliance with global food safety standards.
4. Energy Efficiency: Variable-frequency drives reduce power consumption by 25% compared to conventional lines; heat recovery systems reuse 30% of sealing heat.
5. Flexibility: Quick-change tooling allows format switches (e.g., 500g to 1kg) in <10 minutes, supporting multi-SKU production.
6. Reliability: Mean Time Between Failures (MTBF) of 8,000 hours; remote diagnostic capabilities reduce downtime by 50%.

• Large-scale edible salt producers (output >500 tons/day)
• Industrial salt manufacturers (supplying chemical/construction sectors)
• Contract packers handling multiple salt specifications

A leading North American salt producer implemented 3 DL-400 lines in 2023, replacing 6 single-lane machines:

• Throughput Increase: From 1,800 bags/hour to 7,200 bags/hour per line
• Labor Savings: Reduced 24 operators to 8, cutting $360,000 in annual labor costs
• Defect Rate: Dropped from 2.8% to 0.15%, eliminating $120,000 in waste
• ROI Achieved: 14 months (vs. projected 18 months)

1. Custom Engineering: On-site survey and layout design tailored to existing plant infrastructure.
2. Installation & Commissioning: 2-week on-site installation with 72-hour continuous performance testing.
3. Training Program: 40-hour operator/maintenance training (includes digital manuals and video tutorials).
4. Warranty Coverage: 2-year comprehensive warranty; 5-year extended warranty on core components.
5. Spare Parts: Localized spare parts inventory ensuring <48-hour delivery for critical components.
6. Preventive Maintenance: Quarterly remote monitoring and annual on-site maintenance visits.