Songyang Express Hub: High-Capacity Narrow Belt Sorter Processing 10,000 PPH

Project Overview & Operational Challenges

Modern regional express hubs face relentless pressure from escalating package volumes, tight delivery windows, and high operational costs. At the Songyang Express Distribution Center, traditional manual unloading and sorting lines were struggling to cope with rising parcel diversity—ranging from small 50g soft mailers to heavy 50kg corrugated cartons up to 1200mm in length.

During peak dispatch hours, manual sorting stations suffered from frequent congestion, mis-routing, and high labor turnover. To eliminate these operational bottlenecks, Songyang Hub partnered with YJ-INTL to deploy an industrial-grade, automated Narrow Belt Sorting System tailored to high-density, mixed-parcel logistics.

Key Site Challenges Before Automation:

• High Manual Labor Dependency: Unloading, aligning, scanning, and routing required 12 to 15 operators per shift, resulting in escalating payroll costs.
• Handling Irregular & Oversized Cargo: Standard sorters struggled to handle bulky packages, often causing line stoppages or requiring manual bypasses.
• Strict Space Limitations: The facility floor area ranges between 100m² and 500m², making traditional large cross-belt loops unfeasible due to space restrictions.
• High Accuracy Demands: Express service SLAs required mis-sort rates to remain strictly under 0.03% to avoid expensive secondary sorting loops.

The YJ-INTL Solution: Engineered Narrow Belt Sorter (200mm/300mm Pitch)

YJ-INTL engineered a fully integrated automated sorting loop featuring high-speed narrow belt carrier modules operating at 2.0 m/s to 2.5 m/s. The system combines flexible 200mm/300mm pitch geometry with intelligent multi-angle barcode scanning cameras and dual-side chute diversion mechanisms.

Core Technical Specifications & Deployment Parameters

Key Technological Breakthroughs

1. Blind Direct Feeding & Multi-Car Carrier Synergy

The system supports direct, unaligned manual or automated parcel infeed ("blind loading"). When an oversized package (up to 1200mm) passes through the sensor zone, adjacent narrow belt carriages automatically bind their movement to act as a synchronized multi-car carrier, diverting heavy items up to 50kg into assigned drop chutes safely.

2. High-Density Layout & Multi-Destination Chutes

Featuring dual-sided chutes, mesh cage guides, and adaptable bag-hanging frames, parcels slide smoothly into destination bags without structural damage. The compact 200mm/300mm pitch maximizes sorting density along a minimal linear footprint.

Project Results and Operational ROI

Since the official commissioning of the YJ-INTL Narrow Belt Sorting line at the Songyang Hub, operational efficiency metrics have improved dramatically:

• 60%+ Reduction in Labor Costs: The required site workforce decreased from 15 workers down to 4–5 operators responsible solely for infeed monitoring and full bag swapping.
• Zero Traffic Congestion: Continuous throughput reached a stable 10,000 PPH during peak dispatch windows.
• Rapid Capital Payback: Operational savings in labor, reduced parcel damage, and zero mis-sorting penalties yielded a projected ROI payback period of under 14 months.